CIRCLE_ARC_GRID
Compute Grid Points Along a Circular Arc

CIRCLE_ARC_GRID is a MATLAB library which calculates a grid of points equally spaced along a circular arc.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

CIRCLE_ARC_GRID is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version.

Related Programs:

BALL_GRID, a MATLAB library which computes grid points that lie inside a 3D ball.

CIRCLE_GRID, a MATLAB library which computes grid points that lie inside a circle.

ELLIPSE_GRID, a MATLAB library which computes grid points that lie inside an ellipse.

ELLIPSOID_GRID, a MATLAB library which computes grid points that lie inside a 3D ellipsoid.

TETRAHEDRON_GRID, a MATLAB library which computes a tetrahedral grid of points.

TRIANGLE_GRID, a MATLAB library which computes a triangular grid of points.

Source Code:

• circle_arc_grid.m, computes grid points along a circular arc.
• r82vec_print_part.m, prints "part" of an R82VEC.
• r8mat_write.m, writes an R8MAT file.
• timestamp.m, prints the current YMDHMS date as a time stamp.

Examples and Tests:

• circle_arc_test.m, calls all the tests.
• circle_arc_grid_test01.m, calls circle_arc_grid to make a grid along a 90 degree arc.
• circle_arc_grid_test_output.txt, the output file.

ARC is a set of 10 equally spaced points from 0 to 90 degrees, on a circle of radius 2 centered at (5,5).

• arc.txt, the data.
• arc.png, an image of the points.

PENTAGON is a set of 6(!) equally spaced points from 0 to 360 degrees. This is the easiest way to get a pentagon, but you should really edit the file and remove the last point, since it repeats the first one. The alternative is to specify that the angles range from 0 to 288 degrees!

• pentagon.txt, the data
• pentagon.png, an image of the points.

List of Routines:

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