EPS Clipping Path

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5 total messages Started by robincorcoran Mon, 06 Jan 2003 21:14

#1321

Author: robincorcoran
Date: Mon, 06 Jan 2003 21:14

5 lines
1043 bytes

I'm not sure if this is the right forum to discuss this or not, but I'm trying to figure out from an eps file what it's clipping path is, using a text editor. Is this possible, and if so can someone please give me a push in the right direction?

Thanks,

Robin

Re: EPS Clipping Path

#1322

Author: Odysseus
Date: Tue, 07 Jan 2003 02:25

10 lines
1555 bytes

robincorcoran wrote:
> 
> I'm not sure if this is the right forum to discuss this or not, but I'm trying to figure out from an eps file what it's clipping path is, using a text editor. Is this possible, and if so can someone please give me a push in the right direction?
> 
It's hard to say without knowing something about how the EPS was
generated. But searching for the "clip" or "eoclip" operators might
well help you find a clipping path ... OTOH they may just lead you
through a maze of nested procedure definitions.

--Odysseus

Re: EPS Clipping Path

#1323

Author: Gernot Hoffmann
Date: Tue, 07 Jan 2003 13:08

37 lines
1566 bytes

Robin,

normally, curved clipping paths are made by Bezier curves.
These start always with

x0 y0 moveto.

Then comes one path segment by

x1 y1 x2 y2 x3 y3 curveto

The path continues either by curveto or by moveto
Finally

closepath
clip

In some programs moveto and curveto are abbreviated by m
and c:
/m moveto def
/c curveto def

If the path is created by a character then one will find
true charpath
clip

Here are some examples:
 <http://www.fho-emden.de/~hoffmann/pstutor22112002.pdf>

In fact, any closed path can be a clipping path.

The doc contains the references for recommended books
and for a program for editing/testing.

Or do you mean the BOUNDING BOX ?

Best regards --Gernot Hoffmann

Re: EPS Clipping Path

#1324

Author: robincorcoran
Date: Tue, 07 Jan 2003 14:48

5 lines
946 bytes

Thanks for the info Gernot, I do mean a clipping path. I know what my bounding box is, but I'm trying to find out if there is a clipping path, and if so, what is it.

Thanks,

Robin

Re: EPS Clipping Path

#1325

Author: Aandi Inston
Date: Wed, 08 Jan 2003 10:18

4 lines
950 bytes

In general, to get this information from a general EPS file, you need
a PostScript interpreter.

Aandi Inston

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