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From: raja@bombay.cps.msu.edu (Narayan S. Raja)
Newsgroups: comp.windows.x
Subject: Re: Problem Converting Mac PICT file to Portable Bitmap
Message-ID: <1990Dec28.001054.28966@msuinfo.cl.msu.edu>
Date: 28 Dec 90 00:10:54 GMT
References: <10860@jpl-devvax.JPL.NASA.GOV>
Sender: news@msuinfo.cl.msu.edu
Reply-To: raja@cpswh.cps.msu.edu
Organization: PRIP Lab, Comp. Sci. Dept., MSU
Lines: 34


In article <10860@jpl-devvax>, (Larry Carroll) writes:


< I created a Macintosh PICT file using PixelPaint and transferred it to a Sun3
  [...]
< However, when I run 'picttopbm' on the file I get the following message. 
<      picttopbm: unknown PICT2 opcode - 0x0c00 - cant't handle

picttopbm handles only PICT1, not PICT2
(so far as I know).


< Can some experienced users of 'pbmplus' tell us what's wrong, or suggest how 
< we should attempt to do this conversion?  Should we use something beside 
< PixelPaint to create the PICT file, for instance?  Or should we create a 
< Macintosh TIFF file, perhaps, instead of PICT?

TIFF is another troublesome format -- some
Mac programs seem to produce TIFFs which
are not acceptable to the TIFF programs in
libtiff (and libtiff-based filters like
the ones in FBM, ImageMagick, or tiff2ras).

We do the conversion on the Mac itself,
using GifConverter.  TIFF files produced by
GifConverter seem to be politically correct
according to libtiff.  However, for some
unknown reason GifCoverter seems to produce
only 8-bit color TIFF files.  You can also 
convert to GIF.


Narayan Sriranga Raja.