emp – "Encapsulate" METAPOST figures in a document

Emp is a pack­age for en­cap­su­lat­ing METAPOST fig­ures in LaTeX: the pack­age pro­vides en­vi­ron­ments where you can place METAPOST com­mands, and means of us­ing that code as frag­ments for build­ing up fig­ures to in­clude in your doc­u­ment. So, with emp, the pro­ce­dure is to run your doc­u­ment with LaTeX, run METAPOST, and then com­plete run­ning your doc­u­ment in the nor­mal way.
Emp is there­fore use­ful for keep­ing il­lus­tra­tions in syn­chrony with the text. It also frees you from in­vent­ing de­scrip­tive names for PostScript files that fit into the con­fines of file sys­tem con­ven­tions.