PicTeX is an early, and very comprehensive drawing package, that mostly draws by placing myriads of small dots to make up pictures. It has a tendency to run out of space, most especially of allowable dimensions registers; packages m-pictex and pictexwd deal with the register problem, in different ways.
Note that full documentation may be bought via the PC-TeX site, though a command summary is available as free software.
Alternatively, a front-end package such as mathsPiC, which covers all of PicTeX and has a complete and free manual, could be used.
The author is Michael Wichura.
License: lppl1 Version: 1.1 Catalogued: 2015-08-03