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From: mh@roger.imsd.contel.com (Mike Hoegeman)
Newsgroups: comp.windows.x
Subject: Re: A tirade about inefficient software & systems
Message-ID: <60255@wlbr.IMSD.CONTEL.COM>
Date: 3 Nov 90 20:02:05 GMT
References: <9011010052.AA05115@zia.aoc.nrao.edu> <7883@adobe.UUCP>
Sender: news@wlbr.IMSD.CONTEL.COM
Organization: Contel GSG, Westlake Village, CA
Lines: 20

In article <7883@adobe.UUCP> asente@adobe.com (Paul Asente) writes:
 >In article <9011010052.AA05115@zia.aoc.nrao.edu> cflatter@ZIA.AOC.NRAO.EDU (Chris Flatters) writes:
 >>Working against NeWS (and presumably Display PostScript) is the fact that
 >>they impose the PostScript imaging model on their clients, which may not
 >>be appropriate for some applications.
 >
 >Not true for Display PostScript, at least as it exists on DEC and IBM boxes
 >(i.e. as an X extension, as opposed to NeXT, where it's the whole window
 >system).  You can freely intermingle PostScript and X calls to achieve the
 >results you want.  For example, a useful programming technique is to use
 >PostScript to image into a pixmap and use XCopyArea to blit portions or all
 >of the pixmap into an X window -- this gives you smooth animation since it
 >works as double buffering.  Especially useful for dragging outlines of
 >complicated shapes around.
 >
 >	-paul asente
 >		asente@adobe.com	...decwrl!adobe!asente

Just as a quick addition to this thread, X11/NeWS is capable of doing this too
-mike hoegeman, mh@roger.imsd.contel.com