From: Marco Patzer <lists@homerow.info>
To: ntg-context@ntg.nl
Subject: Re: Shading to transparent using withshademethod
Date: Thu, 28 Jan 2016 15:34:44 +0100 [thread overview]
Message-ID: <20160128153444.2de05353@homerow> (raw)
In-Reply-To: <56AA1B69.6010802@wxs.nl>
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On Thu, 28 Jan 2016 14:45:13 +0100
Hans Hagen <pragma@wxs.nl> wrote:
> On 1/28/2016 1:53 PM, Marco Patzer wrote:
> > On Thu, 28 Jan 2016 12:33:39 +0100
> > Hans Hagen <pragma@wxs.nl> wrote:
> >
> >>>>> How to make transparent shadings work with the new mechanism?
> >>>>
> >>>> withtransparency (1,.5)
> >>>
> >>> However, this makes the entire shade transparent. How to shade
> >>> from one colour to transparent using withtransparency to achieve
> >>> an effect like in the example below?
> >>
> >> that isn't how shading works,
> >
> > …any longer. I just confirmed that it used to work on an older
> > installation. Just sayin'
>
> are you sure?
See the attached example. The shade seems to go from black to fully
transparent. So regardless of the background colour the shade looks
fine. I can't replicate this with the new mechanism.
Marco
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\startbuffer
\definecolor [trans] [a=multiply, t=1, s=1]
\setupbackgrounds [page] [background=color, backgroundcolor=lightgray]
\starttext
\contextversion\crlf
\startMPcode
path p; p:=fullsquare xyscaled (12cm, 12cm);
fill p
withshading("linear", ulcorner p, llcorner p)
withfromshadecolor \MPcolor{black}
withtoshadecolor \MPcolor{trans};
\stopMPcode
\stoptext
\stopbuffer
\starttext
\typebuffer\getbuffer
\stoptext
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next prev parent reply other threads:[~2016-01-28 14:34 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
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 [this message]
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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