Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!uxc.cso.uiuc.edu!s.cs.uiuc.edu!mccaugh From: mccaugh@s.cs.uiuc.edu Newsgroups: comp.graphics Subject: Smart Pixels? Message-ID: <207400033@s.cs.uiuc.edu> Date: 12 Oct 89 00:40:14 GMT Lines: 12 Nf-ID: #N:s.cs.uiuc.edu:207400033:000:481 Nf-From: s.cs.uiuc.edu!mccaugh Oct 10 23:59:00 1989 Does anyone know of a system with "smart" pixels? By that I mean pixels that can at least sense when they are being altered and convey that sensing to a procedure doing the altering. E.g., a line-drawing procedure would be sig- nalled if the line to be drawn passed through pixels already set to some status (such as color), in which case would refrain from drawing and return an error-code to the sender. Thanks for any help. Scott McCaughrin (mccaugh@s.cs.uiuc.edu)