esk – Package to encapsulate Sketch files in LaTeX sources

The ESK pack­age al­lows to en­cap­su­late Sketch files in LaTeX sources.
This is very use­ful for keep­ing il­lus­tra­tions in sync with the text. It also frees the user from in­vent­ing de­scrip­tive names for new files that fit into the con­fines of file sys­tem con­ven­tions. Sketch is a 3D scene de­scrip­tion lan­guage by Eu­gene K. Ressler and can gen­er­ate TikZ and PSTricks code. ESK be­haves in a sim­i­lar fash­ion to EMP (which en­cap­su­lates METAPOST files), and was in fact de­vel­oped from it.