From: Hans Hagen <pragma@wxs.nl>
To: ntg-context@ntg.nl
Subject: Re: Shading to transparent using withshademethod
Date: Thu, 28 Jan 2016 09:43:24 +0100 [thread overview]
Message-ID: <56A9D4AC.6030100@wxs.nl> (raw)
In-Reply-To: <20160127220532.6a017853@homerow>
On 1/27/2016 10:05 PM, Marco Patzer wrote:
> Hi,
>
> some months ago the withshading, withfromshadecolor etc. have apparently been
> replaced by the more general withshademethod, withshadevector,
> withshadecolors, etc. methods.
>
> I have issues converting the old withshading code to the withshademethod
> version. The old code had no problems shading to transparent:
>
> \definecolor [trans] [a=multiply, t=.5, s=.5]
> \starttext
> \startMPcode
> path p; p:=fullsquare xyscaled (8cm, 8cm);
> fill p
> withshading("linear", ulcorner p, llcorner p)
> withfromshadecolor \MPcolor{black}
> withtoshadecolor \MPcolor{trans};
> \stopMPcode
> \stoptext
>
> The new code appears to work in general, but only if no shading to
> transparent is being used:
>
> \definecolor [trans] [a=multiply, t=.5, s=.5]
> \starttext
> \startMPcode
> % works
> fill fullcircle scaled 10cm withcolor \MPcolor{trans};
>
> fill fullsquare xyscaled (15cm, 15cm)
> withshademethod "linear"
> withshadevector (0,1)
> % works
> withshadecolors (red,\MPcolor{blue})
> % fails
> %% withshadecolors (red,\MPcolor{trans})
> ;
> \stopMPcode
> \stoptext
>
> How to make transparent shadings work with the new mechanism?
withtransparency (1,.5)
> Marco
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : http://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
>
--
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Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
next prev parent reply other threads:[~2016-01-28 8:43 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-27 21:05 Marco Patzer
2016-01-28 8:43 ` Hans Hagen [this message]
2016-01-28 10:45 ` Marco Patzer
2016-01-28 11:33 ` Hans Hagen
2016-01-28 12:53 ` Marco Patzer
2016-01-28 13:45 ` Hans Hagen
2016-01-28 14:34 ` Marco Patzer
2016-01-28 17:26 ` Hans Hagen
2016-01-28 18:09 ` Marco Patzer
2016-01-28 11:29 ` Hans Hagen
2016-01-28 13:02 ` Marco Patzer
2016-01-28 15:16 ` Hans Hagen
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