POINTS_01_PLOT
Plot Points in the Unit Square

POINTS_01_PLOT is a MATLAB program which can read an ASCII file defining a set of points in the unit square [0,1] by [0,1]. The program can also automatically save the image in a file. Either EPS (Encapsulated PostScript) or PNG can be used.

Usage:

points_01_plot ( 'file_name' )

plots the points in the [0,1] square from the file 'file_name'.

points_01_eps ( 'file_name' )

plots the points in the [0,1] square from the file 'file_name' and saves an EPS file;

points_01_png ( 'file_name' )

plots the points in the [0,1] square from the file 'file_name' and saves an PNG file;

points_11_png ( 'file_name' )

plots the points in the [-1,1] square from the file 'file_name' and saves an PNG file;

Related Data and Programs:

EPS, a data directory which contains examples of the Encapsulated PostScript (EPS) format.

NESTED_SEQUENCE_DISPLAY, a MATLAB program which reads a set of sequences, plots them as horizontal lines of data, and connects sequence entries that are equal.

PLOT_POINTS, a FORTRAN90 program which can read a file of point coordinates and make a PostScript image of them.

XY, a data directory which contains some examples of 2D pointsets.

XY_DISPLAY, a MATLAB program which reads a set of 2D points from a file and plots them in a the MATLAB graphics window.

XY_DISPLAY_OPENGL, a C++ program which reads a set of 2D points from a file and plots them in an OpenGL graphics window.

XYZ_DISPLAY, a MATLAB program which reads a set of 3D points from a file and plots them in a the MATLAB graphics window.

XYZ_DISPLAY_OPENGL, a C++ program which reads a set of 3D points from a file and plots them in an OpenGL graphics window.

Source Code:

• file_name_ext_swap.m, creates a new file name by changing the extension.
• points_01_plot.m, reads a data file in the [0,1] square, and displays it.
• points_01_eps.m, reads a data file in the [0,1] square, displays it, and creates an EPS plot.
• points_01_png.m, reads a data file in the [0,1] square, displays it, and creates a PNG plot.
• points_11_png.m, reads a data file of points in the [-1,1] square, displays it, and creates a PNG plot.
• s_len_trim.m, returns the length of a string to the last nonblank.
• timestamp.m, prints the current YMDHMS date as a timestamp.

Examples and Tests:

• fred.txt, a sample input file, containing 100 points in the unit square.
• fred.eps, the Encapsulated PostScript image of the points.
• fred.png, the PNG image of the points.

You can go up one level to the MATLAB source codes.