On Fri, Jul 27 2012, Peter Münster wrote:
> Does it make sense, to port http://modules.contextgarden.net/t-degrade
> to mkiv, or is there already an existing solution in ConTeXt to
> downsample jpeg-images on the fly?
I've played a bit with the converters:
--8<---------------cut here---------------start------------->8---
\startluacode
figures.converters["jpg"] = {
["lowres.jpg"] = function(oldname,newname,resolution)
os.execute"something"
print(table.serialize(figures.current()))
end
}
\stopluacode
\starttext
\externalfigure[hacker][width=0.5\textwidth, conversion=lowres.jpg]
\stoptext
--8<---------------cut here---------------end--------------->8---
2 questions:
- How can I get the width and/or the height of the figure inside the
function? "0.5\9extwidth " is not very useful on the lua-side...
- How can I specify a sub-directory where to place the converted images?
(not so important, just to avoid cluttering the current directory)
TIA for any help,
--
Peter
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