Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site sri.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!houxm!houxz!vax135!floyd!whuxle!mit-eddie!genrad!decvax!mulga!munnari!sri!jules From: jules@sri.UUCP (Rod Steindl) Newsgroups: net.general,net.graphics Subject: CAT-400 Graphics Imaging System - Lightpen Message-ID: <92@sri.UUCP> Date: Fri, 15-Jun-84 22:28:27 EDT Article-I.D.: sri.92 Posted: Fri Jun 15 22:28:27 1984 Date-Received: Sun, 10-Jun-84 02:05:55 EDT Organization: Sugar Research Institute, Mackay, Australia Lines: 30 We have a CAT-400 Graphics Imaging System with digitizing frame grabber as put out by DIGITAL GRAPHIC SYSTEMS, Palo Alto, CA. However the lightpen which is supposed to provide a dynamic interaction with the displayed image is not interacting as it should. The lightpen is being correctly identified in eight narrow horizontal bands. There are an equal number of bands where the coordinates calculated from the byte- and bit-pointers are incorrect and yet another equal number of interspersed bands where the lightpen is not seen at all. Has anyone had any experience with this package and/or this problem or can offer any suggestions. All correspondence to DIGITAL GRAPHIC SYSTEMS seems to have been ignored. I have had only limited experience in this field and thus the problem may be easily overcome by someone in the know. For anyone with this particular package, has there been any useful software updates in the past two years? Please mail any replies to jules@sri Regards, Rod Steindl. Sugar Research Institute, P.O. Box 689, Mackay. 4740. Qld., Australia. Return path: decvax!mulga!munnari!natmlab!sri