CUBE_GRID
Grid of Points Inside a Cube in 3D {#cube_grid-grid-of-points-inside-a-cube-in-3d align="center"}
CUBE_GRID is a C++ library which generates a grid of points over the interior of a cube in 3D.
The 3D cube is the set of points (X(1),X(2),X(3)) such that:
A(I) <= X(I) <= B(I)
For each dimension I, a set of parameters is input:
- NS(I), the number of points along the I-th coordinate direction;
- A(I), B(I), the left and right endpoints of the I-th coordinate.
- C(I), one of 5 choices for centering the grid in the I-th coordinate.
The centering options allow the user to control the centering of the equally spaced points. This is easiest to illustrate if we look at a 1 dimensional case and assume A = 0 and B = 1. Then, using NS = 4, the centering options will produce 4 equally spaced points as follows:
- 1: 0, 1/3, 2/3, 1 (include endpoints)
- 2: 1/5, 2/5, 3/5, 4/5 (do not include endpoints)
- 3: 0, 1/4, 2/4, 3/4 (do not include right endpoint)
- 4: 1/4, 2/4, 3/4, 1 (do not include left endpoint)
- 5: 1/8, 3/8, 5/8, 7/8 (half spacing at the ends)
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
CUBE_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.
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- cube_grid.cpp, the source code.
- cube_grid.hpp, the include file.
- cube_grid_prb.cpp, a sample calling program.
- cube_grid_prb_output.txt, the output file.
- CUBE_GRID: grid points over the interior of a cube in 3D.
- R8MAT_TRANSPOSE_PRINT prints an R8MAT, transposed.
- R8MAT_TRANSPOSE_PRINT_SOME prints some of an R8MAT, transposed.
- R8VEC_DIRECT_PRODUCT creates a direct product of R8VEC's.
- TIMESTAMP prints the current YMDHMS date as a time stamp.
You can go up one level to the C++ source codes.
Last revised on 31 August 2014.