Mfpic is a scheme for producing pictures from (La)TeX commands. Commands \mfpic and \endmfpic (in LaTeX, the mfpic environment) enclose a group in which drawing commands may be placed. The commands generate a Meta-language file, which may be processed by MetaPost (or even Metafont). The resulting image file will be read back in to the document to place the picture at the point where the original (La)TeX commands appeared.