[metapost] Better gradient and 'special'

Jesús Guillermo Andrade gandrade at usermail.com
Tue Mar 24 20:18:35 CET 2009

It seems very interesting what Mr. Siebenmann is suggesting: AFAIK  
there is no mention about the "special" command changes. Perhaps in  
the next version the will add it?. I wish I was an expert. The sad  
thing regarding the issue is that when I compare the same logo I did  
with a linear gradient against the same one produced by Adobe  
Illustrator, the metapost version is 4 times bigger.
Kind of strange right?

El 23/03/2009, a las 07:55 p.m., laurent at math.toronto.edu escribió:

> Hi all,
> In its version 3 of 1998, PostScript has provided
> NATIVE support for many sorts of varying coloring.
> This ranges from the simplest linear gradients, which
> J.G. Andrade currently wants, to colorings suitable for
> a smooth 3-D surface in slanting light ---
> (aka shading, blending,...). See
> http://www.adobe.com/devnet/postscript/pdfs/PLRM.pdf
> Chap 4.5-4.10.
> It seems that these features are not explicitly
> supported by MP. Thus my question:-- is it feasible to
> access these features using some sort of MP 'special'
> command. Unfortunately, I read in the MP manual that
> "The command
>     special <string expression>
> adds a line of text at the beginning of the next output
> file."  Which suggests that the MP special command
> still lacks the necessary power.  Is a more powerful
> 'special' planned?
> Since MP is preprocessor to PostScript, a potentially
> powerful 'special' mechanism (as for TeX) would seem
> almost mandatory.
> Comments please:)
> Laurent Siebenmann
> --
> http://tug.org/metapost/

Cuando a alguien se le cae algo, todo el mundo lo pisa en lugar de  
recogerlo. Ley de Dingle.
Jesús Guillermo Andrade (Abg.)
Gerente de Litigios y Corporativo. EDM. AC. API.
Andrade & Moreno S.C. (http://amlegal.wordpress.com/)

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