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.
thnx , i knew someone still had the program 🙂