Hello, I am trying to get a SLD style to render three bands raster using SLD variable substitution (env)
At the moment I get it work with: <?xml version="1.0" encoding="ISO-8859-1"?> <StyledLayerDescriptor version="1.0.0" xsi:schemaLocation="http://www.opengis.net/sld StyledLayerDescriptor.xsd" xmlns="http://www.opengis.net/sld"; xmlns:ogc="http://www.opengis.net/ogc"; xmlns:xlink="http://www.w3.org/1999/xlink"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";> <NamedLayer> <Name>sentinel1</Name> <UserStyle> <Title>sentinel1</Title> <Abstract>A sample style that draws a raster, good for displaying imagery</Abstract> <FeatureTypeStyle> <Rule> <Name>nolabel</Name> <Title>Opaque Raster</Title> <Abstract>A raster with 100% opacity</Abstract> <RasterSymbolizer> <Opacity>1.0</Opacity> <ChannelSelection> <RedChannel> <SourceChannelName>1</SourceChannelName> <ContrastEnhancement> <Normalize> <VendorOption name="algorithm"> <ogc:Function name="env"> <ogc:Literal>algorithm</ogc:Literal> <ogc:Literal>StretchToMinimumMaximum</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='minValue'> <ogc:Function name="env"> <ogc:Literal>low1</ogc:Literal> <ogc:Literal>0</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='maxValue'> <ogc:Function name="env"> <ogc:Literal>high1</ogc:Literal> <ogc:Literal>0.013</ogc:Literal> </ogc:Function> </VendorOption> </Normalize> </ContrastEnhancement> </RedChannel> <GreenChannel> <SourceChannelName>2</SourceChannelName> <ContrastEnhancement> <Normalize> <VendorOption name="algorithm"> <ogc:Function name="env"> <ogc:Literal>algorithm</ogc:Literal> <ogc:Literal>StretchToMinimumMaximum</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='minValue'> <ogc:Function name="env"> <ogc:Literal>low2</ogc:Literal> <ogc:Literal>0</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='maxValue'> <ogc:Function name="env"> <ogc:Literal>high2</ogc:Literal> <ogc:Literal>0.093</ogc:Literal> </ogc:Function> </VendorOption> </Normalize> </ContrastEnhancement> </GreenChannel> <BlueChannel> <SourceChannelName>3</SourceChannelName> <ContrastEnhancement> <Normalize> <VendorOption name="algorithm"> <ogc:Function name="env"> <ogc:Literal>algorithm</ogc:Literal> <ogc:Literal>StretchToMinimumMaximum</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='minValue'> <ogc:Function name="env"> <ogc:Literal>low3</ogc:Literal> <ogc:Literal>10</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='maxValue'> <ogc:Function name="env"> <ogc:Literal>high3</ogc:Literal> <ogc:Literal>1600</ogc:Literal> </ogc:Function> </VendorOption> </Normalize> </ContrastEnhancement> </BlueChannel> </ChannelSelection> </RasterSymbolizer> </Rule> </FeatureTypeStyle> </UserStyle> </NamedLayer> </StyledLayerDescriptor> The problem is that I have to specify three "low" and "high" env values which is a bit of a hassle... I want to normalize values of high1 and high2 based on high3 using something similar as in SLD colormap ( <ogc:Literal>${env('high1', 'low1') / env('high3', 1600)/10000}</ogc:Literal> ) Is tried this way but still have not it working: <?xml version="1.0" encoding="ISO-8859-1"?> <StyledLayerDescriptor version="1.0.0" xsi:schemaLocation="http://www.opengis.net/sld StyledLayerDescriptor.xsd" xmlns="http://www.opengis.net/sld"; xmlns:ogc="http://www.opengis.net/ogc"; xmlns:xlink="http://www.w3.org/1999/xlink"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";> <NamedLayer> <Name>sentinel1</Name> <UserStyle> <Title>sentinel1</Title> <Abstract>A sample style that draws a raster, good for displaying imagery</Abstract> <FeatureTypeStyle> <Rule> <Name>nolabel</Name> <Title>Opaque Raster</Title> <Abstract>A raster with 100% opacity</Abstract> <RasterSymbolizer> <Opacity>1.0</Opacity> <ChannelSelection> <RedChannel> <SourceChannelName>1</SourceChannelName> <ContrastEnhancement> <Normalize> <VendorOption name="algorithm"> <ogc:Function name="env"> <ogc:Literal>algorithm</ogc:Literal> <ogc:Literal>StretchToMinimumMaximum</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='minValue'> <ogc:Function name="env"> <ogc:Literal>low1</ogc:Literal> <ogc:Literal>0</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='maxValue'> <ogc:Function name="env"> <ogc:Literal>high1</ogc:Literal> <ogc:Literal>${env('high1', 'low1') / env('high3', 1600)/10000}</ogc:Literal> </ogc:Function> </VendorOption> </Normalize> </ContrastEnhancement> </RedChannel> <GreenChannel> <SourceChannelName>2</SourceChannelName> <ContrastEnhancement> <Normalize> <VendorOption name="algorithm"> <ogc:Function name="env"> <ogc:Literal>algorithm</ogc:Literal> <ogc:Literal>StretchToMinimumMaximum</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='minValue'> <ogc:Function name="env"> <ogc:Literal>low2</ogc:Literal> <ogc:Literal>0</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='maxValue'> <ogc:Function name="env"> <ogc:Literal>high2</ogc:Literal> <ogc:Literal>${env('high2', 'low2') / env('high3', 1600)/10000}</ogc:Literal> </ogc:Function> </VendorOption> </Normalize> </ContrastEnhancement> </GreenChannel> <BlueChannel> <SourceChannelName>3</SourceChannelName> <ContrastEnhancement> <Normalize> <VendorOption name="algorithm"> <ogc:Function name="env"> <ogc:Literal>algorithm</ogc:Literal> <ogc:Literal>StretchToMinimumMaximum</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='minValue'> <ogc:Function name="env"> <ogc:Literal>low3</ogc:Literal> <ogc:Literal>10</ogc:Literal> </ogc:Function> </VendorOption> <VendorOption name='maxValue'> <ogc:Function name="env"> <ogc:Literal>high3</ogc:Literal> <ogc:Literal>1600</ogc:Literal> </ogc:Function> </VendorOption> </Normalize> </ContrastEnhancement> </BlueChannel> </ChannelSelection> </RasterSymbolizer> </Rule> </FeatureTypeStyle> </UserStyle> </NamedLayer> </StyledLayerDescriptor> Many thanks! Alberto -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Dynamic-Styling-three-bands-raster-tp5326744.html Sent from the GeoServer - User mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
