1. Define Tex/LaTeX commands to draw using metafont/metapost MFpic defines a command group \mfpic...\endmfpic (optionally in LaTeX an environment mfpic) and drawing commands to be used inside this group. When TeX (or LaTeX) is run on a file containing those commands, a Metafont or MetaPost source file is created. When that file is correctly processed by Metafont (or MetaPost), and LaTeX or TeX is run again, the result is a figure in the TeX document in the location of the environment. From Debian 3.0r0 APT