2017-11-04 =============================================================================== If you are seeing this you must have obtained a snapshot of gnuplot development from the development cvs repository on sourceforge.net. This is out of date! As of December 2017 the development source has moved to using git rather than cvs. For the forseeable future gnuplot release tarballs and other files will continue to be distributed from http://gnuplot.sourceforge.net Please check there to obtain the current version or more information. =============================================================================== 2017-11-02 Ethan A Merritt * docs/gnuplot.doc src/gadgets.c: Remove obsolete comments and trivial typos. Add documentation section for piped input data. 2017-11-01 Ethan A Merritt * src/plot2d.c (histogram_range_fiddling): For stacked histograms, autoscaling did not distinguish between 'set xrange [*:*]' and 'set xrange [explicit_min:*]', always resetting min to -1. Bugfix 2017-10-30 Ethan A Merritt * src/gadgets.c (draw_clip_arrow): Do not call term->arrow() if the entire arrow is out of range. * src/graphics.c (plot_vectors): The code for 2D "plot with vectors" is redundant. Replace the core of it with a call to draw_clip_arrow(). * src/boundary.c (do_key_sample): Illustrate revision of a draw_clip_arrow() call site to use (double) rather than (int) parameters. The only reason for this is to allow draw_clip_arrow() itself to switch to (double) parameters if we decide that is useful, e.g. to handle arrows with length approaching zero. 2017-10-13 Petr Mikulik * src/pm3d.c (pm3d_draw_one pm3d_plot): Move call of term->layer() with TERM_LAYER_BEGIN_PM3D_MAP and TERM_LAYER_END_PM3D_MAP from pm3d_draw_one to pm3d_plot in order to avoid insertion of line commands between the %pm3d_map_begin and pm3d surface commands in the postscript file which broke the pm3dCompress.awk and pm3dConvertToImage.awk scripts. 2017-10-11 Ethan A Merritt * src/axis.c (gen_tics): The start point for log-scale tic placement could not lie outside the axis range (e.g. start at 1 for axis range [5:50]). Remove this restriction. Still not perfect backwards compatibility with log-scale tic placement in earlier versions. 2017-10-09 Ethan A Merritt * src/datafile.c (df_generate_pseudodata): The sample-generation code failed to distinguish between nonlinear x2 (primary axis hidden) and "set link x2 via f(x) inv g(x)" (primary axis x1). Bug #1973 * src/graphics.h src/unset.c: We have an enum AXIS_INDEX. Use it. (mostly to aid debugging; shouldn't affect code generation). 2017-10-08 Ethan A Merritt * src/axis.c (reconcile_linked_axes) src/axis.h src/plot2d.c: gnuplot version 5.0 always tracked the autoscale range on the primary axis (x1 or y1) of a linked pair, even if the data was actually plotted on x2 or y2. In verison 5.2 we track the data range on x1 x2 y1 y2 separately. This caused breakage wherever the program assumed the autoscale range on x1 (or y1) was always current. Worse, it would propagate that range onto the secondary axis, possibly overwriting the correct range. Now we introduce a new routine reconcile_linked_axes() that merges the min/max values from e.g. x1 and x2 so that the autoscaled range covers input data plotted on either axis. Bug #1973 * demo/linked_autoscale.dem: Exercise the new code (fails on previous gnuplot versions). 2017-10-06 Hans-Bernhard Broeker * src/command.c: Move WEXITSTATUS fall-back definition away from here. * src/syscfg.h: Include , if it exists. (WEXITSTATUS): Provide fall-back definition, if none in . Move MS Windows specific replacement from command.c to here. * configure.ac: Add call to AC_HEADER_SYS_WAIT 2017-10-06 Bastian Maerkisch * config/mingw/Makefile: Add helpfiles to "all" target, including the japanese version. Remove helpfile from default target. * config/mingw/Makefile: Default to Mingw-w64 and Direct2D v1.1. Note that building using Mingw32 currently does not work anyway due to missing headers libraries for newer Windows APIs. * config/mingw/Makefile: Add a note that secure APIs are required (pointed out by Allin Cottrell on the mailing list). * config/msvc/Makefile: Build and install support files for the lua/tikz terminal. src/win/wgnuplot.mnu: Add menu items to edit gnuplot.ini and wgnuplot.ini to 'Help' menu. 2017-10-05 Bastian Maerkisch * src/win/wd2d.cpp: Enable color font support. This enables colored emojis, which can be used e.g. as point symbols. Due to the default font-fallback to "Segoe UI Emoji", this might lead to unexpected results if a plot relied on non-colored character fallbacks. 2017-10-03 Ethan A Merritt * term/gd.trm: Report number of frames in completed animation sequence. 2017-10-01 Bastian Maerkisch * src/win/winmain.c|h src/command.c: For wgnuplot, open or attach to a console when executing system commands so we can its the output. That in my option eliminates the last benefit of wgnuplot_pipes over wgnuplot. Note that the process terminates if the new console is closed, just as is the case with wgnuplot_pipes, but the console is only opened when actually required. 2017-09-29 Ethan A Merritt * src/axis.h src/axis.c (axis_set_scale_and_range): Incorrect use of unsigned parameters caused terminal scaling to fail if the axis range was inverted. The error was introduced by converting from a macro to a subroutine in the run-up to 5.2. * src/gadgets.h src/graphics.c src/misc.c src/plot2d.c src/set.c src/tables.h: Rework parsing and handling of filledcurve options. * src/command.c (array_command): Allow size of an array to be determined automatically from the number of initializers. E.g. array A = ["a","b","c"] 2017-09-25 Ethan A Merritt * src/plot2d.c: smoothing options csplines|acsplines|bezier|sbezier failed to recheck inrange/outrange after smoothing. Example failure: plot [0:4][4:0] '+' using 1:1 smooth bezier w lines Bugfix 2017-09-23 Ethan A Merritt * src/axis.c (gen_tics) docs/gnuplot.doc demo/nonlinear6.dem: Revise documentation of "set xtics" to include examples and description of logscale keyword. Restore pre-5.2 behaviour that for log-scaled axes the increment in "set xtics {start,} incr {,end}" is interpreted as a multiplicative factor rather than a constant interval. However this is only true if the "logscale" attribute is set for axis tics. New demo nonlinear6.dem exercises this feature and also shows the use of "set tics rangelimit" with log-scaled axes. Bug #1971 * src/interpol.c (mcs_interp): The previous implementation of monotonic cubic splines did not guarantee that the original points were included in the set of generated points used to draw the resulting curve. This meant that the curve might not pass through all points. Now we merge the original points with the set of evenly sampled points. Thanks to K Antal for identifying and demonstrating the problem. Patch/Bug #1972 2017-09-21 Ethan A Merritt * term/cairo.trm (cairotrm_reset): Still trying to get this right. 2017-09-20 Ethan A Merritt * term/cairo.trm (cairotrm_reset): Revert change. 2017-09-19 Ethan A Merritt * term/cairo.trm (cairotrm_init cairotrm_reset): Valgrind complained that calling cairo_destroy(plot.cr) on exit triggered multiple reads of previously-freed data. It seems preferable to not call it on exit. It does make sense to call it if the terminal has been closed and then reopened. So we fix the ordering of code in cairotrm_init that frees the old plot.cr before reinitializing a new one. REVERT: This change caused some cairo installations to close pdf output file without proper termination of the contents. * src/parse.c (parse_array_assignment): Memory leak. * src/interpol.c: Dead code. * src/Makefile.am: Fix recipe for building qt embed_example 2017-09-18 Ethan A Merritt * src/datafile.c (f_columnhead df_set_key_title) src/datafile.h src/eval.h src/parse.c (create_call_columnhead) src/parse.h src/plot2d.h src/plot2d.c (reevaluate_plot_title) src/plot3d.c: Defer evaluation of "plot ... title " until after data is read in. This is important mostly for the case where the plot title contains text taken from a data column header. We can now drop an imperfect workaround that initially stored the title as @COLUMNHEADXXXX@ and then later replaced the placeholder text with the real column header text. Bug #1968 * demo/columnhead.dem demo/html/*: Add a demo for the new capability. 2017-09-17 Ethan A Merritt * src/set.c (parse_label_options): Memory leak. * src/graph3d.c src/plot3d.c: Initialize to prevent compilere warnings. 2017-09-15 Ethan A Merritt * src/plot2d.c src/plot3d.c: Starting in version 5, NaN and UNDEFINED input data points count toward the total number of points read. This caused the test for "no points read" to not terminate iterations of the form "for [i=min:*] ..." on the first missing file or invalid spec. To prevent runaway iteration we now test for "no INRANGE points read in". * src/datafile.c (f_columnhead): columnhead(N) invoked inside a using specifier now returns the actual column header. See Bug #1968 2017-09-13 Ethan A Merritt * src/graphics.c src/graph3d.c: The "title at {beg|end|}" options were originally intended as an alternative to the normal key, so preservation of the key layout was not a concern. This patch allows you to mix custom-placed titles with in-key titles in the same plot. Bug #1967 2017-09-11 Ethan A Merritt * src/graphics.c src/graphics.h src/set.c src/tables.c src/tables.h src/unset.c src/show.c src/save.c demo/image2.dem docs/gnuplot.doc: The default interpretation of RGB color components on input is that they are integer values in the range [0:255]. This matches the content of PNG and JPEG files. Since the interpretation of RGB color components has been decoupled from the palette range limits controlled by "set cbrange", data using some other RGB convention must be rescaled. This patch introduces a new command `set rgbmax`. The primary use is so that data using the convention that color components are floating point values in the range [0:1] can be plotted using set rgbmax 1.0; plot 'imagedata' with rgbimage * src/graphics.c (map_position_double): It is pointless to test for logscale in the "else" clause of an "if" statement that handles nonlinear axes. 2017-09-10 Ethan A Merritt * src/axis.c( gen_tics ) src/axis.h( reorder_if_necessary ): New macro to reorder the min/max of axis ranges (but could be used elsewhere). If the mapping function of linked axes inverts the axis direction, tics were not being generated because min > max. E.g. set link x2 via 100-x inv 100-x; set x2tics; plot [50:40] x * src/axis.c (parse_range): Refactor parse_range() to handle in-line ranges for linked or nonlinear axes. Bug #1964 * src/graphics.c (plot_border) src/boundary.c (boundary): Range-limited axes were not accounting for nonlinear or linked axes. Space reserved for long axis tic labels made the same mistake. Bug #1965 2017-09-05 Ethan A Merritt * src/axis.c src/axis.h src/datafile.c src/gp_time.h src/gp_types.h src/internal.c src/time.c demo/timedat.dem docs/gnuplot.doc: Gnuplot already supports relative time format specifiers %tH %tM %tS for output via strftime() and in the time format for axis tic labels. Now we add the same format specifiers as an option for input via strptime(). They can also be used to read data fields containing degrees/minutes/seconds. 2017-09-04 Dima Kogan * src/axis.c (clone_linked_axes): When sanity checking the via/inverse mapping functions for linked or nonlinear axes, adjust the allowable difference by a scale factor related to the axis range. * configure.ac: Add $LIBRARIES_FOR_X to WX_LIBS so that it pickes up -lX11 as required by wxgtk3 2017-09-04 Ethan A Merritt * src/set.c src/tables.c src/tables.h src/unset.c src/util.c src/util.h src/show.c: Developer-only command "set debug " intended to facilitate A/B testing of new code. Trial code can be wrapped in a test such as if (debug > 0) { execute trial code } 2017-09-03 Daniel J Sebald * configure.ac: Use AC_MSG_RESULT rather than AC_MSG_WARN to report which Qt version will be used. 2017-09-03 Ethan A Merritt * src/time.c (xstrftime): The variant format specs for time %tH %tM did not behave as documented in that hours wrapped at 24 and minutes at 60 if the decimal precision modifier was missing. 2017-09-02 Ethan A Merritt * src/axis.c (parse_range eval_link_function) docs/gnuplot.doc: Attempt to handle the case of linked axes (x+x2 or y+y2) and an in-line range specifier in the plot statement. This fix only addresses simple cases, such as set link x2; plot [x=min:max] something-using-x2 axes x2y1 Recommend to use separate "set xrange ... set yrange ..." instead. 2017-09-01 Bastian Maerkisch * src/win/winmain.c (ConsoleHandler): Install the console handler also for wgnuplot and wgnuplot_pipes. Avoids segfaults when closing the wgnuplot_pipes console window or the caca terminal console window. 2017-08-31 Martin Saturka * src/mousecmn.h src/mouse.c: Bind the < and > keys to change the current azimuth setting while mousing 3D plots. (EAM) add an internal flag "Opt-" so that you can bind a hotkey for which the Alt and Ctrl modifiers are optional rather than required. 2017-08-28 Bastian Maerkisch * config/mingw/Makefile: Fix target name of generated dependencies for pipe and console targets. 2017-08-24 Ethan A Merritt * src/axis.c src/axis.h src/graphics.c src/interpol.c src/plot2d.c src/plot3d.c: Revise macro name STORE_WITH_LOG_AND_UPDATE_RANGE to STORE_AND_UPDATE_RANGE since we no longer handle log scaling at the time data is stored. Take this opportunity to remove an unused parameter (OUT_ACTION) from the macro. Go back to using the same macro for the COLOR_AXIS that we use for all other axes. This is intended solely to make the code easier to understand; there is no change in the code actually executed. 2017-08-23 Ethan A Merritt * src/plot2d.c (parametric_fixup): Consolidate redundant code blocks handling the polar/cartesian paths through parametric function handling. * src/plot2d.c (store2d_point): Consolidate identical case statements for BOXPLOT, BOXES. 2017-08-22 Ethan A Merritt * src/grahics.c src/graphics.h (rgbscale) demo/image.dem: Since cbrange is now decoupled from rgbimage, the image and image2 demos need to change accordingly. Add a placeholder macro rgbscale(colorval) that for now only enforces that color components are in [0:255] but can later be replaced with an actual scaling routine. 2017-08-18 Ethan A Merritt * src/graphics.c (process_image): Limit alpha channel range to [0:255] in "with rgbalpha pixels". * src/axis.c src/datafile.c src/plot2d.c src/plot3d.c src/graphics.c demo/sampling.dem docs/gnuplot.doc: Allow explicit sampling interval in the range statements associated with pseudofile '++' in both 2D and 3D. Example: plot sample range [u=0:127][v=0:127] '++' using 1:2:(F(u,v)) with image * src/tabulate.c: Handle splot with rgbimage, rgbalpha 2017-08-17 Dima Kogan * src/plot2d.c src/plot3d.c src/graphics.c (process_image): Do not apply cbrange to rgbimage data. Do not use rgbimage range to autoscale cbrange. For now this means that rgbimage color components must be in the range [0:255], as they are for png, jpeg, etc. Later we may add an autoscaling option for user-supplied color values. * term/x11.trm src/qtterminal/qt_term.cpp: If the outboard driver cannot be started, point the user to environmental variable GNUPLOT_DRIVER_DIR. 2017-08-16 Ethan A Merritt * src/datafile.c (df_open): Expand leading ~ in filename for binary data files just as for text files. * src/plot2d.c src/graph3d.c src/wxterminal/gp_cairo.c: Add harmless initializations to silence compiler warnings. 2017-08-15 Bastian Maerkisch * src/msvc/Makefile: Eliminate the separate wrapper script for builds of console mode gnuplot by passing the file appropriate extensions as arguments to the script. * src/win/wgraph.c src/win/wgdiplus.cpp: We intend to scale line widths with resolution when printing, but we got that wrong due to confusion of constants. * src/win/wgraph.c (CopyPrint): Fix fallback from D2D to GDI+ for printing. 2017-08-12 Bastian Maerkisch * config/mingw/Makefile: "Recursive make considered harmful". Up until now we tried to reduce the number of rules by using recursive make for the three different targets "windows", "pipes" and "console". That broke parallel builds of the "all" target because of multiple attempts to build the same file due to insufficient dependency rules. Instead of fixing this, we now follow the same concept as the MSVC and OpenWatcom Makefiles and implement three set of rules and avoid recursive make altogether. This also allows us to implement separate automatic dependency rules. gnuplot scripts are now always executed using console mode gnuplot in order to see their output. * config/config.oww: Update to version 5.3. In particular enable boxed text and external functions and disable bitmap terminals by default. 2017-08-11 Ethan A Merritt * src/parse.c (check_for_iteration): If some depth of a nested iteration evaluates to an empty range, the evaluated limits of depths below it are irrelevant and possibly invalid. Add a test to skip evaluation at lower depthes in such a case. Bug #1952 2017-08-10 Bastian Maerkisch * config/msvc/Makefile: Handle empty lines in cl wrapper script. jom dislikes changing the directory in a rule twice, so spawn a subshell when required. Automatically generate timestamp.h for development builds. 2017-08-08 Ethan A Merritt * src/command.c src/parse.c src/plot2d.c demo/iterate.dem: Revise recursive iteration algorithm to address problems with empty ranges in a nested iteration. Add support for dynamic reevaluation of the string in nested ranges using "for [s in ]". Bug #1952 2017-08-09 Bastian Maerkisch * config/msvc/Makefile: Automatically generate dependency rules. Disabled by default since it slows down compilation. Enable with DEPEND=1. Patch #756 * config/msvc/Makefile: Improve compatibility with jom, the parallel nmake like build utility, by adding a space after every backslash at an end of line. Otherwise this would be treated as line continuation. * config/msvc/Makefile (zip): Distinguish 32/64 bit builds. 2017-08-07 Ethan A Merritt * src/plot2d.c src/plot3d.c: Revert inadvertent change of 2017-03-31 that failed to call update_gpval_variables in "set table" mode. Bug #1954 2017-08-07 Martin Beranek * term/metapost.trm: Support for user-defined dashtypes. 2017-08-06 Bastian Maerkisch * src/stdfn.c|h src/win/wtext.c (ms_snprintf, ms_vsnprintf): Starting with MSVC 2015 snprintf is finally C99 compliant. 2017-08-05 Ethan A Merritt * src/graph3d.c: "set key fixed" should be ignored in the case of "set view map". 2017-08-05 Bastian Maerkisch * src/set.c (set_table): Implement "append" option for datablocks. Bug #1951 * src/win/wd2d.cpp (d2dCreatePatternBrush): Scale pattern with desktop DPI if not using a D2D 1.1 DeviceContext. 2017-08-04 Ethan A Merritt * src/plot3d.c: Update FIXMEs, comments, remove typos, add initialization to avoid compiler warning (false positive). 2017-08-04 Hans-Bernhard Broeker * config/watcom/Makefile (WCFLAGS, WPPFLAGS): Drop -j option, which turned plain char into signed. That makes no sense anymore, now that we try to be 8-bit savvy. 2017-08-03 Ethan A Merritt * src/axis.h: Simplify the logic of macro ACTUAL_STORE_WITH_LOG_AND_UPDATE_RANGE 2017-08-03 Bastian Maerkisch * config/watcom/Makefile: Avoid expanding macros when extending the list of objects to build. * config/mingw/Makefile: Strip decorations when creating a 32bit library by using the -k option of dlltool. Revert the incorrect redirection change made on 2017-07-27. Bug #1942 2017-08-02 Ethan A Merritt * src/graphics.c: Separate code path for calculating image grid coordinates for logscale axes is now redundant. 2017-07-31 Ethan A Merritt * configure.ac src/axis.c src/axis.h src/color.c src/command.c src/mouse.c src/plot2d.c src/plot3d.c src/pm3d.c src/pm3d.h src/save.c src/set.c src/stats.c src/tabulate.c src/unset.c src/util3d.c: Version 5.2 introduced support for non-linear axes and used it to reimplement logscale. The new implementation was enabled by default but could be disabled by ./configure --without-nonlinear-axes Now we remove the option to disable it and remove the original version of macros AXIS_DO_LOG() etc belonging to the old implementation. The macros remain as no-ops but will be removed in later patches. * src/axis.c src/axis.h src/contour.c src/datafile.c src/eval.c src/graph3d.c src/graphics.c src/interpol.c src/mouse.c src/plot2d.c src/plot3d.c: Remove all instances of AXIS_LOG_VALUE AXIS_DELOG_VALUE * src/axis.c src/axis.h src/interpol.c src/mouse.c src/set.c: Remove all instances of AXIS_DO_LOG and AXIS_UNDO_LOG * src/axis.c src/axis.h src/gadgets.c src/graphics.c src/interpol.c src/plot2d.c: Remove all instances of axis_log_value axis_de_log_value axis_do_log axis_undo_log * src/axis.h: Always optimize evaluation of logscale coordinates * src/axis.c: Remove code only used by old logscale implementation * src/axis.c src/axis.h src/datafile.c src/plot2d.c: Replace old routine axis_unlog_interval() with a simpler check check_log_limits() to ensure min/max of a logscaled axis are positive * src/axis.c src/axis.h src/plot2d.c src/plot3d.c: Replace axis_revert_and_unlog_range() and axis_revert_range() with a single routine axis_check_range(). This was the last of the *_unlog_* routines. 2017-07-31 Bastian Maerkisch * config/watcom/Makefile: Optionally build with GDI+ or Direct2D/ DirectWrite. These libs are available at https://sourceforge.net/p/gnuplot/patches/746/ * src/win/wgraph.c: Wrap a few more GDI-only code sections with tests for USE_WINGDI. * src/win/wgnuplib.h (GW): Re-group fields. Separate GDI-only struct members. * src/win/wd2d.cpp: Enable compilation with OpenWatcom, which is missing __uuidof(). * src/win/wgraph.c src/win/wgdiplus.cpp src/win/wd2d.cpp (TEXTBOX_MARGINS): Adjust scaling of textbox margin to be more like what the qt terminal does (ie. much smaller). * src/win/wd2d.cpp: Missing WINAPI call type for print ticket API. * src/win/wgraph.c (CopyPrint): Check return values of GDI print API function calls. 2017-07-31 Ethan A Merritt * config/mingw/Makefile config/msvc/Makefile win/gnuplot.iss: The pm3d and contrib subdirectories are no longer in the distribution source, so they must not appear in the windows installer inventory. * src/Makefile.am (src/template.h): Remove dead file template.h 2017-07-30 Ethan A Merritt * src/set.c (set_view): Switching from "setview equal xy[z]" to "set view map" failed to clear the 3D aspect ratio flag, leading to conflicting scale factors. Now we treat it as "set size ratio -1", which is what the documentation says. Bug #1948 2017-07-30 Bastian Maerkisch * src/term.c (test_term): Disable extra space around textbox for size comparison. 2017-07-29 Bastian Maerkisch * config/mingw/Makefile config/msvc/Makefile: Mingw-w64 and MSVC have working popen/pclose implementations for GUI applications. So we use them instead of our own "fake" pipe emulation. Bug #1950 * src/win/winmain.c src/syscfg.h config/config.nt config/config.oww: Unicode support for popen. * src/stdfn.c|h src/command.c src/win/wgdiplus.cpp src/win/wd2d.cpp src/internal.c: Do not include windows.h in a header file and use the WIN32_LEAN_AND_MEAN define to speed up compilation. 2017-07-29 Ethan A Merritt * src/set.c (set_range): Allow to set range properties without changing the range min/max. E.g. "set xrange noextend". * src/axis.h (autoscale_one_point) src/plot2d.c src/plot3d.c: Refresh_bounds and refresh_3dbounds perform only a simplified version of autoscaling. Consolidate this into a macro autoscale_one_point(). Extend the simplified autoscaling to include both ends of a VECTOR plot. Other cases remain where the simplified autoscale is insufficient. Bug #1947 #1709 2017-07-27 Ethan A Merritt * src/fit.c: Ignore non-numeric contents of potential dummy variables x y t u v used during fit evaluation. Bug #1949 2017-07-27 Bastian Maerkisch * src/win/wd2d.cpp: Resize the swap chain buffers instead of recreating the swap chain when the window size changes. * src/win/wgraph.c term/win.trm: Default to Direct2D backend. 2017-07-27 Tatsuro MATSUOKA * config/mingw/Makefile (prntvpt.def): Need to disable Win64 FS redirection for 32bit builds. Bug #1942 2017-07-24 Ethan A Merritt * src/datafile.c (df_open): Reject plot command if input and output both use the same data block. Prevents memory corruption / segfault. 2017-07-24 Bastian Maerkisch * config/mingw/Makefile config/msvc/Makefile config/watcom/Makefile config/config.mgw config/config.nt config/config.oww src/syscfg.h src/command.c|h src/fit.c src/graph3d.c src/graphics.c src/mouse.c src/plot.c src/plot2d.c src/plot3d.c src/show.c src/term.c|h src/variable.c src/qtterminal/qt_term.cpp src/wxtterminal/gp_cairo.c src/wxtterminal/wxt_gui.h term/caca.trm term/gd.trm term/wxt.trm demo/gnuplot_plugin.h: Use only _WIN32 to test for Windows. This is pre-defined by all supported compilers. Eliminate uses of WIN32 and _Windows. 2017-07-23 Ethan A Merritt * src/fit.c src/command.c src/plot2d.c src/util.c src/term.c src/show.c src/save.c src/axis.c: Remove dead code, out-of-date FIXMEs, comments, etc. 2017-07-22 Ethan A Merritt * src/fit.c: The code saving the previous "fit" command incorrectly assumed that "fit" must be the first thing on the input line. This is clearly not true, particularly when the command is inside a {} bracketed clause since the entire clause acts as one long input line. Bug #1946 2017-07-20 Ethan A Merritt * src/datafile.c (df_open df_readascii expect_string) src/datafile.h src/plot2d.c src/tabulate.c src/tabulate.h docs/gnuplot.doc: Move code for "plot with table" into tabulate.c (tabulate_one_line). Plot styles (e.g. "with labels") already call expect_string(column) to signal that a particular input column is to be treated as a string. Now we add special case so that "with table" can use expect_string(-1) to signal that any column is treated as a string if its using specifier evaluates to a string. This allows "plot ... with table" to create tables containing strings and to use sprintf/gprintf to format numerical output. * src/set.c (set_separator) src/show.c (show_table): New command option set table {separator {comma|tab|whitespace|""}} allows "plot with table" to create csv files. * src/plot2d.c src/tabulate.c src/tabulate.h: EXPERIMENTAL feature (version in 5.3 is subject to change and may never appear in a released version in this form). plot ... with table if where can access input data fields by column number, etc, as if it were a using specification. Implemented only for "with table" but the mechanism could just as easily work for other plot styles. Example: plot using 1:2:($4+$5) with table if (strcol(3) eq "Red") 2017-07-18 Ethan A Merritt * src/plot2d.c src/plot3d.c: Fix inconsistent handling of "plot ... with table". E.g. "set style data table; plot foo" tried to both plot and tabulate. Warn that function plots are not handled. 2017-07-16 Ethan A Merritt * config/config.cyg config/config.mgw config/config.nt config/config.os2 config/config.oww configure.ac src/internal.c term/post.trm: snprintf() is now required. Remove vestigial tests for HAVE_SNPRINTF. 2017-07-14 Ethan A Merritt * src/mouse.c term/canvas.trm term/emf.trm term/tkcanvas.trm term/sixel.c src/time.c src/wxterminal/gp_cairo.c docs/doc2tex.c: Do not use C++ style comments in C source files. 2017-07-11 Ethan A Merritt * src/eval.c (magnitude) src/standard.c(f_abs f_ceil f_floor): src/internal.c (f_power): Use idiom fabs((double)i) rather than (double)(abs(i)) so that i can be either a short or long integer. Preparation for 64-bit int support. 2017-07-11 Bastian Maerkisch * src/win/wd2d.cpp: Create an IDXGISurface instead of IDXGISurface1. Bug #1941 * src/mingw/Makefile (clean): Remove prntvpt.lib|def as the lib has has to be recreated for 32/64 bit builds. Bug #1942 2017-07-11 Akira Kakuto * src/win/wgraph.c (GraphGetBitmap): Correct mixed up order of parameters for ReleaseDC(). 2017-07-10 Bastian Maerkisch * src/win/wgdiplus.cpp (SaveAsBitmap): Make sure that GDI+ is initialized. Bug fix. * src/win/wgraph.c (TryCreateFont): Silence font substitution warnings in GDI backend again. This is consistent with other backends and less annoying. * src/win/wgraph.c src/win/wcommon.h src/win/wgdiplus.cpp (SaveAsBitmap): Get a bitmap copy of the screen output with the help of a new routine GraphGetBitmap() extracted from CopyClip(). Fix for the D2d 1.1 case. 2017-07-09 Bastian Maerkisch * src/win/wgraph.c: Fix a few more oversights concerning the allocation of a separate subwindow for the graph (2017-06-24). 2017-07-08 Ethan A Merritt * src/term.c (test_term): Revise "test" command output. - simplify rotated text and arrow section - fix bug in "dumb" centering of polygon title - compare true textbox area with generic estimated text dimensions. 2017-07-07 Bastian Maerkisch * src/win/wd2d.cpp|h src/win/wgnuplib.h src/win/wgraph.c config/mingw/Makefile config/msvc/Makefile: Direct2D printing support. Requires D2d 1.1 and hence Windows 7 with platform update. Mingw-w64 currently misses the required prntvpt library and header, so we supply minimal definitions taken from MSDN inline and create a library from the DLL. * src/syscfg.h: Minimum required API version is Windows 7 by default. Vista and XP are end-of-service. 2017-07-07 Ethan A Merritt * term/dumb.trm: Slightly nicer arrows. 2017-07-06 Ethan A Merritt * src/qtterminal/qt_term.cpp (qt_boxed_text): Increase the textbox y margin slightly to allow more space for descenders. * src/scanner.c (get_num): More robust parsing of really big integer constants. E.g. "print 0x12345678901234567890" Use strtod() rather than atof() so that the parser's position in the input line is tracked. Also, do not assume that integers are necessarily 32-bits. * src/util.c (gprintf_value) src/util.h src/internal.c: gprintf() only takes a (double) parameter. The limits what can be provided to format strings or 64-bit integers. Provide a new variant gprintf_value() that instead takes a parameter (struct value *). 2017-07-05 Daniel J Sebald * src/qtterminal/QtGnuplotScene.cpp: Qt::Align{Foo} are bit definitions, not integers. Therefore tests should be of the form (alignment & Qt::AlignRight) rather than (alignment == Qt::AlignRight). 2017-07-05 Ethan A Merritt * src/term.c (set_term init_terminal) src/unset.c (unset_terminal) docs/gnuplot.doc: On entry, copy environmental variable GNUTERM to internal variable GNUTERM. Note that starting with version 5.2 this is a string that may include terminal options in addition to the terminal name. E.g. GNUTERM="post eps color size 5in,3in" Modify "set term " to look only at the first word of . Thus "set term GNUTERM" works as before. Note that "set term @GNUTERM" expands and applies the full set of options. Fix "unset term" to act equivalently to "set term GNUTERM" as documented. * src/eval.c (set_gpval_axis_sth_double): Remove unused parameter. * configure.ac docs/Makefile.am term/caca.trm: Add caca terminal documentation to the user manual. Fix segfault on "set term caca driver raw". 2017-07-04 Bastian Maerkisch * src/win/wgnuplib.h src/win/wgraph.c src/win/wgdiplus.cpp src/win/wd2d.cpp: Use a common definition of GWOPMAX and increase to accommodate e.g. typical pm3d plots. 2017-07-03 Bastian Maerkisch * term/win.trm: Cannot use docked graph windows in persist mode as the text window will not be shown. * src/internal.c: Windows time() implementation with sub-second resolution. * src/win/wgdiplus.cpp: Switching the compositing mode to take the gamma factor into account for filled polygons not only slows down drawing considerably, but also produces output different from other terminals or windows back-ends. So stop doing that. Also scale the linewidth when drawing anti-aliased polygons. Bug fix. 2017-07-02 Ethan A Merritt * src/graphics.c (place_raxis): Raxis was being truncated to R=0. I.e. set rrange [90:-30] lost the final quarter of the axis. Bug #1370 2017-07-01 Shigeharu Takeno * docs/doc2texi.el: Support for bulleted lists. * docs/term-ja.diff docs/gnuplot-ja.doc: Sync with gnuplot.doc 1.1092 * docs/gnuplot.doc: Typos in new Bessel function section. 2017-06-30 Bastian Maerkisch * src/win/wd2d.cpp: Fix center of rotation for enhanced text. Snap textbox coordinates to full pixels for vertical or horizontal orientation. 2017-06-29 Bastian Maerkisch * src/win/wgraph.c: Unbreak hypertext tooltips. Oversight in the change on 2017-06-24. 2017-06-28 Ethan A Merritt * term/canvas.trm (CANVAS_mouse_param) term/svg.trm (svg_mouse_param): Make these subroutines rather than macros. Eases abstraction to support 64-bit integer values. 2017-06-27 Bastian Maerkisch * src/win/wd2d.cpp: Respect the antialiasing setting. Always clear the polygon render target to avoid "ghost" images and enforce its size in pixels. * src/win/wd2d.cpp: Direct2D implementation of pattern fill using a bitmap brush. This eliminates the last GDI/GDI+ fallback, so we no longer aim to be compatible. * src/win/wd2d.cpp: Instead of converting between pixel units and so-called device-independent-pixels (DIPs) all the time, we now force the two units to be the same. For the DCRenderTarget this was always the case, for the HwndRenderTarget this is done by forcing the (internal) resolution to 96dpi, and the DeviceContext supports the SetUnit() call. Partially reverts the changes made on 2017-06-18. * config/mingw/Makefile config/msvc/Makefile src/win/wd2d.cpp|h: Optionally use Direct2D 1.1 and a DeviceContext as RenderTarget, which is available starting from Windows 7 with Platform Update and requires to link to Direct3D 11.1. Otherwise default to using a DCRenderTarget. 2017-06-26 Ethan A Merritt * term/dumb.trm: Core routine apply_lp_properties looks to see whether the current terminal lacks color support by testing the equivalence (term->set_color == null_set_color). Thus introduction of a non-NULL dumb_set_color() routine to support color output had the side-effect of losing the distinction between line types without color. Fix this by only listing dumb_set_color() in TERM_TABLE when color mode is active. Bug fix. 2017-06-24 Bastian Maerkisch * src/win/wgdiplus.cpp: We still need to indicate that text can be rotated. Bug fix. * src/win/wd2d.cpp: Do not abort drawing if an error is encountered. Add a few more error checks. * src/win/wd2d.cpp src/win/wgnuplib.h: Add code for using a DeviceContext as RenderTarget. Requires Direct2D 1.1 which is available starting from Windows 7 with Platform Update. Requires to link to the Direct3D 11.1 library d3d11.lib. Not yet enabled by default. * src/win/wgraph.c src/win/wgnuplib.h src/win/wd2d.cpp|h wcommon.h: src/win/wgnuplib.h: Allocate a separate subwindow for the graph instead of handling the drawing within the parent window. This makes the HwndRenderTarget (mostly) functional. * src/win/wd2d.cpp: Change the type of some parameters from bool to BOOL to avoid warnings. 2017-06-21 Bastian Maerkisch * src/win/wgnuplib.h: The dot needs not to be included in the number of different point types for cycling through. Bug introduced on 2017-05-13. 2017-06-21 Ethan A Merritt * src/standard.h src/standard.c src/eval.c docs/gnuplot.doc: Use Bessel functions j0, j1, jn, y0, y1, yn from libm if present. These replace the hard-coded implementations besj0, besj1, besy0, besy1 in standard.c. The old versions are still present if needed. Add wrappers besjn(i, X) besyn(i, X). The hard-coded implementations claimed accuracy to 1.e-13. The libm implementations claim accuracy to 2.e-16. 2017-06-20 Ethan A Merritt Bump version number of development branch to 5.3 2017-06-18 Ethan A Merritt * src/fit.c (save_fit) src/util.h src/util.c (num_to_str): save_fit() is the only external caller of num_to_str(). Call value_to_str() instead and make num_to_str() local to util.c. * src/internal.c (f_index): Repair memory leak when a datablock is accessed as $DATABLOCK[index]. 2017-06-18 Bastian Maerkisch Prepare use of HwndRenderTargets instead of a DCRenderTarget. This is a first step to support printing etc. also with the new Direct2D backend. * src/win/wd2d.cpp: Direct2D uses coordinates in "device-independent- pixels" (DIPs). For a DCRenderTarget these are identical to pixels, but for other rendering targets we need to take a conversion factor into account. Fixes drawing with the HwndRenderTarget. * src/win/wd2d.cpp|h (d2dInit) src/win/wgnuplib.h src/win/wgraph.c: Create a new HwndRenderTarget for every graph window. The DCRenderTarget can be shared. 2017-06-17 Bastian Maerkisch * src/win/wgraph.c src/win/wgnuplib.h: Remove the doublebuffer setting. It is always enabled. * src/win/wgraph.c src/win/wgdiplus.cpp src/win/wd2d.cpp src/win/wgnuplib.h: Remove remnants of the old oversampling code. 2017-06-15 Ethan A Merritt More corner-case failures found by fuzzing the demo set. * term/dumb.trm: terminal character grid y limit was not checked prior to printing text with color+utf8 attributes. * src/command.c (print_set_output): Fix failure to reset flag indicating output to a datablock. E.g. "set print $T; set print '-'; show print" * src/graphics.c: Sanity check for well-defined coordinates at the corners of an image. Variable initialization to make compiler happy. 2017-06-14 Ethan A Merritt * term/svg.trm: Normalize handling of terminal option "fontscale" to match other terminals. Remove obsolete keyword "fsize". * src/axis.c (eval_link_function): Executing the general case nonlinear mapping functions via a dynamically interpreting action table is slower than in-line evaluation. In the special case of log-scaled axes we can short circuit the general case evaluation by an immediate call to the log or exp function. This more than recovers the execution speed of pre-version 5 logscale code. log-intensive benchmark timings: version 4.6.6: 42.7u 42.7 total version 5.1 generic: 57.5u 66.2 total (why extra system time?) version 5.1 optimized: 42.1u 42.4 total * src/axis.c (gen_tics) src/contour.c (contour) src/plot2d.c (eval_plots) src/set.c (load_tic_series) term/emf.trm term/write_png_image.c: Explicitly initialize some variables indicated as suspect by compiler option -Wuninitialized. The one in set.c can cause a real fault; the others look like false positives to me but I am not 100% certain. Bug #1933 2017-06-14 Bastian Maerkisch * src/win/wd2d.cpp: When compiled with D2DDEBUG defined, enable the Direct2D debug layer. * src/win/winmain.c (WinExit): Missing cleanup of Direct2D resources. 2017-06-13 Bastian Maerkisch * src/win/wgdiplus.cpp: Cleartype text antialiasing seems to be only applied to horizontal text. Use grayscale antialiasing for rotated text. * src/win/wgdiplus.cpp (InitFont_gdiplus): Fix double application of fontscale. * src/win/wgraph.c (WriteGraphIni): Only save window size and position for standalone graph windows. * src/win/wd2d.cpp (W_line_width): Enforce a minimum line width of 1 pixel to avoid tiny dash patterns for grids in polar plots. 2017-06-12 Ethan A Merritt * src/util.c (gprintf): Sanity check for NULL format * src/datafile.c (df_open): Sanity check to catch "plot '+' binary ..." * src/plot2d.c (eval_plots): image plots cannot use '+' as input * src/gadgets.c (do_timelable): Previously we modified timelabel.text in place and then restored it afterwards. If the routine exited via int_error, the restore never happened. Fix: make a use-once copy of timelabel and print that instead. * src/hidden3d.c (build_networks): Empirical fix for array overrun faults found by fuzzing data fed to '-'. I don't understand the true general case that fails but ignoring input curves with "length <= 1" fixes the cases found by fuzzing. I worry there could be legitimate cases that this filter also catches although I haven't found one. * src/axis.c (clone_linked_axis): Sanity check that inverse mapping function does not yield NaN at axis range endpoints. * src/graphics.c (process_image): Sanity check for empty image data structure. 2017-06-10 Ethan A Merritt * src/show.c (show_version): Remove obsolete configuration options from the list shown by "show version long". 2017-06-08 Ethan A Merritt * src/graphics.c (plot_border): Autoscaled rrange should not disable polar border. Polar border should not be clipped to xy border. 2017-06-07 Bastian Maerkisch * config/msvc/Makefile: Enable Unicode build. Add missing user32.lib for gnuplot_qt. 2017-06-06 Bastian Maerkisch * src/win/wgraph.c: Make the inclusion of the GDI variant of the windows terminal depend on the preprocessor define USE_WINGDI. Disabled by default. 2017-06-05 Ethan A Merritt * src/command.c src/datablock.c src/datablock.h src/internal.c src/parse.c src/util.c: Extend array syntax to named datablocks. |$DATABLOCK| gives the number of lines in the block. $DATABLOCK[n] returns line n as a string. * demo/stringvar.dem: Use the new syntax to avoid creating a temporary file during execution of the demo. * src/graphics.h src/graphics.c src/graph3d.c: The 2D routine attach_title_to_plot() can be shared by the 3D code in order to support "splot ... with lines title at {beg|end}". 2017-06-02 Ethan A Merritt * term/util.c (gprintf): Do not use LaTeX formatting in tabular output. Bug #1931 2017-06-01 Ethan A Merritt * src/gadgets.c src/plot.c src/term.c (load_linetype): A 2017-04-10 patch re-ordered initialization to (1) error handling, (2) session state, (3) default terminal. This had the effect that a command in ~/.gnuplot that queried terminal state could segfault because the terminal had not yet been initialized. Now we reorder again to (1) error handling (2) terminal (3) session state from ~/.gnuplot. For safety also add sanity checks in load_linetype() so that term == NULL does not segfault. * src/datafile.c src/datafile.h src/plot2d.c docs/gnuplot.doc: The "thru" command, deprecated since version 4.0, is now removed completely. * src/command.c src/fit.c docs/gnuplot.doc: The "update" command, deprecated since 5.0, is now removed completely. Clarify that "[un]set clabel" is deprecated. 2017-05-30 Ethan A Merritt * term/post.trm term/qt.trm term/wxt.trm term/x11.trm term/xlib.trm Makefile.am TODO BUGS docs/gnuplot.doc: "set term" output now indicates which terminals are interactive. Extra distribution files updated in parallel with 5.2 release. 2017-05-30 (Debian /debian-science/packages/gnuplot.git/) * term/post.trm: Do not emit Author field containing current username. 2017-05-25 Bastian Maerkisch * src/win/wgraph.c (GraphEnd): Let the gnuplot core know the current window ID. 2017-05-23 Bastian Maerkisch * src/qtterminal/qt_term.cpp (qt_waitforinput): The Windows code waits for the named pipe internally used by the QLocalSocket object. But in some cases the Qt object itself will not provide new data. Handle that case by Sleep()ing to release the CPU instead of idling rapidly. Bug fix. 2017-05-22 Ethan A Merritt * src/term.h: Reenable dxf terminal in default build. Apparently it is still usable despite having been neglected for ~30 years. Nevertheless it would be nice if someone put in the effort to update it to the 2012 DXF standard. 2017-05-22 Ethan A Merritt * Branchpoint for 5.2 (cvs tag -b branch-5-2-stable) The main development branch (this one) remains 5.1 for now but will have its version number bumped to 5.3 when 5.2 is released later this year. >>> NOTE <<< Starting now ============ * Bugfixes for code already in place should be applied both to the main branch (this one) and to the stable branch (branch-5-2-stable). * Major new features and experimental changes belong here, not in the stable branch. They will appear eventually in release 5.4. * Minor new features can go in both branches at your discretion, but remember that the stable branch should ideally never break. That means new code should be tested here in the development branch first and only after testing be added or back-ported for 5.2. 2017-05-21 Ethan A Merritt * docs/gnuplot.doc: Various trivial tweaks to improve the layout and formatting of pdf documentation . Revised text for sampling,raise/lower, and pseudo-files '+' and '++. 2017-05-21 Bastian Maerkisch * term/win.trm src/win/wgraph.c src/win/wgdiplus.cpp src/win/wd2d.cpp src/win/wgnuplib.h: Pointscale option for the windows terminal. 2017-05-20 Bastian Maerkisch * src/win/winmain.c (ConsoleHandler) src/plot.c|h (terminate_flag) src/readline.c (readline): Add an event handler to catch "close" signals to console mode gnuplot on Windows. These events are passed on to the main thread to terminate cleanly. Bugs #1916, #1917, #1918 2017-05-19 Ethan A Merritt * src/command.c src/fit.c src/fit.h src/tables.c src/tables.h docs/gnuplot.doc: Deprecate command "update" in favor of new command "save fit ". "update" will remain in version 5.2 for backward compatability but will eventually go away altogether. 2017-05-19 Shigeharu Takeno * docs/term-ja.diff docs/faq-ja.tex docs/gnuplot-ja.doc: Sync Japanese documentation to doc version 1.1080 2017-05-18 Ethan A Merritt * docs/gnuplot.doc term/ai.trm term/corel.trm term/djsvga.trm term/dxf.trm term/dxy.trm term/emxvga.trm term/epson.trm term/excl.trm term/ggi.trm term/grass.trm term/hp500c.trm term/hpljii.trm term/hppj.trm term/mif.trm term/pbm.trm term/pc.trm term/regis.trm term/vws.trm: Flag bitmap and legacy terminals in the documentation. * src/term.h: Remove legacy terminals from the default build. corel (postscript variant of CorelDraw format circa 1995) dxf (Autocad DWGR10 format circa 1988) * docs/README docs/doc2tex.c: New markup ^#TeX in gnuplot.doc signals that the rest of the line is a LaTeX command to be passed through verbatim to the *.tex output stream. Ignored by other doc2foo paths. * docs/gnuplot.doc docs/plotstyles.gnu: Add figure for "with vectors". 2017-05-18 Shigeharu Takeno * docs/gnuplot.doc: typos, missing section for "set mttics". * docs/doc2rtf.c docs/doc2texi.el: Support for bulleted lists. 2017-05-15 Ethan A Merritt * src/mouse.c: Allow "bind 'shift-Button1' 'something'". Previously the shift key was ignored. 2017-05-15 Bastian Maerkisch * src/win/wgraph.c (MakeFonts): Revert accidental change made in revision 1.247. * src/win/wgraph.c (MakeFonts): Handle empty type face name (GDI). Bug #1860 2017-05-14 Ethan A Merritt * demo/Makefile.am.in src/fit.c: Suppress creation of fit log file during "make check". 2017-05-14 Bastian Maerkisch * docs/windows/doc2html.c: Support bulleted lists at top level (i.e. not in a table). * src/term.c (do_arc): Remove hack for the windows terminal which was meant to fix the drawing of circles, but broke it. Note that there are similar cases in the code (ellipses) where a hack like this is actually necessary. Further investigations required. Bug #1880 * term/win.trm: Update windows terminal help text to current status. * docs/gnuplot.doc: Add a few more items to the section describing new features. * src/win/wgraph.c: Use radio buttons to indicate the current backend selection. 2017-05-13 Bastian Maerkisch * src/win/wgnuplib.h src/win/wgraph.c src/win/wgdiplus.cpp src/win/wd2d.cpp: Replace defines for commands and point symbol types by enums. 2017-05-12 Ethan A Merritt * docs/doc2tex.c docs/doc2gih.c: Support bulleted lists at top level (i.e. not in a table). * NEWS docs/gnuplot.doc: Revise the section describing new features. 2017-05-08 Bastian Maerkisch * src/win/wgraph.c src/win/wd2d.cpp|h: Reorganize initialisation of the Direct2D backend to correctly init font related terminal properties. * src/win/wd2d.cpp (d2dSetFont): Missing init of indicator that text can be rotated. * src/win/wgraph.c (WM_SIZE): Track canvas (and window) size. * src/win/wd2d.cpp (D2DCOLORREF): Replace macro by an inline function. 2017-05-07 Ethan A Merritt * src/term_api.h src/set.c term/cairo.trm term/post.trm: In order to scale up an existing plot uniformly, e.g. for printing a poster-size PostScript or PDF file, it is convenient to be able to give the scale factor in the "set term" command. We already offer "set termoption {linewidth } {fontscale }". This patch adds "set termoption {pointscale }" to scale up pointsize. 2017-05-05 Ethan A Merritt * src/eval.c: Add some DEBUG_* variables to help diagnose problems on other people's machines. * src/show.c src/variable.h: All of the *_handler(ACTION, PARAM) calls are hidden by macros defined in variable.h except for ACTION_SHOW. Wrap these calls in a macro also. 2017-05-02 Ethan A Merritt * term/canvas.trm: Fix incorrect initialization of axis width/height. Bug #1925 2017-04-25 Ethan A Merritt * src/fit.c (backup_file) demo/fit.dem docs/gnuplot.doc: The "update" command has not worked exactly as documented since version 4.something. Revise the documentation and the support code. Remove pointless use of "update" from the fit demo. * docs/gnuplot.doc demo/cerf.dem demo/complex_trig.dem demo/heatmaps.dem demo/pm3d_lighting.dem demo/rgb_variable.dem: Update demos in accordance with the recent change to have '++' sample on u and v rather than x and y. 2017-04-25 Bastian Maerkisch * src/win/wgdiplus.cpp: Graphics::MeasureString did not take trailing spaces into account. Bug fix. 2017-04-24 Bastian Maerkisch * src/command.c (do_system): Report return code of (_w)system() also on Windows. 2017-04-24 Akira Kakuto * src/command.c (report_error): Dummy up WEXITSTATUS(ierr) as a no-op for _WIN32. 2017-04-23 Bastian Maerkisch * src/win/wd2d.cpp|h src/win/wgraph.c src/win/wgdiplus.cpp|h src/win/wgnuplib.h src/win/winmain.c src/win/wresourc.h term/win.trm config/mingw/Makefile config/msvc/Makefile config/config.nt config/config.mgw: New windows terminal backend which uses Direct2D and DirectWrite instead of GDI+ or GDI. It uses graphic card acceleration and is hence typically much faster. DirectWrite offers a much superior text rendering quality in particular for rotated text. The terminal is feature-complete for drawing to the screen. Printing, copying to clipboard and saving of EMF fall back to the GDI+ code. Pattern fill is still implemented using GDI+ and is slow. As of now, this code is considered experimental. * src/win/wgraph.c src/win/wcommon.h (draw_image): Make static. * src/win/wgraph.c src/win/wgdiplus.cpp: Off-by-one error in mapping of graph coordinates. * src/win/wgdiplus.cpp (SetFont_gdiplus): Fix memory leak and simplify a bit. * src/win/wgdiplus.cpp: Use a compatible bitmap for cached point symbols. Eliminates artifacts on some systems. 2017-04-22 Ethan A Merritt * src/command.c (do_system do_system_func report_error) src/eval.c docs/gnuplot.doc: Introduce new user-visible variables GPVAL_SYSTEM_ERRNO and GPVAL_SYSTEM_ERRMSG that hold the status returned by system "some command" ! "some command" foo = system("some command") foo = "`some command`" 2017-04-21 Bastian Maerkisch * src/win/wgdiplus.cpp: Correct calculation of vertical drawing position. Corrects differences between position of point symbols and error bars. 2017-04-19 Ethan A Merritt * src/wxterminal/gp_cairo.cpp (gp_cairo_boxed_text): Scale linewidth of textbox border by the current terminal linewidth setting. Bug #1825 * src/gadgets.h src/gadgets.c src/save.c src/set.c docs/gnuplot.doc: Add a "linewidth" property to the textbox style. 2017-04-19 Bastian Maerkisch * configure.ac docs/Makefile.am: Some systems allow for parallel installation of different lua versions (e.g. Ubuntu). We already use pkg-config to test for "lua" and "lua5.1" packages. This patch extends that mechanism to lua5.2 and lua5.3. Change the name of the lua executable used to build the docs of the gnuplot lua terminal accordingly. Patch #750 * src/win/wgdiplus.cpp (drawgraph_gdiplus): Use generic string format to determine string extent. Bug fix. * term/caca.trm: Eliminate compiler warnings. 2017-04-18 Ethan A Merritt * src/graphics.c (place_objects): Error messages from placement of circles and ellipses were misleadingly refering to "rect N" instead of "object N". * src/graph3d.c (map3d_position_r): Placement of generic objects in "set view map" mode should not fail just because the z coordinate is non-positive and z is log-scaled. The projection only uses x and y. * src/parse.h src/parse.c src/misc.c (parse_fillstyle): New utility routine is_function(token) for convenience in parsing. * src/graph3d.c (draw_3d_graphbox): Clipping area was not maintained across this routine, causing object clipping in "set view map" to fail. 2017-04-11 Ethan A Merritt * src/graphics.c docs/gnuplot.doc demo/armillary.dem: Allow polar (cylindrical) coordinates for circles in 3D plots. 2017-04-10 Ethan A Merritt * src/eval.c (update_gpval_variables): New exported variables giving screen coordinates of the 3D plot axial center and radius of the enclosing sphere. GPVAL_VIEW_XCENT GPVAL_VIEW_YCENT GPVAL_VIEW_RADIUS. * src/graphics.c (place_objects): Allow placement and size of circles in 3D plot to use axis coordinates (used to only allow screen coords). As in 2D, the radius of the circle is always scaled to match the x axis and the circle itself is always drawn in the plane of the figure. * demo/armillary.dem docs/gnuplot.doc: Document and provide example for use of axis coordinates to place circles in 3D. * demo/Makefile.am.in: Place quotes around $(GNUTERM) so that multi-word definitions do not gum up "make check". * src/plot.c src/term.c: Defer detection of initial terminal type until after error handling has been set up. This allows us to parse GNUTERM for terminal options in additional to the bare terminal name. E.g. GNUTERM="wxt size 500,500" 2017-04-03 Ethan A Merritt * src/command.c (save_command): Don't use loadpath to choose an output directory. 2017-04-02 Daniel J Sebald * src/eval.c (update_gpval_variables): Sanity check the string stored in GPVAL_PWD. However if the current directoty is invalid GPVAL_PWD still contains the previous string. * src/command.c (pwd_command): Sanity check the validity of the current working directory. 2017-04-01 Ethan A Merritt * src/mouse.c term/qt.trm src/qtterminal/qt_term.cpp src/qtterminal/QtGnuplotWindow.cpp: The qt terminal assumed that "space-raises-console" would be implemented in the core code. But it never was. Instead on non-MSWin platforms hitting in the qt window generates a mouse protocol error. Document that "space-raises-console" is only for MSWin, and have other platforms treat it like any other key. * configure.ac src/gplt_x11.c src/wxterminal/wxt_gui.cpp: The code chunk in gplt_x11.c that supports space-raises-console for the KDE3 konsole was giving compiler warnings. Rather than fiddle with code used by almost no one (it doesn't work under KDE4 or KDE5), make KDE3+DCOP support a build-time option: ./configure --with-x --with-x-dcop 2017-04-01 Daniel J Sebald * src/plot.c (main): Exit with error if dropping privilege fails. 2017-03-31 Ethan A Merritt * src/plot2d.h src/plot3d.c src/datafile.c: Add a slot in the plot structure to track a 2nd named sampling variable, e.g. splot [u=1:5][v=1:5] '++' using (u):(v):(u*sin(v)) * src/plot2d.c src/plot3d.c: Extend the sampling range parsing to track named sampling variables for 2D sampling '++' as well as 1D sampling '+'. Minor cosmetic modifications to the 2D and 3D code to make it more obviously parallel. * demo/sampling.dem: Add example of named sampling ranges in 3D. * src/graph3d.c (do_3dplot): "set xyplane at 0; set log z; splot..." => no plot drawn. Change this so that "at 0" for logscale z is treated as "xyplane at ". Bugfix. 2017-03-29 Ethan A Merritt * src/axis.h (ACTUAL_STORE_WITH_LOG_AND_UPDATE_RANGE) src/axis.c (update_primary_axis_range) src/plot2d.c src/plot3d.c src/datafile.c (df_generate_pseudodata): The nonlinear axis code as originally introduced tracked data min/max in the primary (i.e. linear) axis structure. That was unnecessarily complicated since it required a coordinate transformation to update the range every time a point was stored. Also since the current range stored in the visible axis structure was not always up-to-date, some autoscaling operations during plot layout could fail. Now we change this to track data min/max in the secondary (i.e. visible) axis coordinate system. At the end of data input and function evaluation we call new routine update_primary_axis() just once per nonlinear axis to transfer the min/max values to the primary axis structure as well. * demo/sampling.dem: Unit tests for some of the failures addressed by this set of changes and a couple that have not been fixed yet. * src/axis.h src/plot2d.c: The macro ACTUAL_STORE_WITH_LOG_... no longer needs a special case parameter for the color axis. 2017-03-26 Ethan A Merritt * src/datafile.c (df_generate_pseudodata): Use axes u and v to sample pseudofile "++" rather than axes x and y. This allows for sampling ranges that are distinct from the plot axis range, as was already true for sampling "+". The downside of this change is that we don't currently support nonlinear sampling on u or v, so it doesn't work as well when plotting logscale x or y. * src/plot2d.c (plotrequest): Initialize state of u and v axes. 2017-03-20 Jeremy Green * src/graphics.c (plot_betweencurves): Revised algorithm for filling the area between two curves. Rather than filling adjacent segments one by one, trace the outline of the entire filled area. This avoids artifacts at the boundaries between segments. 2017-03-19 Ethan A Merritt * src/gadgets.h src/graphics.c (plot_border): Range-limited y2 axis was drawn in the wrong direction (top-to-bottom rather than bottom-to-top). If the top plot border was drawn also, this resulted in a spurious diagonal line across the plot. Bug #1921 2017-03-16 Ethan A Merritt * src/interpol.h src/interpol.c src/plot2d.c docs/gnuplot.doc: Clean up code, documentation, and demos for the 'bins' option. - document the algorithm for choosing bins - binrange defaults to min/max of current data set (not axis range) - trap degenerate case of all points UNDEFINED - new option binwidth=. Now you can either determine binwidth from range + nbins, or nbins from range + binwidth * src/plot2d.c src/tables.c: "smooth bins" is the same as "bins". * src/set.c (set_table): The "set table " command was not doing tilde expansion on filename. * src/datafile.c (df_open): If the previous plot command plotted from an array by name, try to retrieve that array by name for a subsequent plot that uses the special filename '' or "". E.g. plot Array with lines, '' with impulses * configure.ac: enable/disable comment for stats command was reversed 2017-03-13 Ethan A Merritt * src/graphics.c (plot_impulses) docs/gnuplot.doc: Apply the x offset created by "set jitter" to 2D plots with impulses. 2017-03-10 Ethan A Merritt * docs/gnuplot.doc: Restore EXPERIMENTAL warning to documentation for the "bins" plotting option (it had been removed 2017-02-19). We may consider changing the interpretation of binrange [min:max] to be more consistent with R, so warning that "implementation details may change before inclusion in a stable release" is appropriate. 2017-03-08 Ethan A Merritt * src/plot2d.c (eval_plots): Do not enforce cbrange validity if the palette is unused by this plot. Prevents spurious error from "set log" with default cbrange. Bug #1920 2017-03-05 Ethan A Merritt Deal with various corner-case failures found by fuzzing the demo set. * src/hidden3d.c (build_networks): A degenerate polygon can fall all the way through the classification loop, leaving the flag value -2 as the polygon number which is then used as an array index. Oops. * term/dumb.trm (DUMB_options): Sanity check terminal size. * src/plot2d.c (eval_plots): Dummy variable must not be an array. E.g. array t[10]; set dummy t; plot t * src/plot2d.c (get_data): Defer initialization of parallel plot data structures so that it catches both "set style data parallel" and "with parallel". Example failure case: set style data parallel; plot 'silver.dat' using 1:2:3 lc var * src/plot2d.c (eval_plots): Recently added stringent tests on axis scaling caused "plot with table" to fail because the y axis range is undefined. Skip the tests for this plot style. 2017-03-01 Ethan A Merritt * src/command.c (plot_command splot_command) src/gplt_x11.c src/qtterminal/QtGnuplotScene.cpp src/wxterminal/wxt_gui.cpp: The toggle status of all plots (plot visible or hidden) was being reset in the terminal driver on every clear() event. This caused the toggle state to be lost when the plot was rotated/panned and on refresh/replot. Now we do away with the automatic reset in the terminal drivers. Instead we send term->modify_plots(MODPLOTS_SET_VISIBLE, -1) as part of the plot and splot commands. 2017-02-27 Shigeharu Takeno * src/wxterminal/wxt_gui.cpp: Rename static int yield to avoid name conflict on Solaris 10. Bug #1914 2017-02-27 Ethan A Merritt * src/stdfn.c: Clarify warning message for abnormal exit. Bug #1913 2017-02-24 Ethan A Merritt * src/interpol.c (do_cubic) docs/gnuplot.doc: Document that smooth options (splines and bezier variants) are sensitive to blank lines and undefined values in the input data. Curves are fit separately to each uninterrupted subset of the original data. Curve segments that are entirely out of range on x are now ignored rather than triggering a error message. Bug #1911 2017-02-23 Bastian Maerkisch * src/term.c (term_initialise): Revise the test for output of binary data to the wgnuplot text window by checking if the terminal actually writes to output. Fixes caca output to a console window in wgnuplot. Bug #1912 * demo/borders.dem demo/boxclusters.dem demo/boxplot.dem demo/circles.dem demo/ellipse.dem demo/ellipses_style.dem demo/histograms.dem demo/histograms2.dem demo/matrix_every.dem demo/mgr.dem demo/molecule.dem demo/orbits.dem demo/parallel.dem demo/probably_tux.dem demo/solar_path.dem demo/special_chars.dem demo/stats.dem demo/ttics.dem demo/world2.dem: End all demos with 'pause -1; reset'. Set encoding to utf8 when required. 2017-02-19 Ethan A Merritt * src/plot2d.h src/plot2d.c src/interpol.c: Remove the EXPERIMENTAL warning and conditional compilation for "smooth bins". * src/datafile.c (df_readbinary) src/plot2d.c (get_data): Version 5 intentionally returns input data with a flag UNDEFINED rather than skipping the point altogether. Unfortunately the binary data input path failed to clear/initialize/set-to-NaN the value returned from function evaluation during binary data input. Now we explicitly set NaN in additional to returning DF_UNDEFINED. This fix is incomplete because store2d_point() later overwrites the UNDEFINED flag, which is almost certainly the wrong thing to do. Bug #1911 * term/svg.trm: Default to embedding generated images rather than creating and linking to separate *.png files. Bug #1801 2017-02-17 Ethan A Merritt * term/canvas.trm term/js/gnuplot_mouse.js term/js/gnuplot_svg.js term/svg.trm: Mousing support for "set theta ". 2017-02-16 Ethan A Merritt * src/plot3d.c: When hidden3d mode is set, two linetypes are reserved for each plot (front and back surface). This is not necessary if both the front and the back use the same linetype ('set hidden3d nooffset'), so if the linetype offset is zero then reserve only one linetype. 2017-02-16 Bastian Maerkisch * docs/plotstyles.gnu: On Windows, use "Tahoma" instead of "Times" "Times New Roman". The former is not available and the later does not provide the characters required by the 2nd "with labels" plot. Scale down fontsizes to better fit the size of the plots. 2017-02-15 Ethan A Merritt * src/misc.c src/hidden3d.c: Arrowhead properties were being applied as each plot was set up. This doesn't work in hidden3d mode because arrows from multiple plots are sorted jointly and drawn later. Arrowhead style must be applied separatedly for each arrow. Bug #1492 2017-02-15 Bastian Maerkisch * config/config.oww config/watcom/Makefile src/win/winmain.c: Enable fake pipes for OpenWatcom. Here the system() function requires the command string to include the shell and wide character variant _wsystem() does not seem to work. * src/win/wgraph.c: Fix initialization of the graph window struct when switching from standalone to docked mode and a previous window was open. * config/mingw/Makefile: New variable CWFLAGS for warning flags to be put last in CFLAGS in order to overwrite e.g. -Wall. * config/mingw/Makefile: New target "7z" which is similar to the "zip" target but outputs a 7-zip packed binary package. 2017-02-14 Ethan A Merritt * src/axis.c src/axis.h src/graphics.c src/save.c src/set.c src/show.c src/tables.c src/tables.h src/unset.c src/mouse.c src/boundary.c docs/gnuplot.doc demo/ttics.dem demo/solar_path.dem: New command set theta {right|top|left|bottom} set theta {clockwise|cw|counterclockwise|ccw} controls layout of polar mode plots by specifying where to place the origin (theta=0) of the angular coordinate and its sense of rotation. The default remains "right" and "counterclockwise". 2017-02-10 Mojca Miklavec * src/qtterminal/qt_term.cpp term/aquaterm.trm: Make the the "set term ... linewidth" option more like other terminals. 2017-02-09 Shigeharu Takeno * configure.ac: Require glib version >= 2.28 (because src/wxterminal/gp_cairo.c now uses the g_clear_object macro) 2017-02-09 Ethan A Merritt * term/aquaterm.trm term/qt.trm src/qtterminal/qt_term.cpp term/wxt.trm: Add "linewidth " to the list of options accepted for "set term" or "set termoption". * configure.in term/qt.trm: Qt4 info only printed for Qt4 build. Bug #1905 2017-02-07 Ethan A Merritt * src/hidden3d.c (build_networks): Hidden3d structures were not correctly initialized for "splot with dots". Bug #1904 * src/boundary.c src/graph3d.c: Use the shared routine write_label() to handle the key title. 2017-02-06 Ethan A Merritt * src/plot2d.c: Limit the scope of a sample variable to the plot command it is used in. I.e. restore value of t after execution of plot sample [t=0:10] '+' using (f(t)):(g(t)) Bug #1755 2017-02-04 Ethan A Merritt * src/parse.h src/parse.c src/util.c src/command.c docs/gnuplot.doc: Limit the scope of an iteration variable to the command or clause being iterated. I.e. after execution of an iteration "for [N=1:10]" N retains whatever value it had prior to the iteration, possibly NOTDEFINED. For iterated plot and set statements this is robust against errors. However an error exit from inside a "do for [foo = ] {}" clause may leave foo with some intermediate value. Bug #1891 2017-02-03 Ethan A Merritt * src/gplt_x11.c: Zero out each command string as it is freed. I am not sure this fixes a reported use-after-free segmentation error but it can't hurt. Bug #1866 2017-02-01 kh.moriyama * src/axis.c src/axis.h src/gadgets.c src/gadgets.h src/graphics.c src/graphics.h src/misc.c src/save.c src/set.c src/term_api.h docs/gnuplot.doc: New keyword "pointnumber|pn" to limit the total number of point symbols that lie along a plot "with linespoints". Similar to "pointinterval" except that the resulting spacing between point symbols does not depend on the total number of data points. 2017-02-01 Ethan A Merritt * src/graph3d.c (plot3d_points) src/gadgets.c src/gadgets.h: Apply pointinterval property to splot with linespoints. * src/hidden3d.c: Apply pointinterval property in hidden3d mode also. 2017-01-29 Bastian Maerkisch * config/config.oww: The OpenWatcom v2 fork has erf and erfc. * src/win/wmenu.c: Revise the patch dated 2017-01-25 so it does not break non-UNICODE builds. * src/stdfn.c|h src/misc.c config/config.mgw: Always use our own Windows version of opendir and friends as they handle encodings. Bugfix. * src/stdfn.c src/syscfg.h src/util.c src/win/wmenu.c: Only include direct.h where required. Remove a few unnecessary includes. * src/win/mingw/Makefile: Optionally use pkg-config to use gdlib. Required with recent updates of MSYS2/Mingw-w64 2017-01-28 Bastian Maerkisch * src/stdfn.c|h (gp_getcwd): New function for Windows which is aware of the current internal encoding. Bugfix. 2017-01-26 Ethan A Merritt * src/datafile.c (df_determine_matrix_info): Check and report error return from fseek, which cannot work if the input stream is a pipe. Now you get: "seek error in binary input stream - Illegal seek" instead of the non-informative "File doesn't factorize into full matrix". Bug #1901 2017-01-25 Bastian Maerkisch * src/win/wgdiplus.cpp config/config.oww config/watcom/Makefile: Enable build with OpenWatcom and GDI+. See Patch #746. * src/win/wprinter.c: Add missing calling convention. 2017-01-24 Stefan Althoefer * term/js/gnuplot_mouse.js: Improved placement of hypertext and mouse-click output. Fix multiline hypertext. 2017-01-24 Ethan A Merritt * term/canvas.trm term/svg.trm term/js/gnuplot_mouse.js term/js/gnuplot_svg.js: Mouse support for inverted r axis. 2017-01-24 Bastian Maerkisch * src/win/wgraph.c (SaveAsEMF): Default to EMF+ format when using the GDI+ backend. * src/win/wgraph.c (CopyClip): Only attempt to set clipboard data if the bitmap/metafile handle is valid. Emit an error message otherwise. * src/win/wgdiplus.cpp (clipboard_gdiplus): Retrieving the handle to the metafile requires releasing the graphics object first. Fixes copying EMF data to clipboard. * src/win/wgdiplus.cpp (clipboard_gdiplus, metafile_gdiplus): Explicitly set the size of the metafile. * src/set.c (set_degreesign): Remove special Windows code since we cannot rely on the locale on this platform. Fixes degree sign for UTF-8 encoding. 2017-01-23 Ethan A Merritt * term/pslatex.trm: Do not write postscript comments in output stream to cairolatex terminal. Bug #1898 * src/axis.h src/graphics.c: Fix type mismatch in numeric comparison (clang generates an error or warning). 2017-01-22 Ethan A Merritt * src/set.c (parse_label_options): Save label z value into its point colorspec as well as its text colorspec Bug #1897 2017-01-21 Bastian Maerkisch * src/win/wgnuplib.h src/win/wgraph.c src/win/win/wmenu.c src/win/wtext.c: Fix string formats and messages in several places to make non-Unicode builds work again. * src/win/wprinter.c: Fix compiler warnings. 2017-01-21 Ethan A Merritt * src/datafile.c (f_dollar f_column df_readascii): Version 5 was supposed to do away with differences between data read by 'plot ... using N' and 'plot ... using ($N)'. It turns out that was not true with regard to missing data. If the "missing" flag is present in the data then 'using N' catches it but 'using ($N)' does not. The problem is that ($N) and (column(N)) and "header_of_N" all invoke expression evaluation, which has had no mechanism to indicate a missing value on return rather than NaN. This patch overloads the imaginary slot of a complex NaN value to hold DF_MISSING rather than 0.0 on return from f_dollar() and f_column() as appropriate. For convenience the body of f_dollar() is replaced by a pass-through to f_column() so that both routines behave the same way. Bug #1896 * src/plot2d.c (get_data) src/set.c src/show.c docs/gnuplot.doc: The fix for bug #1896 did not address the case where a missing value is encountered during evaluation of an expression. E.g. 'using ($1+$2)' when there is missing data in either column 1 or 2 will evaluate to NaN. This patch adds an additional option 'set datafile missing NaN' that tells gnuplot to treat NaN data values as missing rather than invalid. Based on patch #725 (Christoph Bersch) 2017-01-20 Bastian Maerkisch * src/win/wgdiplus.cpp (gdiplusCreatePen): Remove now unused static function. 2017-01-18 Ethan A Merritt * src/save.c (save_linetype): Save and show commands were failing to list linecolor for lines that were originally specified as "lt -1". * src/graphics.c (plot_border draw_polar_circle) src/set.c src/show.c: New command "set border polar" draws a circle with radius matching the highest tic position on the r axis. 2017-01-17 Ethan A Merritt * src/graphics.c: Wrap polar grid radial lines in terminal notification TERM_LAYER_{BEGIN|END}_GRID 2017-01-15 Ethan A Merritt * src/axis.c src/gadgets.h src/graphics.c src/save.c src/graph3d.c docs/gnuplot.doc: New keyword `polar` to specify position. This allows labels, arrows, and objects to be placed in 2D plots using polar coordinates and in 3D plots using cylindrical coordinates. 2017-01-13 Ethan A Merritt * src/axis.c src/axis.h src/boundary.c src/plot2d.c src/plot2d.h: Continue consolidation of polar to cartesian coordinate conversion. This patch fixes various problems with logscale r axis tic placement. It adds a filter to categorically reject points with negative r value if the raxis is logscaled. 2017-01-12 Ethan A Merritt * src/unset.c (unset_polar): "reset" needs to free data structures and rotation for ttics. 2017-01-10 Ethan A Merritt * src/save.c src/set.c src/show.c src/tables.c src/tables.h src/unset.c src/boundary.c src/plot2d.c src/plot2d.h docs/gnuplot.doc: New command "set rlabel" places an axis label above the raxis. The label is printed whether or not the program is currently in polar mode. Keywords for offset, font, etc as for the other axis label commands. * src/axis.c src/gadgets.c src/gadgets.h src/graphics.c src/mouse.c src/plot2d.c src/set.c docs/gnuplot.doc: Support inverted r axis range. rrange must be linear and have fixed max/min (no autoscaling). Bug #1880 Allows use of polar mode to display a projection of celestial horizontal coordinates (altitude + azimuth) with the zenith (altitude 90) at the center and the horizon (altitude 0) at the perimeter. Theta represents the azimuthal angle. * demo/solar_path.dem demo/solar_params.dem demo/all.dem: Use inverted rrange to display solar path at a specific latitude in celestial horizontal coordinates. 2017-01-08 Ethan A Merritt * src/axis.c (gen_tics) unset.c (unset_polar): Allow placement of tics and tic labels along THETA (set ttics) using angles outside the fixed range [0:360]. Handle auto-generated tic at 360 as a special case and omit it if there is already a tic at 0. * src/boundary.c src/graphics.c (ttick_callback place_grid): Reserve sufficient space for THETA tic labels at the top and bottom of plot. ttic labels should not toggle on/off with the grid. Bug #1892 * src/set.c (parse_plot_title) src/plot2d.c (attach_title_to_plot): Accept keywords {left|right} to control text justification of a plot title positioned at the beginning or end of a plotted line. E.g. plot FOO ... with lines title "Foo" at end {left|right} * src/plot2d.c (polar_to_xy): Rename theta_r_to_x_y() to polar_to_xy() and add parameter TBOOLEAN update TRUE - do range-checking against rrange and update limits if autoscaling FALSE - convert theta;r to x;y with no range checking or update This patch moves the range checking done at each original site into the shared routine. The original range checks were not identical so it is possible that consolidation breaks something. In particular the call from parametric_fixup() originally updated rrange based on fabs(r) rather than r. If necessary we can replicate this using two successive calls to polar_to_xy(). * src/plot2d.c (polar_to_xy): Mapping negative numbers onto a polar plot with (R_AXIS.min != 0) was giving incorrect placement. This patch catches and corrects most of the bad cases. Examples that were bad before this patch: set polar; set grid polar; set rrange [1:5]; plot -2, 3 (note that the "-2" circle was drawn outside the "3" circle load 'ttics.dem'; set rrange [1:6]; replot (weird displacement of -t curve) Some corner cases may remain (e.g. nonlinear R with nonzero min) Bug #1892 2017-01-07 Akira Kakuto * src/win/wgraph.c (UpdateStatusLine): Re-order code to support MSVC 2010 (and OpenWatcom). 2017-01-06 Bastian Maerkisch * src/win/wcommon.h src/win/wgnuplib.c|h src/win/wgraph.c src/win/wmenu.c src/win/wtext.c term/win.trm docs/gnuplot.doc: Graph windows can be docked to the wgnuplot text window with `set term win docked`. Multiple graph windows can be docked at the same time and their layout can be changed with the new `layout ,` option. The fraction of the window which is reserved for text input can changed by moving a separator bar with the mouse and via wgnuplot.ini. This is useful in particular for Windows in "tablet mode" which only displays one maximised window at the time. Patch #711 2017-01-06 Ethan A Merritt * src/axis.c (gen_tics): Remove dead code for polar axis tics. * src/plot2d.c (theta_r_to_x_y): Consolodate polar->cartesian input coordinate conversion into calls to a new routine theta_r_to_x_y(). * src/graphics.c src/unset.c demo/ttics.dem docs/gnuplot.doc: Allow rotation of polar grid (theta) tic labels by "set ttics rotate". Extend the fixed range of theta axis so that the user can label from -180 -> 180 rather than 0 -> 360. 2017-01-04 Bastian Maerkisch * demo/stringvar.dem: Add platform specific code for Windows. * src/term.c (term_initialise): Disable output of binary data to the wgnuplot text window. * src/win/winmain.c (WinRaiseConsole): Raise pause message box instead of the text window during pause. 2017-01-03 Ethan A Merritt * demo/smooth_splines.dem demo/errorbars.dem demo/all.dem demo/html/*: Split mgr.dem into two parts, one illustrating the various spline smoothing options and the other showing various 2D plot styles with errorbars. * docs/gnuplot.doc: Clarify the meaning of the binary file keyword "transpose". Provide index entries for all binary file keywords. 2017-01-02 Jun Takimoto * term/aquaterm.trm (ENHAQUA_put_text): aquaterm was ignoring ignore_enhanced_text; i.e. you could not bypass enhanced text processing. 2017-01-01 Ethan A Merritt * src/internal.c (f_power): Use ISOC99 macro fpclassify(), if present, to detect floating underflow from evaluating X**Y. Return 0.0 rather than UNDEFINED. Bug #1877 * src/specfun.c (f_normal): Values of x < -38 cause floating underflow in the calculation of norm(x). Return 0.0 rather than UNDEFINED. See bug #1877 * src/save.c src/save.h src/show.c: Consolidate save/show axis format. Fix minor bug in "show auto" (2D reports 3D status and vice versa). 2017-01-01 Bastian Maerkisch * src/qtterminal/QtGnuplotWindow (print): QPrinterDialog requires a parent on Windows. Set a generic document name. Disable page range option in print dialog. 2016-12-31 Bastian Maerkisch * src/win/wgraph.c (drawgraph): Fix incorrect determination for drawing to a metafile which caused point symbols to be drawn as a bitmap. 2016-12-28 Ethan A Merritt * src/set.c: Do not allow the axis range on polar axis R to invert. Bug #1880 2016-12-26 Ethan A Merritt * src/axis.c src/axis.h src/tables.c src/tables.h: Define new axis THETA_AXIS to hold tic definitions for labeled angles on perimeter of polar grid. * src/graphics.c (ttick_callback) src/save.c src/set.c src/show.c src/unset.c: Support for "set ttics" "set mttics" and placement of labeled angles on perimeter of polar grid. * demo/ttics.dem docs/gnuplot.doc docs/plotstyles.gnu: Demo and documentation for "set ttics". 2016-12-25 Bastian Maerkisch * src/win/wmenu.c src/win/wgnuplot.mnu: Show text for toolbar icons as tooltips, which can be a bit more descriptive. 2016-12-24 Vicente Olivert Riera * configure.ac: Keep track of gdlib-config path found during configure. * Makefile.am: Remove vestigial reference to LISPDIR. 2016-12-24 Ethan A Merritt * src/save.c: Convert save tic/mtics routine to use axis pointers. 2016-12-23 Daniel J Sebald * src/qtterminal/QtGnuplotScene.cpp: Draw zoombox coordinates in front of everything else. 2016-12-21 Ethan A Merritt * src/show.c src/set.c: Repair a few places where axis_array[index].foo was not replaced with axis->foo. 2016-12-19 Ethan A Merritt * src/axis.c src/axis.h src/boundary.c src/graphics.c src/set.c src/unset.c: More tweaks of the raxis/polar grid code. Allow polar grid even in cartesian axis mode. 2016-12-18 Ethan A Merritt * src/axis.c (some_grid_selected gen_tics) src/unset.c set.c (set_grid) src/graphics.c (place_grid xtick2d_callback ytick2d_callback) src/save.c src/boundary.c: Cleaner separation of control over polar grid elements and rectangular grid components. Each can be set or cleared independent of the others, e.g. "set grid r" will give you circles about the origin even in a non-polar plot. Sanity checking of polar_grid_angle, the spacing between radial lines in a polar grid. Bug #1888 2016-12-16 Ethan A Merritt * src/axis.c (bad_axis_range): Don't include a test (max-min == 0) in the bad_axis_range() checks. One of the primary callers is axis_checked_extend_empty_range, which is perfectly happy to expand an initially empty range. * src/wxterminal/gp_cairo.c: Valgrind found some use-after-free problems with cairo object accounting. Replace g_object_unref() with g_clear_object() everywhere. This is a macro that decrements object reference count and clears the pointer when the count hits zero. Clear the pointer in-line for pango_attr_list_unref(). Bug #1886 2016-12-15 Ethan A Merritt * src/axis.c (bad_axis_range): Even more paranoid checks to protect against corrupted axis range state (Inf/-Inf) found by fuzzing. Introduce new routine bad_axis_range(). * src/plot2d.c: Fuzz-testing found a crash from trying to adjust the range of a boxplot containing no points. * src/pm3d.c: The combination 'set pm3d depthorder interpolate N,M' was not correctly tracking memory allocation. Bug #1884 2016-12-13 Ethan A Merritt * src/axis.c (axis_check_empty_nonlinear) src/axis.h src/plot3d.c: New routine analogous to the existing axis_checked_extend_empty_range except that it applies to nonlinear axes. This is a bug fix to prevent a crash after axis range corruption. Example of bug: set log; splot $FOO using 1:2:(NaN) * src/axis.c (axis_check_empty_nonlinear) src/axis.h src/plot3d.c: Additional sanity check on axis range after nonlinear transform. 2016-12-12 Ethan A Merritt * src/boundary.c: Fix incorrect vertical placement of multi-line x2 axis tick labels. The calculated y coordinate must describe the bottom line of the label, not the top line. Bug #1882 * src/axis.c (set_explicit_range) src/axis.h: New routine called from apply_zoom() to change the range of one axis directly instead of constructing and interpreting a "set [axis]range [newmin:newmax]" command string. This prevents loss of precision in the axis coordinates that can occur if there is an intermediate ascii representation for the range limits. Bugs #1881 #1882 * src/mouse.c (apply_zoom): Call new routine set_explicit_range() rather than constructing an executable "set range" command string. Bugs #1881 #1882 * src/mouse.c (rescale rescale_around_mouse): Zoom in response to mousing hotkeys +/- must take into account nonlinear axes. Nonlinear axes part 20 Bug #1883 2016-12-10 Bastian Maerkisch * src/util.c (strappend): Fix insufficient memory allocation. 2016-12-07 Ethan A Merritt * docs/gnuplot.doc docs/plotstyles.gnu: Update filledcurves to include an example of representing error on y as a shaded region of uncertainty. 2016-12-06 Ethan A Merritt * src/graph3d.c: Revert problematic patch 2016-11-29 affecting order of grid drawing. Work-around for the bug it fixed: 'set border behind' * src/show.c: Separate "show xyplane" from "show tics". * src/unset.c: "reset" should return border_layer to "front" 2016-12-05 Ethan A Merritt * term/gd.trm: Co-opt the existing "animate" keyword for use by the new sixelgd terminal. It sets the cursor position at the top left of the terminal before each plot so that successive plots overwrite the same screen area rather than scrolling off the top. This is convenient when generating an animation sequence, particularly if you save it to a file for later playback. * term/gd.trm: It is only by historical accident that the gd terminal only tracked integer font sizes. Make it a double so that fractional font sizes are possible. 2016-12-05 Bastian Maerkisch * term/sixel.c: Required minimal version of gdlib is 2.1.0 (gdImagePaletteToTrueColor, gdImageTrueColorToPaletteSetMethod). 2016-12-04 Bastian Maerkisch * term/gd.trm term/sixel.c term/Makefile.am.in: New terminal "sixelgd" based on kmiya@culti's sixel.c code available at http://nanno.dip.jp/softlib/man/rlogin/#REGWIND It produces sixel graphics like the "sixel" terminal, but uses gdlib to draw instead of the built-in bitmap code. It hence offers an enhanced feature set, including support for up to 256 colors, outline fonts, transparency, and anti-aliased lines. "set term sixelgd" uses only 16 colors for sixel output and up to 256 palette colors internally, but "set term sixelgd truecolor" maps the internal ARGB image back down into 256 sixel colors using dithering. sixelgd piggy backs on the png/gif/jpeg terminal routines and thus offers the same options. In "notruecolor" mode we no longer pre-allocate colors to avoid unnecessary transformations of the image in gdImageSixel. The "transparent" option works with mintty or mlterm on Windows, but does currently not work with xterm or mlterm on *nix. Patch #742 2016-12-02 Ethan A Merritt * term/gd.trm (PNG_set_font): Repair a read past end of string error found by valgrind. * src/plot3d.c: Initialize vector of data values so that incomplete data lines do not result in passing uninitialized values to STORE_WITH_LOG_AND_UPDATE_RANGE 2016-12-01 Ethan A Merritt * term/dumb.trm: The set_pixel routine originally used a priority rank such that pixels belonging to the border or axis linetypes would always be overwritten by pixels belonging to a plot. This system started to break when the border linetype LT_BLACK became the default linetype and broke further with the addition of a new priority level for fill areas. The core code is pretty good at issuing draw commands in the desired order, so at this point we get better results by dropping the priority rank and having all set_pixel operations overwrite previous contents. * src/graphics.c src/plot2d.c term/vgagl.trm: Clean up typos, comments, old FIXMEs, dead code 2016-11-29 Ethan A Merritt * src/graph3d.c (do_3dplot): Front/back layering of border+grid components was not always correct in hidden3d mode. For example: set pm3d; set hidden3d; splot x*y with points Bugfix * src/pm3d.h: Replace #defined constants PM3D_SCANS_xxx with an enum. 2016-11-27 Bastian Maerkisch * term/dumb.trm: Color support by ANSI escape sequences (16, 256, or RGB). In 16/256 color mode, RGB colors are mapped assuming a fixed palette, which likely is not the actual palette of the terminal. Support filled polygons. Relax priority condition for overwriting a "pixel" by allowing equal type. Patch #741 2016-11-26 Bastian Maerkisch * src/win/winmain.c (WinMain): Enable Windows 10 support for console virtual terminal sequences, i.e. escape sequences. Show "inline" color plots on the Windows command line with "set term caca driver utf8". * config/msvc/Makefile: Enable Unicode build. Include Manifest files. HTML help compiler is located in 32 bit program folder. Support building 32 and 64 bit variants. 2016-11-19 Bastian Maerkisch * src/pm3d.c (pm3d_depth_queue_flush) src/term_api.h src/win/wgdiplus.cpp: Add layer calls for pm3d queue flush. * src/win/wgraph.c src/win/wgdiplus.cpp|h src/win/wgnuplib.h: Until version 4.4 the windows terminal used only the Windows GDI to draw. Since 4.6 it can additionally use a mixture of GDI and GDI+ - mainly to enable antialiasing. Version 5.0 added a new variant in a separate code path which now only uses GDI+ (5.1). Not only is this faster than the mixed GDI/GDI+ code, it also offers improved support for transparency (5.0), custom dash patterns (5.0), oversampling (5.1), and antialiasing of polygons with less (5.0) or no artefacts (5.1). Version 5.0 still uses GDI for enhanced text and images, but that changed in 5.1 already and could be backported to 5.0. The GDI+ variant is the default since version 5.0 for drawing to the screen and is now also used for printing, copying to clipboard and saving of EMF data. The transition to GDI+ is now complete and this change removes the transitional GDI/GDI+ code. 2016-11-18 Bastian Maerkisch * src/win/wgraph.c (CopyClip) src/win/wgdiplus.cpp (clipboard_gdiplus): Use GDI+ to copy EMF+ data to clipboard if the user selected the GDI+ backend. * src/win/wgraph.c src/win/wgdiplus.cpp|h (InitFont_gdiplus): Determine initial font metrics etc. using the correct API (GDI/GDI+) instead of always using GDI. Take actual canvas size into account. Bug fix. * src/set.c (set_encoding, init_special_chars) setshow.h src/misc.c (init_encoding): Move initialisation of special characters to a separate function, which is also called during program init on Windows. Bug fix. 2016-11-17 Ethan A Merritt * term/pdf.trm configure.ac src/term.h: Mark the pdf terminal as DEPRECATED. The deprecation notice will first appear in version 5.0.6. This patch removes the configuration option. The terminal source itself is still there so it remains possible to manually uncomment the commented-out #include statement in term.h. GmbH dropped support in 2007 for the free (as in beer) but license- restricted version of PDFlib. The gnuplot pdf driver has not been touched since 2010 other than to accommodate new default terminal settings for version 5. PDF output remains possible using the pdfcairo terminal, any latex terminal + pdflatex, and the export menu provided by the wxt and qt interactive terminals. * docs/gnuplot.doc docs/plotstyles.gnu docs/titlepag.tex: Repair broken hyperlink in docs. Use color in the histogram plot styles figures. Add Daniel Sebald to list of contributers. 2016-11-16 Ethan A Merritt * src/gadgets.h src/graph3d.c src/set.c: Use the shared routine write_label() to handle 3D axis labels. This allows explicit rotation of xlabel and zlabel (ylabel rotation is suppressed so that the 2D default "ylabel rotate" does not affect 3D plots). The revised zlabel code avoids printing the label twice (Bug #1277). 2016-11-15 Ethan A Merritt * docs/plotstyles.gnu docs/gnuplot.doc demo/html/* demo/fenceplot.dem: Add zerror+fenceplot demo to the documentation and the online demo set. 2016-11-15 Bastian Maerkisch * src/win/wgraph.c (SaveAsEMF): Option to save graph in EMF+ format. * src/wxterminal/wxt_term.h src/win/wxt_gui.cpp src/win/winmain.c: screendump command supports wxt terminal. * src/win/wgraph.c (WndGraphProc): Remove dead code in mouse handling: Single and double clicks are handled by the code in mouse.c and the window is not even configured to receive double click events. Also make sure that mouse wheel "button"s are released again. 2016-11-14 Ethan A Merritt * src/axis.c src/axis.h src/boundary.c src/color.c src/graph3d.c src/graphics.c src/save.c src/set.c src/show.c: Add a new field to the axis structure that stores tic label horizontal justification. Previous code was using axis->label->pos to store this, but that confounds justification of the tic labels and the axis label proper. * src/boundary: Revise calculation of space needed for x2 axis ticmarks. * src/save.c: saved timestamp command must use compatible syntax 2016-11-12 Ethan A Merritt * src/graph3d.c: Check terminal supports filled_polygon before trying to carry out "with zerrorfill" 2016-11-10 Ethan A Merritt * src/color.c (ifilled_quadrangle): If pm3d border linetype is LT_DEFAULT, draw quadrangle borders in current color. Unfortunately this is still a magic number (lt -6) in the user interface. * src/qtterminal/QtGnuplotScene.{cpp,h}: Track current fillstyle so that qt terminal can distinguish between opaque and transparent pattern fill. 2016-11-08 Ethan A Merritt * src/boundary.c src/gadgets.c src/gadgets.h src/graph3d.c src/set.c src/unset.c src/show.c: Use the shared routine write_label() to handle "set timestamp" in both 2D and 3D. Place the timestamp relative to page borders rather than the plot borders. Timestamp offsets no longer affect placement of plot borders. A timestamp is still generated for each subplot in a multiplot but now they all end up in the same place rather than overlapping bits of the multiplot. This could be improved. 2016-11-07 Hans-Bernhard Broeker * src/win/wgraph.c (CopyPrint): Fix braces broken by #ifdef. 2016-11-05 Ethan A Merritt * src/gp_types.h src/graph3d.c src/graph3d.h src/plot3d.c src/pm3d.c src/pm3d.h src/tables.c demo/all.dem demo/zerror.dem docs/gnuplot.doc: New 3D plot style splot using :::: with zerrorfill {fillcolor } This produces a plot similar to the 2D filledcurves option to fill the area between two curves. The primary linecolor is used to draw a line through the z values. The fillcolor (defaults to the linecolor if not given) is used to fill the area between zlow and zhigh. Depth sorting is possible using `set pm3d depthorder`. 2016-11-05 Bastian Maerkisch * src/win/wgdiplus.cpp|h (drawgraph_gdiplus): Add wrapper functions instead of trying to determine the target (screen/printer/metafile) from the device context using GDI functions. * src/win/wgraph.c (CopyPrint): Also use GDI+ to print if the user selected the GDI+ backend. * src/win/wgdiplus.cpp src/win/wgraph.c (draw_enhanced_init): Take DPI into account when calculating the scaling factor for super- and subscripts. Makes special code for printing superfluous. * src/win/wgdiplus.cpp: Default GDI+ dash patterns use a very narrow spacing which does not scale with the line width. We now use our own custom dash patterns which resemble the GDI default patterns for unit line width. This in particular improves the appearance of grid lines in polar plots. * src/set.c (encoding_micro): Fix micro sign for CP1252 and add a few more encodings, including CP437 and CP850. 2016-11-03 Ethan A Merritt * src/gadgets.c src/gadgets.h src/graph3d.c src/save.c src/set.c src/show.c src/tables.c src/tables.h docs/gnuplot.doc: "set key" already offers 3 choices for placement of 3D plots: 1) "at" user-specified position 2) "outside" - shrinks the entire plot so that the key can be drawn in one of the margins 3) "inside" - (the default) rotates and scales with the plot itself as the view changes. This patch introduces a 4th option 4) "fixed" is like "inside" except that it is not affected by changing the current view angles or scaling. "fixed" key placement does not move when the plot rotates. For 2D plots this is identical to "inside". The new option is now the default. 2016-11-03 Craig DeForest * src/datafile.c (plot_option_binary): Interpretation of dimensions given via "binary record=(a,b)" contridicted that for dimensions given via "binary array=(a,b)". This caused mangling of image data read in using the "record" keyword. Change the interpretation to match that of "array". Bug #1873 2016-10-27 Ethan A Merritt * src/save.c src/show.c src/gadgets.c: save/show style arrow was showing incorrect settings for head/heads/backhead, and reporting LT_DEFAULT as an actual line type. * src/misc.c (arrow_use_properties): If an arrowstyle has no explicit linetype or color, apply the current plot linecolor. This prevents 3D vector plots with a default linetype from being colored as if they were "lc palette z". Bug #1869 2016-10-27 Ethan A Merritt * src/plot2d.c src/plot3d.c: Recent reorganization of next_iteration() code makes it unnecessary to separately track highest iteration in each plot clause. 2016-10-26 Thomas Sefzick * src/plot2d.c: Never decrease value of highest_iteration. Avoids missed plots when a plot command contains more than one iteration and the last iteration is shorter than the others. Bug #1871 2016-10-23 Ethan A Merritt * src/set.c (set_style): Allow "set style textbox border" without a specific border color to default to black. * term/svg.trm: Transition to SVG 2.0 Remove DTD. Remove option "fontfile" and references to SVG fonts. * src/axis.h src/axis.c src/show.c: Macros AXIS_IS_FIRST AXIS_IS_SECOND are used only once. Remove them. * src/internal.c: Clarify error message printed when an undefined variable is found in a string expression. Bug #1783 2016-10-18 Ethan A Merritt * src/parse.h src/parse.c: Simplify the code that supports iteration. Part 4: Iteration list no longer needs to be double-linked. 2016-10-17 Ethan A Merritt * src/parse.h src/parse.c: Simplify the code that supports iteration. Part 1: Do not try to pre-calculate and flag empty iterations. * src/parse.c: Simplify the code that supports iteration. Part 2: Do not pre-calculate whether an iteration is "just once". * src/parse.h src/parse.c: Simplify the code that supports iteration. Part 3: Re-write next_iteration() to use recursion. * src/parse.h src/parse.c demo/iterate.dem: Dynamic reevaluation of iteration limits. Allows inner loop to reference variable from outer loop: E.g. for [i=1:N] for [j=i:i+1] f(i,j) Bug #1817 2016-10-15 Bastian Maerkisch * src/command.c (timed_pause) src/stdfn.h (GP_SLEEP): Enforce usage of win_sleep() even if usleep() is available. Bug #1867 2016-10-13 Ethan A Merritt * src/wxterminal/wxt_gui.cpp: Screen refresh must hold mutex lock, failure is triggered by resizing active plot window by dragging mouse. Bug #1845. 2016-10-10 Ethan A Merritt * src/eval.c src/save.c src/set.c src/show.c src/tables.c src/tables.h src/unset.c src/util.c src/util.h demo/special_chars.dem: New command "set micro" tells gnuplot to use an encoding-specific character sequence rather than "u" for the micro sign (unicode U+00B5) used as a prefix in scientific notation. This affects the "%c" format used by gprintf() to label axis ticks. 2016-10-08 Bastian Maerkisch * src/win/wgraph.c src/win/wmenu.c src/win/wtext.c: Argument of the function ShowWindow is not a boolean. * src/win/wgdiplus.cpp: Enable antialiasing for polygons without seams: Draw a run of filled polygons to a bitmap four times as large as the canvas and scale down with interpolation. * src/color.c src/term_api.h: Add layer calls for color box. * src/win/wgdiplus.cpp (W_image): Draw images with GDI+ using nearest neighbour interpolation. * src/wxterminal/wxt_gui.cpp|h (wxt_cairo_create_platform_context): Let cairo manage the Windows GDI bitmap internally. Requires cairo 1.4. * src/wxterminal/wxt_gui.cpp (OnPrint): Use wxDC::GetHDC() instead of GetHandle() since that is also available in wxWidgets 2.8. * src/win/wgraph.c (drawgraph): Missed to recreate the brush in case of fractional solid fill was requested. Bugfix. 2016-10-06 Shigeharu Takeno * docs/gnuplot.doc: Fill in missing function definitions for "help" output. 2016-10-05 Ethan A Merritt * docs/gnuplot.doc docs/plotstyles.gnu src/save.c: Refer to the plot style as "boxxyerror" rather than "boxxyerrorbars" to reduce confusion arising from the style not drawing bars of any sort. 2016-10-04 Hans-Bernhard Broeker * src/win/wprinter.c: Has to include syscfg.h if definition of WINVER in there is to make any difference. * src/win/wpause.c: Dito. 2016-10-03 Allin Cottrell * src/win/wprinter.c: Cross-compilation requires lower case include file names. 2016-10-03 Bastian Maerkisch * src/win/wgdiplus.cpp src/win/wgraph.c: Implement oversampling for the GDI+ windows terminal, i.e. draw diagonal lines at fractional pixel positions to avoid "wobbling" effects. Vertical or horizontal lines and point symbols are still snapped to the nearest pixel to avoid blurry lines. Replaces the old "oversampling" method which drew on a bitmap four times as large and then scaled down. * term/win.trm: Update documentation of graph-menu and wgnuplot.ini. 2016-10-01 Ethan A Merritt * src/term.c (enhanced_recursion): The enhanced text code was eating any whitespace that followed an opening '{'. While this may not be noticeable in most cases, it breaks using the &{space} syntax to create or reproduce blank space in an enhanced text string. Possibly the idea was to allow "{ /FontName text-in-new-font }" but the documentation has specifically disallowed this for many years. Remove the offending loop that eats whitespace. Bug #1863 * src/boundary.c: Revised placement of x2label. 2016-10-01 Daniel J Sebald * QtGnuplotItems.{h|cpp} (QtGnuplotEnhancedFragment::width): Introduce a true string width function rather than using boundingBox(), which ignores leading or trailing whitespace. This repairs enhanced text overprint and place-holder markup in the qt terminal. Bug #1863 2016-09-28 Bastian Maerkisch * src/mousecmn.h src/qtterminal/qt_term.cpp src/qtterminal/QtGnuplotEvent.h src/qtterminal/QtGnuplotWindow.cpp|h: Enable space-raises-console and terminal option "raise" for qt on Windows. Since gnuplot and the qt terminal are realized as two different processes, the currently active process has to allow the other to "raise" itself. * src/win/winmain.c: Change only the state of minimised windows when raising text or graph windows. In particular that does leave maximised windows as they are. 2016-09-27 Ethan A Merritt * src/boundary.c: Use the shared routine write_label() to handle the 2D x, y, x2, and y2 axis labels rather than separate in-line code for each. This allows additional text properties for the axis labels, notably "boxed". However this changes the effect of setting an offset for y, y2 axis labels. Previously this altered placement of the plot borders while leaving the absolute placement of the axis label on the page unchanged. Now the plot borders remain fixed but the axis label moves. Bug #1550 * term/svg.trm: Revert 2016-09-23 "in line images do not require png support". Actually, they do. * src/plot2d.c (eval_plots): Initialize fillcolor. * src/color.c: Use the shared routine write_label() to handle the 2D cb axis label. * src/stats.c: Do not use columnheader as a prefix for "stats" unless it is specifically requested. 2016-09-25 Ethan A Merritt * src/pm3d.c (set_plot_with_palette): When checking for plot elements that refer to palette coloring, go through the list of objects also. 2016-09-24 Ethan A Merritt * term/post.trm: postscript terminal support for rotation of boxed text. This happens to also remove incompatibility of "set minussign" and "set term post noadobeglyphnames" and utf8 encoding. 2016-09-24 Akira Kakuto * src/wxterminal/wxt_gui.cpp (OnExport): VS2010 does not accept splitting the string argument for wxT(). 2016-09-24 Bastian Maerkisch * src/win/wgraph.c (MakeFonts): Calculation of hchar and vtic lost precision. Bugfix. 2016-09-23 Bastian Maerkisch * src/win/wgdiplus.cpp (EnhancedPutText): Fix reference of rotation for enhanced text. * src/win/wgraph.c src/win/wgdiplus.cpp: Positioning of rotated text depends on the currently selected font and in particular on the font size. Bugfix. * src/win/wgdiplus.cpp: Take fontscale into account. Bugfix. 2016-09-23 Ethan A Merritt * term/svg.trm (SVG_image): Image support was conditional on png support but this can be relaxed for in-line images. * src/gadgets.c (write_label): If current textbox style has neither a border nor fill, then the "boxed" attribute can be ignored. * src/plot2d.c (cp_alloc): Initialize filledcurve_options to those from "set style data". 2016-09-22 Per Bothner * term/svg.trm (SVG_image): In domterm mode an embedded image should always be inline rather than linking to an external file. 2016-09-22 Bastian Maerkisch * src/wxterminal/wxt_gui.cpp|h: Add "print" toolbar button. For now, it is only available on Windows, but support could in principle be added for other platforms. See feature request #304. * src/wxterminal/wxt_gui.cpp: Eliminate warnings about unused variables. Used define _WIN32 to test for Windows platform. * src/wxterminal/wxt_gui.cpp (wxtFrame::OnExport): Save as enhanced metafile (emf). Only available on Windows. 2016-09-21 Ethan A Merritt * src/qtterminal/QtGnuplotScene.h src/qtterminal/QtGnuplotScene.cpp: qt terminal support for rotation of boxed text. * src/wxterminal/gp_cairo.c: cairo/wxt terminal support for rotation of boxed text. 2016-09-18 Ethan A Merritt * src/internal.c src/eval.h src/eval.c src/internal.h src/parse.c docs/gnuplot.doc: New cardinality operator |A| reports number of entries in array A. Example: plot for [i = 1 : |A|] f(A[i]) 2016-09-16 Ethan A Merritt * src/getcolor.c src/save.c src/show.c: Remove unreachable case statements in color mode switch. The fprintf warning they contained would have accessed uninitialized memory (found by canalyze static code analysis tool). * src/graph3d.c: Remove out-of-date comments. * src/graph3d.c (ztick_callback): orientation of z-axis tick marks changes with azimuth. "set zlabel rotate parallel" also. 2016-09-15 Ethan A Merritt * src/set.c docs/gnuplot.doc: Ignore "set termopt {dashed|solid}". Remove use of this option from examples in the manual. 2016-09-14 Ethan A Merritt * src/multiplot.c: Allow "boxed" attribute in the title for a multiplot layout. Example: set multiplot layout 2,2 title "Example" boxed 2016-09-14 Bastian Maerkisch * src/win/wgraph.c (drawgraph): Fix a GDI resource leak which is only important when opening and closing a massive number of different graph windows. 2016-09-13 Ethan A Merritt * src/boundary.c src/graph3d.c src/set.c src/unset.c: Write plot titles using the general routine write_label() rather than in-line code. This allows use of additional text properties, in particular "boxed". * src/graph3d.c (setup_3d_box_corners): 2016-09-06 revision to which plot edges have tic labels attached should not have been applied to "set view map" mode. 2016-09-12 Bastian Maerkisch * src/mouse.c: Change mouse pointer to indicate rotation during azimuth change via mouse. Add a help text for dragging with mouse button 3. * src/mouse.c: Revert mouse pointer to normal when enabling/disabling mouse mode. * src/win/wgraph.c (GraphInit): Do not set an (automatic) window class mouse pointer. As we set the pointer ourselves as required, that caused flickering of the mouse pointer. * src/win/wtext.c: Change mouse pointer while marking text. * src/term/cairo.trm (cairotrm_init): Redirection of output to a printer on Windows requires the use of gpoutfile. Let pdfcairo on Windows always use the cairostream_write callback to enable printing of PDF files. * src/win/winmain.c (open_printer): Open temporary file in binary mode as required e.g. for PDF data. * src/win/wgnuplib.rc src/win/wgraph.c (CopyPrint) src/win/wprinter.c (DumpPrinter): Remove unused lower part of the "general" print property sheet by supplying an (empty) dialog template. Add a note that printer settings will be ignored since the PRN file mechanism sends terminal output to the printer unaltered. 2016-09-11 Bastian Maerkisch * src/win/wprinter.c: Previous change failed to apply default size when not the corresponding property sheet was not shown. * src/win/winmain.c (close_printer): The code relied on a windows terminal graph window being opened, but should not. Always supply a valid window handle to DumpPrinter(). Include the current terminal name in the print job title. * src/win/wprinter (DumpPrinter): The Escape() PASSTHROUGH function was included in Windows 3(!) for backward compatibility with earlier versions and is no longer supported by some printer drivers. Make use of the appropriate printer spooler API instead. For constistency, use a print property sheet instead of a print-setup dialog here too. 2016-09-10 Ethan A Merritt * src/graph3d.c src/graph3d.h src/mouse.c src/save.c src/set.c src/show.c src/unset.c src/eval.c docs/gnuplot.doc demo/azimuth.dem: New command "set view azimuth " Changing the view angles rot_x and rot_z cannot move the z axis out of the plane normal to the canvas horizontal. This patch adds a new angular setting "azimuth" that rotates the plane containing the z axis about the line of sight. I.e. "set view azimuth 90" places the z axis parallel to the canvas horizontal rather than the canvas vertical. Click-and-drag with right mouse button provides interactive control of the azimuth. Azimuth is ignored by 2D plots and by "set view map". 2016-09-09 Shigeharu Takeno * docs/term-ja.diff docs/gnuplot-ja.doc: Sync Japanese documentation to doc version 1.1017 2016-09-08 Tatsuro MATSUOKA * src/win/wgnuplot.exe.manifest src/win/wgnuplot.exe.manifest64: Add compatibility flags vor Windows 7, 8, 8.1, and 10 to enable proper detection of the Windows version. Bug #1851 2016-09-08 Bastian Maerkisch * src/win/wgraph.c src/win/winmain.c src/win/wprinter.c src/win/wcommon.h src/win/wgnuplib.h src/win/wgnuplib.rc: Replace the deprecated old-style print-setup dialog (which was shown when the user requests the windows terminal to print) by a print property sheet. Integrate the previously separate dialog to request the print size. This sadly requires quite a bit of code to implement a COM callback object. Also we now properly clean-up printing resources. * src/eval.c: Windows 10 also deprecated the VerifyVersionInfo API which is used by the external findversion.h, as well as GetVersionEx. Since the above patch fixes GetVersionEx's behaviour on all current Windows versions, there's no need to rely on findversion.h any more. See Feature Request 422 * config/mingw/Makefile: Resource target depends on manifest files. 2016-09-07 Ethan A Merritt * term/pslatex.trm: For pslatex, epslatex, cairolatex "standalone" option, if the current encoding is utf8 then put a line in the output /usepackage[utf8x]{inputenc} Note that [utf8x] (not [utf8]) is needed to correctly process the degree sign and micro characters. 2016-09-07 Bastian Maerkisch * src/win/wgraph.c src/win/wtext.c: Ensure proper initalisation of the font chooser dialog also on non-english systems by using the LOGFONT fields to request bold or italic fonts instead of using strings. Request scalable fonts only, to ensure fonts can be scaled or rotated, or offer (some) Unicode characters. 2016-09-06 Daniel J Sebald * src/graph3d.c (setup_3d_box_corners): Add quandrant processing for surface_rot_x similar to that for surface_rot_z. This fixes inconsistent splot borders drawn when the base is upside down. Bug #1810 2016-09-06 Ethan A Merritt * src/stats.c: In the case of 'stats foo prefix columnhead' check that the string found in the column header is a legal identifier (i.e. rule out numbers and punctuation). 2016-09-05 Ethan A Merritt * src/tabulate.c( imploded ): The smoothing routine cp_implode() creates a new set of plots separated by dummy UNDEFINED points. However data files use a blank line to separate curves. Thus "set table foo; plot ... smooth freq" creates a file foo that is not in standard format, creating problems if it is read back in to plot later. This patch replaces each UNDEFINED point with a blank line when smoothed data is tabulated. Bug #1274 2016-09-03 Ethan A Merritt * src/datafile.c term/svg.trm: Remove dead code and comments. * src/stats.c: Track and report number of lines treated as column headers rather than as data. * src/show.c: Show state of 'autotitle columnheaders' even if the key is currently unset. * docs/gnuplot.doc: Update sections referring to columnheaders. Note that the effect of `set key autotitle columnhead` extends to stats and fit commands, and applies even if the key is unset. * src/datafile.c (df_open): Guarantee that first line of data is skipped if 'set key autotitle columnhead' is in effect regardless of whether the column headers are used. Bug #1751 2016-09-02 Ethan A Merritt * src/datafile.c (df_generate_pseudodata): Grid coordinates generated by splot '++' are subject to round-off error. This error is most noticeable at the plot boundary, where it may be that (sample_min + nsteps * stepsize != sample_max). This is more likely to be visible on 32-bit systems than on 64-bit systems. Force the final grid coordinate to be exactly sample_max. Bug #1850 2016-09-01 Ethan A Merritt * term/pslatex.trm: The begin/end of plot bookkeeping of internal state that would otherwise be done by PS_layer() needs to be done instead by the replacement routine PSLATEX_layer(). In particular the final line a plot needs to be stroked and the linetype reset. Bug #1852 2016-08-28 Ethan A Merritt * demo/smooth.dem docs/gnuplot.doc: Update docs for "smooth" option. Fix regression in demo caused by failure to promote N = points per bin to a real number. 2016-08-26 Per Bothner * term/svg.trm src/term.c (init_terminal): New terminal "domterm" wraps svg output in escape sequences compatible with in-line display in terminal emulators based on DomTerm (http://domterm.org). Conceptually similar to the tektronix, sixel, selanar etc graphic modes that interleaved with text output in old-school character cell terminals or emulators like xterm. 2016-08-25 Ethan A Merritt * src/color.c src/set.c src/gadgets.c src/gadgets.h src/tables.c src/tables.h src/save.c src/show.c docs/gnuplot.doc: New keyword "set colorbox {{no}invert" flips the top/bottom orientation of a vertical gradient; i.e. the same color maps to the same numerical value but the orientation of the sample is inverted. Display of horizontal gradients is not affected. Tracker issue #1808 * src/wxterminal/wxt_gui.cpp (wxtFrame::OnExport): Revisit the file export widget. I misread the code previously, thinking there was only a single global command list. Actually there is a global pointer but each window has its own command list. So we really can export inactive plots as well as the active plot. The global command list pointer is now unused so get rid of it. Bug #1843 2016-08-24 Ethan A Merritt * src/plot2d.c (refresh_bounds box_range_fiddling): Improved autoscaling of plots "with boxes". Extend y range to 0. Distinguish between absolute and relative boxwidth. Bug #1827 * src/plot2d.c (eval_plots): "smooth {freq|fnorm|cum|cnorm}" operations replace the original data, which invalidates autoscaling during input. Now we save/restore autoscale state during input so that autoscaling of the smoothed data starts from a clean slate. Bug #1826 2016-08-22 Ethan A Merritt * src/gadgets.h (arrow_end_undefined) src/set.c src/graphics.c: Initialize arrow structure to have type arrow_end_undefined. If we see an arrow with that type later, it indicates corruption due to an error exit from "set arrow". * src/eval.c (evaluate_at): Make unsupported array operations fatal (int_error) rather than informational (int_warn). The int_warn version eventually returned UNDEFINED or NaN to the caller, and not all callers were prepared to deal with that. E.g. array A[1]; set xrange [0:A]; set param; splot u,u,u ---> boom! * src/tabulate.c (output_number): Oops. Forgot to check for log being implemented via nonlinear axes. This should have been part of the nonlinear axis patch set. 2016-08-21 Ethan A Merritt * src/wxterminal/wxt_gui.cpp (wxtFrame::OnExport): The Export widget on a plot window should dump a copy of the plot in that window, not a copy of the currently active plot. Modify the OnExport function accordingly. Unfortunately to generate PDF or SVG files we want to reexecute the list of commands that generated the plot, but we only keep such a list for the currently active plot. So Export from inactive windows is limited to the clipboard or PNG files. Bug #1843 * src/readline.c (getc_wrapper): Clear errno before reading next character. This fix contributed anonymously. Bug #1846 #1865 2016-08-19 Ethan A Merritt * src/util.c (squash_spaces) src/util.h src/command.c: Modify squash_spaces() utility routine to optionally leave a single space in place of whitespace or remove whitespace altogether. * src/datafile.h src/datafile.c src/stats.c docs/gnuplot.doc: Rearrange the order in which we parse the "stats" command. This allows passing "columnheader" or "columnheader(N)" to the "name" option rather than a fixed character string. Bug #1841 * src/axis.c (eval_link_function) src/save.c (save_nonlinear): If there is an expression-parsing error while processing a "set nonlinear" command, the forward/reverse axis mapping can be left in a corrupted state. Add a sanity check for this to prevent bad things from happening when the axis mapping function is invoked. * src/axis.c (gstrdms): Sanity check user-provided format. Reject format characters that are not handled explicitly. * src/stats.c (statsrequest): Early exit if there are no usable points. * src/fit.c (update): Fix error in error reporting (null filename). 2016-08-18 Ethan A Merritt * src/fit.c: Clear SAMPLE_AXIS before using it as scratch space. * src/eval.c src/eval.h (free_at): afl-fuzz found multiple crashes caused by trying to evaluate a defunct action table. This patch wraps free_at() in a macro that clears the pointer to an action table after freeing it. 2016-08-17 Dima Kogan * src/gp_types.h src/interpol.c src/plot2d.c src/tables.c docs/gnuplot.doc: New option "smooth fnormal" plots normalized frequency, analogous to plot foo using 1:(1./total) smooth freq" 2016-08-17 Daniel J Sebald * term/lua.trm: Warn on error from fflush() or ftruncate(). Bug #1840 2016-08-17 AMD * term/post.trm: Different treatment of simplex/duplex option depending on whether the PostScript support is limited to Level 1. 2016-08-16 Ethan A Merritt * src/misc.c (lp_parse) src/plot2d.c (eval_plots): Remove order dependence of the "fillcolor" keyword and confusion with line style. For example these commands were not working: plot 'silver.dat' with boxes fs solid 1.0 border -1 fc "cyan" plot 'silver.dat' with boxes fc "cyan" fs solid 1.0 border -1 lw 2 * src/graphics.c (plot_filledcurves) src/plot2d.c (cp_extend) src/plot2d.c docs/gnuplot.doc: This is a CHANGE in filledcurves behaviour with repect to fillstyle. The fillstyle "border" attribute is now ignored except for filledcurves option "closed", the default. In order to make sure the border is drawn all the way around, duplicate the first point at the end. 2016-08-12 Ethan A Merritt * src/plot3d.c (eval_3dplots) src/plot2d.c (eval_plots): Check for legal log-scaled axis ranges before trying to plot. * src/axis.c (axis_log_value_checked): Rewrite test for positive values so that it catches NaN as well as negative numbers. * src/command.c (link_command): More robust handling of error during 'set link' or 'set nonlinear' commands. Do not fill in the axis->linked_to_* fields until after the points of potential failure. * src/eval.c src/eval.h (free_at): afl-fuzz found multiple crashes caused by trying to evaluate a defunct action table. This patch wraps free_at() in a macro that clears the pointer to an action table after freeing it. 2016-08-11 Ethan A Merritt * src/plot2d.c (box_range_fiddling): afl-fuzz found a crash caused by an incorrect test for no data points. * src/command.c (link_command): If the "set nonlinear" failed to complete it could leave an axis marked as nonlinear but with no mapping functions defined. Now we reset the links on failure. * src/set.c (encoding_minus): Comment out replacement of the SJIS minus sign character. The character itself is correct but it is a full-width rather glyph so it does not mix well with half-width digits in a number. This problem is specific to SJIS. 2016-08-11 Bastian Maerkisch * src/win/wgraph.c: Print the error code if opening the print dialog should fail. * config/config.nt (HAVE_ERF, HAVE_ERFC, HAVE_STDBOOL_H, isnan EAM_OBJECTS): Version dependent macros to re-enable compilation with at least VS2012 or newer. 2016-08-10 Bastian Maerkisch * src/win/wgraph.c (CopyPrint) src/win/wprinter.c (DumpPrinter) src/win/wresourc.h src/win/wgnuplib.rc src/win/wgnuplot.rc: Add a progress bar to print progress dialog. Bump minimum Windows version to XP here, too. * src/win/wgnuplib.rc: Change (nominal) font size of most dialogs to 8pt in order to match Windows default settings. * src/win/wresourc.h: Message code for saving as bitmap was in conflict with the message code for hiding graph #2. Bugfix. * src/win/wcommon.h src/win/wgraph.c src/win/wprinter.c: Store the memory handles itself to save the user's printer selection (instead of the pointer returned by GlobalAlloc) and use them in all printer dialogs. Bugfix. * src/win/wprinter.c (DumpPrinter, PrintDlgProc) src/win/wgraph.c (CopyPrint) src/win/wgnuplib.h (GP_PRINT): Changing the private data of some possibly unknown window is dangerous. Store the pointer to the printer data in the dialog's 'WindowLong's instead. * src/win/wprinter (DumpPrinter): The Escape() function always expects a byte encoded string, irrespective if UNICODE is defined or not. Explicit type casting may hide errors. Bugfix. 2016-08-09 Hans-Bernhard Broeker * config/msvc/Makefile (#QTDIR, TOP, MOC, UIC, RCC, S, W, WX, Q) (T, D, M, {$(S)}.c.obj, {$(S)}.c.cobj, $(HELPFILE), doc2html.exe) ($(M)bf_test.exe, demo_plugin.dll): Reduce slightly excessive use of double backslashes. (VERSION_CPPFLAGS): Define version numbering flags. (doc2html.exe): Pass version numbering flags. (COMMONLIBS): Add newly required lib shlwapi. * config/config.nt (HAVE_ERF, HAVE_ERFC, HAVE_STDBOOL_H, isnan): Configure macros for current version of MSVC (VS 2015). 2016-08-09 Bastian Maerkisch * src/win/wgdiplus.cpp: Fix two more memory leaks. * src/win/wcommon.h src/win/wgnuplib.h src/win/wgraph.c src/win/wgdiplus.cpp: GDI+ implementation of enhanced text. Until now the GDI+ backend still used the GDI code to draw enhanced text, which caused differences in layout if text was rendered as "normal" or enhanced text. We now re-use the previous GDI-only routines and introduce function pointers to call GDI or GDI+ code depending on if they are called from drawgraph() or drawgraph_gdiplus(). * src/win/wmenu.c: Loading of icon images requires GDI+. Add an error message if support for it is not compiled in. Fix the case when GNUPLOT_SHARE_DIR is not defined. * term/svg.trm: The change on 2016-08-05 did not handle the case of GNUPLOT_JS_DIR being undefined. * src/win/wtext.c: getc might be a macro and thus needs to be undefine'd before redefinition. * src/win/wgdiplus.cpp: Include iostream.h before syscfg.h in order to avoid MSVC choking on the re-definition of stdio routines by wtext.h/winmain.c. Do not use namespace std since this causes MSVC to throw an error because of the (re-)definition of bool in syscfg.h. * src/win/wmenu.c: Move variable declaration to beginning of code block. Required e.g. by MSVC 2012. * src/win/wgraph.c src/win/wgdiplus.cpp (W_hypertext): Use the encoding which was active while plotting, not the current one, to display hypertext. 2016-08-09 Hans-Bernhard Broeker * config/mingw/Makefile: Enforce calling the lua executable instead of the lua wrapper script of Mingw64. Better fix for the build failure of gnuplot-tikz.help. 2016-08-08 Bastian Maerkisch * config/mingw/Makefile: Avoid warning messages when using clang. Qt 5.x assumes C++11. Omit C++ flags when building gp_cairo.c. Japanese help file was missing a graph from the demos. Execute lua via the cmd.exe shell in order to avoid errors when redirecting its output. Remove obsolete flag CONSOLE_SWITCH_CP. Do not enable caca terminal by default. 2016-08-07 Ethan A Merritt * src/save.c src/set.c src/show.c src/tables.c src/tables.h src/unset.c src/util.c src/util.h docs/gnuplot.doc term/js/canvasmath.js: New command "set minussign" tells gprintf() to use an encoding-specific minus sign character for numeric output rather than the ascii hyphen character produced by sprintf(). UTF-8: Unicode U+2212 "minus sign" CP1252: ALT+150 "en dash" SJIS: 0x817c default: ascii \055 "hyphen" The substitution of minus sign for hyphen is not made during tabular output ("set table") or when the current terminal is a LaTeX terminal. It affects only numbers formatted by gprint(). Other hyphens are not affected even if they are in a gprintf format string. * src/boundary.c (do_key_layout): Tweak vertical spacing of key titles to make the result more like previous versions (in particular the canvas terminal). See patch of 2016-07-14 2016-08-06 Tatsuro MATSUOKA * src/wxterminal/wxt_gui.h: Correct spelling of include file name. Bug #1836 2016-08-06 Bastian Maerkisch * src/command.c src/plot.c src/syscfg.h src/win/winmain.c|h src/win/wtext.c|h: Enable support for encodings (including UTF-8) for console mode gnuplot on Windows. Patch #734 * src/win/wmenu.c src/win/wgdiplus.c|h src/win/wgnuplot.mnu: Images of toolbar icons can be read from a file. 2016-08-05 Ethan A Merritt * src/plot2d.c src/set.c src/mouse.c: When logscaling is implemented via nonlinear axes, any test for "if (R_AXIS.log)" must come _after_ a test for "if nonlinear(&R_AXIS)". Only affects logscaled polar axis. Nonlinear axes part 19 2016-08-05 Bastian Maerkisch * term/canvas.trm term/lua.trm term/svg.trm term/post.trm src/plot.c src/win/winmain.c|h: The code to determine paths relative to the gnuplot executable on Windows spread by copy and paste. Let all those sites call a single new function instead and fix an improper handling of wide strings which was overlooked due to an explicit type cast. Fix memory leaks while at it. Bug #1837 2016-08-04 Ethan A Merritt * term/svg.trm: Better vertical justification of rotated text. * src/qtterminal/QtGnuplotScene.cpp src/qtterminal/QtGnuplotItems.cpp: *.pcf (bitmap) fonts are non-rotatable. Furthermore Qt can die horribly while trying (seen with Qt 5.4.2). To make matters worse, requesting font "Times" may give you the Adobe pcf font Times (perfect name match) rather than a rotatable ttf or odf font like TimesNewRoman. This patch adds style strategy QFont::ForceOutline to forbid selection of a bitmap font. 2016-08-03 Ethan A Merritt * src/set.c src/gadgets.h src/plot2d.c demo/rotate_labels.dem docs/gnuplot.doc demo/all.dem: New option `rotate variable` to assign a separate rotation angle for each point in a 2D plot using the contents of the 4th entry in the `using` specifier. plot foo using 1:2:3:4 with labels rotate variable * src/datafile.c: Matrix dimensions were not being adjusted to account for subsampling by "every" in the using specifier, so "with image" plots came out mangled. This was a regression from 4.6.6 Bug #1835 * demo/matrix_every.dem demo/all.dem: Add demo that serves as a unit test for the above regression and fix. 2016-08-02 Ethan A Merritt * src/axis.h src/plot2d.c: Stricter definition of nonlinear(axis) allows to distinguish nonlinear axes from linked (linear) axes. * src/axis.h demo/nonlinear2.dem: Rework tic and particularly minitic generation for nonlinear axes, including special case code for logscale axes. The default minitics for log-scale axes in this mode are now always equivalent to "set mtics base" (i.e. unit intervals 1-9 for log10). Nonlinear axes part 17 2016-08-01 Ethan A Merritt * src/unset.c: "unset y2mtics" was clearing the setting for x, not y2. * src/axis.h src/command.c src/unset.c: Internal flag ticdef->logscaling was not being cleared by "unset log" or "set nonlinear". Nonlinear axes part 16 2016-07-31 Bastian Maerkisch * src/wxterminal/wxt_gui.cpp: Handle errors when creating a cairo surface. Bug #1621 2016-07-29 Ethan A Merritt * src/graph3d.c: "splot ... with dots" was accidentally broken by the addition of multibyte PT_CHARACTER support. This was a regression from released versions of 5.0. 2016-07-27 Bastian Maerkisch * src/win/wgraph.c src/win/wgdiplus.cpp|h src/win/wresourc.h: Add an option to the menu to save the current graph as bitmap. Supports all encoders available to GDI+. On my system that is (TIFF, JPEG, GIF, PNG, and BMP). Defaults to PNG. * src/win/wgraph.c (SaveAsEMF): Tweak flags for GetSaveFileName() to make sure that the file/path is not read-only and to preserve the current working directory. 2016-07-26 Bastian Maerkisch * win/gnuplot.iss: Enforce inclusion of directory and program group pages since the default changed in Inno setup version 5.5.7. Bug #1831 2016-07-25 Bastian Maerkisch * src/win/wgraph.c src/win/wmenu.c: Use the "large" icon set for the toolbar if the nominal resolution is larger than 96dpi. Use TB_ADDBUTTON instead of TB_LOADIMAGES as this somehow eliminates another major resource leak. * src/win/wgraph.c (drawgraph) src/win/wgdiplus.cpp(drawgraph_gdiplus): Missing cleanup of cached point symbols caused a sizeable resource leak. Bugfix. 2016-07-24 Bastian Maerkisch * src/win/wgnuplot.exe.manifest src/win/wgnuplot.exe.manifest64 src/win/wgraph.c src/win/winmain.c|h src/win/wtext.c: Windows scales gnuplot's windows according to the monitor's scaling factor. This in turn may be based on the monitor's DPI or an explicit user setting. In consequence gnuplot's text window and plot output look blurred e.g. on high-resolution screens. This changeset makes gnuplot (system) DPI aware so that Windows no longer scales automatically (at least in the most common case). Window sizes in wgnuplot.ini are (still) interpreted to be given in the default resolution of 96dpi. See also bug #1807. * src/win/wtext.c (DoLine): Fix off-by-one error which caused the area below the last line to contain garbage in some cases. 2016-07-23 Bastian Maerkisch * src/win/wgdiplus.cpp src/win/wgraph.c: Textbox fillcolor and bordercolor support for windows terminal. Transparency works except when using the GDI only variant with antialiasing disabled. * src/win/wgdiplus.cpp: Use StringFormat::GenericTypographic() to draw text. This reduces differences in text placement between GDI and GDI+ output. 2016-07-22 Ethan A Merritt * src/gadgets.c src/gadgets.h src/save.c src/save.h src/set.c src/show.c docs/gnuplot.doc: Bookkeeping and core code implementation of textbox fillcolor and bordercolor. Note that transparency is possible if the fillcolor contains an alpha component. set style textbox {noborder | border {} * src/qtterminal/QtGnuplotScene.cpp src/wxterminal/gp_cairo.c term/cairo.trm term/gd.trm term/lua/gnuplot-tikz.lua term/post.trm term/pslatex.trm term/tkcanvas.trm src/gplt_x11.c: Textbox fillcolor support for individual terminals. * demo/all.dem demo/textbox.dem: New demo 2016-07-21 Bastian Maerkisch Enable UNICODE build on Windows. Patch #727 * src/command.c src/show.c src/win/wcommon.h src/win/wgdiplus.cpp src/win/wgnuplib.c|h src/win/wgraph.c src/win/winmain.c|h src/win/wprinter.c src/win/wtext.c term/gd.trm term/win.trm config/mingw/Makefile config/watcom/Makefile: Windows offers two versions of its API: a (multi-byte) variant termed "ANSI" and a Unicode (wchar_t) variant "W". A set of TCHAR macros and types enables writing code which can be compiled with or without the UNICODE/_UNICODE flags being set. With this change gnuplot on Windows now uses the Unicode variant by default. While this at first looks like a massive set of changes, most of it is actually rather simple: - Wrap strings constants in TEXT() macros. - Use TCHAR types instead of plain char types. - Replace string functions by tchar equivalents: _tcsdup (strdup) wsprintf (sprintf) _tcscmp (strcmp) _tcscpy (strcpy) _tcsncpy (strncpy) _tcscat (strcat) _tcsstr (strstr) - Modify printf format strings. In addition we now explicitly call "ANSI" functions, or provide conversions from CHAR to WCHAR or vice versa in some cases. * src/show.c (show_version): Add UNICODE build information to output of "show version long". * src/external.c|h: Use dll_open_w() also for console mode gnuplot on Windows. * src/command.c src/show.c src/win/wgnuplib.h src/win/wgraph.c term/win.trm: Define TCHARFMT to abstract the format string required for printf etc. for TCHAR strings. Use it to fix a few format strings. Note that Mingw64 seems to accept %ls but not %ws which according to MSDN are supposed to mean the same thing. 2016-07-21 Bastian Maerkisch * src/win/wgdiplus.c wrc/win/wgnuplib.h src/win/wgraph.c term/win.trm: Aggregate related move/vector requests in a polyline. This saves space in the internal list of drawing commands and accelerates re-drawing since the terminal code does not have to do this repeatedly. 2016-07-20 Ethan A Merritt * src/history.c (write_history_list): Recent regression caused the the history list numbering to be off-by-one. E.g. "history !N" mistakenly re-executed command N-1 rather than command N. See also Bug #1763 2016-07-19 Jun Takimoto * term/aquaterm.trm: The AQUA_boxfill() routine scales very badly with the total number of rectangles, making it horribly slow when invoked by "plot $foo with image pixels". Set the terminal flag TERM_POLYGON_PIXELS so that the image processing code will call term->filled_polygon() in preference to term->fillbox(). 2016-07-15 Bastian Maerkisch * src/win/wgdiplus.cpp (W_enhanced_text): Apply text color to enhanced text. Bug #1829 2016-07-14 Ethan A Merritt * docs/gnuplot.doc docs/plotstyles.gnu demo/custom_key.dem: Add custom key demo figure to the documentation. * src/boundary.c (do_key_layout): The command 'set key spacing ' adjusts the vertical spacing of entries in the key. However a complicated minimum size test caused the result to be discontinuous as a function of . I.e. 'set key spacing 2' came out the same as 'set key spacing 1' but both were smaller than 'set key spacing 1.8'. This patch makes the vertical spacing a simple multiplier for character height in the current font. It also dissociates the height of the key sample itself from the line spacing. 2016-07-08 Ethan A Merritt * src/gadgets.c (write_label): Consolidate code to create a textbox for this label. * term/pslatex.trm: Implement textbox margins. * src/qtterminal/qt_term.cpp src/qtterminal/QtGnuplotScene.cpp src/qtterminal/QtGnuplotScene.h: Implement textbox margins. * src/wxterminal/gp_cairo.c (gp_cairo_boxed_text): Reduce textbox margin size and linewidth to better match other terminals. 2016-07-04 Bastian Maerkisch * src/win/screenbuf.c|h src/win/wtext.c: Handling of colored text was lost when re-working the text window's internals for the 4.6 release in 2011. Turns out that it is not too hard to re-enable that again. 2016-07-03 Ethan A Merritt * src/util.c (print_line_with_error): Replace macros PRINT_MESSAGE_TO_STDERR PRINT_SPACES_UPTO_TOKEN PRINT_FILE_AND_LINE with new utility routine. Add code to reconstruct the original input line number by counting \n characters embedded in a command line produced by concatenation of successive lines in a bracketed clause. * src/graphics.c(plot_betweencurves): The filled curve options y=foo, below y=foo, etc were reworked to piggyback on the 'fill between' code by pre-loading ymax with foo on data input. However this mechanism breaks if the curve is smoothed because ymax is lost during smoothing. Revert the case of smooth + filledcurves + y=foo to use the original FILLEDCURVES_ATY1 code. This original rationale (IIRC) was to get better clipping but since we now have good general case polygon clipping perhaps all the piggyback cases should be reverted. 2016-07-02 Bastian Maerkisch * src/command.c (changedir): Handle encodings (Windows). * src/term.c: Replace local function prototypes with proper include. * src/win/wtext.c: Ctrl-C copies text to clipboard if there's selected text or sets the Ctrl-C (break) flag otherwise. * src/win/wtext.c (UpdateScrollBars): The size of the scroll bar thumb reflects the length or width of the scrollable area. 2016-07-02 Jun Takimoto * configure.ac: The change of 2016/05/23 to the --with-readline=DIR code did not properly handle the case when libedit is installed and thus found by AC_CHECK_HEADERS, but we really want to point to GNU readline installed in DIR. 2016-06-22 Ethan A Merritt * RELEASE_NOTES demo/plugin/Makefile.am: Note compiler flags needed to build gnuplot using Solaris SunPro C compiler. Bugs #1786 #1821 2016-06-20 Bastian Maerkisch * src/win/wtext.c (UpdateCaretPos): Fix a resource leak which occurred only if the encondig is set to utf8 or sjis. * src/readline.c (readline): VREPRINT conflicts with hard-coded ^R for reverse-search. Deactivate that section. * src/history.c (gp_read_history): Cast argument of isspace() to unsigned char. * src/history.c (write_history_list): Avoid adding extra leading spaces when saving to a file. Index of history_get is zero-based relative to history_base. * src/history.c (write_history_list): Let the built-in readline use the same code as is used for GNU readline and libedit. 2016-06-17 Ethan A Merritt * parse.h plot2d.c plot3d.c: Tracking the wrong iteration variable (iteration_current rather than iteration) caused plot command iteration with a negative increment to fail to iterate at all. E.g. 'plot for [i=9:1:-1] foo' plotted only the single plot with i=9. Bug #1819 * src/graph3d.c (draw_3d_graphbox): Don't draw ztics or tic labels at view angle rot_x=0 (projection along z axis). 2016-06-15 Ethan A Merritt * src/datafile.c (check_missing): Fix test for explicit 'set missing' string in a csv file (previous check assumed the string was followed by whitespace rather than a field separator). * src/graphics.c: Rearrange code to avoid compiler warning about unused variable image_z_axis. 2016-06-14 Bastian Maerkisch * src/readline.c src/plot.c config/config.mgw config/mingw/Makefile: Allow console mode gnuplot on Windows to use GNU readline, which is more powerful than the builtin code, but still does not handle Unicode input on Windows. 2016-06-13 Daniel J Sebald * term/tkcanvas.trm: Error check for ftruncate(). Bug #1798 2016-06-12 Daniel J Sebald * src/graph3d.c: Better fix for bug #1809 (placement of xyplane independent of tics or grid lines). 2016-06-12 Shigeharu Takeno * src/gplt_x11.c (gpXTextExtents): Wrap call to XTextExtents() in a routine that checks first for multibyte support. 2016-06-09 Ethan A Merritt * src/set.c (set_table) docs/gnuplot.doc: New option to append tabular plot output to an existing file. "set print" already works this way. set table "outfile" {append} * src/multiplot.c (multiplot_start): Remove alarming warning messages if default values for inter-plot spacing are used. * src/axis.c src/axis.h src/plot3d.c: Remove unused macro definitions. 2016-06-08 Ethan A Merritt * src/stats.c: Since we now store the data value itself rather than log(value), there is no longer a problem running stats while the axes are log-scaled. * src/stats.c: An unreadable line in a data file should not be a fatal error in "stats". Print a warning and keep going. 2016-06-07 Ethan A Merritt * src/graph3d.c demo/piecewise.dem: Consistent placement of xyplane regardless of whether tics or grid lines are present. Bug #1809 2016-06-05 Ethan A Merritt * src/axis.h (ACTUAL_STORE_WITH_LOG_AND_UPDATE_RANGE): Since we now store the data value itself rather than log(value), there is no longer a need to replace non-positive values with NaN on input. Nonlinear axes part 15 2016-06-04 Ethan A Merritt * src/axis.h (ACTUAL_STORE_WITH_LOG_AND_UPDATE_RANGE): Only update axis->data_min/max if the point being stored is INRANGE. Bug #1804 2016-05-31 Ethan A Merritt * set/set.c (set_palette): Disallow "set palette maxcolors 1" because this causes divide-by-zero errors during color smoothing. Reported originally as an Octave bug https://bugzilla.redhat.com/show_bug.cgi?id=1340660 2016-05-27 Bastian Maerkisch * src/readline.c src/gnuplot.doc: ^R starts a backward-search through the history. Searches the command history as you type. Use ^R/^S to find the next/previous match. * src/history.c (history_find_by_number, history_find, history_find_all): Share the functions for GNU readline and the built-in code. Remove the old specialised code. 2016-05-27 Ethan A Merritt Nonlinear axes part 14. * src/axis.h src/save.c src/set.c src/unset.c src/pm3d.c src/pm3d.h: - Turn all the log/delog macros into no-ops, including z2cb. This reduces the size of the gnuplot executable by 1-2% and removes any behavioral dependence on the axis->log flag in the core code. - Repurpose the axis->log flag to special-case nonlinear axes that were set up using the "set log" command. This makes the save and show commands report axes as log-scaled if they were set up by "set log" but not if they were manually defined using "set nonlinear" even though the result is otherwise the same. It also allows mousing of logscaled axes in the svg and canvas terminals. The implementation of "set log" has now been almost entirely replaced. This should be transparent to users. I know of only a few exceptions. - In some cases the range limits chosen for autoscaled log axes come out slightly different with the new implementation. In most cases this is an improvement, but it is possible there are other cases where the new autoscaled range is less satisfactory. Bug #1590 - Log scaling proper and choice of log-scale axis tics are now separable. This addresses several long-standing bugs, including Bug #10 filed back in 2000! I.e. even if the axis is log-scaled, you can still user "set tics " or "set tics nolog". Bug #10 Bug #1250 - Minor axis tics now work as expected over all logscale axis ranges. Bug #1748 - The new code is slightly slower. Speed will be recovered in a separate patch. 2016-05-26 Ethan A Merritt * src/pm3d.c src/pm3d.h: Make z2cb() a macro that calls the original routine. This will allow us to replace it cleanly with a no-op later. * src/set.c src/unset.c src/axis.h src/command.c src/axis.c: Nonlinear axes part 13. Re-implement the "set log " command internally as the pair of commands "set nonlinear via log10(x) inv 10**x; set xtics log". Similarly for an explicit base "set log " and for "unset log". The new code is selected by #define NONLINEAR_AXES 1 The orignial code is still in place and can be selected either by 1) ./configure --without-nonlinear-axes (equivalent to #undef NONLINEAR_AXES) 2) #define NONLINEAR_AXES 0 nonlinear axis support selected but "set log" command doesn't use it. Note: at this stage the "show" and "save" commands report logscaled axes as nonlinear but do not recognize that this is from "set log". The next patch set will repair this. 2016-05-26 Bastian Maerkisch * src/readline.c (fn_completion): Allow filename completion for system commands '!' and after pipe symbols '<', '|'. Bug #1747 2016-05-25 Bastian Maerkisch * src/gp_hist.h: Make (now) internal variables static. * src/readline.c: Use the new readline-compatible functions to access the history. * src/command.c src/gp_hist.h src/history.c: Use the new add_history function to add items to history. Remove the old one. * src/gp_hist.h src/history.c: Add functions similar to the GNU history library. These will eventually be used to merge codepaths which use GNU readline/history and the built-in readline to ensure consistent behaviour. * src/command.c (history_command): The `history !` command replaced the last command in the history list by the search result. That used to be the history command itself, but since 2016-03-31 history commands are no longer stored in the history. Now simply re-add the search result to the history. Bug fix. * src/syscfg.h src/command.c src/gp_hist.h src/history.c src/show.c: New define USE_READLINE instead of a growing list of checks for (more or less) GNU readline compatible libraries. Prepares for using WinEditLine on Windows. * src/plot.c (main) src/command.c (rlgets) src/readline.c|h (readline_ipc): Move initialisation of rl_getc_wrapper from readline_ipc() to main() also for GNU readline. Remove the wrapper function readline_ipc. 2016-05-23 Ethan A Merritt * src/datafile.c: partial "every" specifiers are not compatible with image plots. Ignore them when figuring out image dimensions. Bug #1796 2016-05-23 Bastian Maerkisch * term/win.trm: Fix a few format specifiers for POINT members which are of type long int. * configure.ac: Auto-detect if --with-readline=DIR refers to GNU readline or NetBSD editline. * src/win/wtext.c: When pasting, escape tab characters by ^V instead of replacing them by space. Bug #1444 * src/readline.c docs/gnuplot.c: Ctrl-V disables the interpretation of the following key as editing command. Hence, tabs can now be inserted again by pressing ^V TAB. On Windows, Ctrl-V is not passed on to the built-in readline, though, but interpreted as "paste". * src/win/wmenu.c src/win/wgnuplib.h: Use UTF16 "W" APIs to handle Unicode. This affects all menu dialog boxes (open/save, directory, input). It is still assumed that wgnuplot.mnu is encoded using the ANSI codepage. Reformat source while at it. Part 5 of wgnuplot Unicode support. Patch #727 2016-05-22 Daniel J Sebald * term/write_png_image.c: gdImageDestroy() needed on code paths for both error and success. 2016-05-21 Daniel J Sebald * term/write_png_image.c: Add utility routines to encode the png image in Base64 for in-line inclusion. * term/svg.trm: If the "standalone" terminal option is chosen, images will be embedded as a Base64 byte stream object rather than saved as an external *.png file and included by reference. Bug tracker item #1135 2016-05-21 Bastian Maerkisch * src/win/wmenu.c: Use standard file API instead of _lopen and friends. * src/misc.c (encoding_from_locale): On Windows, if the current encoding cannot be determined from the locale, fall back to deduce it from the currently active codepage. Avoids an error with OpenWatcom, which only handles the C locale. * src/readline.c src/win/wtext.c src/win/wcommon.h src/win/wgnuplib.h: Screen updates during line-editing in wgnuplot are really slow since it needs to redraw the line for every character which is printed. This is even more noticeable now that it needs to determine the on-screen width of text in order to take care of wide Unicode characters. This change improves the speed of screen output by eliminating unnecessary intermediate redraws by adding suspend/resume calls to several readline functions, which need to print and 'erase' (i.e. overwrite) multiple characters. Screen output is temporarily disabled and changes are only saved to wgnuplot's buffers. Only when the operation is finished, the current input line is redrawn. 2016-05-20 Bastian Maerkisch * src/win/text.c (TextUpdateStatus): Mingw64's swprintf seems to have a problem with the %S format. Use swprintf_s and format %hs instead. Bug #1794 * config/config.mgw: Add a work-around for the missing swprintf_s in MinGW32's library. 2016-05-19 Ethan A Merritt * configure.ac: Make --without-nonlinear-axes option match the help message. * src/axis.c (clone_linked_axes): Silence warnings generated by testing axis mappings at the current extrema (axis->set_m[in|ax]) if it is a dependent autoscaled axis. * src/command.c (link_command): Nonlinear axes part 12. As it stands, bad things happen if an axis ends up linked to another visible axis ("set link") and also to a shadow axis ("set nonlinear"). This patch adds checks to both commands to prevent this from happening. 2016-05-18 Bastian Maerkisch * src/win/wtext.c src/win/wpause.c src/win/wcommon.h: Show the current encoding in the status bar of the text window. * src/win/wpause.c: Use default GUI font (not the archaic system font). Match the size of the dialog box to the actual length of the message. * src/win/wtext.c (DragFunc, M_PASTE) src/win/wpause.c: Make sure to use wide character APIs for Unicode windows. Bug fix. 2016-05-17 * term/js/gnuplot_svg.js: Apply screen transform to mouse coordinates, so that browser-mediated changes of scale and origin are accounted for. In particular this handles the case where the size of an svg image is not the same as the object it is embedded in. 2016-05-17 Ethan A Merritt * src/plot3d.c (get_3ddata): The 7-column input case of "with vectors" was broken by code refactoring (2016-02-29). Clean this up and store color information in both head and tail of vector. Bug #1793 2016-05-15 Ethan A Merritt * term/post.trm: Do not read beyond the end of a font spec. 2016-05-13 Tatsuro MATSUOKA * src/internal.c (GP_MATHERR): The matherr mechanism is not supported by Mingw64 in both 32bit and 64bit mode. BM: But it is available with MSVC, so re-enable it there also for 64bit builds. Bug #1791 * src/config/mingw/Makefile: Add default path for QT in Mingw64 32bit builds. 2016-05-13 Bastian Maerkisch * src/fit.c (fit_command): Since memory requirements are linear in the number of datapoints, double max_data if we need to enlarge the internal buffers. Remove the associated message. Feature Request #444. 2016-05-11 Ethan A Merritt * src/axis.c (extend_primary_ticrange): Snap logscale range to nearest even power if it is already closer than epsilon (a.k.a. "set zero"). Bug #1590 2016-05-09 Shigeharu Takeno * docs/term-ja.diff docs/gnuplot-ja.doc: Sync Japanese documentation to doc version 1.988 2016-05-08 Ethan A Merritt * src/pm3d.c src/command.c src/mouse.c src/plot2d.c: Where possible, use macro nonlinear(AXIS *) rather than #ifdef NONLINEAR_AXES. * src/axis.h src/contour.c src/datafile.c src/graph3d.c src/graph3d.h src/plot3d.c src/util3d.c src/axis.c src/boundary.c: Nonlinear axes part 11. 3D plot axes x, y, z, countours. * demo/all.dem demo/nonlinear5.dem: logscale z with contours 2016-05-07 Bastian Maerkisch Let wgnuplot handle Unicode (not console mode gnuplot) Patch #727 Part 4 - File APIs. Windows C runtimes do not handle UTF-8. We work around this restriction by using the "wide" (UTF-16) variants of the API and translating from the internal encoding to UTF-16 when required. * src/win/winmain.c (win_fopen) src/syscfg.h: Wrap calls to fopen() in a new routine win_fopen() on Windows which uses _wfopen(). * src/win/command.c (do_system): Use _wsystem() instead of system(). * src/win/winmain.c (fake_popen, fake_pclose): Handle encodings by using _wsystem(). * src/stdfn.c (opendir, closedir, readdir, rewinddir): Handle encodings by using UTF-16 internally. Convert search results to a byte encoded format according to `encoding`. This most notably brings encoding/unicode support for tab-completion on the command line. * src/external.c|h (DLL_OPEN): Handle encodings for the file name of external libraries. 2016-05-07 Ethan A Merritt * src/gp_types.h (intNaN) src/axis.h (invalid_coordinate): If an expression returns "undefined" or NaN inside a function returning a real then the return value itself can be set to NaN. Inside a function returning an int, as for example the terminal coordinate mapping functions, this does not work. Now we define an integer equivalent intNaN with leading bit 1 and all trailing bits 0 (max negative value in two's complement representation). Most callers can test via a generic macro: if (invalid_coordinate(x,y)) ... * src/graphics.c: Filter out invalid coordinates produced by axis mapping functions. As an example this fixes bad postscript output produced by nonlinear1.dem. * src/axis.h: New macro nonlinear(AXIS *) becomes a noop if configured without support for nonlinear axes. * src/save.c: "save" command can use a loop to save the log status of all axes rather than running through them in-line one by one. 2016-05-07 Bastian Maerkisch Let wgnuplot handle Unicode (not console mode gnuplot) Patch #727 Part 3 - GUI. * src/win/wtext.c (M_PASTE): Always ask the clipboard for UTF-16 encoded text. This is always possible since Windows will convert other encodings (OEM/ANSI) for us. * src/win/wtext.c (TextCopyClip): Now that strings for display are stored internally in UTF-16 format, use Unicode to copy to clipboard, too. * src/win/wgnuplib.h src/win/wgraph.c src/win/winmain.c src/win/wtext.c: Drag'n'drop handles Unicode encoded file and directory names. * src/win/winmain.c (Pause) src/win/wpause.c src/win/wcommon.h src/win/wgnuplib.c|h: Create pause dialog box as Unicode window. Pause() will do the text conversion according to current encoding. * src/command.c (pause_command): Converting the string encoding is now only required for console mode gnuplot. * src/win/wmenu.c: Temporary fix of string type of argument for MessageBox. 2016-05-07 Bastian Maerkisch * config/watcom/Makefile: Fix compilation by adding definitions of version and patchlevel to flags. * config/config.oww: Add some more defines for function names. * src/win/wgnuplib.h src/win/winmain.c: Remove old compiler specific checks which are no longer required. * src/win/wgnuplib.h src/win/wgraph.c src/win/wpause.c src/win/wprinter.c src/win/wtext.c: No need to have functions use WINAPI (stdcall) calling convention. Remove define WDPROC. 2016-05-06 Ethan A Merritt * term/emf.trm: Better (though still not perfect) estimation of the space occupied by a UTF-8 string. Till now each byte in a multi-byte character was being counted as occupying space. Bug #1787 * src/term.h: The above change means that estimate.trm must be included earlier in term.h than emf.trm. Bump it to the top. * src/axis.h src/gadgets.c (apply_pm3dcolor) src/pm3d.c (z2cb): Use existing macros axis_do_log() and friends rather than doing hard-coded calculations with axis->log_base. * src/graph3d.c (draw_3d_graphbox): Fix think-o in revision to 3D axis label placement - should not multiply the constant offset by tic scale. Bug #1790 2016-05-06 Bastian Maerkisch Let wgnuplot handle Unicode (not console mode gnuplot) Patch #727 Part 2 - Screen Output. * src/win/wtext.c src/win/screenbuf.c|h src/win/wgnuplib.h: All output to the terminal window is stored in a buffer. Change the internal data type of this buffer from "char" to "WCHAR". This enables support for UCS-2 (i.e. BMP) characters. * src/win/wtext.c (TextPutCh): All of gnuplot's screen output during line-editing passes through this function. Make sure to properly convert codes to UTF-16 for storage in the buffer (includes UTF-8 and S-JIS sequences). Part 1 - Input. * src/text.c (WM_CHAR) src/win/wcommon.h src/win/wgnuplib.c: Use "W" API variant to create text window to receive UTF-16 codes in WM_CHAR messages. Convert them to the `encoding` set by the user for internal storage. Handles basic multilingual plane (BMP) only. * src/misc.c|h (encoding_from_locale init_encoding) src/plot.c src/set.c: When using the built-in readline, initialize the `encoding` according to current locale. This is required since the behaviour of the built-in readline depends on `encoding` for utf8 and sjis. Do this by extracting the code which handles `set encoding locale` to new functions in misc.c. * src/win/winmain.c|h (UnicodeText AnsiText WinGetCodePage WinGetEncoding) src/command.c src/win/wcommon.h src/win/wgraph src/win/wgdiplus.cpp: Move code to convert a text from a given encoding to UTF-16 (UnicodeText) from wgraph.c to winmain.c. Extract mapping of gnuplot's encoding values to a Windows codepage (WinGetCodePage). Move the inverse code from command.c to WinGetEncoding in winmain.c. Implement AnsiText to convert from UTF-16 to a byte encoded string. 2016-05-05 Bastian Maerkisch * src/readline.c src/util.c|h: The internal readline already handles UTF-8 multi-byte sequences. Extend that mechanism to S-JIS. Likely most useful on Windows. Patch #729 2016-05-04 Ethan A Merritt * src/save.c: "rotate parallel" was not being saved correctly. * src/graph3d.c: Revise placement of axis labels in 3D plots. Remove dead code. Use same axis-to-label gap on both x and y. Fix inconsistent use of h_tic or v_tic to define gap size. Bug #1781 2016-05-01 Matthew Halverson * term/svg.trm: Do not flag svg terminal as TERM_BINARY. 2016-05-01 Ethan A Merritt * src/command.c (link_command): Do not recalculate axis ranges after "unset link" for an axis that was not linked anyhow. * src/axis.c (parse_range): The in-line range for a nonlinear axis must be transferred to its corresponding primary axis. 2016-04-27 Ethan A Merritt * src/fit.c (call_gnuplot): More robust handling of undefined value returned by function being fit. * src/datafile.c (df_generate_pseudodata): Nonlinear axes part 10. Sampling along '+' should track linear/nonlinear state of primary plot axis. 2016-04-26 Ethan A Merritt * src/command.c src/plot2d.c src/set.c src/axis.c: Nonlinear axes part 9. Handle nonlinear polar axis r. This completes support for 2D axes. * src/internal.c (f_assign): In most places any numerical array index is accepted, but inside an assignment non-integral indexes caused an error. Now the index is taken as floor(value) as it is elsewhere. 2016-04-25 Ethan A Merritt * src/axis.c src/color.c src/command.c src/mouse.c src/parse.c src/plot2d.c src/pm3d.c src/save.c src/unset.c demo/nonlinear4.dem: Nonlinear axes parts 7 and 8 Handle nonlinear x2, y2 axes (2D) and cb axis (2D and 3D). 2016-04-24 Ethan A Merritt * src/axis.c src/axis.h src/set.c src/save.c: Nonlinear axes part 4 New command "set tics logscale" lets the new nonlinear axis code use the old logscale tic placement code. Thus the effect of the old command "set log x" can be replicated by set nonlinear x via log10(x) inverse 10**x set xtics logscale * docs/gnuplot.doc: Nonlinear axes part 5 (documentation). * demo/all.dem demo/probably_tux.demo demo/nonlinear1.dem demo/nonlinear2.dem demo/nonlinear3.dem: Nonlinear axes part 6 (demos) 2016-04-23 Ethan A Merritt * configure.ac src/axis.h: Preparation for nonlinear axis code. Nonlinear axes part 1 New configuration option --without-nonlinear-axes will allow to disable code that depends on #ifdef NONLINEAR_AXES. * src/graphics.c (adjust_offsets) src/plot2d.c (eval_plots): Revise tests for linked axes to distinguish between "set nonlinear" and "set link". * src/axis.c src/axis.h src/command.c src/mouse.c src/plot2d.c src/save.c src/save.h src/set.c src/show.c src/tables.c src/tables.h src/unset.c: Nonlinear axes part 2 New command "set nonlinear via f(axis) inverse g(axis)" At this stage only the x and y axes are supported. * src/axis.c src/plot2d.c: Nonlinear axes part 3 When plotting functions on a nonlinear axis, choose the samples evenly along the linear axis it is linked to. 2016-04-22 Ethan A Merritt * src/graph3d.h src/util3d.c: Move macro map_x3d() and friends from a shared header to the only file where they are used. 2016-04-21 Tatsuro MATSUOKA * win/gnuplot.iss: Restore to indicate utf-8 enconding. Reverts change 2016-04-10 * config/mingw/Makefile: Add warning that it is required to use the unicode version of Inno Setup Compiler rather than the standard version because gnuplot.iss is now encoded utf-8 with BOM. 2016-04-20 Ethan A Merritt * src/graphics.c (process_image): There are two paths through the code that extracts image data from an ascii input stream, depending on whether the x or y coordinate varies fastest. The fix for Bug #1767 corrected one path but broke the other. Now we fix the broken path so that both are working, at least on test data. Bug #1782 2016-04-16 Ethan A Merritt * src/util3d.c (apply_3dhead_properties) src/util3d.h src/hidden3d.c src/graph3d.c: After consolidation of 2D and 3D axis initialization into axis_set_scale_and_range() (3-Mar-2016) there is no longer any reason to have separate 2D and 3D versions of apply_head_properties for arrows. * src/graph3d.c (get_arrow3d): Fix typo introduced in 5.0 that caused arrows defined by "from ... rto ..." to be mangled in 3D plots. * src/fit.c (fit_command): Replace misleading use of SECOND_Z_AXIS. * src/fit.c (fit_command): Avoid using globals x_axis/y_axis/z_axis. * src/axis.c: Disallow commands affecting z2, e.g. "set log z2" * src/graphics.c (attach_title_to_plot): Bad things happen if you try to attach a title to the end point of a plot with no points (NODATA). 2016-04-15 Shigeharu Takeno * docs/gnuplot.doc: Edits to description of dashtype and pt . * src/term.c: Windows requires mode "wb" for pipe output, BSD requires "w" (no "b" character), linux will accept either. Bug #1756 2016-04-11 Ethan A Merritt * src/plot2d.c (refresh_bounds): Patch from 2016-01-18 to fix bug #1709 introduced a regression. Minimal example: 'set log x; plot '-'; replot' failed to delog/log the updated min/max axis limits. Bug #1774 2016-04-10 Tatsuro MATSUOKA * win/gnuplot.iss: Remove marker from start of file, since this makes autoconfigure fail on MinGW. >>> NB: Reverted 2016-04-21 2016-04-08 Bastian Maerkisch * src/util.c (existdir) src/misc.c (recursivefullname): Use Windows implementations of getdir() and friends in stdfn.c instead of platform specific code (or the ones provided by OpenWatcom). 2016-04-06 Ethan A Merritt * term/emf.trm: Enhanced text mode was over-zealously skipping new set_font requests if successive writes requested the same font+property. This caused it to lose italic/bold/etc properties. Prevent this by clearing the font history at the end of each enhanced text write. Bug #1772 2016-04-04 Ethan A Merritt * src/graphics.c (process_image): There is not currently a fool-proof mechanism for inferring image dimension from a set of x/y/z coords read as ascii data. But we can do better than transposing the row/column count by mistake. Note that this same transposition was previously fixed for the case of ascii matrix data input (Bug #1654) Bug #1767 2016-04-02 Ethan A Merritt * src/axis.c (eval_link_function): Test for "undefined" status on return from link evaluation. 2016-04-01 Ethan A Merritt * src/term_api.h src/graphics.c term/qt.trm: The qt terminal output for "with image pixels" suffers from bad inter-pixel artifacts. This seems due to use of term->fillbox() rather than term->filled_polygon(). The qt fillbox routine is probably fixable but for now we add a terminal flag TERM_POLYGON_PIXELS that tells the image code to use polygons instead. 2016-03-31 Bastian Maerkisch * src/command.c (rlgets) docs/gnuplot.doc: Do not add lines to command line history which start with a history command. Bug #1763 2016-03-31 Ethan A Merritt * src/history.c (add_history): The documentation states that "set history N" will save N lines on history to a file on program exit. This is true in practice for both the readline-based history code and the built-in history code. However the builtin code also truncates and renumbers the active history list in the current session. This makes the numbers essentially useless once the list reaches N entries. Remove this unwanted secondary effect in the built-in version. Bug #1763. * src/axis.c (gen_tics): Promote logscale base from 0 to 10 on entry rather than later having to test for nonzero each time. 2016-03-30 Bastian Maerkisch * config/mingw/Makefile: Use local version of gnuplot to generate plots of the tutorial. * config/mingw/Makefile: Collecting all required DLLs for a Windows binary package can be tedious. When activated via the DLLS=1 option, we now try to at least automatically copy all DLLs from Mingw-w64. Applies to targets `install`, `installer`, and `zip`. 2016-03-29 Bastian Maerkisch * src/win/wmenu.c: Remove the alternative code which would use a modified file-open-dialog to select a directory. This wasn't working since Vista anyway and was never included in any official binary. * src/command.c: The Windows specific winsystem() has been deactivated for a long time. Remove it. * src/readline.c: The return value of the *_getch() functions should be int, not char, in order to avoid confusion between EOF (-1) and (char)0xff. Bug 1558 * src/qtterminal/qtconversion.cpp: Avoid use of isnan() in C++ code. The C++11 standard has it as a function in the std namespace, whereas older compilers provude it as a macro or as ::isnan(). Use (var != var) instead. 2016-03-25 Ethan A Merritt * axis.c (eval_link_function) graphics.c (plot_lines): If map_x() or map_y() trigger eval_link_function(), it may return NaN. In this case the mapped coordinate value is nonsense and the "undefined" flag is TRUE. Check this flag to avoid drawing spurious line segments in plot with lines. * src/axis.c src/axis.h src/plot2d.c: New routine init_sample_range(). Always use SAMPLE_AXIS to hold bookkeeping values for function sampling, rather than sometimes using a real axis, sometimes a parametrics axis, and sometimes SAMPLE_AXIS. 2016-03-24 Ethan A Merritt * src/command.c (array_command): Sanity check: array name must start with a letter. * src/command.c (command is_array_assignment): Change the order of parsing: check for array assignment before trying to interpret the first input token as a command keyword. E.g. "array q[2]; q[1] = 1" must not interpret the initial 'q' as shorthand for 'quit'. Bug #1762 2016-03-24 Bastian Maerkisch * config/mingw/Makefile: The proper way to invoke shell commands in GNU makefiles is via $(shell ...). Using backticks relies on the shell doing the replacement and is not always what we want. Bug #1752 2016-03-21 Ethan A Merritt * src/datafile.c src/datafile.h src/unset.c: The df_fgets() change 4 days ago caused a regression because input buffer initialization was missed in some paths. Rename the shared buffer to df_line. Move the initialization into a new routine df_init() called via reset_command() on program entry. Bug #1758 * src/axis.c (clone_linked_axes): If an endpoint of a linked axis was exactly zero, the forward/reverse link check would complain because of a spurious divide-by-zero. Now we test for this case separately. * src/graphics.c (do_plot plot_points): The "dots" plot style is implemented internally as pointtype 0, although this was never stated in the documentation. Apparently some users discovered and used pointtype 0 routinely and were unhappy that it stopped working in version 5. Neither the original behavior nor its removal was intentional, but it is easy enough to restore the pre-version 5 behaviour so we do it now. Bug #1733 2016-03-20 Matthew Halverson * src/term.c (term_set_output): Open pipes in binary mode if the terminal has the TERM_BINARY flag set. Bug #1756 2016-03-17 Ethan A Merritt * src/plot2d.c: If pointtype PT_CHARACTER is the default for a plot then allow text options like "tc rgb 'foo'" in the plot command. * src/command.c src/eval.c src/parse.c: Disentangle gpfree_string() and gpfree_array(). Most callers should avoid the latter. * src/graph3d.c src/graphics.c src/hidden3d.c: "pt variable" point types were off-by-1 on output. Bug #1754 * src/datafile.c src/datafile.h src/datablock.c: There was already a routine df_gets() in datafile.c that safely reads in an arbitrary length line of data. Split this into a public function df_fgets() and a private wrapper df_gets(). Share the public function with data input in datablock.c:datablock_command. This removes the limit of 1024 characters per line read in to a datablock. 2016-03-15 Ethan A Merritt * src/qtterminal/qt_term.cpp: Revise "set term qt close" so that 1) It closes window with id N but leaves the current window id unchanged 2) It executes the command immediately rather than queueing it Bug #1753 * src/qtterminal/QtGnuplotWindow.cpp: Do not set the DeleteOnClose attribute of plot windows. This avoids an error message if you send a new plot after explicitly closing the current plot window. Bug #1753 #1554 2016-03-13 Ethan A Merritt src/axis.h src/mouse.c src/save.c: Minor code cleanup for linked axes. 2016-03-10 Ethan A Merritt * src/save.c (save_link) src/save.h src/show.c: New routine so that "show/save link" is distinct from "show/save xrange". 2016-03-09 Allin Cottrell * term/aquaterm.trm: Incorrect argument type to abs() or fabs(). 2016-03-08 Ethan A Merritt * src/axis.h src/axis.c src/command.c src/unset.c src/set.c: Add a new field axis->linked_to_secondary so that the handling of linked axes is more symmetric. Now you can do "set [*]range" on either end of the linkage and the min/max/etc for the other end of the linkage will be recalculated automatically. * src/axis.h src/axis.c src/boundary.c src/graph3d.c: Replace AXIS_SETSCALE(AXIS_INDEX, ) and axis_set_graphical_range(AXIS_INDEX, ) with a single combined routine axis_set_scale_and_range(AXIS *, ). * src/axis.c src/graphics.c: More cleanup and generalization of linked axis code. 2016-03-07 Shigeharu Takeno * term/tkcanvas.trm src/win/wgnuplot.mnu: Typos. * docs/term-ja.diff docs/gnuplot-ja.doc src/win/wgnuplot-ja.mnu win/README-Windows-ja.txt: Sync Japanese documentation to doc version 1.982 2016-03-06 Bastian Maerkisch * config/mingw/Makefile win/gnuplot.iss: Support MSYS2/Mingw-w64 as well as MSYS/MinGW and compilation using clang. Ability to build 64bit or 32bit zip package and installer. New make flags MINGW64, CLANG, COLOR-GCC, and M32. Default to 64bit builds when using Mingw-w64, use M32 flag to select 32bit builds. * src/win/wcommon.h src/win/wgdiplus.cpp src/win/wgnuplib.h src/win/wgraph.c: Fix several issues found by clang, with the most important being wrong delete's in wgdiplus.cpp. * scanner.c (get_num): strtoll() on Windows may consume zero characters causing an infinite loop for the input "0x". Bug #1745 * src/win/wgraph.c (MakeFonts, TryCreateFont): Do not rely on GDI supplying a sensible substitute when a requested font is not available. Instead, fall back to the user-supplied default font or the terminal's default font if the former is not available. Bug #1669 2016-03-05 Ethan A Merritt * src/wxterminal/gp_cairo.c (gp_cairo_set_linewidth): Change the minimum linewidth supported by pdfcairo to match the other cairo terminals. Reduce all of them to 0.20 pts (was 0.25 or 0.50). * src/axis.c src/graphics.c: More cleanup of linked axis code. 2016-03-03 Ethan A Merritt * src/plot2d.c (get_data): Introduction of "pt variable" increased the maximum number of data columns for "with points" to 5. If the plot command really does consume 5 columns, fine. But if get_data returns 5 columns for a simple 'plot with points' command, we have to ignore the extra columns gracefully. Bugfix * src/axis.c src/axis.h src/eval.c src/eval.h: Move eval_link_function() from eval.c to axis.c * src/axis.c src/axis.h src/eval.c src/eval.h src/command.c src/graph3d.c src/graphics.c src/mouse.c src/plot2d.c src/set.c: Revise clone_linked_axes() and eval_link_function() to use (AXIS *) pointers rather than AXIS_INDEX. * src/axis.c (clone_linked_axes): Warn that the program cannot currently handle via/inverse mapping of linked logscale axes. Bug #1736 2016-03-02 Ethan A Merritt * src/command.c (link_command): Accept "unset link " (regression since 5.0). 2016-03-01 Ethan A Merritt * src/internal.c (f_assign): Sanity check for array index that is found to be zero during expression evaluation. * graphics.c (map_position_double): Fix stupid typo that tried to map a linked y axis through the x mapping function. This always mis-placed objects and labels whose position is given in terms of y2 whenever y2 is linked to y1. Furthermore placement on either x2 or y2 could be wrong if the most recent plot did not use that same linked axis. 2016-02-29 Ethan A Merritt * src/gp_types.h src/graph3d.c src/graphics.c src/misc.c src/plot2d.c src/plot3d.c src/save.c src/term_api.h src/hidden3d.c docs/gnuplot.doc: Add support for "pointtype variable". If there are multiple "variable" properties in the same [s]plot command, the order of columns in the using spec is [s]plot DATA using x:y:z:pointsize:pointtype:color "pointtype variable" is only allowed with "points" or "linespoints". Only numerical point types are possible; if you want variable character pointtypes use "with labels" instead. * src/stats.c: "array A[n]; stats A" should default to single-column analysis (equivalent to stats A using 2) since the properties of the index are uninteresting. 2016-02-28 Ethan A Merritt * src/util.h src/util.c (common_error_exit): Move the code that resets various gnuplot state variables after an error from int_error() to a new common path routine common_error_exit() shared with os_error(). Ensure that GPVAL_ERRNO and GPVAL_ERRMSG are set in both cases. Bug #1741 2016-02-26 Hans-Bernhard Broeker * src/win/wgnuplot.mnu: Update the Windows GUI menu definitions a bit. 2016-02-20 Ethan A Merritt * src/parse.c (parse_assignment_expression): In order to support assignment to an array element (e.g. A[i] = foo) a slot for the array index is always pushed onto the evaluation stack even if no array is involved. However this slot was not being initialized to a valid PUSHC descriptor, so "show at" and certain other operations could fail even though they don't really care about this dummy slot. Now we initialize it to report that a NOTDEFINED variable was pushed. * src/command.c src/eval.c (push) src/internal.c src/parse.c: Back off to the original idea that bare array names are not legal for expression evaluation. The previous work-around of copying the entire array on every reference imposed a huge overhead for accessing the value of an individual entry. The previous code is left in place via #ifdef ARRAY_COPY_ON_REFERENCE to serve as a model for later expansion to support some subset of operations requiring a copy (e.g. simple assigment B=A or concatenation C = A.B). 2016-02-18 Ethan A Merritt * src/command.c src/eval.c (push): Evaluation of expressions that contain a bare array name is problematic because any attempt to access the actual array contents during or after evaluation requires that they be duplicated on push() and freed later. Freeing is the tricky part, particularly if the array contains STRING elements. This patch seems OK in preliminary testing, but at this point the only only possible operations are indexing and assignment. If other operations are added later they may reveal inadequacies in the alloc/free tracking. 2016-02-14 Bastian Maerkisch * src/wxterminal/wxt_gui.h: Use local events to avoid warnings about incompatible linkage on Windows. * config/mingw/Makefile: Use MinGW's own implementations of printf etc. which are C99 compliant. * src/win/wtext.h: Avoid warnings about the re-definition of popen/pclose with fake pipe support using MSYS2/Mingw-w64. * src/wxterminal/wxt_gui.cpp|h: Fixes to make the wxt terminal work with wxWidgets 3 on Windows: 1) Disable wxWidgets debug assertions in release builds. This does not solve the problem with a setlocale(LC_ALL, NULL) == "C" test in wxLocale, but at least gets rid of the warning. 2) Flush the cairo surface before blitting the internal bitmap to screen. * src/win/wgraph.c: Include direct.h for _chdir(). * term/tkcanvas.trm (TK_init): TK_image requires WRITE_PNG_IMAGE to be defined. 2016-02-12 Jun Takimoto * term/tkcanvas.trm: More fixes suggested by clang warning messages. 2016-02-11 Bastian Maerkisch * term/wxterminal/wxt_gui.cpp (wxt_raise_window): On Windows, only Restore() the window if it is iconized. Fixes accidental resize of maximized windows. * term/tkcanvas.trm (TK_vector): Fix for vector commands without preceeding move as e.g. in "with line lc variable". * src/fit.c: Fix order of using specs printed to log-file. Bug #1657 * docs/term-ja.diff: Remove japanese documentation for sun, next, and openstep terminals which were removed on 2016-01-11. 2016-02-11 Ethan A Merritt * src/term.c src/axis.h src/plot3d.c: Remove dead code and old comments. Comment out the call to AXIS_WRITEBACK that appears to be a vestige from a code reorganization in the version 3.8 era. There are no other users of this macro. * src/set.c src/show.c: set/show arrow length wants only a single coordinate, not three. (See patch of 2015-12-19). 2016-02-10 Bastian Maerkisch * term/dumb.trm: Include stdint.h to make sure that uint32_t is defined (MSVC). * config/config.nt config/config.nt: Sync with output of configure. * config/mingw/Makefile: Use gnuplot's default settings to generate plots for the documentation. * configure.ac: Cairo terminals require pango 1.22 (pango_layout_get_baseline) now. Consequently they do no longer build on RH5 etc. 2016-02-10 Ethan A Merritt * src/command.c (print_command): Do not allow printing a datablock into itself, which could cause infinite recursion. * src/stats.c: Reset data input mode to 2D at start of stats command. This produces consistent results for "stats FOO matrix", even if the previous command was "splot". Bug #1739 2016-02-08 Anton Gladky * term/tkcanvas.trm: Replace statements of the form fprintf(gpoutfile, string) because they trigger a compiler warning/error with -Werror=format-security. 2016-02-08 Ethan A Merritt * src/datafile.c src/parse.c src/parse.h: Add bookkeeping to allow 'plot', 'stats', and 'fit' commands to work on data stored in an array. array A[200] do for [i=1:200] { A[i] = sin(pi * i/100.) } plot A title "sin(x) in centiradians" * demo/array.dem docs/gnuplot.doc: Documentation and demo for use of arrays in 'fit' and 'plot'. * src/command.c src/save.h src/save.c (save_array_content): Dump content of arrays in a "print" or "save" statement, analogous to printing/saving content of user-declared variables. 2016-02-07 Ethan A Merritt * src/command.c src/command.h src/eval.c src/eval.h src/gp_types.h src/internal.c src/internal.h src/parse.c src/tables.c src/util.c src/save.c: Basic support of arrays. Introduce support for arrays as an indexed list of variables. An array must be declared before its entries can be accessed. Each entry A[i] acts as a normal gnuplot user variable (integer, string, complex). Variables held in an array need not be of the same type. array A[2] = [ "apples", "oranges" ] set title sprintf("Comparing %s and %s",A[1],A[2]) plot for [n = 1:2] A[n] title A[n] * docs/gnuplot.doc demo/array.dem demo/all.dem demo/html/*: Documentation and demo for basic use of arrays. 2016-02-04 * src/gadgets.c (clip_line): Use (double) rather than (int) for intermediate coordinates used in line clipping. Bug #1614 2016-02-04 Joachim Wuttke * term/tkcanvas.trm: Replace old (pre-1999) tkcanvas.trm with a rewrite from Joachim Wuttke and Bastian Maerkisch This new driver has only partial support for scripting languages other than tcl and has unreliable support for image data, but it is strictly better than the 1999 terminal. 2016-02-03 Jun Takimoto * config/mingw/Makefile: Pass through MAINVERSION and PATCHLEVEL into the MinGW build process. 2016-02-03 Daniel J Sebald * src/help.c: Be less aggressive about suppressing help index entries that might share a leading substring. Bug #1734 2016-02-03 Ethan A Merritt * src/stats.c (create_and_set_int_var): Some of the user-accessible variables created by the stats command are necessarily integral (e.g. STATS_records, STATS_columns). Create these using Ginteger() rather than Gcomplex(). * src/graphics.c (finish_filled_curve): The routine fill_between() passes in an extra-long array whose last element stores above/below flag. We must not try to test this flag on other processing paths because for them it is an out-of-bounds access (found by valgrind). 2016-01-31 Ethan A Merritt * src/wxterminal/wxt_gui.cpp: Another pair of fixes for wxt font processing. Prevent a memory leak from temporary storage of the fontname. Initial font used by enhanced text processing should be the most recently set font, not the original one from "set term". 2016-01-28 Ethan A Merritt * src/set.c (set_missing): Remove minor memory leak if "set datafile missing '*'" is called repeatedly. * src/boundary.c src/graph3d.c src/graph3d.h src/graphics.c src/graphics.h src/plot2d.c src/plot3d.c: {s}plot ... title "foo" at New option for customized placement of individual key entries. * docs/gnuplot.doc demo/custom_key.dem: Documentation and demo for customized placement of key entries. 2016-01-26 Jun Takimoto * term/wxt.trm: Previous fix for parsing font "name,size" was incorrect. Bug #1731 2016-01-25 Ethan A Merritt * src/qtterminal/QtGnuplotScene.cpp: Only toggle plots on left-click (not center- or right-click). * src/qtterminal/QtGnuplotScene.cpp: Use explicit color Qt::lightGray to gray out toggled key entries. 2016-01-21 Jun Takimoto * .../.cvsignore: Include more of the auto-generated files in the lists of things for CVS to ignore during update/diff/status/commit/etc 2016-01-18 Ethan A Merritt * src/plot2d.c (refresh_bounds): The intent of this routine is to keep the previous axis range if the user has not changed autoscale settings. It wasn't working. I'm not sure the revised code is doing quite the right thing either, but at least it correcly handles the test case in Bug #1709. 2016-01-17 Ethan A Merritt * src/graphics.c (process_image): This routine handles both 2D and 3D images so it must not try to access fields only present in the 2D case (in this case plot->x_axis and friends). Bug #1718 * term/wxt.trm (wxt_options): Fix regression, fontsize ignored if it is the only thing in the requested font string (e.g. font ",12"). Bug #1731 2016-01-16 Hans-Bernhard Broeker Fix "make distclean" problems caused by a bug in automake, which in turn is triggered by docs/doc2wxhtml requring src/version.c. * configure.ac (VERSION_MAJOR, PATCHLEVEL): Export these from shell scripts to config.h. (PATCHLEVEL): Export to configure script. * docs/windows/doc2html.c (convert): Replace references to version.c constants by macros in config.h. * docs/Makefile.am (doc2wxhtml_SOURCES): Remove use of version.c. * term/djsvga.trm (DJSVGA_set_font): Somebody overlooked this call of graph_error. 2016-01-14 Ethan A Merritt * src/eval.c (real) src/standard.c (f_int): Special case handling of NaN or undefined values during expression evaluation was lost if the expression passed through an intermediate integer value. For example int(NaN) evaluated to "-2147483648" rather than "NaN" or "undefined". Add special case checks to the integer evaluation path. 2016-01-12 Jun Takimoto * term/aquaterm.trm: Add support for version 5 custom dashtypes. 2016-01-11 Ethan A Merritt * term/sun.trm: The SunView windowing system was phased out after Solaris 2.2 (end of life 1999). Remove the corresponding terminal from the gnuplot distribution. * configure.ac configure.vms config/makefile.dj2 config/makefile.emx docs/doc2texi.el docs/Makefile.am PORTING src/makefile.all src/makefile.awc src/term.c src/term.h: Remove references to sun.trm. * docs/gpcard.tex (move to subdirectory docs/old/) Makefile.am makefile.os2 mingw/Makefile MacOSX/createdist.sh: gpcard is horribly out of date to the point of holding only historical interest. Remove it from the build rules. Also remove makefile.dst which was superseded by autotools + Makefile.am 15 years ago. 2016-01-09 Ethan A Merritt * src/qtterminal/qt_term.cpp: "set term qt title 'foo'" was incorrectly changing the title of the previous plot window in addition to that of the new plot window. * src/internal.c: Error messages should distinguish between an uninitialized variable and an improper variable type. * configure.ac: Do not assume that wxwidgets uses the gtk2 toolkit (it might use gtk3 or on OSX it might use cocoa). * src/pm3d.c: Account for interpolated quadrangles when applying a pm3d lighting model. The NeXT and OpenStep platforms per se are 15-20 yrs dead and gone. Aquaterm is the evolutionary successor of openstep. * src/NeXT src/OpenStep term/next.trm term/openstep.trm configure.ac m4/next.m4: Remove the drivers proper. * src/Makefile.am src/axis.h src/makefile.all src/makefile.awc src/stdfn.h src/syscfg.h src/term.c src/term.h src/util.c src/variable.c term/cgm.trm term/driver.h docs/Makefile.am docs/doc2texi.el: Remove references to the next and openstep terminals and remove code conditional on NEXT. 2016-01-05 Ethan A Merritt * src/fit.c: The fit command should gracefully accept data files known to contain column headers. Previously this sequence would fail: set key autotitle columnhead; fit ... * src/stats.c: Make data errors in stats command non-fatal, i.e. int_warn() rather than int_error(). * src/internal.c: Store return value from system("") in GPVAL_ERRNO. 2016-01-04 Ethan A Merritt * src/wxterminal/wxt_gui.cpp: Several components of the gtk2 API have been deprecated, which prevents compiling the wxt terminal using wxt3 or indeed recent versions of gtk2. 1) Replace handle->window with gtk_widget_get_window(handle). 2) gdk_window_foreign_new() (used only by --enable-raise-console) no longer exists. Make this code conditional on (GTK_MAJOR_VERSION == 2). 2015-12-31 Ethan A Merritt * term/post.trm (PS_dashtype): Prevent overflow of the custom dash pattern array, leading to possible corruption of the output postscipt file. * src/set.c src/show.c src/term.c: New command "set mono linetype cycle N" acts analogously to "set linetype cycle N". If a monochrome linetype N is requested where N is larger than any defined monochrome linetype, then substitute a corresponding linetype in the range [1:cycle]. 2015-12-30 Ethan A Merritt * src/term_api.h src/term.c src/set.c (init_monochrome): Move this routine from set.c to term.c * term/lua.trm: Treat "set term tikz monochrome" as "set term tikz; set monochrome". * term/lua/gnuplot-tikz.lua: Add \SetUnicodeOption{mathletters} to document produced by "set term tikz standalone". This handles utf-8 encoded greek letters in gnuplot labels and titles. 2015-12-29 Ethan A Merritt * term/wxt.trm (wxt_options): If a terminal setting option is not recognized, issue a warning rather than exiting early from terminal initialization. Incomplete initialization can cause segfaults later. * src/show.c: Show current state of "set monochrome" option. * src/unset.c (unset_monochrome): Clear monochrome flag in current term. * src/misc.c (parse_dashtype lp_parse) docs/psdoc/ps_symbols.gpi: Allow "dashtype 0", which is treated as LT_AXIS. Modify ps_symbols demo script to select dashed lines using version 5 syntax ("dashtype N") rather than version 4 syntax ("linetype N"). Bug #1724 2015-12-27 Ethan A Merritt * src/qtterminal/qt_term.cpp (qt_waitforinput): This routine is called to receive both external (e.g. mouse) events and input from stdin. In cases where we only care about events we must not perturb the state of stdin. One such case was missed, leading to a character being dropped from the stdin stream depending on event timing. Bug #1559 2015-12-24 Jun Takimoto * src/qtterminal/QtGnuplotScene.cpp: On Mac OS X, the Qt::KeypadModifier bit of event->modifiers() is *always* set when an arrow key is pressed. 2015-12-21 Ethan A Merritt * src/plot2d.h src/plot2d.c (parse_plot_title) src/plot3d.c src/gadgets.c src/gadgets.h docs/gnuplot.doc: Consolidate 2D and 3D code for "[s]plot ... title " into a single routine parse_plot_title. 2015-12-19 Ethan A Merritt * src/axis.h src/axis.c (get_position_default) src/setshow.h src/show.c (show_position) src/set.c (parse_label_options) src/save.h src/save.c (save_position) src/jitter.c src/plot2d.c src/plot3d.c: Distinguish internally between 1D positions (single coordinate), 2D positions (only x,y) and 3D positions (x,y,z). This removes the ambiguity from commands like plot foo with labels point offset 1,1, func(x) Is func(x) a z offset (probably not) or is it a 2nd plot? Previously the get_position() code ate it as a z offset, but now the parsing is unambigously a 2D offset followed by a separate plot element. 2015-12-18 Ethan A Merritt * src/save.c (save_variables__sub): Do not write ARGn variables to save file. 2015-12-16 Ethan A Merritt * src/axis.c (copy_or_invent_formatstring): Too many fixed precision decimal places, all zero, could be generated by a plot sequence like set log y; plot [1:100] exp(-x) limit the number of decimal places to 10. related to bugs #1496 $1518 2015-12-10 Hans-Bernhard Broeker * src/qtterminal/qt_conversion.cpp (qt_imageToQImage): Do not call C++ isnan() without a namespace specifier. EAM: Reverting this change. We may need a fix, but this isn't it. qtterminal/qt_conversion.cpp: In function 'QImage qt_imageToQImage(int, int, coordval*, t_imagecolor)': qtterminal/qt_conversion.cpp:129:14: error: expected unqualified-id before '(' token if (std::isnan(*image)) 2015-11-29 Allin Cottrell * term/metapost.trm: Set terminal flag TERM_IS_LATEX unless the "notex" option is active. This causes axis tic labels to use the same default format "$%h$" as other TeX terminal types. 2015-11-12 Douglas Mason Lukas Jirkovsky Ethan A Merritt * src/pm3d.c (apply_lighting_model) src/pm3d.h src/save.c src/set.c src/show.c src/stdfn.h src/tables.c src/tables.h docs/gnuplot.doc: Add a simple lighting model to pm3d rendering. Syntax: set pm3d nolighting # default state set pm3d lighting {primary } {specular } The command `set pm3d lighting` selects a simple lighting model in which a single fixed light contributes 50% of the overall illumination. The strength of this light relative to the ambient illumination can be adjusted by `set pm3d lighting primary `. Specular highlights are calculated using a Phong model with fixed exponent. The fractional contribution of specular highlighting can be adjusted. Model parameters controlling the illumination angle and Phong exponent are not exported to the user in this version, but easily could be if requested. Original patch by Douglas Mason. See Feature Request #323 (Mar 2012). Revised for gnuplot version 4.6 by Lukas Jirkovsky. Revised by EAM for version 5.1 and modified to coexist with pm3d settings for depthorder, interpolation, and projection to the bottom or top of the view box. * demo/pm3d_lighting.dem: New demo 2015-11-09 Ethan A Merritt * src/axis.c src/axis.h src/graphics.c src/save.c src/set.c src/show.c src/unset.c: The documentation says that "set tics `front` or `back` controls whether the tics are placed behind or in front of the plot elements". This was sort of true but it did this by moving the entire grid along with the tics, so you could not entirely place the tics and tic labels in front of the grid lines. Decouple these two operations so that `set tics {front|back}` does only what it is documented to do. Bug #1704 * src/axis.c (gen_tics): "set {*}tics rangelimit" applies to minor tics as well as major tics. Bug #1705 2015-11-06 Ethan A Merritt * src/qtterminal/qt_term.cpp: Improved vertical alignment of Qt text fragments (analogous to Jun's cairo patch). 2015-11-06 Jun Takimoto * src/wxterminal/gp_cairo.c: Fix longstanding bug in vertical alignment of text fragments in cairo terminals (including wxt). Text containing superscripts was placed too low; text with subscripts too high. This is corrected by a query to pango_layout_get_baseline(). Bugs #1319 #1586, probably others 2015-11-06 Ethan A Merritt * src/internal.c (f_word f_words): The implementation of word(string,N) returned the total number of words for any N<0. This was used internally to implement words(string) and word(string,-1) but meant that any N<0 returned an unexpected value to the user. Limit the special case to a single magic value and let all other N<0 return "" as expected. 2015-11-02 Shigeharu Takeno * docs/term-ja.diff docs/gnuplot-ja.doc: Sync Japanese documentation to doc version 1.967 * docs/gnuplot.doc: typos 2015-11-02 Ethan A Merritt * src/graphics.h src/plot2d.c: Add a new field to (struct curve_points). plot->base_linetype holds the original linetype index for this 2D plot, prior to applying variable color, linetypes defined in terms of other linetypes, etc. This allows assigning successive colors or other properties to elements of a 2D plot (e.g. histogram components, boxplot factors). An analogous field splot->hidden3d_top_linetype is already maintained in (struct surface_points) for use by 3D plots. * src/graphics.c src/plot2d.c: In boxplots with multiple component factors, interpret "lc variable" as requesting a new color for each factor. 2015-10-31 Ethan A Merritt * src/util3d.c src/util3d.h (edge3d_intersect two_edge3d_intersect): Change parameters to (coordinate *) rather than (array, index) so that the same routines can handle clipping 3D vectors that are not stored as successive entries in an array. * src/graph3d.c src/plot3d.c: Support "set clip {one|two}" for 3D vector plots. * src/datafile.c (df_set_key_title): Use of columnheader(N) could sometimes leave an extraneous character '@' in the plot title. This was introduced in 5.0.1 as a side effect to the fix for Bug #1596. 2015-10-28 Ethan A Merritt * src/interpol.c (mcs_interp): Handle log-scaled y axis when using monotonic cubic splines ('smooth mcs'). * src/plot2d.c (boxplot_range_fiddling) src/graphics.c (plot_boxplot): Fix autoscaling of x axis if there are multiple boxplots with factors. Bug #1696 * src/graphics.c (plot_points plot_boxplot): Declare and initialize p_height and p_width locally (no code was updating the global copy). This fixes nonfunctional "set clip points" command in version 5. * src/boundary.c (do_key_layout) src/graph3d.c (boundary3d): Remove reference to p_height, p_width, which were not being initialized. * src/show.c (show_clip) docs/gnuplot.doc: Clarify effect of "set clip". 2015-10-27 Ethan A Merritt * Modify demos to increase coverage of gnuplot features. line_arrows: illustrate 'set arrow from ... rto ...' rgba_lines: illustrate 'set arrow from ... length ... angle ...' smooth: illustrate both smooth cumulative and smooth cnorm dashtypes: illustrate numerical dashtype definition monotonic_spline: smooth mcs break_continue: exercise "exit" command from inside "call " volatile: exercise 'skip', 'volatile', 'refresh' boxplot: illustrate 'nooutliers' * demo/all.dem: Call additional demos to increase code coverage. rgba_lines fitmulti break_continue monotonic_spline volatile 2015-10-26 Ethan A Merritt * src/graph3d.c src/axis.c src/util.c src/util.h src/mouse.c src/dynarray.c src/util3d.c src/hidden3d.c: Get rid of graph_error(). The routine graph_error() was originally intended as a special case of int_error() to be called "while graphics active". We have long since gone to calling int_error() everywhere. Replace the remaining instances of graph_error() and remove it. Comment out one call site in mouse.c that can no longer be reached since the error is trapped elsewhere. 2015-10-24 Ethan A Merritt * src/axis.c (save_autoscaled_ranges restore_autoscaled_ranges) src/axis.h src/plot2d.c: Auto-scaled axis ranges are extended as data is read in, but this is counterproductive for some processing modes (e.g. the y values contributing to 'smooth cnorm'). The new save/restore routines allow these plot modes to undo the effect of range extension. 2015-10-22 Ethan A Merritt * src/time.c (gstrptime): Fixes a bug in processing time input using format "%s". Because time input can cross whitespace between fields, the string being parsed for one field may continue on into the next field. The "%s" code looked for the first decimal point in the string, but would read beyond the current field to find it, causing an erroneous fractional second to be added to the input time value. * term/post.trm: Fix scope of dictionary in Prolog * src/term_api.h term/post.trm src/graphics.c (plot_border) term/PostScript/prologue.ps term/PostScript/prologues.h: This change addresses a backward-compatibility issue with the postscript terminal in version 5. The long ago original postscript terminal used a double-width line for the plot border. This was what you got when you specified "lt -1" in a gnuplot command. All terminals agree that lt -1 is black and solid, but postscript is anomalous in thinking that it has double width. Furthermore postscript is anomalous in applying the current line width to draw dots (pointtype 0). This meant that dots drawn with lt -1 were twice as big as dots drawn with other linetypes. We could just get rid of the double-width anomaly, but then new plots would have a thinner border than old plots produced with the same script. This patch instead adds a layer flag TERM_LAYER_BEGIN_BORDER so that the postscript terminal can temporarily use a new line type LTB rather than LTb. All other terminals will ignore it. Bug #1689 and others 2015-10-16 Abhijin Adiga * term/lua/gnuplot-tikz.lua: Truncate term->h_char using math.floor(). This prevents text placement errors on OSX 10.10.2 with lua5.3. Bug #1682 2015-10-16 Ethan A Merritt * term/lua/gnuplot-tikz.lua: lua5.2 deprecates loadstring() in favor of load(). One of my test systems gives runtime errors without this change. Bug #1682 2015-10-13 Hans-Bernhard Broeker * src/makefile.awc (COREOBJS): Add jitter.c module. * src/jitter.c (jitter): Repair initializer --- completely empty is not allowed. 2015-10-09 Ethan A Merritt * src/set.c (parse_label_options): Only the full word "boxed" is acceptable as a label option. Allowing the shorthand "box" causes confusion in other commands with a "box" option. Bug #1681 * src/interpol.c (cp_implode): Fix bug in "smooth cnorm" that has been there since the option was first introduced. 2015-10-08 Ethan A Merritt * src/plot2d.h src/plot2d.c docs/gnuplot.doc: Until now, "plot foo using N smooth freq" and "plot foo using N smooth kdensity" were interpreted as if the using clause was "using 0:N". This is almost certainly not what the user expected. Change it so that the interpretation is "using N:(1.0)", i.e. unit weight for each data point. This was always the recommended use in the docs; now it is the default interpretation as well. 2015-10-06 Ethan A Merritt * src/set.c (set_obj): "set obj N polygon ..." failed to consume all possible options and keywords. Bug #1680 * src/plot2d.c (get_data): "plot $foo using N smooth kdensity" is now interpreted as "using N:(1)". Before it was interpreted as "using 0:N" which makes little sense. 2015-10-02 Ethan A Merritt * src/boundary.c src/graphics.c src/save.c src/set.c src/term_api.h src/unset.c demo/varcolor.dem: Clean up implementation of "set errorbars ". Apply errorbars line properties also to candlesticks and boxplots. Add explicit handling for two line property settings that to the best of my knowledge were not used intentionally by other code paths. * src/term.c (term_apply_lp_properties): Treat LT_DEFAULT as "do not change current setting" rather than pass it to term->linetype(), which could produce unpredictable behaviour (not all terminals act the same). * src/gadgets.c (apply_pm3dcolor): Treat TC_VARIABLE as "do not change current setting". Previously it would have resulted in setting the color to black, but that was unintentional. 2015-10-01 Ethan A Merritt * src/datafile.c (df_readascii): The test intended to check whether the user requested more than 7 columns of formatted input has always been incorrect for 'splot'. It tested against MAXDATACOLS rather than the actual number of requested columns. The test worked but was redundant for 'plot' since requesting more than 7 columns will trigger another error message "too many columns for requested style". Remove the test. Bug #1675 * src/axis.c src/axis.h src/boundary.c src/gadgets.c src/gadgets.h src/graph3d.c src/graphics.c src/hidden3d.c src/misc.c src/save.c src/set.c src/term_api.h src/term.c: #define and use DEFAULT_P_CHAR for all initializers. Change lp_style_type.p_char from an unsigned long to char [8]. This suffices to hold the UTF-8 encoding of all unicode code points. Bug #1676 2015-09-25 Ethan A Merritt * src/boundary.c (do_key_sample): Use the same arrowhead style in the key sample as used by the plot itself. 2015-09-18 Ethan A Merritt * src/graphics.c (plot_boxplot): Fix overrun if no valid points are found for some boxplot category (a.k.a. "level"). Fix clipping of outliers in zoomed boxplot. 2015-09-15 Mojca Miklavec * term/lua.trm: lua 5.3 deprecates luaL_checkint() Bug #1672 2015-09-13 Ethan A Merritt * src/graphics.c src/jitter.c src/jitter.h src/makefile.all src/Makefile.am src/save.c src/save.h src/set.c src/show.c src/tables.c src/tables.h src/unset.c: New plot capability. Syntax: set jitter {overlap } {spread } {wrap } {swarm|square} When the x coordinates of a data set are restricted to discrete values then many points may lie exactly on top of each other. Jittering introduces an offset to the coordinates of these superimposed points that spreads them into a cluster. This type of plot is called a "bee swarm" plot in R and other packages. * demo/all.dem demo/html/index.canvas demo/html/index.save demo/html/index.svg demo/html/Makefile demo/html/Makefile.canvas demo/html/Makefile.svg demo/jitter.dem docs/gnuplot.doc docs/plotstyles.gnu: Documentation and demos for jitter settings and bee swarm plots. 2015-09-12 Ethan A Merritt * docs/gnuplot.doc: Reorganize the section containing plot style examples so that styles not generated by "with " are listed separately at the end. E.g. polar plots are generated by the same "plot ... with " commands as non-polar plots. 2015-09-11 Akira Kakuto * src/help.c term/lua.trm: #ifdef _WIN32 '\r' is accepted as a terminator after a prompt. 2015-09-04 Ethan A Merritt * src/plot2d.c: For 2-column data plots with filledcurves, treat y= as if it were provided in the 3rd data column. Bug #1568 * src/graphics.c (plot_boxes): Prevent array overrun if there are undefined points are at the end of a data set, as in the first plot of smooth.dem. 2015-08-31 Jun Takimoto * src/wxterminal/wxt_gui.cpp: Reset "yield" interlock on ctrl-C. Prevents endless futile loop with single-threaded wxt terminal. 2015-08-30 Ethan A Merritt * src/wxterminal/wxt_gui.cpp: Remove FPRINTF statements referring to a stopwatch timer that no longer exists. 2015-08-28 Ethan A Merritt * src/wxterminal/wxt_gui.cpp (wxt_waitforinput): The single-threaded code path used by OSX and Windows (and optionally linux) was not honoring "pause mouse ..." commands, including "pause mouse close". * src/wxterminal/wxt_gui.cpp (wxt_exec_event): The single-threaded code path could lose an input character that arrived during a "pause mouse" interval. Use ungetc to push a character back onto the input queue in this case. (Not applied for Windows but maybe it should be?) 2015-08-25 Ethan A Merritt * src/datafile.c (plot_option_index): Sanity check that index >= 0. * src/datafile.c (df_determine_matrix_info): "skip" option applies to records at the start of ascii matrix data as it does for normal ascii files. * src/datafile.c (initialize_plot_style): Some binary file options need to know what style of plot is involved. This lookup was being done as part of adjust_binary_use_spec(), but not all plots need to call that routine for anything else. Move the plot style lookup into a separate routine. * src/datafile.c (df_add_binary_records): Remove dead code (error checks that can never be reached). Make some internal bookkeeping variables df_* static. * src/datafile.c: whitespace cleanup 2015-08-24 Ethan A Merritt * src/datafile.c (df_readascii): The code supporting an input format assumed that the data being interpreted came from a file rather than using whatever string was returned by df_gets(). E.g. this failed plot $datablock using 1:2 "format-string" Bug #1666 2015-08-24 Dima Kogan * src/datafile.c (df_open): Syntax "<&N" plots data read from an arbitrary file descriptor, but that descriptor may be a pipe (non-seekable) rather than a true file (seekable). If the fd is not seekable, mark it a "volatile" so that gnuplot doesn't try to reread it on "replot". 2015-08-21 Hans-Bernhard Broeker * docs/doc2tex.c (process_line): Improve passing of hyperlinks to pdftex. Allow both multi-line and single line format, for both external and internal hrefs. 2015-08-21 Ethan A Merritt * src/graphics.c (map_position_r): There is no way to indicate "no offset" as opposed to "offset 0", which was causing problems if "offset 0" was applied as axis coordinates on a log-scaled axis. Now in 2D "offset 0" is interpreted as no offset even for log-scaled axes. 3D offsets are still a sore point. Bug #1662 * src/datafile.c src/eval.c src/gp_types.h src/graphics.c sec/plot3d.c src/save.c term/svg.trm term/tgif.trm: Remove dead code. 2015-08-18 Ethan A Merritt * src/parse.c src/parse.h src/plot2d.c src/plot3d.c src/set.c src/unset.c demo/iterate.dem docs/gnuplot.doc: New special case of iteration in a plot command: plot for [i= : *] datafile ... This will iterate over all available data without generating an error message when the data is exhausted and without generating empty plots. It can be used to iterate over an unknown number of columns (e.g. for histograms), an unknown number of data blocks (e.g. plot for [i=0:*] datafile index i) or an unknown number of datafiles where the file name is generated from the iteration variable. 2015-08-18 Ethan A Merritt * src/qtterminal/QtGnuplotEvent.cpp src/qtterminal/qt_term.cpp: Make the error messages from a broken connection to gnuplot_qt less alarming. No change in functionality. See Bug #1554 * src/qtterminal/qt_term.cpp: Use fprintf(stderr, ...) instead of qDebug() << ... for the inboard driver. This allows allows Windows to catch error messages by the redefinition of fprintf in wtext.h. See Bug #1554 2015-08-14 Ethan A Merritt * term/dumb.trm src/stdfn.h: Handle UTF-8 encoding so long as each printed glyph occupies only one character cell. The code is specific to UTF-8; i.e. it does not handle other multi-byte encodings. Bug #1477 2015-08-12 Ethan A Merritt * src/datafile.c (df_generate_pseudodata): The sampling coordinates generated by pseudofiles '+' and '++' were passed as an ascii string, which truncated precision to 6 digits (default for format %g). Now pass in parallel the original (double) value so that no precision is lost. Bug #1650 2015-08-08 Ethan A Merritt * src/command.c src/command.h src/misc.c src/tables.c * docs/gnuplot.doc demo/break_continue.dem: New commands `break` and `continue` to short-circuit or terminate iteration of a `do` or `while` bracketed clause. 2015-08-07 "Jun T." * term/aquaterm.trm: Failure to save+restore original color was causing successive fill areas to become more and more transparent. Alsi, make background color pure white. 2015-08-05 Ethan A Merritt * src/parse.c (string_or_express): Prevent an empty string variable or expression from being interpreted as the magic names '' or "". E.g. file1 = 'real-file' file2 = "abc"[3:0] # any expression that evaluates to '' plot file1,file2 # plots file1 twice, no error message Bug #1660 2015-08-03 Ethan A Merritt * src/boundary.c src/graphics.c src/graphics.h src/save.c src/save.h src/set.c src/setshow.h src/show.c src/unset.c src/tables.c docs/gnuplot.doc demo/varcolor.dem: Support a separate set of line properties for errorbars. New command "set errorbars" is an expansion of "set bars" to include line characteristics. Save errorbars style (previously not saved). E.g. set errorbars lc "black" lw 0.75 * src/util.c (streq): Avoid buffer underrun on empty string. 2015-08-02 Akira Kakuto * src/qtterminal/qt_term.cpp: Fix #ifdef block syntax, modify string concatenation to make it acceptable in VS2010. 2015-08-02 Hans-Bernhard Broeker * src/Makefile.am (GNUPLOT_QT) [BUILD_QT]: New variable to communicate optionally transformed name of gnuplot_qt into main to main executable. (AM_CPPFLAGS) [BUILD_QT]: Pass GNUPLOT_QT to the preprocessor. (clean-demo) [BUILD_QT]: Fix copy-paste-edit oversight. * src/qtterminal/qt_term.cpp (GNUPLOT_QT): If not defined from outside, provide fall-back definition equal to previously hardcoded value. (execGnuplotQt): Untangle the conditionals a bit. Use new macro GNUPLOT_QT for the name of the outboard driver executable (fixes SF bug #1652) * term/pslatex.trm [!EAM_BOXED_TEXT]: Remove empty fallback definition for new entry function. Remove extraneous optional terminal API entry. 2015-08-01 Ethan A Merritt * src/command.c (history_command): protect against try_to_get_string failure in history commands. * src/parse.c (next_iteration): protect against user corrupting iteration variable. E.g. either of these used to segfault plot for [n=1:2] x lw n='foo' do for [n=1:2] { n="foo" } * src/plot2d.c src/plot3d.c src/set.c: Do not allow function plots to specifc an image style (with image/rgbimage/rgbalpha). * src/command.c (pause_command): protect try_to_get_string failure in 'pause' command. linux/windows/os2 code fixes are distinct. * src/command.c (plot_command splot_command): Fuzz-testing found cases where 'refresh' triggered program failure if there was not an active refreshable plot. * src/plot3d.c (eval_3dplots): 2015-05-07 code to accommodate images in hidden3d plots was being invoked even if hidden3d was not active. * src/set.c (set_key): protect against try_to_get_string failure. * src/axis.c (get_position_type): Revert recoding of get_position_type (2015-02-15). Fixes failure to keep axis setting if already known. Bug #1658 * src/command.c (new_clause {if|else|while|do}_command): Better bookkeeping for the depth of nesting in bracketed clauses. * src/plot2d.c (eval_plots) src/plot3d.c (eval_3dplots): Example of bug: plot for [i=1:3] T=sprintf("%d",i),i title T previous code evaluated the definition three times and only then drew [one] plot. After this fix the code executes define+plot three separate times. * src/graphics.c (place_parallel_axes): Ignore plots containing no data and hence no initialization information for parallel axis structures. Example of bug: plot 'foo' using 1:2:3:4:5 with parallel, 0 * src/command.c (toggle_command): Handle plots with no title. 2015-07-31 Ethan A Merritt Sync restored repository on SourceForge to in-progress commit tree from 2015-07-15. So far as I can see the only files affected are demo/html version updates. 2015-07-15 Ethan A Merritt * src/datafile.c (df_determine_matrix_info): The new (12 May 2015) mechanism for tracking matrix and image dimensions transposed the row and column counts in the case of plot $asciidata matrix with image Bug #1654 * demo/imageNaN.dem: Revise the demo to use non-square matrices so that it acts as a unit test for errors like the above. * demo/html/index.*: Update version and date 2015-07-15 Tatsuro MATSUOKA * src/eval.c (update_gpval_variables): Windows variant of linux/posix uname() information. Store in variables GPVAL_MACHINE e.g. i686, x86_64 GPVAL_SYSNAME e.g. linux, Windows GPVAL_BITS number of bits in a pointer * src/eval.c: Re-order code to support Windows non-C89 compilers (e.g. Visual Studio 2010) (thanks to Akira Kakuto). 2015-07-14 Ethan A Merritt * src/datafile.c (df_open): Bookkeeping for matrix dimensions in plot structure must not be applied inside a stats command. * src/graphics.c (process_image): Sanity check that input image data does not overflow the space allocated for it based on dimensions calculated when the input file was first opened. * src/plot3d.c (eval_3dplots): Skip empty input file cleanly, as we already do for 2D plots. * src/datafile.c (df_open): Filename of the form "+file.dat" must not be mistaken for special file '+'. 2015-07-13 Ethan A Merritt * src/wxterminal/wxt_gui.cpp term/cairo.trm term/wxt.trm: Change fixed-length fontname storage to dynamic (cairo + wxt terminals) to prevent crashes found by fuzzing. * term/hpgl.trm (set_font): Prevent same crash in hpgl/pcl5 terminal. * src/datablock.c: The storage in a zero-length datablock was not initialized. 2015-07-12 Ethan A Merritt * src/command.c (bind_command) src/mouse.c (bind_fmt): Very old bug (pre v4.0) in parsing the bind command, such that bind X" some longish command" would corrupt memory. The output format was bad also. Remove ancient files from active repository: lineproc.mac header.mac According to Changelog.4 this was done in 2013, but apparently not. 2015-07-11 Christoph Bersch * term/epslatex.trm: enable dashtype processing 2015-07-11 Hans-Bernhard Broeker * demo/imageNaN.dem: Fix broken command in demo. 2015-07-11 Ethan A Merritt * src/set.c (load_tic_series): Incorrect nesting of brackets caused "set xtics 0" to be accepted rather than rejected. This could lead to various bad outcomes (as found by fuzz-testing). * src/stats.c: More fuzz-testing. Possible double free if string_or_express returns via int_error(). * src/set.c: More fuzz-testing. Fix various places where failure to parse a string could lead to a double-free * src/axis.c (load_range): More fuzz-testing. "set [xyz]range" per se does not care if the range limits are extremely large, e.g. xrange [ -inf.0 : inf.0 ] but other places in the code do not handle this cleanly. Limit the range to +/- VERYLARGE * src/set.c (set_terminal) src/unset.c (unset_terminal) src/eval.c (del_udv_by_name): More fuzz-testing. If GNUTERM is defined but empty, or if a "set term " command fails during parsing, then the current terminal could be left as NULL. Now (I hope) we guarantee that at worst it is "unknown". * src/pm3d.c (pm3d_plot): More fuzz-testing. If no interpretable pm3d scan lines are found in a file the program could die on a divide-by-zero error before noticing the real problem. * src/set.c (set_style) src/show.c: "set style func parallelaxes" is not supported. "set style data parallelaxes" was not saved. 2015-07-08 Ethan A Merritt * term/estimate.trm: Initialization of enhanced text string buffer. Bug #1648 * src/set.c src/fit.c src/term.c src/parse.c term/cgm.trm term/gd.trm term/x11.trm: Fuzz-testing found a recurring pattern of fragile code: if (isstringvalue(c_token)) foo = try_to_get_string(); /* cannot fail */ Unfortunately it _can_ fail if an expression begins with a quoted string but is coerced into returning a numerical value. All of these sites require a specific check for (foo != NULL). Bug #1649 * src/eval.c (pop_or_convert_from_string): Some of the cases of bad syntax can also be caught inside try_to_get_string() itself. It doesn't hurt to add the check at this level also (belt+suspenders approach). Bug #1649 2015-07-05 Ethan A Merritt * src/wxterminal/gp_cairo.c (gp_cairo_set_dashtype): If the dashtype is changed then the current path must be stroked and reopened. 2015-07-03 Ethan A Merritt * configure.ac src/plot2d.h: Move the definition of SMOOTH_BINS_OPTION into plot2d.h, since configure.ac is not seen by the build system on MSWin. * demo/html/webify.pl: Default to pngcairo terminal rather than png. 2015-07-02 Ethan A Merritt * src/graph3d.c: An incorrect test for variable color was used for splots with impulses or points. Replace it with a shared correct test in check3d_for_variable_color. Note: Binary plots can still set an incorrect flag plot->pm3d_color_from_column but this flag is no longer sufficient to cause the observed problem. Bug #1644 2015-06-28 Hans-Bernhard Broeker * configure.ac: Check for existence of latex2html. * docs/Makefile.am (htmldocs/gnuplot.html): Do not try to build if latex2html was not found. (alldoc): Target 'ms' no longer exists. Test actual outputs made from gnuplot.ms instead. 2015-06-26 Ethan A Merritt * src/qtterminal/QtGnuplotItems.dpp (drawPoint): The "dots" style was inadvertantly made a no-op by change on 2015-02-15. * configure.ac demo/bins.dem docs/gnuplot.doc src/gp_types.h src/plot2d.c src/interpol.c src/interpol.h demo/random.dem: New data filter "bins" sorts the original data into equal width bins on x and then plots a single value per bin. The default number of bins is controlled by `set samples`, but this can be changed by giving an explicit number bins=N in the plot command. The new feature is marked EXPERIMENTAL in the documentation because we may decide to change the syntax to "smooth bins" or "filter bins" or something else. 2015-06-23 Ethan A Merritt * src/mouse.c (do_event) src/command.c (replotrequest): An attempt to zoom or scroll the output from a "test" command could produce useless error messages on the console. Now it will revert to the previous plot command, if any. Bug #1627 2015-06-20 Hans-Bernhard Broeker * src/util.c (gprintf): 'L' had broken if-else since 2010; 'B' was missing handling for power zero; 'B' had problem with excess precision. 2015-06-15 Daniel J Sebald * src/term.c (test_term): Use of unsigned terminal coordinates could cause overflow and jam up display of very small plots in x11 terminal. Bug #1626 2015-06-15 Ethan A Merritt * src/graphics.c (plot_boxes): Autocalculation of box widths was bad whenever a NaN data value was encountered. Now such data points are ignored, as they were in version 4. Bug #1623 2015-06-14 Daniel J Sebald * src/term.c (test_term): Dashtype sample labels displayed by `test` were off by one. 2015-06-05 Hans-Bernhard Broeker * src/fit.c (fit_command): If there's exactly one more range in a 'fit' command than there are independent variables, that last range has to be applied to the dependent variable (a.k.a. "function"). 2015-06-04 * configure.ac: Qt5 as build for Arch linux apparently requires compilation with -fPIC rather than -fPIE. Bug #1616 2015-06-03 Ethan A Merritt * src/util3d.c (draw3d_line_unconditional polyline3d_next): Do not reset line properties for each component line segment in a contour line. This improves the dash-pattern rendering for contours. Bug #1612 * src/parse.c (add_udv): Warn if too-long variable name is truncated. Bug #1526 2015-06-02 Ethan A Merritt * src/show.c: Clarify the current "set clip" settings in "show clip". * src/term_api.h src/graph3d.c: Send TERM_LAYER_3DPLOT to the terminal at the start of an splot. * src/qtterminal/QtGnuplotScene.{cpp|h} src/qtterminal/qt_term.cpp: If the current plot is 3D, do not update the status dispplay of x/y coordinates in response to a mouse move event. Bug #1605 2015-06-01 Daniel J Sebald * src/mouse.c (event_buttonrelease): Improved bookkeeping for which icon to display during mouse interaction. Bug #1617 * src/gplt_x11.c (reset_cursor): Do not reset the cursor of the currently active plot to default just before setting it to the correct cursor icon. Prevents flicker due to transient change of icons. Bug #1618 2015-05-31 Jun-ichi Takimoto * src/qtterminal/qt_term.cpp: Mouse coordinates must be passed to the clipboard as a QString. Bug #1602 (and earlier bugs) * src/qtterminal/QtGnuplotScene.cpp (mouseReleaseEvent): With the above fix in place, it is not necessary to lock out events during the doubleclick interval. 2015-05-30 Ethan A Merritt * src/qtterminal/QtGnuplotEvent.cpp src/qtterminal/QtGnuplotScene.cpp: Always respond to mouse button release event, even if the graph widget is busy or the mouse has left the window area. This prevents the event from being lost, causing the rotate-on-mouse-motion mode to get stuck. Bug #1602 * docs/doc2ms.c docs/windows/doc2html.c: Avoid finicky C90 compiler warnings. 2015-05-30 Hans-Bernhard Broeker * docs/Makefile.am (noinst_PROGRAMS): Add doc2wxhtml. (MOSTLYCLEANFILES, CLEANFILES): Split up into two lists, updated. (GNUPLOT_EXE): New variable, points to freshly built gnuplot executable. ($(GNUPLOT_EXE)): Build executable, if not already present. (grotxt, grodvi, grops): Turn into proper phony targets: depend on the file actually built, do nothing themselves. (troff, gnuplot.nroff, gnuplot.txt, gnuplot-groff.dvi) (gnuplot-groff.ps): Must depend on titlepag.ms in srcdir, not builddir. Use automatic make variables to simplify. Changed build of gnuplot.ms allows to remove complications for out-of-tree builds. (gnuplot.ms): Call doc2ms with new argument to ease out-of-tree builds. (gnuplot.tex, pdffigures, figures, nofigures, pdffigures.tex): Rules removed. Having different rules produce files of the same name, but with different content depending on the order of make targets built, cannot possibly work. (figures.tex, nofigures.tex): Keep two different versions of gnuplot.tex in different-named files. (pdf_figures, wxhelp_figures): New targets to handle generation of figures for use. (gnuplot.tex): Now just a link to (or copy of) nofigures.tex. (gnuplot.pdf, nofigures.pdf): Create pdffigures.tex on-the-fly, because its content cannot be assumed correct any other way. (dvi): Re-enabled. (gnuplot.dvi, gnuplot.pdf, nofigures.pdf, gpcard.dvi): Must depend on titlepag.tex and toc_entry.sty in srcdir, not builddir. (gnuplot.htb): Add necessary dependencies, some of them in srcdir. (doc2wxhtml_SOURCES, doc2wxhtml_CPPFLAGS): Use automake to build wxhtml, instead of spelling out compile rules ourselfs. * configure.ac (AM_INIT_AUTOMAKE): Up version requirement a bit, enable option subdir-objects. * docs/doc2ms.c (main, init): Add optional argument giving the location of titlepag.ms to be put into the file. This way the file can be processed by roff tools as-is, without having to patch it on-the-fly. 2015-05-30 Ethan A Merritt * term/js/gnuplot_svg.js: The test (typeof tspan_element == 'tspan') is now failing in multiple browsers. Comment it out for now. Bug #1340 2015-05-22 Ethan A Merritt * src/command.c src/command.h src/tables.c docs/gnuplot.doc: New command `printerr` works exactly as `print` except that output is always to stderr even if normal print output has been redirected using `set print`. 2015-05-19 Ethan A Merritt * src/axis.c src/axis.h: Update routines that were missed in the axis pointer revision. Remove GET_NUM_OR_TIME (no callers remain). Reorganize GET_NUMBER_OR_TIME, get_num_or_time to handle parallel axes. 2015-05-14 Ethan A Merritt * term/tek.trm (SIXEL_fillbox): Handle FS_DEFAULT * term/tek.trm (SIXEL_make_palette): A second call to make_palette() was failed to reset the state, leading to loss of all palette info. Now it overwrites any previous palette. Bugfix (e.g. heatmaps demo) 2015-05-13 Ethan A Merritt * src/qtterminal/QtGnuplotScene.* src/wxterminal/wxt_gui.* term/svg.trm term/js/gnuplot_svg.js docs/gnuplot.doc: EXPERIMENTAL support for a variant of hypertext that allows you to pop up an image on mouse-over. The initial implementation looks for a hypertext string of the form "image{{xsize},{ysize}}:filename". 2015-05-13 Shigeharu Takeno * src/command.c (pause_command): The windows "pause" command is sensitive to the locale encoding. Keep a translation table to convert between gnuplot's idea of the encoding and WIN32 encoding states so that strings output by "pause" are not corrupted. Bug #1580, Feature Request #415 2015-05-12 Ethan A Merritt * src/term_api.h src/gadgets.h: Move definition of struct t_image from term_api.h (no terminals use it) to gadgets.h (2D and 3D plots). * src/datafile.c src/graphics.c (process_image): Remove old code that tried to empirically determine grid size of an image based on 3D coords. Replace it with new bookkeeping in plot->image_properties.{ncols,nrows} that is initialized when the image data is read in. Bug #1607 2015-05-08 Ethan A Merritt * src/contour.c src/graphics.c src/internal.c src/interpol.c src/plot3d.c src/save.c src/set.c src/show.c src/tabulate.c: Whitespace/codestyle cleanup "if (FOO)" rather than "if( FOO )" * src/bitmap.c src/eval.c src/gadgets.c src/getcolor.c src/hidden3d.c src/plot3d.c src/save.c src/set.c src/show.c src/stats.c src/unset.c: Whitespace/codestyle "for (...) {" rather than "for( ... ){" 2015-05-07 Daniel J Sebald * src/graph3d.c src/graph3d.h src/graphics.c src/graphics.h src/plot2d.c src/hidden3d.c: Replace plot_image_or_update_axes(*plot, TBOOLEAN), which handled 2 options, with new routine process_image(*plot, t_procimg_action). * src/plot3d.c (eval_3dplots): Accommodate images in hidden3d plots in a way analogous to the current handling of pm3d surfaces. A phantom surface is constructed consisting of a single rectangle that overlays the image, and that phantom is included as surface in the hidden3d sort/divide/occlude processing. 2015-05-05 Ethan A Merritt * src/hidden3d.c (build_networks): In hidden3d mode do not draw the surface if the keyword 'nosurface' is present (set the linetype internally to LT_NODRAW). Normally this keyword would mean "draw only the data lines, not the isosampled grid lines", but that makes little sense for a hidden3d surface. This provides a way to draw only the contours of a hidden3d contour plot. See Bug #1603 2015-05-03 Hans-Bernhard Broeker * term/caca.trm: Insert missing include of . * src/wxterminal/wxt_gui.cpp: Insert missing include of . (wxt_waitforinput): Add note about missing check for HAVE_SELECT. 2015-05-02 Hans-Bernhard Broeker * src/Makefile.am (getcolor_x11.o): Use Automake macros to control whether tool calls are echoed or not. * docs/Makefile.am (LUA_HELP, allterm.h, troff, gnuplot.nroff) (grotxt, grodvi, grops, gnuplot.ms, htmldocs/gnuplot.html) (pdffigures.tex, figures, nofigures, gnuplot.pdf, gnuplot.tex) (gnuplot.dvi, gpcard.dvi, gnuplot.ps, gpcard.ps, gnuplot.hlp) (gnuplot.gih, allgih, gnuplot.htb, wxhelp/wgnuplot.html) (wxhelp/doc2html.o, wxhelp/doc2html$): Use Automake macros to control whether tool calls are echoed or not. (gnuplot.texi gnuplot-eldoc.el): Move compilation of ELisp out of here. There was already a separate rule for it. (${ELCS}, gnuplot.info, install-info, gnuplot.ipf, gnuplot.rtf) (gnuplot.rnh, check-local, clean-local, install-vms): Use Automake macros to control whether tool calls are echoed or not. * docs/gnuplot.doc: Blank-only line fixed. 2015-04-30 Ethan A Merritt * src/hidden3d.c: If a hidden3d plot included a "with image" component, the hidden3d processing was tracking individual pixels as points. This slowed everything down without accomplishing anything useful. Now we ignore image plots altogether in the hidden3d code. * demo/hidden2.dem: Add a demo/test for hidden3d processing of image plots. It doesn't actually work at this point, but is useful as a test case for new code. * src/axis.c (axis_init) src/axis.h src/plot2d.c: Funnel existing macros AXIS_INIT2D and AXIS_INIT3D into a single routine axis_init(). Whatever reason there was originally to distinguish the 2D and 3D cases is no longer applicable in version 5. 2015-04-29 Ethan A Merritt * Makefile.maint docs/pdffigures.tex docs/Makefile.am: Try to reduce churn during "make check" "make pdf" etc by removing dvi as an auto-generated target and defaulting to documentation with figures. 2015-04-27 Ethan A Merritt * src/graph3d.c (do_3dplot): Turning on "hidden3d" caused an off by one error in assigning color to contours levels. Bug #1603 * src/command.c (do_line): If an input line starts with a shell escape (e.g. '!' for linux) bypass first stage processing (df_tokenise) of the remainder of the line. NB: This means that text following a comment character is now passed to the shell rather than being stripped. Bug #1517 2015-04-24 Daniel J Sebald * src/misc.c (parse_fillstyle): Additional sanity checks when parsing fillstyle options. Bug #1597 2015-04-22 Ethan A Merritt * src/fit.c: Fit code really cares about MAX_NUM_VAR, not MAXDATACOLS. 2015-04-22 Ethan A Merritt * src/datafile.c (f_stringcolumn f_columnhead df_set_key_title): columnhead(FOO) could return strange results for FOO > 999 or undefined or otherwise invalid. Now we extend the range of valid column number to 9999 and return 0 for invalid or out of range FOO. Bug #1596 2015-04-21 Ethan A Merritt * configure.ac src/axis.c src/axis.h src/plot2d.c src/set.c src/unset.c: Switch to dynamic allocation of parallel axis structures. The count of currently allocated structures is kept in global num_parallel_axes. All storage is released by "reset". At this stage there still remains a limit on how many parallel axes you can use in practice because each one consumes a slot in the `using` specifier (limited by MAXDATACOLS). 2015-04-20 Karl Ratzsch * src/term.c (test_term): Show terminal's native dashtype support in the `test` command output. 2015-04-20 Jun Takimoto * src/mouse.c (apply_zoom): axis->formatstring and axis->ticfmt are now dynamically allocated and must be saved and restored when zooming. 2015-04-18 Ethan A Merritt * src/axis.c src/axis.h: axis_defaults[PARALLEL_AXES] no longer needed. * src/set.c src/show.c src/unset.c: Clean up a few references to PARALLEL_AXES that should instead test for a more restrictive set of axes. * src/axis.c src/axis.h: Simplify implementation of axis_name(). 2015-04-17 Ethan A Merritt * src/axis.c src/axis.h: Second stage of moving parallel axis support into dynamically allocated storage. Move the parallel axis structures into a separate array and shrink the main axis_array[] accordingly. * src/save.c src/set.c src/unset.c: Split various loops over the full set of axes into two separate loops for (axis=0; axis * src/color.c (set_color): Some terminals (pdfcairo, post) produced invalid output if given NaN as a gray value in term->set_color(). Others variously ignored it, replaced it with black, or gray=0. Now we trap NaN in the core code and substitute a request for background color. Note: I'd rather substitute with a fully transparent color, but not all terminals handle transparency. Bug #1595 * src/axis.c src/axis.h: Initial stage of moving parallel axis support into dynamically allocated storage. Here we introduce a new global AXIS *parallel_axis = &axis_array[PARALLEL_AXES] For now it points to the existing storage. Later it will become dynamic. * src/graphics.c (plot_parallel place_parallel_axes) src/set.c (set_paxis) src/show.c (show_paxis): Index or point to parallel axis structures relative to parallel_axis[] rather than relative to axis_array[]. * src/plot2d.c (get_data) src/save.c (save_set_all) src/unset.c (unset_command): Index or point to parallel axis structures relative to parallel_axis[] rather than relative to axis_array[]. * src/unset.c (free_axis_struct): New routine to free fields in an axis structure that is about to be reinitialized or deleted. 2015-04-15 Hans-Bernhard Broeker * src/show.c (show_paxis): Simplify call to save_prange(); (show_range, show_link): Call save_prange() instead of deprecated save_range(). * src/save.c (save_range): No longer called. Removed. (save_set_all): Replace calls to save_range() by equivalent ones to save_prange(). * src/stdfn.h (FPRINTF, DEBUG_WHERE): Make inactive definitions more similar to active ones, for the benefit of people who don't like to use {} around their if() bodies. * src/save.h: Remove prototype for save_range. 2015-04-15 Ethan A Merritt * src/graphics.c (plot_parallel place_parallel_axes): Revise to use axis pointers rather than AXIS_INDEX. * src/unset.c: Avoid using AXIS_INDEX where practical. Limit initialization of grid/labels/etc to the axes that need it. * demo/fit.dem: Exercise "set fit covariancevariables" in the demo. * src/save.c: Avoid using AXIS_INDEX where practical. 2015-04-10 Daniel J Sebald * term/tkcanvas.trm: Fix problems handling an empty font family name in a requested font string, as in set term tkcanvas font ",15" Bug #1591 2015-04-09 Ethan A Merritt * src/show.c: Revise internal routines to use axis pointers rather than AXIS_INDEX. 2015-04-08 Ethan A Merritt * src/fit.c (setvarcovar): Allocated size of string for FIT_COV_*_* variables was too small, corrupting the allocation heap. * src/fit.c (regress_finalize): Show results in the log file even if the "quiet" option suppresses screen output. 2015-04-07 Ethan A Merritt * src/term.c (termp_apply_lp_properties): Fix incorrect assumption that dashtype 1 is always solid and already set by default. Bug #1588 * term/emf.trm (EMF_linetype): Two linetypes (LT_SOLID LT_AXIS) have an intrinsic dash pattern. Bug #1588 * src/term.c (test_term): Use same sequence of setting line properties linewidth/linetype/dashtype in the "test" command as in the core code. * demo/imageNaN.dem: Illustrate NaN generated by negative values on a log-scale palette mapping. * src/set.c src/term.c: Adjust the new "set mono" option so that "set term xxx mono" is not persistent. I.e., it doesn't leave "set mono" in effect after the next terminal change. This makes it more like the version 4 mono terminal option. "set mono" itself is still persistent. 2015-04-04 Hans-Bernhard Broeker * src/term_api.h (DEFAULT_MONO_LINETYPES): Empty initializer is not allowed. 2015-04-03 Ethan A Merritt * src/axis.h (ACTUAL_STORE_WITH_LOG_AND_UPDATE_RANGE): If the value being stored to a log-scaled axis is negative, the stored value should be NaN rather than the un-logged original value. * src/plot2d.c (get_data): But even that doesn't help if UNDEF_ACTION re-stores the orginal value, so don't do that. Together these changes fix the problem that negative values mapped onto a log-scaled cbaxis produced a valid (but wrong) color rather than being treated as NaN. 2015-04-02 Karl Ratzsch * docs/gnuplot.doc: Document the C library routines used to parse numerical constants in commands and expressions. Integer constants are read using strtoll(); floating point constants are read using atof(). 2015-04-02 Hans-Bernhard Broeker * compile: Add script required by automake. * demo/plugin/Makefile.am (demo_plugin_so_SOURCES): Add gnuplot_plugin.h. (EXTRA_DIST): Add plugin.dem. * demo/Makefile.am.in (Makefile.am): Subdir 'plugin' has a Makefile.am, so it should not be in EXTRA_DIST. 2015-03-29 Ethan A Merritt * src/gadgets.c src/gadgets.h src/set.c src/setshow.h src/tables.c src/tables.h src/term_api.h src/term.c src/unset.c term/x11.trm src/show.c docs/gnuplot.doc: New commands {un}set monochrome {linetype N } set color (same as "unset mono") Maintain a set of monochrome linetypes (all black with varying dot- dash pattern and/or width) in parallel with the default set of color linetypes. Switch between the two sets using "set mono" or "set color". Terminal types that used to provide a separate "mono" keyword now trigger "set mono" as appropriate. For example, "set term pdf mono" is equivalent to "set term pdf; set mono". Six default monochrome linetypes are pre-defined. These do not exactly duplicate the idiosynchratic mono linetypes of various pre-version 5 terminals (be cairo cgm emf fig pdf post ...). Some further adjustment for individual terminals may be needed. 2015-03-27 Ethan A Merritt * src/save.c src/save.h src.show.c: Axis pointer conversion of save_range, save_tics, save_num_or_time_input. 2015-03-24 Erik Olofsen * term/tek.trm: RGB + palette support for sixel terminal. The vt100/vt340 sixel emulator is limited to 16 distinct colors per plot but other emulators may permit more. 2015-03-24 Ethan A Merritt * term/fig.trm term/epson.trm term/tek.trm: Remove unused variables. 2015-03-24 * src/mouse.c src/plot2d.c src/wxterminal/gp_cairo.c: Incorrect argument type to abs() or fabs(). * src/stats.c (analyze_sgl_column): Incorrect truncation of double to int while calculating absolute deviation. Bug #1584 2015-03-24 Tatsuro MATSUOKA * src/command.c (pause_command): Work around a bug seen for mingw + SJIS encoding. 2015-03-23 Ethan A Merritt * term/fig.trm: Preload user-defined linetype colors and gnuplot's set of named colors so that they are available in fig plots. 2015-03-22 Ethan A Merritt * term/cairo.trm: The cairolatex terminal should not set the flag TERM_ENHANCED_TEXT since latex markup is not the same as gnuplot's enhanced text mode. This does not hurt plotting per se, but it causes the "test" command to emit a non-latex string. * src/unset.c: Revise internal routines unset_tics() unset_minitics() and unset_range() to use axis pointers rather than AXIS_INDEX. 2015-03-21 Hans-Bernhard Broeker * demo/plugin/.cvsignore: Added. * config/cygwin/.cvsignore: Added. * config/watcom/.cvsignore: Ignore two more files. * docs/Makefile.am (clean-local): $(LUA_HELP) file has to be cleaned, too. 2015-03-19 Ethan A Merritt * src/boundary.c (do_key_sample) src/graph3d.c src/graphics.c src/graphics.h (check_for_variable_color): The key sample for plots with filled objects (boxes, circles, ellipses, etc) and "lc variable" was drawn in some non-obvious color not necessarily present in the plot. Now we guarantee that the key sample is drawn using the color of the first point in the plot. 2015-03-17 Ethan A Merritt * src/set.c: Revise many internal routines in set.c to use axis pointers rather than AXIS_INDEX. 2015-03-14 Ethan A Merritt * src/axis.h src/plot2d.c: Revise macros AXIS_INIT2D and (the big one) ACTUAL_STORE_WITH_LOG_AND_UPDATE_RANGE to use axis pointers rather than AXIS_INDEX. This is mostly invisible to the higher-level code. * src/axis.h src/axis.c src/set.c: Revise load_range() to take axis pointers. Export get_num_or_time(). * src/axis.h src/axis.c src/plot2d.c src/set.c src/datafile.c: Revise add_tic_user() to take axis pointer rather than AXIS_INDEX. 2015-03-13 Ethan A Merritt * src/axis.c src/axis.h src/datafile.c src/plot2d.c: Revise axis_unlog_interval() to use pointers rather than AXIS_INDEX. * src/axis.c src/axis.h src/graphics.c: Revise old routine axis_revert_range(AXIS_INDEX) to be a wrapper for a new routine axis_invert_if_requested(struct axis *). * src/axis.c: Change many call sites to use the new macros and new routine variants taking an axis pointer rather than an AXIS_INDEX. This set of changes is purely internal to code in axis.c. * src/axis.c src/axis.h src/boundary.c src/graphics.c src/mouse.c src/plot3d.c: Revise make_tics(), copy_or_invent_formatstring(), and setup_tics() to use axis pointers rather than AXIS_INDEX. * src/unset.c: Fix memory leak (linked axis function) on reset. 2015-03-12 Ethan A Merritt Begin bottom-up revision of axis handling routines to use pointers rather than array indices. * src/axis.h: Modify the template for axis tic-generation callbacks from callback(AXIS_INDEX, ...) to callback(struct axis *, ...) * src/axis.c (widest_tic_callback): Modify widest_tic_callback to match the new template, although it needs no axis information * src/graphics.c (xtick2d_callback ytick2d_callback) src/graph3d.c (xtick_callback ytick_callback ztick_callback): Modify 2D and 3D axis callbacks. * src/color.c (cbaxis_callback): Modify color axis callback. * src/axis.c (gen_tics): Modify the call sites for all of these. Next level up: Modify gen_tics() and all the places that call it. old: gen_tics(AXIS_INDEX axis, callback) new: gen_tics(struct axis *this, callback) * src/axis.h src/axis.c (gen_tics): * src/boundary.c src/color.c src/graph3d.c src/graphics.c: call sites 2015-03-11 Ethan A Merritt Gradually move all axis-related information into the axis structure itself rather than leaving it spread out among multiple arrays indexed in parallel. The rationale is to allow routines that process this information to operate from a pointer to (struct axis) rather than from an array index. This will allow dynamically allocated axis definitions. * src/axis.c src/axis.h src/unset.c: Part 1 - Keep a copy of the axis index (e.g. SECOND_Y_AXIS) in the axis structure. This may eventually go away again, but for now it allows calling a routine that wants the axis index from a routine that works from an axis pointer. * src/axis.c src/axis.h: Part 2 - Replace the separate arrays timelevel[] and ticstep[] by moving their respective contents into new fields axis->timelevel and axis->ticstep. * src/axis.c src src/axis.h src/unset.c: Part 3 - Replace the static array ticfmt[AXIS_ARRAY_SIZE][MAX_ID_LEN+1] with a dynamically maintained field axis->ticfmt. * src/axis.c src/axis.h: Part 4 - Reduce length of axisname_tbl[] to contain only the axes that use it (i.e. no individual parallel axis entries). * src/axis.h: New versions of axis data macros that use axis pointers. New macro axis_{un}do_log(struct axis *,value) analogous to AXIS_{UN}DO_LOG(AXIS_INDEX, vlaue) New macro axis_map(struct axis *, variable) analogous to AXIS_MAP(AXIS_INDEX, variable) New macro tic_scale(ticlevel, struct axis *) analogous to TIC_SCALE(ticlevel, AXIS_INDEX) 2015-03-08 Ethan A Merritt * src/datafile.c: The code tracking matrix column/row headers tried to extract the relevant string from the wrong internal array. Bug #1575 2015-03-06 Allin Cottrell * src/wxterminal/gp_cairo.c: Prevent free() of a string constant. 2015-03-05 Ethan A Merritt * src/term_api.h src/term.c src/graphics.c term/estimate.trm: New routine estimate_plaintext(char *enhancedtext) returns a string stripped of all enhanced text markup. Use this to provide plain text titles in output files even though the plot title itself contains markup characters. Bug #1573 * demo/hypertext.dem: Simplify output file (attach hypertext to only one set of points). 2015-03-02 Ethan A Merritt * src/tables.c src/graphics.c (plot_filledcurves) docs/gnuplot.doc: The "y1=foo" and "y2=foo" options to the filledcurves style are confusing, as both operate on the current plot's y axis regardless of whether it is y1 or y2. Rename the option as "y=foo" and remove mention of the older y1= and y2=. All three are accepted on input. Bug #1568 2015-02-26 Ethan A Merritt * src/fit.c src/fit.h src/set.c src/save.c src/show.c: "set fit nolog" * term/tek.trm: Remove SIXEL_set_color() terminal entry. This function does not perform the operation expected by the core code (change the current color for lines/texts/points/etc). Instead it redefines one of 16 linetypes. In gnuplot version 5 this causes most objects to be drawn in black. Removing the entry allows the sixel terminal to work more or less like a fixed color 16-pen plotter. Bug #1556 2015-02-24 Mojca Miklavec * configure.ac m4/apple.m4 term/aquaterm.trm: Correct "Aquaterm" to "AquaTerm" (framework name is case sensitive). 2015-02-23 Ethan A Merritt * src/axis.c: Special case code for axis tickmarks in polar plots was incorrectly being applied to all axes, not just the polar axis. Bug #1569 2015-02-18 Shigeharu Takeno * term/gd.trm (PNG_vector): Prevent accummulated round-off error in dotted line emulation by using (double) variables to track incremental coordinates. Bug #1549 2015-02-18 Ethan A Merritt * src/term.c (term_apply_lp_properties do_point load_linetype): Restore old (version 4) behavior of terminals such as hp pen plotter and pbm that do not support user-selected colors. Bug #1556 2015-02-15 Ethan A Merritt * src/axis.h src/axis.c src/set.c: Do away with 4 utility routines {set|get}_writeback_{min|max} that did nothing but provide a round-about way to access the next field in a structure that is already active. E.g. axis->min = get_writeback_min(axis) becomes axis->min = axis->writeback_min. * src/boundary.c src/color.c: Remove dead code (commented-out extra parameter to gen_tics()). 2015-02-15 Hans-Bernhard Broeker * src/axis.h (AXIS_INDEX): Change value of NO_AXIS to -2. Make AXIS_ARRAY_SIZE an enum entry, again. (NUMBER_OF_MAIN_VISIBLE_AXES): New name, to be used instead of LAST_REAL_AXIS. (LAST_REAL_AXIS): Removed. (AXIS_IS_SECOND, AXIS_IS_FIRST): New macros to formalize checking if an axis is among the second or first axes, respectively. (AXIS_MAP_FROM_FIRST_TO_SECOND, AXIS_MAP_FROM_SECOND_TO_FIRST): New macros to centrally define how to switch from a first axis to its corresponding secondary axis, and vice versa. (axis): Change type of linked_to_primary from bool to an actual pointer to the linked axis struct. (ACTUAL_STORE_WITH_LOG_AND_UPDATE_RANGE): Missing parentheses around macro argument use. Use linked_to_primary as a pointer. * src/axis.c (setup_tics): Cloning takes only one argument now. (axis_output_tics): Rely less on axis array layout. (some_grid_selected): Use new axis range macro. (get_position_type): Use correct type for axis index argument. (get_position_default): Use correct type for localaxis index variable. Catch attempted use of z2 axis. (clone_linked_axes): Use only one argument. The other is implied anyway. Do some sanity checks first up. * src/command.c (link_command): Initialize local variables. Axis link information is a pointer now. Concentrate knowledge about links between axes more into axis methods. * src/eval.c (eval_link_function): Use correct type for axis index argument. * src/gplt_x11.c (plot_struct): Use new axis range name. (byteswap): Define variable more locally. (exec_cmd): New local pointer to make code easier to understand. Use new axis range name. * src/graphics.c (adjust_offsets): Concentrate knowledge about links between axes more into axis methods. * src/plot2d.c (eval_plots): Concentrate knowledge about links between axes more into axis methods. * src/save.c (save_set_all): Use new axis range name. (save_range): linked_to_primary is a pointer now. * src/show.c (show_zeroaxis): Use new macro about distinction between first and second axes. * src/unset.c (unset_logscale): Use new axis range name. (reset_command): linked_to_primary is a pointer now. * term/x11.trm (X11_text): Loop over AXIS_INDEX should use that type for the index variable. Use new axis range name. * docs/doc2tex.c (section, puttex): Correct use for functions on plain char requires a cast to unsigned char. * docs/doc2ms.c (section): Correct use for functions on plain char requires a cast to unsigned char. * src/set.c (set_dummy): Correct use for functions on plain char requires a cast to unsigned char. (set_degreesign): Avoid -Wunused. (set_logscale): Use modified axis range name. (set_range): Concentrate knowledge about links between axes more into axis methods. 2015-02-13 Ethan A Merritt * src/gadgets.c (apply_pm3dcolor): Variable color specifier "palette cb" failed to handle log-scaling of the color axis. Bug #1560 * src/mouse.c (load_mouse_variables): MOUSE_BUTTON was not set correctly. 2015-02-11 Erik Olofsen * configure.vms: update compile-time variables to include HAVE_VFPRINTF and MAX_PARALLEL_AXES 2015-02-09 Ethan A Merritt * src/boundary.c (do_key_sample_point) src/graphics.c (do_plot) src/graph3d.c (do_3dplot): Until now "with labels" plots could have a point associated with each label but the point style was not indicated in the key. Now it is. * src/qtterminal/QtGnuplotIterms.cpp (drawPoint): Don't draw an extra dot at the nominal origin of each point symbol. 2015-02-06 Ethan A Merritt * src/interpol.c (cp_implode): The monotonic cubic spline code does not expect or handle multiple curves in a single data set. Thus cp_implode should not set the total number of averaged points to more than the total corresponding to the first curve. Bug #1548 2015-02-03 Ethan A Merritt * src/plot2d.c: Allow "noautoscale" keyword to appear anywhere in the plot command, not just immediately after the using specifier. * src/interpol.c: Rework "smooth kdensity" so that 1) it now handles logscale on y 2) it treats xrange as other plot styles do; in particular it no longer limits the x range to that of the points making up the kernel. 2015-02-02 Shigeharu Takeno * docs/term-ja.diff docs/gnuplot-ja.doc: Sync Japanese documentation to doc version 1.935 2015-02-01 Ethan A Merritt * src/graphics.c (plot_betweencurves): This routine now handles both the 3-column variant of filledcurved ("between") and the y1= or y2= variants. In order that various lower level routines do not get confused, set the same options flag FILLEDCURVES_BETWEEN for all of these. (Bug fix) 2015-01-27 Ethan A Merritt * src/plot2d.c src/show.c docs/gnuplot.doc: Report maximum number of parallel axes in "show version long". Enforce this limit when plotting. Document the limitation. * src/util.c (gprintf): The "%h" format want a proper multiplication sign rather than 'x' when possible. We already do this for UTF8 and CP1252, now add support for iso_8859_* encodings. * src/save.c: Use "set xyplane relative" rather than the deprecated "set ticslevel". 2015-01-24 Ethan A Merritt * src/command.c (test_palette_subcommand): Apply numeric locale to the $PALETTE datablock created by the "test palette" command. * term/pslatex.trm: Separation of linetype/dashtype in version 5 means that term->set_color should not be turned into term->linetype. Bug #1545 * src/term.c (term_test): Fix failure to save/restore arrow style. Use LT_SOLID for box around central text. Bug #1546 2015-01-20 Ethan A Merritt * src/graphics.c: Restore several lines of code that were inadvertantly lost in the revision to filledcurve processing (2015-01-16). * src/graphics.c src/help.c src/hidden3d.c src/interpol.c src/color.c src/graph3d.c: Back in 2001 some comparator functions passed to qsort were made non-static to work around a bug in HPUX. The reason for that is long gone, so make them static as they ought to be. 2015-01-19 Ethan A Merritt * src/boundary.c src/set.c src/save.c: set/save/apply text justification to key title. * src/command.c src/datablock.c src/eval.c src/eval.h src/fit.c src/gp_types.h src/internal.c src/misc.c src/mouse.c src/parse.c src/plot2d.c src/plot3d.c src/plot.c src/save.c src/set.c src/show.c src/standard.c src/stats.c src/term.c src/util.c term/lua.trm: Move the "undefined" status flag from udvt_entry->udv_undef into the value itself (udvt_entry->udv_value.type == NOTDEFINED). This prevents coding mistakes which would leave a data type in the value even though the variable itself is marked undefined. Also it allows tracking or setting the undefined status in routines that are passed a pointer to a value rather than a udvt_entry. 2015-01-16 Ethan A Merritt * src/tabulate.c: Tabular output of time/date values should check the new flag output flag (tictype) rather than the input flag (datatype), and fall back to a generic time format if the axis doesn't have one. * src/time.c (gstrptime): If the time format explicitly includes day, month, or year then always do sanity checking on the interpreted date. Return NULL if the sanity check fails. Previously the sanity check was only done if that field of the format was evaluated (i.e. it was not done if input garbage caused parsing to terminate early), and zeros were returned in the time structure with no indication of failure. This "failure silently returns zero" behaviour is still kept for hour, minute, and second input fields. * demo/timedat.dat: Add a line of headers to exercise the new sanity checks in gstrptime. * src/graphics.c src/plot2d.c: Fix breakage in plot style filledcurves {above|below} y1= 2015-01-15 Ethan A Merritt * src/graphics.c (plot_filledcurves): Reevaluate variable fill color for every polygon in the input stream to "with filledcurves". Bug/Feature Request #411 * src/gadgets.c (apply_pm3dcolor) src/term.c (load_linetype): Remove special-cased test for monochrome terminals that can lead cause a failure to update the linecolor in version 5 (e.g. background->black). Bug fix 2015-01-13 Ethan A Merritt * src/datafile.c (df_read_matrix) demo/matrix_index.dem: Handle named indices (extra line in data file containing name of subsequent data matrix) for nonuniform ascii matrix data. Bug #1538 * src/stats.c: The special code path to handle ascii matrix data was not correct. Fortunately the general case code works so long as the data is recognized as matrix data. This removes the broken code path. 2015-01-10 Ethan A Merritt * src/save.c (save_tics): The order in which tics options were saved could produce illegal syntax in the save file. Bug fix * term/cairo.trm (cairotrm_put_text): For some reason the bold/italic flags can become stuck after printing text. This patch fixes it by restoring the original terminal font after printing any enhanced text string, but I do not understand why this would be necessary for the cairo terminals when other terminals do not require it. Test case: set key title "{/:Bold Hello}"; plot sin(x) title "World" Bug fix 2015-01-10 Ethan A Merritt * term/gd.trm: Ensure that the brush used for drawing dotted lines is reinitialized for each new line. Bug #1516 2015-01-10 Karl Ratzsch * docs/gnuplot.doc: Clarify sampling used by '+' special file. 2015-01-10 Christoph Bersch * src/multiplot.c demo/heatmaps.dem demo/layout.dem docs/gnuplot.doc: Fix inconsistencies in the margin and spacing options for "set multiplot layout". Allow using character or screen units. Make the character/screen keyword sticky; i.e. it applies to all four values in the command `set multiplot margins screen 0.1,0.9,0.9,0.1` Issue appropriate errors or warnings if margins and spacing aren't set together. Update and expand the documentation. 2015-01-09 Ethan A Merritt * src/datafile.c (df_determine_matrix_info): Apply numeric locale when reading ascii matrix data. Bug #1536 2015-01-07 Ethan A Merritt * configure.ac: Qt5 check via pkg-config --variable=host_bins seems fragile; revise to work on two different test machines. * src/graphics.c src/graphics.h src/plot2d.c: Improved handling of boxplot data with multiple "factors" (i.e. category labels). The data is now sorted only once, rather than once per factor. 2015-01-07 Achim Gratz * configure.ac: Qt5 check via pkg-config should use --variable=host_bins rather than --variable=exec_prefix 2015-01-06 Ethan A Merritt * src/boundary.c src/gadgets.h src/graph3d.c src/save.c src/set.c src/show.c src/unset.c: Track font and enhanced flag for the key title separately from those for the key entries. Bug #1525 * docs/gnuplot.doc src/set.c src/show.c: In 5.0.0 the set margin command interpreted 4 values in the order set margin , , , but this order in non-intuitive and conflicts with the order in other commands (e.g. set multiplot layout). CHANGE this to set margin , , , Note that the code now sanity checks that (top > bottom), so this change will not be noticed for margins given in screen coordinates. 2015-01-06 Ethan A Merritt * src/graphics.c src/graphics.h src/plot2d.c: Simplify the boxplot data handling. Collapse the separate filter_boxplot_factor() and filter_boxplot() into a single routine with a single supporting routine compare_ypoints(). Points are now sorted using the "factor" as a primary key, rather than using a separate pass to overwrite all y values to VERYLARGE if the factor does not match. Inspired by a patch from Jouke Witteveen Bug #1532 2015-01-04 Jouke Witteveen * src/plot2d.c (check_or_add_boxplot_factor) src/gadgets.h: When the requested "factor" column of boxplot data is missing or empty, the y value was being stored instead. Now we store DEFAULT_BOXPLOT_FACTOR (-1) instead, since this can never be mistaken for a label array index. EAM: Store this factor index in z rather than ylow. This prepares for a later patch to get rid of repeated swapping of y and ylow values rather than simply looking at the stored index directly. Bug #1532 2015-01-03 Jouke Witteveen * src/plot2d.c (check_or_add_boxplot_factor): Distinguish between boxplot category labels where one is a leading substring of the other. Bug #1532 2015-01-01 Ethan A Merritt * src/set.c src/boundary.c src/graph3d.c: Add a sanity check to ensure that the top margin is above the bottom margin. This corrects for possible user confusion or error in specifying on one line set margins , , , # (wrong order) 2014-12-30 Ethan A Merritt * src/qtterminal/qt_term.cpp (qt_atexit): Sanity check. 2014-12-28 Bastian Maerkisch * docs/titlepag.ms: Update to version 5. * docs/gnuplot.doc: groff tables for stats command. Several groff syntax fixes and minor layout tweaks. * config/mingw/Makefile: New targets grops and gropdf. * config/config.os2 config/makefile.os2: Update to version 5. * src/term_api.h src/os2/gclient.c: Eliminate compiler warnings. * src/wxterminal/wxt_gui.cpp: Use cairo_show_page() rather than cairo_surface_show_page() 2014-12-26 Bastian Maerkisch * src/qtterminal/qt_term.cpp: Remove dead code. Avoid implicit casts to unsigned int. 2014-12-24 Bastian Maerkisch * src/win/wgraph.c (drawgraph) src/win/wgdiplus (drawgraph_gdiplus): Failure to re-initialize the font name and size for enhanced text. Bug #1529 2014-12-24 Shigeharu Takeno * src/win/wgdiplus.cpp (SetFont_gdiplus): Font names may be given in current encoding. Patch #712 2014-12-23 Hans-Bernhard Broeker * src/win/wgnuplot.mnu: Parameter input for atan2() was wrong. SF patch #1530 by Shigeharu Takeno. * src/win/wgnuplot-ja.mnu: Dito. 2014-12-21 Daniel J Sebald * src/wxterminal/wxt_gui.cpp: Track the most recent directory used by the export-to-file widget. 2014-12-19 Ethan A Merritt * src/wxterminal/wxt_gui.cpp (wxtPanel::wxt_cairo_create_bitmap): Another fix for the wxt terminal linked against wxWidgets 3.0. wxWidgets + wxgtk version 2.8 were fine with the sequence delete cairo_bitmap; cairo_bitmap = new wxBitmap(*image); but version 3.0 hits a use-after-free that can be attributed to a UI-triggered event invoking OnPaint(), which tries to access the old bitmap before the new one has been assigned. Omitting the delete "cures" this, but then there is a memory leak. Empirical tests seem to show that it suffices to defer the delete operation until after the assignment operation. A proper interlock might be better yet. 2014-12-18 Ethan A Merritt * src/datafile.c (df_parse_string_field): If an input data file uses Mac OS-9 format with \r as a line terminator, the entire file is mis-recognized as one very long line. If there are nevertheless recognizable field separators, the code to split out string fields into separate saved storage goes crazy, consuming huge amounts of memory. Detect and warn if an input string field exceeds MAX_LINE_LEN. Bug #1445 (also see Bug #1355) * src/command.c (do_line): Report error if a "load" file fails to close an open bracketed clause. Bug #1522 2014-12-18 Hans-Bernhard Broeker * term/win.trm (WIN_set_font): Revert incorrect change from strncpy() to safe_strncpy(). 2014-12-16 Hans-Bernhard Broeker * configure.ac: Added copy of former configure.in, updated to preferences of autoconf-2.69, automake-1.14. * configure.in: Dropped * mkinstalldirs, missing, install-sh, depcomp: Update from recent autoconf/automake. * src/syscfg.h (RETSIGTYPE): Note that former fall-back definition is now hardwired. 2014-12-16 Bastian Maerkisch * win/gnuplot.iss: Change working directory of shortcuts to current users's document folder. Works on Vista and upwards. Bug #1415 2014-12-15 Bastian Maerkisch * demo/kdensity.dem: End demo with pause / reset * config/mingw/Makefile: Convert eol style of text files to CRLF during install. Bug #1520 2014-12-15 Ethan A Merritt * src/mouse.c (do_event) src/gplt_x11.c src/wxterminal/wxt_gui.cpp src/qtterminal/QtGnuplotWidget.cpp: Distinguish auto-generated replot events (e.g. replot-on-resize) from user-generated replot events ('e' hotkey or toolbar replot widget). Use GE_replot for the former, GE_keypress('e') for the latter. Reject auto-generated replot requests while multiplot is active. (wxt was already doing this; now we extend it to qt and x11 also). Bug #1521 * src/wxterminal/wxt_gui.cpp: Do not change working directory in file export widget. 2014-12-14 Bastian Maerkisch * src/command.c src/command.h src/mouse.c src/mousecmn.h src/plot.c src/qtterminal/qt_term.cpp src/win/wgraph.c src/win/wpause.c src/wxterminal/wxt_gui.cpp src/wxterminal/wxt_term.h: Revise "pause mouse" handling on Windows to handle windows, wxt, qt and caca terminals. Test if the current terminal window is actually open before waiting for mouse input. (Not yet implemented for qt.) The windows terminal no longer expects the core code to reset the paused_for_mouse flag (like the qt, wxt and x11 terminals). The code no longer opens an invisible window to handle "pause mouse" and code to close this window when "pause mouse" mode ends can thus be removed. Interrupting pause mouse via Ctrl-C should now be possible. Bug #1502 * term/caca.trm (waitforinput): Support "pause mouse" if the graph is shown in a window. Bugfix. * docs/windows/doc2html.c: Rename variable "basename" to "name" to avoid a name conflict on some platforms. 2014-12-13 Ethan A Merritt * src/wxterminal/wxt_gui.cpp (wxtPanel::wxt_cairo_refresh): The wxt terminal has been failing when linked against wxgtk3.0. The overt symptom is a library assert statement sometimes followed by a segfault: ./src/gtk/dcclient.cpp(2043): assert "m_window" failed in DoGetSize(): GetSize() doesn't work without window [in thread 7fb21f386700] Call stack: [00] wxOnAssert() [01] wxClientDCImpl::DoGetSize(int*, int*) const [02] wxBufferedDC::UnMask() Both the assert and the segfault are due to the plot window not yet having been rendered on the screen. The documented wxwidgets function panel->IsShownOnScreen() fails to reliably detect this condition, so we must use our own window id bookkeeping to skip any refresh commands before the window appears. Gnuplot Bug #1401 Debian Bug http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=750045 wxWidgets Bug http://trac.wxwidgets.org/ticket/16034 2014-12-11 Ethan A Merritt * src/wxterminal/gp_cairo.c (gp_cairo_move): Do not let zero-length move interrupt the current polyline context (dash pattern, end caps, polygon closure). Bug #1523 * src/datafile.c (df_generate_pseudodata): Prevent infinite loop if sampling range is zero. * src/plot2d.c (eval_plots): Save/restore original dummy variable name for 'x', so that a sampling range using a named variable does not clobber it. 2014-12-11 Bastian Maerkisch * src/win/wgraph.c (drawgaph) src/win/wgdiplus.c (drawgraph_gdiplus): Ignore intermediate move commands in a polyline sequence. Fixes custom dashpatterns for splots and improves drawing performance. Note that custom dashpatterns are only available for the GDI+ variant. Bug #1523 2014-12-08 Ethan A Merritt * src/axis.c (parse_range) src/datafile.c (df_generate_pseudodata): Allow an optional sampling interval as part of the sampling range spec for pseudofile '+' in a plot command: plot sample [a=0:360:10] '+' using (3+sin(a)):(cos(a)) with points 2014-12-08 Bastian Maerkisch * src/term.c (do_point): Always use solid lines to draw point symbols. * src/win/wgraph.c term/win.trm: Make sure that the window size variables are initialized if wgnuplot.ini does not exist yet. Fixes a regression introduced on 2014-10-16. 2014-12-07 Ethan A Merritt * src/datafile.c (df_generate_pseudodata): The sampling variable in a sampled plot is not necessarily x, so "set log x" should not affect it. E.g. set log x; set angle degrees; plot sample [a=1:360] '+' using (3+sin(a)):(cos(a)) with points Bug #1495 2014-12-05 Ethan A Merritt * term/PostScript/prologue.ps: Re-order dash types to more closely match the cairo and qt terminals. 2014-12-03 Ethan A Merritt * src/internal.c: Indentation cleanup for type-check macro BAD_DEFAULT * src/gp_types.h: New state flag INVALID_NAME for internal variables. src/eval.c (pop_or_convert_from_string eval_link_function): Consolidate initial tests for invalid internal variable type. Test for the correct use of linked axis mapping function variables (f(x) for x axis, f(y) for y axis, etc). Bug #1519 2014-12-01 Ethan A Merritt * src/axis.c (clone_linked_axes): Sanity check for linked axis via and inverse functions used fabs() with wrong grouping of parentheses. Bug #1519 2014-11-25 Ethan A Merritt * src/qtterminal/qt_term.cpp: Increase the number of pre-defined dash patterns for the qt terminal to 5, matching the order used by the cairo terminals. 2014-11-23 Ethan A Merritt * src/axis.c src/set.c: The full names of the parallel axes are too long to fit in character arrays built to hold the simpler name "x2/cb/etc". But the 'set' commands using these arrays do not apply to parallel axes, so we avoid problems by never loading these arrays for parallel axes. 2014-11-21 Ethan A Merritt * term/gd.trm: Replace the dotted-line code in PNG_vector with an adaptation of the dash pattern code used by canvas.trm. * src/term.c (term_apply_lp_properties): Special linetype LT_AXIS is intended to produce a dotted line if possible, even on terminals that do not support the general dash pattern mechanism introduced in v5. This means that when rendering lines with linetype LT_AXIS the dashtype code should not be called at all. This bug affected at least the gd and qt terminals. Bug #1516 * src/axis.c (axis_name) src/save.c: paxis tics and range settings were not being saved. * src/show.c: formatting typos (missing \t at beginning of line) * src/graphics.c (map_position_r): If only the x coorinate delta is requested, don't bother to calculate delta y, particularly because delta y=0 will fail if y is log scale. Bug #1512 2014-11-21 Bastian Maerkisch * src/config/mingw/Makefile: Build gnuplot-tikz.help. * src/config/config.mgw: Sync with config.h created by autoconf tools. 2014-11-18 Ethan A Merritt * src/wxterminal/wxt_gui.*: The toolbar widgets for replot/zoom/grid require intervention by the core code in order to act. This is not possible when in -persist mode after the parent process has exited, so disable the toolbar widgets. 2014-11-16 Hans-Bernhard Broeker * term/Makefile.am.in (Makefile.am): Drop creation of conditional definition of build_lua. (all, $(srcdir)/lua/gnuplot-tikz.help): Drop rules for lua help file fragment generation. * docs/Makefile.am (LUA_HELP) [BUILD_LUA]: Define to name of lua help file fragment. ($(LUA_HELP)) [BUILD_LUA]: Build lua help file fragment. (allterm.h): Depend on $(LUA_HELP). * term/lua.trm: Make inclusion of help file fragment depend on HAVE_LUA. Needed for doc builds that unconditionally include all terminals' help. Remove "lua/" from include file name. 2014-11-15 Hans-Bernhard Broeker * term/Makefile.am.in ($(srcdir)/lua/gnuplot-tikz.help): Test for file existence is -f, not -x. 2014-11-15 Ethan A Merritt * term/Makefile.am.in: rebuild term/lua/gnuplot-tikz.help only if --with-lua, otherwise skip this in building the docs 2014-11-12 Ethan A Merritt * term/lua/gnuplot-tiz.help (remove from repository) * term/Makefile.am.in: rebuild term/lua/gnuplot-tikz.help 2014-11-07 Akira Kakuto * term/luz/gnuplot-tikz.lua: Use \errmessage rather than \PackageError because not all TeX variants provide the latter. 2014-11-06 Ethan A Merritt * src/time.c (gstrftime xstrftime) docs/gnuplotdoc demo/timedat.dem: Introduce a new time format modifier 't', used to distinguish dates from times. This allows formatting time data as hours/minutes/seconds relative to time=0 rather than as a calendar date. Compare these representations of the stored value -3672.50 seconds: default date format # "12/31/69 \n 22:58" format "%tH:%tM:%tS" # "-01:01:12" format "%.2tH hours" # "-1.02 hours" format "%tM:%.2tS" # "-61:12.50" 2014-11-04 Daniel J Sebald * src/wxterminal/wxt_gui.cpp: Restore Copy-to-Clipboard option in wxt toolbar. 2014-11-04 Ethan A Merritt * src/datafile.c (f_dollar f_column): When a data field containing NaN is encountered, df_readline returns DF_UNDEFINED to the caller. This is sufficient to handle plotting that point per se, but if the value is also used in evaluation of an arithmetic expression with a side effect then this undefined status flag is not available. For consistency we now pass NaN to the expression evaluation code as well. E.g. plot FOO using 1:(side_effect=f($2)) could leave some random (probably left-over) value in side_effect. Now if $2 is NaN and for example f(x) = (x+foo) then side_effect becomes NaN also. Before this side_effect would have received some other, incorrect, numerical value. * src/save.c (save_dashtype): dashtype -1 is an internal flag; do not save it to an external file. 2014-11-02 Hans-Bernhard Broeker * config/config.oww: If we're going to use strnlen_s for strnlen, must define according C99 library extension macro. * src/set.c (set_dashtype): Command input following the 'default' option would cause a crash by double-deleting from linked list. (parse_histogramstyle): Option "title" is not protected against multiple use. This might cause double-free of font field. * src/bf_test.c (main): Move file-open error handling further up, to avoid (harmless) memory leak. Use standard failure return instead of magic constant. Allocations were relying on sizeof(float)==sizeof(float *). * src/getcolor.c (GROW_GRADIENT): Query realloc()ed pointer for its own type's size; safer than making assumptions about it. (approximate_palette): Dito; and in this case the type was actually wrong. 2014-11-01 Ethan A Merritt * term/cairo.trm (cairotrm_put_text) src/wxterminal/wxt_gui.cpp (wxt_put_text): Start each top level enhanced text recursion using the full font name given in "set term font 'foo'", rather than the most recent font stored in the plot (which is only the font family name, not bold/italic/other). This maintains bold or italic in the original font name, but I am not entirely convinced that it cannot overwrite an intentional change in font family. Bug #1505 2014-10-31 Ethan A Merritt * src/plot2d.c: Issue a warning if someone tries to specify a sampling range for a data plot. Bug #1510 2014-10-31 Bastian Maerkisch * src/wxterminal/wxt_gui.cpp (wxtFrame::OnSize): Only replot on resize if the wxt settings were properly initialized by wxt_init(). On Windows, this would otherwise cause many graph windows to be opened when the first plot command is issued and gnuplot finally hangs or crashes. Bugfix. 2014-10-30 Daniel J Sebald * src/wxterminal/wxt_gui.{cpp|h}: Replace the clipboard widget on the wxt terminal toolbar with a widget to save current plot to a file. EAM: Output to PNG via standard wxWidgets component Output to SVG or PDF by replaying cairo history for current plot. 2014-10-29 Christoph Bersch * term/lua/gnuplot-tikz.lua term/luz.trm: Boxed text support. 2014-10-29 Shigeharu Takeno * docs/gnuplot.doc docs/term-ja.diff docs/gnuplot-ja.doc: Fix typos. Sync Japanese documentation to 1.921 2014-10-26 Ethan A Merritt * term/wxt.trm src/wxterminal/wxt_term.h src/wxterminal/wxt_gui.*: Add a checkbox to the tool widget controlling whether or not the plot is redrawn via "replot" as the terminal window is resized. 2014-10-19 Christoph Bersch * term/lua/gnuplot-tikz.lua: Missing initializations. Bug #1503 2014-10-16 Christoph Bersch * src/stats.c: The stats code was confusing the x and y dimensions of matrix data. E.g. it would report a 5X7 matrix as being 7X5, and mis-calculate the indices of the min/max values. Bug #1501 * term/lua/gnuplot-tikz.lua: Fix incorrect font test. Bug (Feature Request) #409 2014-10-16 Bastian Maerkisch * src/win/wgnuplib.h src/win/wgraph.c term/win.trm: The `size` option now refers to the canvas size instead of the window size in order to be consistent with the qt and wxt terminals. The window size can still be set with the new `wsize` option. Settings are now included in output of `show term`. Bug #1400 2014-10-11 Christoph Bersch * term/lua/gnuplot-tikz.lua: LT_AXIS and LT_SOLID imply specific dash types. Bug #1491 2014-10-11 Hans-Bernhard Broeker * src/axis.c (copy_or_invent_formatstring): Lower end of axis may need more precision in invented format than the distance between max and min. Bug #1496 2014-10-08 Ethan A Merritt * src/save.c (save_all): Write out the filename last used for plotting. This makes a saved plot command referencing '' slightly more useful. 2014-10-07 Ethan A Merritt * src/misc.c (lf_push lf_pop): If lf_push/lf_pop are invoked from do_string_and_free to handle bracketed if{} or do{} expressions, they should not touch the call arguments ARG1, ARG2, ... Save/restore of the call arguments is only needed if lf_push/lf_pop are invoked by "call". Bug #1494 2014-10-05 Ethan A Merritt * src/axis.h src/set.c (set_format): Timefmt revision part 6 - Add tictype keywords to "set format {axis} {time|geographic|numeric}" - Reset to numeric on "unset format" 2014-10-04 Ethan A Merritt * src/axis.c src/axis.h src/datafile.c src/fit.c src/mouse.c src/parse.c src/save.c src/set.c src/setshow.h src/show.c src/unset.c docs/gnuplot.doc demo/gantt.dem: Timefmt revision part 1 of 4 - Remove axis->timefmt and replace it with a single global timefmt. This is what the documentation has always said, but it breaks the undocumented command: set timefmt y "fmt-different-from-xaxis-fmt" - Add a new flag axis->tictype to control interpretation of tic format. axis->datatype will continue to control input format interpretation. - If only a single parameter is passed to timecolumn() try to emulate the version 4 behavior (use global timefmt) * src/save.c src/save.h src/setshow.h src/show.c: Timefmt revision part 2 of 4 - Replace macro SAVE_NUM_OR_TIME with routine save_num_or_time_input(). This routine uses _input_ data format, mostly for reporting axis range. * src/save.c src/save.h src/show.c: Timefmt revision part 3 of 4 - Show and save xyz positions using time-format coordinates when needed. Note that like axis ranges, these are meant to be read in again later so they are written using the input format not the output format. * src/axis.c (get_tics copy_or_invent_formatstring) src/set.c src/unset.c src/show.c src/save.c docs/gnuplot.doc demo/world.dem: Timefmt revision part 4 of 4 - New command set {xyz}tics {time|geographic|numeric} sets axis->tictype - Output formats chosen based on axis->tictype rather than axis->datatype - Report axis->tictype setting with axis->format in "show" and "save" 2014-10-03 Christoph Bersch * term/lua/gnuplot-tikz.lua: linetype -1 must reset dashtype to solid. Bug #1491 2014-10-01 Ethan A Merritt * src/misc.c (arrow_parse): Remove order dependence of "fixed" keyword. * src/hidden3d.c (draw_edge): When an arrow is split into segments by hidden surface processing, only keep the arrowhead on the original tip. * src/plot2d.c (get_data): Timedata for HISTOGRAMS requires a special case. * src/boundary.c src/color.c src/gadgets.c src/gadgets.h src/graph3d.c src/graphics.c src/hidden3d.c src/misc.c src/mouse.c src/multiplot.c src/term.c: Remove wasted parameter passed to apply_pm3dcolor(), reset_textcolor(), and get_offsets(). * docs/gnuplot.doc: Replace outdated section on `set xdata time`. 2014-09-26 Ethan A Merritt * term/js/gnuplot_mouse.js: Typo in logical test for hypertext. * src/axis.h src/save.c src/set.c src/show.c src/unset.c src/graphics.c src/graph3d.c: set [*]tics {{no}enhanced} 2014-09-24 Bastian Maerkisch * src/win/wgraph.c term/win.trm: The windows terminal allowed users to change linetypes via an ini file or with the help of a dialog. This has been superseeded by the more general `set linetype` mechanism. The old code is still available but only active with WIN_CUSTOM_PENS defined during compilation. * src/win/wgraph.c src/win/wgidplus.c: Accept zero point size. Eliminates drawing of unwanted point symbols for labelled contours. Bugfix 2014-09-24 Ethan A Merritt * term/aed.trm term/v384.trm config/makefile.dj2 config/makefile.emx config/makefile.vms configure.vms docs/doc2texi.el docs/Makefile.am src/makefile.all src/makefile.awc src/term.h: Remove obsolete terminals: aed: pre-1980 display device ($15,000) with 500x500 pixels, 256 colors v384: Vectrix VX 384 mid 1980s graphics display terminal ($5000) with 672x480 pixels, 512 colors * src/interpol.c: Force the number of intervals used for interpolating monotonic cubic splines ("smooth mcsplines") to be at least twice the number of data points. 2014-09-22 Christoph Bersch * src/misc.c (parse_fillstyle): Remove order dependence of keyword "transparent". * term/lua.trm term/lua/gnuplot-tikz.lua: Support RGBA linecolors and LT_NODRAW. Add a linewidth terminal option. 2014-09-20 Bastian Maerkisch * src/fit.c src/fit.h src/save.c src/set.c src/show.c src/unset.c docs/gnuplot.doc demo/fit.dem: Remove xerrors option (which requires 3 columns) since it is not like the xerrorbars plot style (which requires 4). Rename `noerrors` option to `unitweights`. Let the fit command default to `unitweights`, i.e. do not interpret the last column of the using spec as z-errors. Add a command `set fit v4|v5` to switch between old-style command line syntax and the new one. Default to `v5`, but `reset` does not change the current setting. Note that this change is backward-incompatible with v5-rc1 and v5-rc2. However it restores compatibility with v4, subject to the restriction that all independent variables must appear in the "fit" command itself (see below). * src/fit.c: Ethan A Merritt - use the tally of dummy variable names to detect version 4 syntax in which the last column of a using spec contains zerror but no "*error" keyword is provided. 2014-09-18 Ethan A Merritt * src/fit.c src/parse.c src/parse.h (int fit_dummy_var[]): Track the occurrence of dummy variable names in a fit command. This lets us count the independent variables so long as they are not obscured. fit f(x,y) 'data' using 1:2:3:4 # flags use of 'x' and 'y' fit x*y 'data' using 1:2:3:4 # flags use of 'x' and 'y' g(x) = x*y; fit g(x) 'data' using 1:2:3:4 # flags 'x', doesn't notice 'y' In each case fit_dummy_var[0] is 1. In the 3rd case fit_dummy_var[1] is 0 but should be 1. Fixing this would be quite hard. 2014-09-18 Bastian Maerkisch * src/win/wgnuplib.h src/wgraph.c term/win.trm: windows terminal supports the toggle command. 2014-09-18 Ethan A Merritt * src/datafile.c: Revised error message for datafile open failure. 2014-09-14 Ethan A Merritt * src/tables.c src/command.c src/command.h docs/gnuplot.doc: New command `toggle { | "plottitle" | all} has the same effect as left-clicking on the key entry for a plot shown by an interactive terminal (qt, wxt, x11). 2014-09-12 Bastian Maerkisch * src/mouse.c (xDateTimeFormat): Use ggmtime() instead of gmtime() to avoid platform specific restrictions. Bug #1470 2014-09-09 Pieter-Tjerk de Boer * docs/gnuplot.doc: Update help on fit to new command syntax. * src/fit.c: Fix init of num_errors. 2014-09-09 Akira Kakuto * src/win/wpause.c (PauseBox): Do not wait for further events after pause dialog box was closed. Bugfix. 2014-09-08 Christoph Bersch * demo/stringvar.dem docs/gnuplot.doc src/internal.c (f_word f_words): Modify the word() and words() functions to recognize quoted strings inside the top level string as single entities. 2014-09-08 Christoph Junghans * configure.in: New option --without-libcerf 2014-09-08 Ethan A Merritt * src/misc.c (lp_parse parse_colorspec): Allow a quoted colorname to immediately follow the keywords lc|linecolor|fc|fillcolor; i.e. in this case the additional rgbcolor keyword is optional. 2014-09-07 Ethan A Merritt * src/plot2d.c: "set linetype 1 pt 'A'; plot x with lp" requires that the plot->labels field be initialized before plotting. * src/save.c: handle PT_CHARACTER when saving linetype 2014-09-05 Ethan A Merritt * src/term_src/api.h src/gadgets.c src/hidden3d.c src/misc.c src/plot2d.c src/plot3d.c src/save.c src/set.c src/ show.c src/term.c: The field lp_style_type.pointflag was variously used as a Boolean, an integer, or a magic number indicating an uninitialized state. Clean this up by replacing it with a bitfield lp_style_type.flags with defined bits LP_SHOW_POINTS LP_NOT_INITIALIZED LP_EXPLICIT_COLOR. This has the side effect of allowing a trivial fix for a regression in 4.6.5 that caused "set hidden3d; splot ... lc " to ignore the requested color. See Bugs #1284 #1475 2014-09-05 Karl Ratzsch * docs/plotstyles.gnu: Dummy up a version of the missing/NaN figure for use with Windows documentation. 2014-09-04 Ethan A Merritt * src/mouse.c src/term_api.h src/gplt_x11.c src/qtterminal/QtGnuplotScene.cpp src/qtterminal/qt_term.* src/wxterminal/wxt_gui.cpp src/wxterminal/wxt_term.h term/caca.trm term/README term/win.trm term/x11.trm: Add a 2nd parameter to the API term->modify_plots(operations, plotno). All terminals for which this entry point is not NULL are updated accordingly. This patchset does not by itself add any new functionality or change user-visible behavior. It prepares for later adding command-line equivalents to mouse operations like "toggle". 2014-09-04 Ethan A Merritt * src/graphics.c (place_arrows) src/graph3d.c (place_arrows3d): Revert arrowhead patch of 2014-08-18. Document that if you want a dashed arrow shaft it is best to use "nofilled" for the arrow head. Bugs #1460 #1476 2014-09-03 Ethan A Merritt * src/graph3d.c src/hidden3d.c: "splot ... with dots" was not drawing the dots. Bug #1474 2014-08-31 Ethan A Merritt * src/stats.c docs/gnuplot.doc: Calculate and report sample standard deviation (STATS_ssd) as well as the population standard deviation (STATS_stddev). Provide formulae for the reported quantities in the LaTeX documentation, and document the difference between _ssd and _stddev in all documentation formats. * src/stats.c: In version 5 when there is no using spec df_readline() always returns at most the number of columns present on the first line. Bug #1472 2014-08-30 Petr Mikulik * config/config.os2: Use _strtoll. 2014-08-29 Petr Mikulik * src/gplt_x11.c (exec_cmd process_configure_notify_event): Add missing #ifdefs: USE_X11_MULTIBYTE and PIPE_IPC. 2014-08-21 Ethan A Merritt * src/fit.c: Handle columnheaders in input to "fit". Bug #1467 * src/misc.c (lp_parse): Flag "set object N lt " as an error, since currently this must be done be "set object N fs bo ". Probably we should figure out how to make this command work, but better to issue an error than accept it and then ignore it. Bug #1460 * src/bf_test.c: Use HAVE_STDLIB_H and HAVE_MALLOC_H to include proper header file for calloc(). "Jun T." . 2014-08-21 Ethan A Merritt * Branchpoint for 5.0 (cvs tag -b branch-5-0-stable) The main (development) branch is now marked 5.1 and will eventually be used as the basis for a future release named gnuplot version 5.2. >>> Earlier entries are in ChangeLog.5