[Qgis-developer] SVG symbols in QGIS with modifiable colors

[Andreas Neumann]

 Hi Otto,

 Have you tried using presentation attributes only instead of the style 
 attribute that mixes everything?

 It may be that QGIS only looks into the fill, stroke and stroke-width 
 attributes and not in the style attribute.

 The way Inkscape exports SVG is a bit of a mess. It also exports way 
 too many style attributes (where there are defaults that you could omit) 
 with unnecessary repeats (over and over again). A manual SVG code would 
 easily be 1/4 of the size that Inkscape generates. But there is an 
 option to output an "optimized" or "optimiertes" SVG file where you can 
 choose to use "Stil nach XML" (Style to XML).

 Hope this helps,
 Andreas

 On Thu, 19 Jul 2012 09:52:30 +0200, Otto Dassau wrote:
> Hi,
>
> I tried to follow the howtos in the web about defining colors for svg 
> with
> param(fill), param(outline) and param(stroke-width).
>
> <svg width="100%" height="100%">
> <rect fill="param(fill) #ff0000" stroke="param(outline) #00ff00"
> stroke-width="param(stroke-width) 10" width="100" height="100"> 
> </rect>
> </svg>
>
> I used a copy from the svg /usr/share/qgis/svg/gpsicons/tree.svg. It 
> looks a
> little different:
>
> [...]
>
> 
> style="font-size:12px;stroke:#000000;stroke-width:3;fill:#a7a5a5;fill-opacity:
>
> 
> 1;stroke-miterlimit:4;stroke-dasharray:none;stroke-linejoin:miter;stroke-linecap:butt"
>      d="M 56.010357,6.2503568 L 30.572857,43.031607 L 
> 37.729107,43.031607 L
>      23.666607,63.344107 L 33.072857,63.344107 L 18.291607,84.719107 
> L
>      46.510357,84.719107 L 46.510357,99.812857 L 65.541607,99.812857 
> L
>      65.541607,84.687857 L
> [...]
>
> All I managed to change is the fill value with the syntax below, but 
> it
> doesn't work for stroke and stroke width.
>
> [...]
>
> 
> style="font-size:12px;stroke:param(outline);stroke-width:param(stroke-width);
>
> 
> fill:param(fill);fill-opacity:1;stroke-miterlimit:4;stroke-dasharray:none;
>      stroke-linejoin:miter;stroke-linecap:butt"
>      d="M 56.010357,6.2503568 L 30.572857,43.031607 L 
> 37.729107,43.031607 L
>      23.666607,63.344107 L 33.072857,63.344107 L 18.291607,84.719107 
> L
>      46.510357,84.719107 L 46.510357,99.812857 L 65.541607,99.812857 
> L
>      65.541607,84.687857
> [...]
>
> Has the syntax changed? Or how does it work with more complex svgs. I 
> also
> created a svg with inkscape, it shows the same syntax as tree.svg.
>
> Thanks a lot
> Otto
>
>
>
> _______________________________________________
> Qgis-developer mailing list
> Qgis-developer at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-developer

-- 
 --
 Andreas Neumann
 Böschacherstrasse 10A
 8624 Grüt (Gossau ZH)
 Switzerland