For classical mechanical drawings, as used in e.g. patents, hatch patterns are used. In the tutorial on https://inkscape.org/en/~henkjan_nl/%E2%98%85patterns-for-mechanical-drawings-in-inkscape I also include a description with: 1) how to import and use patterns in general 2) how these patterns were created using Python I also included all source files Kind regards, HenkJan van der Pol.