From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: ConTeXt color to text
Date: Mon, 03 Sep 2012 20:36:12 +0200 [thread overview]
Message-ID: <5044F89C.7030803@wxs.nl> (raw)
In-Reply-To: <5044E1F6.50109@gmx.net>
On 3-9-2012 18:59, Peter Rolf wrote:
> Hi,
>
> for a batch command (ImageMagick) I need to convert ConTeXt colors to a
> text representation (e.g. rgb 'red' -> 'rgb(255,0,0)'; same for color
> models cmyk and gray).
> What is the best way to get (read only) access to the color channels of
> a defined color?
\colorcomponents{red}
\colorvalue{red}
in next beta:
\startluacode
-- inspect(attributes.colors.spec("red"))
-- table={
-- ["b"]=0,
-- ["c"]=0,
-- ["model"]="cmyk",
-- ["g"]=0,
-- ["k"]=0,
-- ["m"]=1,
-- ["r"]=1,
-- ["s"]=0.3,
-- ["y"]=1,
-- }
\stopluacode
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next prev parent reply other threads:[~2012-09-03 18:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-03 16:59 Peter Rolf
2012-09-03 18:36 ` Hans Hagen [this message]
2012-09-04 9:18 ` Peter Rolf
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