From: Hans Hagen <j.hagen@xs4all.nl>
To: ntg-context@ntg.nl
Subject: Re: degrade module
Date: Thu, 14 Feb 2019 21:44:31 +0100 [thread overview]
Message-ID: <e0ebd4f0-9992-cba6-86ac-a6a78168018a@xs4all.nl> (raw)
In-Reply-To: <87lg2ikt6e.fsf@a16n.net>
On 2/14/2019 9:32 PM, Peter Münster wrote:
> On Thu, Feb 14 2019, Lutz Haseloff wrote:
>
>> I wanted to use the degrade module with recent ConTeXt and LuaTeX.
>
> Hi Lutz,
>
> Could you please check, if the module grph-downsample.lua could fit your
> needs?
>
>
>> The minimal example from the degrade manual gives an error.
>> See the attached log.
>> Is there any chance to get the module working again?
>
> There is always a chance. The question is just: who will afford the
> efforts...
> Please check first the downsample module, and then let's see, if you
> still need this very old and hackish degrade module.
you can plug in code
\startluacode
figures.converters["png"]["lowres.png"] =
function(oldname,newname,resolution)
os.execute(string.format('gm convert "%s" "%s"',oldname,newname))
end
figures.converters["jpg"]["lowres.jpg"] =
function(oldname,newname,resolution)
os.execute(string.format('gm convert "%s" "%s"',oldname,newname))
end
-- figures.suffixes["lowres.png"] = figures.suffixes.png -- suffix is
automatically done
\stopluacode
\enabletrackers[graphics*]
\starttext
\externalfigure[t:/sources/mill.png][conversion=lowres.png]
\externalfigure[t:/sources/hacker.jpg][conversion=lowres.jpg]
\stoptext
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next prev parent reply other threads:[~2019-02-14 20:44 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 19:49 Lutz Haseloff
2019-02-14 20:22 ` Marco Patzer
2019-02-14 20:37 ` Peter Münster
2019-02-14 20:32 ` Peter Münster
2019-02-14 20:41 ` Wolfgang Schuster
2019-02-14 21:00 ` Peter Münster
2019-02-14 20:44 ` Hans Hagen [this message]
2019-02-15 6:56 ` Lutz Haseloff
2019-02-15 7:24 ` Henning Hraban Ramm
2019-02-15 7:25 ` Marco Patzer
2019-02-15 9:22 ` Lutz Haseloff
2019-02-15 10:08 ` Marco Patzer
2019-02-15 10:48 ` Lutz Haseloff
2019-02-15 11:23 ` Marco Patzer
2019-02-17 11:14 ` Peter Münster
2019-02-18 9:13 ` Marco Patzer
2019-02-18 10:03 ` Peter Münster
2019-02-18 15:25 ` Alan Braslau
2019-02-18 21:09 ` Peter Münster
2019-02-18 21:23 ` Alan Braslau
2019-02-18 22:50 ` Peter Münster
2019-02-18 23:21 ` Alan Braslau
2019-02-19 9:42 ` Peter Münster
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