Subject:
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Re: Building a Postscript printer?
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 24 Jun 2000 18:46:21 GMT
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Viewed:
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605 times
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Yup, that was pretty much what I was planning to do. Hack Ghostscript
into something to generate a sequence of vector commands to drive
the RCX.
I was searching for information on a Postscript->HPGL/PCL converter myself
since that is basically what I am doing here. Only problem is that the RCX
is going to be a relatively primitive renderer in terms of resolution etc,
compared
to the average HPGL-speaking plotter.
Also, it looks like stepper motors are going to be required (I think). I
will search the newsgroup for more info, but is it a problem to control
stepper motors with
the RCX?
If possible, could I get hold of the source code for the converter you wrote?
Also, is there a good reference for HPGL apart from the HP-provided printer
manual which I may not be able to lay hands on?
Thanks,
Manoj
In lugnet.robotics, "Chris Osborn" <fozztexx@fozztexx.com> writes:
> On Jun. 23 00, 11:35 PDT, "Manoj Plakal" <plakal@no-spam.cs.wisc.edu>
> wrote:
> You're going to want to use GhostScript for your PostScript
> interpreter. It already does a good job of interpreting PostScript,
> so you don't have to write one from the ground up. Then all you
> have to do is put definitions into the main dictionary that redefine
> the basic set of functions to instead output the vectors that should
> be plotted to a file or stdout.
>
> =46rom there your PC can just chew through the list of vectors and
> tell the RCX what to do.
>
> This is essentially the method I used to turn my HPGL plotter into
> a PostScript plotter.
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Message has 2 Replies:
 | | Re: Building a Postscript printer?
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| There is an online version of the manual(at least part of it--the important parts) available at Wotsit www.wotsit.org. Go to printer formats. There is several formats listed, including PCL and HP-GL/2. Andy (...) (24 years ago, 24-Jun-00, to lugnet.robotics)
| | | Re: Building a Postscript printer?
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| (...) Hacking GhostScript is not necessary. PostScript lets you redefine the standard functions. --- Chris Osborn FozzTexx Enterprises fozztexx@fozztexx.com 2136 Coronado Ave. (URL) Napa, CA 94559 (24 years ago, 25-Jun-00, to lugnet.robotics)
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Message is in Reply To:
| | Re: Building a Postscript printer?
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| (...) You're going to want to use GhostScript for your PostScript interpreter. It already does a good job of interpreting PostScript, so you don't have to write one from the ground up. Then all you have to do is put definitions into the main (...) (24 years ago, 24-Jun-00, to lugnet.robotics)
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