Hello list,
I am trying to make specific line pattern with SLD - offsetting triangle
from base line.
The result i got is in the following image: http://img42.com/Zvd1q
It looks ok for horizontal segments (green area), but not for others (in
red).
After trying to google I found that such patern can't be generated with
default SLD capabilities or geoserver extensions.
Also found that point symbols can have a space around to fill the polygon
(http://docs.geoserver.org/latest/en/user/styling/sld-extensions/margins.htm
l).
Would it be very hard to implement a space around for mark symbols in
GraficStroke of LineSymbolizer?
The idea of margins is in the following Picture: http://img42.com/ASV61
Maybe such capability (or similar) to achieve such result is aready
available?
p.s. the SLD I tried with offset:
<LineSymbolizer
uom="http://www.opengeospatial.org/se/units/metre";>
<Stroke>
<sld:CssParameter name="stroke-width">0</sld:CssParameter>
<sld:CssParameter name="stroke">#000000</sld:CssParameter>
</Stroke>
</LineSymbolizer>
<LineSymbolizer
uom="http://www.opengeospatial.org/se/units/metre";>
<Stroke>
<sld:CssParameter name="stroke-width">0.05</sld:CssParameter>
<sld:CssParameter name="stroke">#000000</sld:CssParameter>
</Stroke>
</LineSymbolizer>
<LineSymbolizer
uom="http://www.opengeospatial.org/se/units/metre";>
<Geometry>
<ogc:Function name="offset">
<ogc:PropertyName>geometry</ogc:PropertyName>
<ogc:Literal>0</ogc:Literal>
<ogc:Literal>-0.25</ogc:Literal>
</ogc:Function>
</Geometry>
<Stroke>
<GraphicStroke>
<Graphic>
<Mark>
<WellKnownName>triangle</WellKnownName>
<Fill>
<CssParameter name="fill">#000000</CssParameter>
</Fill>
<Stroke>
<sld:CssParameter
name="stroke">#000000</sld:CssParameter>
<CssParameter name="stroke-width">0.05</CssParameter>
</Stroke>
</Mark>
<Size>0.5</Size>
<Rotation>
-180
</Rotation>
</Graphic>
</GraphicStroke>
<CssParameter name="stroke-dasharray">0 2.25 0.5
0.25</CssParameter>
<CssParameter name="stroke-dashoffset">0</CssParameter>
</Stroke>
</LineSymbolizer>
Sincerely,
Paul
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