WEDGE_GRID
Grid Points Within the Unit Wedge

WEDGE_GRID is a FORTRAN77 library which generates a grid of points over the interior of the unit wedge in 3D.

The interior of the unit wedge in 3D is defined by the constraints:

        0 <= X
        0 <= Y
             X + Y <= 1
       -1 <= Z <= +1
      

Licensing:

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

Languages:

WEDGE_GRID is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version and a Python version

Related Data and Programs:

BALL_GRID, a FORTRAN77 library which computes a grid of points over the interior of a ball in 3D.

CIRCLE_ARC_GRID, a FORTRAN77 program which computes a grid of points along the length of a circular arc in 2D.

CUBE_GRID, a FORTRAN77 library which computes a grid of points over the interior of a cube in 3D.

DISK_GRID, a FORTRAN77 library which computes a grid of points over the interior of a disk in 2D.

ELLIPSE_GRID, a FORTRAN77 library which computes a grid of points over the interior of an ellipse in 2D.

ELLIPSOID_GRID, a FORTRAN77 library which computes a grid of points over the interior of an ellipsoid in 3D.

HYPERCUBE_GRID, a FORTRAN77 library which computes a grid of points over the interior of a hypercube in M dimensions.

LINE_GRID, a FORTRAN77 library which computes a grid of points over the interior of a line segment in 1D.

PYRAMID_GRID, a FORTRAN77 library which computes a grid of points over the interior of the unit pyramid in 3D;

SIMPLEX_GRID, a FORTRAN77 library which generates a grid of points over the interior of a simplex in M dimensions.

SPHERE_GRID, a FORTRAN77 library which provides a number of ways of generating grids of points, or of points and lines, or of points and lines and faces, on the surface of the unit sphere in 3D.

SQUARE_GRID, a FORTRAN77 library which computes a grid of points over the interior of a square in 2D.

TETRAHEDRON_GRID, a FORTRAN77 library which computes a grid of points over the interior of a tetrahedron in 3D.

TRIANGLE_GRID, a FORTRAN77 library which computes a grid of points over the interior of a triangle in 2D.

Source Code:

• wedge_grid.f, the source code.
• wedge_grid.sh, BASH commands to compile the source code.

Examples and Tests:

• wedge_grid_prb.f, a sample calling program.
• wedge_grid_prb.sh, BASH commands to compile and run the sample program.
• wedge_grid_prb_output.txt, the output file.

The test program creates some files for use by GNUPLOT.

• wedge_commands.txt, commands for GNUPLOT.
• wedge_vertices.txt, the vertices of the wedge.
• wedge_nodes.txt, the grid points.
• wedge.png, a plot of the grid.

List of Routines:

• GET_UNIT returns a free FORTRAN unit number.
• TIMESTAMP prints the current YMDHMS date as a time stamp.
• WEDGE_GRID computes grid points in the unit wedge in 3D.
• WEDGE_GRID_SIZE counts the points in a grid of the unit wedge in 3D.
• WEDGE_GRID_PLOT sets up a GNUPLOT plot of a unit wedge grid.
• WEDGE_VERTICES returns the vertices of the unit wege.

You can go up one level to the FORTRAN77 source codes.