You're traveling through another dimension. A dimension not only of length and width, but of depth. That's the signpost up ahead. Your next stop -- the POSTSCRIPT ZONE. Welcome to Zone. With it you can pretend your Postscript printer is three dimensional. This package is a set of headers that you can add to your files to make them know how to draw in three dimensions. The page, of course is a perspective two-dimensional projection of this three-dimensional drawing space. You can adjust this projection, rotate your three-dimensional coordinate system, translate, and so on. There's also linmap.ps that allows you to take a 2-d path and map it onto a plane in the three-dimensional drawing space. Or warpmap.ps that maps it onto a user-defined surface with a user-defined map. Spheres and cylinders are here as examples. zone.ps macros that allow you to draw in three dimensions linmap.ps macros that allow you to take 2-d Postscript paths and put them in a plane in the 3-d space warpmap3.ps macros that allow you to take 2-d Postscript paths and map them on an arbitrary surface in the 3-d space using a user-defined function breakpath.ps breaks the path (intended for a fill region) into trapezoids to make them more manageable for warpmap.ps spherewarp.ps a ready-defined function for warpmap that maps stereographically onto a sphere Send bug reports, comments, and suggestions, to: drwho@athena.mit.edu and/or mosquito@athena.mit.edu