Thank you all for your help. First i tried the grph-downsample.lua script. Unfortunately i get an error message grph-downsample.lua:31: bad argument #2 to 'format' (number has no integer representation) See attached log file.
Greetings Lutz
Am 14. Februar 2019 21:44:31 MEZ schrieb Hans Hagen <j.ha...@xs4all.nl>:
>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
>
>
>
>-----------------------------------------------------------------
> Hans Hagen | PRAGMA ADE
> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
>-----------------------------------------------------------------
>___________________________________________________________________________________
>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://context.aanhet.net
>archive : https://bitbucket.org/phg/context-mirror/commits/
>wiki : http://contextgarden.net
>___________________________________________________________________________________
verkleinert-downsample.log
Description: Binary data
___________________________________________________________________________________ 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://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
