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Message from discussion shfill: /ShadingType 2, computed parameters
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ken  
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 More options Mar 9 2010, 8:43 am
Newsgroups: comp.lang.postscript
From: ken <k...@spamcop.net>
Date: Tue, 9 Mar 2010 13:43:46 -0000
Local: Tues, Mar 9 2010 8:43 am
Subject: Re: shfill: /ShadingType 2, computed parameters
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In article <be046966-b3b4-452b-80b6-a2df7b6d6b69
@q15g2000yqj.googlegroups.com>, jdawise...@gmail.com says...

> I am failing to get shfill to work for me. Below is a simplified
> version of what is going on: several of the numbers (1 7 div) are
> actually references to other PostScript variables the value of which
> are not yet known. Please, what's wrong?

For a type 0 (sampled) function the DataSource is defined to be either a
string or a positionable file providing the sample data. You have
provided a PostScript procedure. This will raise a typecheck error.

For a Type 0 function you *must* supply a BitsPerSample value, which is
not present.

You cannot use a PostScript function as the basis for the data in a
Function dictionary.

                                Ken


 
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