[Geoserver-users] SLD - Substitution in ColorMapEntry?

GeoServer GeoServer User
1

Hi,
is it possible to create an env substitution of the 'color' entry of the
'ColorMapEntry'?
    ...
      <FeatureTypeStyle>
        <Rule>
          
          <MinScaleDenominator>0</MinScaleDenominator>
          <MaxScaleDenominator>10000</MaxScaleDenominator>
          <RasterSymbolizer>
            <Opacity>
              <ogc:Function name="env">
                <ogc:Literal>Opa</ogc:Literal>
                <ogc:Literal>1.0</ogc:Literal>
               </ogc:Function>
            </Opacity>
            <ChannelSelection>
              <GrayChannel>
                <SourceChannelName>1</SourceChannelName>
              </GrayChannel>
            </ChannelSelection>
            <ColorMap type="values" extended="false">
              <ColorMapEntry color="#ff6600" quantity="0" label="0"
opacity="1" />
              <ColorMapEntry color="#ffffff" quantity="1" label="1"
opacity="0" />
            </ColorMap>
          </RasterSymbolizer>
        </Rule>
      </FeatureTypeStyle>

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2

On Tue, Jun 3, 2014 at 2:56 PM, wwsmith <wwsmith@anonymised.com> wrote:

Hi,
is it possible to create an env substitution of the 'color' entry of the
'ColorMapEntry'?

No, it's not possible, the SLD standard says those are static values.
It's always possible to develop a vendor extension to make them into
Expressions
(the env function is an expression) but it would of course require some
work.

Cheers
Andrea

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