Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!ISUMVS.BITNET!GG.SPY
From: GG.SPY@ISUMVS.BITNET ("John Hascall")
Newsgroups: comp.os.vms
Subject: Re: SIXEL/REGIS -> HPGL
Message-ID: <8805260921.AA20650@ucbvax.Berkeley.EDU>
Date: 24 May 88 14:40:45 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 30


Info-vaxers:

    Recently, someone asked about REGIS and/or SIXEL to HPGL translation.
I asked our local graphics-guru about these, here is his answer:

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Date: 23-MAY-1988 23:28:55.33
From: GAMRC@ISUVAX
To:   VAXE::BITNET::"GG.SPY@ISUMVS"
Subj: RE: Any clues on this?

John,
  Regarding REGIS-to-HPGL : Although such a transformation is possible,
it would be VERY messy and a nontrivial task.  I know of no existing
packages for this transformation.
  Regarding SIXEL-to-HPGL : A truly horrendous conversion.  SIXEL is a raster
protocol while HPGL is a vector protocol.  Raster to vector transformation
is monstrously inefficient and rarely provides reasonable-looking output.
Again, I know of no such existing package.
  Of the two approaces to hardcopy, REGIS-to-HPGL would afford the best
results, but writing such a conversion would be a significant task.
Martin.

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John Hascall
Iowa State Univ Computation Center
Ames, Iowa