Date: Wed, 22 Jul 1992 15:03 EDT
    From: Duong lien t <lien@aplcen.apl.jhu.edu>
       does anyone has an algorithm that provides transformations for bitmap?
Tell me if you do, please.  Mine is too feeble to warrant installation
into CLIM, and the more general one I wrote uses rasterization to do the
transformations (!).