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- Path: sparky!uunet!sun-barr!olivea!gossip.pyramid.com!pyramid!octopus!sjsumcs!rick
- From: rick@sjsumcs.sjsu.edu (Richard Warner)
- Newsgroups: comp.windows.x.apps
- Subject: Re: Postscript to bitmap conversion?
- Message-ID: <1992Sep14.144802.28543@sjsumcs.sjsu.edu>
- Date: 14 Sep 92 14:48:02 GMT
- References: <18u5efINNlci@agate.berkeley.edu> <salnick.0k49@dejavu.spk.wa.us> <1992Sep13.214541.4634@infodev.cam.ac.uk>
- Organization: San Jose State University - Math/CS Dept.
- Lines: 37
-
- tda10@cus.cam.ac.uk (Tim Auckland) writes:
-
- >In article <salnick.0k49@dejavu.spk.wa.us>, salnick@dejavu.spk.wa.us (There is no substitute for displacement...) writes:
- >|> In article <18u5efINNlci@agate.berkeley.edu> dcook@garnet.berkeley.edu (Dan Cook) writes:
- >|> >I'm looking for a way to convert some postscript files
- >|> >to X11 bitmap format... Does anyone have any ideas?
- >|> >
- >|> >-uncle dan
- >|>
- >|> PbmPlus utilities?
-
- >No, PbmPlus deals with rasters and other "simple" graphics models. Admittedly
- >they may be in fancy formats but nothing in that package can come near real
- >PostScript. There is a note from the author explaining that although there are
- >the psto?? tools for unpacking PS image format, they are not really serious.
-
- >PostScript is a complete programming language and should not be mistaken for a
- >mere "graphics format". It requires a fairly heavy interpreter implementing
- >virtual memory and sometimes even file-system operations. GhostScript provides a
- >very good PD PostScript interpreter. It does include a program (written in
- >postscript, of course) that will run a PostScript file and write the output to
- >disk in ppm format. After that yo may use the PbmPlus suite.
-
- I have one addendum to this. In the process of rasterizing a PostScript
- program into an image that PbmPlus (or other raster-image utilities) can
- muck about with, a resolution independent graphic is converted into a
- resolution dependent image - so anyone wanting to have an image they can
- resize, etc., should keep it in PS format. If you do want to convert -
- figure out what dimensions you want your final image to be, the resolution
- of your output device, and convert the image with enough bits to fill
- the image area, and no more. I have worked with a number of folks that
- convert a PS image to, say, a 1024x768 image for the screen and then wonder
- why they only get a 3"x2" (approximate) image on their laser printer.
-
-
-
- >Tim.
-