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updated plotAsPng() documentation in 02_RSS.pm

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git-svn-id: svn://svn.code.sf.net/p/fhem/code/trunk@4192 2b470e98-0d58-463d-a4d8-8e2adae1ed80
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borisneubert
2013-11-09 15:45:10 +00:00
parent 0da9256f7f
commit b3ac99f92a
1 changed files with 3 additions and 2 deletions
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fhem/FHEM/02_RSS.pm
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@@ -680,9 +680,10 @@ RSS_CGI(){
<i>Special uses</i><p>
You can display <a href="#SVG">SVG</a> plots with the aid of the helper function <code>plotAsPng()</code> (in 98_SVG.pm). Example:<p>
You can display <a href="#SVG">SVG</a> plots with the aid of the helper function <code>plotAsPng(&lt;name&gt;[,&lt;zoom&gt;[,&lt;offset&gt;]])</code> (in 98_SVG.pm). Examples:<p>
<code>
img 20 30 0.6 png data { plotAsPng("mySVGPlot") }
img 20 30 0.6 png data { plotAsPng("mySVGPlot") }<BR>
img 20 30 0.6 png data { plotAsPng("mySVGPlot","qday",-1) }
</code>
<p>
This requires the perl module Image::LibRSVG and librsvg. Debian-based systems can install these with <code>apt-get install libimage-librsvg-perl</code>.