Re: What is wrong with tiger.ps

From	Helge Blischke <h.blischke@acm.org>
Newsgroups	comp.lang.postscript
Subject	Re: What is wrong with tiger.ps
Followup-To	comp.lang.postscript
Date	2011-09-27 22:28 +0200
Message-ID	<9eepvjFstmU1@mid.individual.net> (permalink)
References	<5q048716aaop687rj90g6epr5f1c28udj8@4ax.com>

Followups directed to: comp.lang.postscript

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Norbert Hahn wrote:

> Hi,
> 
> when I run gs to get the BoundingBox
> 
> gs -sDEVICE=bbox /usr/share/ghostscript/7.07/examples/tiger.ps
> 
> I get a very large square box:
> 
> %%BoundingBox: 0 0 150977 150977
> %%HiResBoundingBox: 0.000000 0.000000 150976.921393 150976.921393
> 
> The tiger is more than 20 years old and comes with ghostscript.
> What am I missing?
> 
> Norbert

Well, the first statement which produces marks on the medium is

.8 setgray clippath fill

but at this time no media size is specified. So the clippath operator 
results in a huge rectaqngle; the actual size is presumably determined by 
some internal Ghostscript default.

To demonstrate:

gs -r18 -sPAPERSIZE=a0 tiger.ps

displays an A0 page on the screen completely filled with the light gray and 
the tiger in the lower left corner.

Helge

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Thread

What is wrong with tiger.ps Norbert Hahn <ihatespam@nospam.invalid> - 2011-09-27 19:13 +0200
  Re: What is wrong with tiger.ps Helge Blischke <h.blischke@acm.org> - 2011-09-27 22:28 +0200
  Re: What is wrong with tiger.ps SaGS <sags5495@gmail.com> - 2011-09-28 01:42 -0700
    Re: What is wrong with tiger.ps Norbert Hahn <ihatespam@nospam.invalid> - 2011-09-28 15:50 +0200

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