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From: aki@akix.uucp (Aki Atoji)
Newsgroups: comp.lang.postscript
Subject: Re: Stroking thick lines about arcs
Message-ID: <1991Feb24.012318.11018@akix.uucp>
Date: 24 Feb 91 01:23:18 GMT
References: <1991Feb20.161757.24206@motcad.portal.com>
Organization: CxS Systems
Lines: 36

jtc@motcad.portal.com (J.T. Conklin) writes:

>I have been observing that stroking an arc with a ``thick'' line results
>in some areas of white peeking through the line --- especially about the
>outside perimeter --- on two independant PostScript implementation.

Which two PostScript were these?

[.. stuff deleted..]

>I would be interested to know if this prints without white specks in the
>circle on a real Adobe Interpreter.

I handed this info off to PS people here at Talaris to see if we get
the same results on Talaris printers with PostScript emulatioin.  The
resulting page had no white specks.  I'd be interested to know what
the outcome on true Adobe would be as well.

On the related topic of compatibility, if Adobe does white specks on
thick arcs or any other peculiarities not in the blue/red/black book,
what should be the correct implementation for non-Adobe people who
writes PostScript implementation?  How should 100% adobe compatibility
defined anyways?  100% conformance to the book?  Or 100% emulation of
Adobe postscript itself if they differ?

>	--jtc

>-- 
>J.T. Conklin    jtc@motcad.portal.com, ...!portal!motcad!jtc

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Aki Atoji                                    {ncr-sd,ucsd}!serene!akix!aki
aki@akix.uucp             {nosc,ucsd,hplabs!hp-sdd}!crash!telesys!akix!aki
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