A long time ago I created a patch for Tetradraw that enables it to create ascii images for linux console IIRC ;)
You can get Tetradraw and the patch here:
tetradraw-2.0.2.tar.gz
tetradraw-2.0.2.ane.diff.gz
I appreciate a comment here when you use that and/or have questions.

GoudviZ
on Apr 5th, 2006
@ 10:45 am:
thnx , i knew someone still had the program :)