There have been various topics asking for herringbone hatch patterns, with different sizes of tiles/bricks/planks. One asked whether there could be a generic pattern generator for these. I have come up with one, HerringboneCleanRatioPAT.lsp with its HerrHPG command (attached).
You start the command, give it the length and width of the elements, and it makes the .PAT file, but so far, only WHEN THE WIDTH DIVIDES EQUALLY INTO THE LENGTH. That's very much easier than otherwise, and is what the "CleanRatio" part of the file name means. It scolds you if you give it sizes that don't divide evenly. [I'm working on expanding it to work with other ratios, and if/when I get that working, will post it.]
The "clean ratio" aspect does not limit it to integer values for the element size. I've made, for example, 9.9x1.1 and 12.75x4.25 patterns with it.
Read the comments at the top of the file. NOTE that you need to EDIT the filepath/folder location for where you want the file to go.
