[NTG-context] Re: Including SVG manipulating color or rewrite in MP

[juh+ntg-context--- via ntg-context <ntg-context@ntg.nl>]

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Thanks a lot. Works for me.

Am 12. Dezember 2024 17:43:44 MEZ schrieb Mikael Sundqvist <mickep@gmail.com>:
>Hi,
>
>Not sure exactly what you are after, but this could work (I saved your
>svg as juh.svg)
>
>/Mikael
>
>\startuseMPgraphic{juh}{juhcolor}
>
>picture juh ;
>
>juh := lmt_svg [
>  filename = "juh.svg",
>  origin   = true ] ;
>
>draw juh ysized OverlayHeight withcolor \MPvar{juhcolor} ;
>
>\stopuseMPgraphic
>
>\setupMPvariables[juh][juhcolor=darkred]
>
>\defineoverlay[juh][\useMPgraphic{juh}]
>
>\starttext
>
>\framed[align=normal,width=7cm,background=juh]{\samplefile{ward}}
>
>\setupMPvariables[juh][juhcolor=darkblue]
>
>\framed[align=normal,width=7cm,background=juh]{\samplefile{ward}}
>
>\stoptext
>
>On Thu, Dec 12, 2024 at 4:57 PM juh+ntg-context--- via ntg-context
><ntg-context@ntg.nl> wrote:
>>
>> Dear all,
>>
>> I have near to zero knowledge about MPgraphics, so I always use SVG
>> files from various sources.
>>
>>
>> I do something like this:
>>
>> \defineoverlay[pic][\externalfigure[form.svg][width=14em]]
>> \defineframed
>>    [textcircledA]
>>    [
>>      frame=off,
>>      strut=yes,
>>      rulethickness=0.0pt,
>>      background=pic,
>>      location=top,]
>>
>>
>> \textcircledA{\externalfigure[icon.svg][width=280px]}
>>
>>
>> The form.svg appears as background of icon.svg.
>>
>> Now I want to change the stroke color in the svg.
>>
>> It is very simple:
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <!-- Created with Inkscape (http://www.inkscape.org/) -->
>> <svg width="20.887mm" height="17.613mm" version="1.1" viewBox="0 0
>> 20.887 17.613" xmlns="http://www.w3.org/2000/svg">
>>   <g transform="translate(152.66 -101.94)">
>>    <path d="m-150.94 114.93c-0.5424-1.3121-0.58209-2.9382 0.18256-5.2163
>> 2.3566-7.0175 11.139-8.7098 15.878-3.0594 7.6978 8.7032-11.506
>> 16.052-16.06 8.2756" fill="none" stroke="#99bcdb" stroke-linecap="round"
>> stroke-width="2"/>
>>   </g>
>> </svg>
>>
>> I can simply open it in inkscape set the color an save it under a
>> meaningful filename, but I would like to set the color in the context file.
>>
>> I tried to define the overlay pic with \includesvgbuffer but I can't get
>> it to work.
>>
>> \startbuffer[svg]
>> <svg width="20.887mm" height="17.613mm" version="1.1" viewBox="0 0
>> 20.887 17.613" xmlns="http://www.w3.org/2000/svg">
>>   <g transform="translate(152.66 -101.94)">
>>    <path d="m-150.94 114.93c-0.5424-1.3121-0.58209-2.9382 0.18256-5.2163
>> 2.3566-7.0175 11.139-8.7098 15.878-3.0594 7.6978 8.7032-11.506
>> 16.052-16.06 8.2756" fill="none" stroke="MyColor" stroke-linecap="round"
>> stroke-width="2"/>
>>   </g>
>> </svg>
>> \stopbuffer
>>
>> \defineoverlay[pic][\includesvgbuffer[svg][offset=1bp]]
>>
>> Nothing happens, no form appears in the overlay.
>>
>> I saw an example with \startstopuseMPgraphic in the Wiki.
>>
>> \startuseMPgraphic{MPtextcircle}
>>    path p;
>>    p := fullcircle xscaled OverlayWidth
>>                    yscaled OverlayWidth;
>>    setbounds currentpicture to p ;
>> %  p:= p shifted (0,StrutDepth/2.7);
>>    draw p withpen pencircle scaled 25pt
>>           withcolor OverlayLineColor;
>> \stopuseMPgraphic
>>
>> \defineoverlay[OLtextcircle][\useMPgraphic{MPtextcircle}]
>>
>> This works for me.
>>
>> Is it possible to use a svgbuffer in a overlay definition?
>>
>> Or do I have to convert the SVG code to MP?
>>
>> Is there a converter?
>>
>> TIA
>> juh
>> ___________________________________________________________________________________
>> If your question is of interest to others as well, please add an entry to the Wiki!
>>
>> maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
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>> ___________________________________________________________________________________
>___________________________________________________________________________________
>If your question is of interest to others as well, please add an entry to the Wiki!
>
>maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
>webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
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>wiki     : https://wiki.contextgarden.net
>___________________________________________________________________________________

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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________