Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!mcsun!hp4nl!esatst!neil
From: neil@yc.estec.nl (Neil Dixon)
Newsgroups: comp.sys.hp
Subject: Picking from device independendent Starbase Display List
Message-ID: <1053@esatst.yc.estec.nl>
Date: 11 Dec 89 19:09:39 GMT
Reply-To: neil@esatst.UUCP (Neil Dixon)
Organization: ESTEC/YCV, Noordwijk, The Netherlands
Lines: 11

Is it possible to pick from a device independent display list? 

As a first guess I assume that the only way to do it is to traverse
the display list, issuing display_segment calls and checking for hits
on the pick aperture, but how do I get the correct segment when using
hidden surface removal? Do I have to traverse the list twice?
-- 
Neil Dixon <neil@yc.estec.nl> UUCP:...!mcvax!esatst!neil, BITNET: NDIXON@ESTEC
Thermal Control & Life Support Division (YC) 
European Space Research and Technology Centre (ESTEC),
Noordwijk, The Netherlands.