Find a computer graphics text. -- Andy Selle <aselle@ticalc.org> Programming and System Administration, Survey Editor, Accounts Manager the ticalc.org project - http://www.ticalc.org/ On Sat, 11 Aug 2001 Rgdtad@aol.com wrote: > > Does anyone know how to map a grid of 3D coordinates onto a 2D screen from > any given eyepoint (coordinates or angles)? > > >