Sketch is a small, simple system for producing line drawings of
two- or three-dimensional objects and scenes. It began as a way to
make illustrations for a textbook after we could find no suitable
tool for this purpose. Existing scene processors emphasized GUIs
and/or photo-realism, both un-useful to us. We wanted to produce
finely wrought, mathematically-based illustrations with no extraneous
detail.
Sketch accepts a tiny scene description language and generates
PSTricks or TikZ/PGF code for LaTeX. The
sketch language is similar to PSTricks, making it easy
to learn for current PSTricks users. See
www.pstricks.de for information on PSTricks.
TikZ/PGF is similar.
See
http://sourceforge.net/projects/pgf. One can easily include
arbitrary
PSTricks or TikZ/PGF drawings and text
over, in, or under
sketch drawings, providing access to the full power of LaTeX
text and mathematics formatting in a three-dimensional setting.