Hi PIerre, question, are you reprojecting the raster data in the process? In other words, is your request coordinate reference system different than the data one?
We have had reports that something is not working in those cases, and the output remains blank, but haven't had time to look into it so far. Cheers Andrea On Fri, May 29, 2015 at 1:28 PM, VILLARD, Pierre < [email protected]> wrote: > Hello, > > I am not sure if I should use this mailing list to ask this question... > correct me if I am wrong. > > I have a geoTiff file containing U and V wind components in two separate > bands and I am trying to display it on geoserver with arrows. I am on > geoserver 2.6.2 and I am following the indications here : > http://geoserver.geo-solutions.it/edu/fr/wps/rendering_tx.html > > I have added the following style : > > <StyledLayerDescriptor version="1.0.0" > xmlns="http://www.opengis.net/sld"; xmlns:gml=" > http://www.opengis.net/gml"; > xmlns:ogc="http://www.opengis.net/ogc"; xmlns:xlink=" > http://www.w3.org/1999/xlink"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://www.opengis.net/sld > ./StyledLayerDescriptor.xsd"> > <NamedLayer> > <Name>contour_lines</Name> > <UserStyle> > <FeatureTypeStyle> > <Transformation> > <ogc:Function name="gs:RasterAsPointCollection"> > <ogc:Function name="parameter"> > <ogc:Literal>data</ogc:Literal> > </ogc:Function> > </ogc:Function> > </Transformation> > <Rule> > <TextSymbolizer> > <Label><![CDATA[ ]]></Label> <!-- fake label --> > <Graphic> > <Mark> > <WellKnownName>shape://carrow</WellKnownName> > <Fill> > <CssParameter name="fill">#000000</CssParameter> > </Fill> > </Mark> > <Size> > <ogc:Mul> > <ogc:Function name="sqrt"> > <ogc:Add> > <ogc:Mul> > <ogc:PropertyName>Band1</ogc:PropertyName> > <ogc:PropertyName>Band1</ogc:PropertyName> > </ogc:Mul> > <ogc:Mul> > <ogc:PropertyName>Band2</ogc:PropertyName> > <ogc:PropertyName>Band2</ogc:PropertyName> > </ogc:Mul> > </ogc:Add> > </ogc:Function> > <ogc:Literal>200</ogc:Literal> > </ogc:Mul> > </Size> > <Rotation> > <ogc:Function name="toDegrees"> > <ogc:Function name="atan2"> > <ogc:PropertyName>Band2</ogc:PropertyName> > <ogc:PropertyName>Band1</ogc:PropertyName> > </ogc:Function> > </ogc:Function> > </Rotation> > </Graphic> > <Priority> > <ogc:Add> > <ogc:Mul> > <ogc:PropertyName>Band1</ogc:PropertyName> > <ogc:PropertyName>Band1</ogc:PropertyName> > </ogc:Mul> > <ogc:Mul> > <ogc:PropertyName>Band2</ogc:PropertyName> > <ogc:PropertyName>Band2</ogc:PropertyName> > </ogc:Mul> > </ogc:Add> > </Priority> > </TextSymbolizer> > </Rule> > </FeatureTypeStyle> > </UserStyle> > </NamedLayer> > </StyledLayerDescriptor> > > And when I added my layer, I renamed the two bands in Band1 and Band2 and > selected the style. > > But when previewing the layer, it stays desperately blank without any > error message. > > Do you have any idea where I should look for to solve this issue ? > > Thanks ! > Pierre. > This message contains information that may be privileged or confidential > and is the property of the Capgemini Group. 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