Triggered by the sheer horror of attempting to use RWG's triple-moerder-henker-OMG.pdf I produced a pdf containing 238 images (often in color) each one a grid-filling curve, together with the L-system that generates them. http://jjj.de/tmp-snap/ (there snap-2013.11.17.pdf) The file snap-2013.11.17-toc.txt gives the names of the pdfs for the individual pages, in http://jjj.de/3frac/ Happy color printing! To stick to the horror theme, here is a make-target I used for each of the pdfs: --------------------- .PHONY: z z: eval $$(xcb -p 0) --------------------- If this is not powerful (and bloody dangerous), then what is? ... and WDS should really use "reply" more often. Beer o'clock, jj