**graph_paper_test**,
a FORTRAN90 code which
calls graph_paper(), which
makes graph paper.

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

graph_paper, a FORTRAN90 code which makes PostScript (PS) graph paper using rectangular, triangular, or hexagonal grids.

- graph_paper_test.f90, the calling program;
- graph_paper_test.sh, runs all the tests.
- graph_paper_test.txt, the output file.

- hexagonal_1.png, a PNG image of a hexagonal line grid that roughly forms a triangle.
- hexagonal_2.png, a PNG image of a hollow hexagonal dot grid that fills a rectangle. The dots look like "chicken wire", because a central dot of each hexagon has been removed.
- hexagonal_3.png, a PNG image of a hexagonal line grid that fills a rectangle (some minor defects in the image need to be attended to).
- hexagonal_4.png, a PNG image of a hexagonal line grid that fills a rectangle. This is similar to the chicken wire graph, except that no dots are omitted.
- hexagonal_5.png, a PNG image of a 14x14 hexagonal grid suitable for playing HEX.
- polar_1.png, a PNG image of a polar line grid.
- sudoku_blank.png, a PNG image of a sheet of 12 blank sudoku grids.
- sudoku_filled.png, a PNG image of a sheet of 12 sudoku grids, only one of them has a problem set up.
- staggered_2.png, a PNG image of a staggered dot grid.
- triangular_1.png, a PNG image of a triangular line grid.
- triangular_2.png, a PNG image of a triangular dot grid.
- uniform_1.png, a PNG image of a uniform line grid;
- uniform_2.png, a PNG image of a uniform dot grid;
- uniform_3.png, a PNG image of a uniform line grid with heavy guide lines;
- uniform_4.png, a PNG image of a uniform line grid with 12 boxes per inch;