Hello to the community, I followed the following guide in order to visualize the Wind-Barbs.
https://geoserver.geo-solutions.it/edu/en/multidim/accessing_multidim/rtx/wind_barbs.html Unfortunately, this tutorial doesn't work. The original style causes errors, and I changed it to the following one which is a valid style. <?xml version="1.0" encoding="UTF-8"?> <StyledLayerDescriptor xmlns="http://www.opengis.net/sld"; xmlns:sld="http://www.opengis.net/sld"; xmlns:gml="http://www.opengis.net/gml"; xmlns:ogc="http://www.opengis.net/ogc"; version="1.0.0"> <NamedLayer> <Name>windbarbs</Name> <UserStyle> <Name>Default Styler</Name> <Title>windbarbs</Title> <FeatureTypeStyle> <sld:Name>name</sld:Name> <sld:Transformation> <ogc:Function name="ras:RasterAsPointCollection"> <ogc:Function name="parameter"> <ogc:Literal>data</ogc:Literal> </ogc:Function> <ogc:Function name="parameter"> <ogc:Literal>emisphere</ogc:Literal> <ogc:Literal>True</ogc:Literal> </ogc:Function> <ogc:Function name="parameter"> <ogc:Literal>interpolation</ogc:Literal> <ogc:Literal>InterpolationBilinear</ogc:Literal> </ogc:Function> <ogc:Function name="parameter"> <ogc:Literal>scale</ogc:Literal> <ogc:Function name="Categorize"> <ogc:Function name="env"> <ogc:Literal>wms_scale_denominator</ogc:Literal> </ogc:Function> <ogc:Literal>16</ogc:Literal> <ogc:Literal>100000</ogc:Literal> <ogc:Literal>8</ogc:Literal> <ogc:Literal>500000</ogc:Literal> <ogc:Literal>2</ogc:Literal> <ogc:Literal>1000000</ogc:Literal> <ogc:Literal>0.5</ogc:Literal> <ogc:Literal>5000000</ogc:Literal> <ogc:Literal>0.2</ogc:Literal> <ogc:Literal>10000000</ogc:Literal> <ogc:Literal>0.1</ogc:Literal> <ogc:Literal>20000000</ogc:Literal> <ogc:Literal>0.05</ogc:Literal> <ogc:Literal>60000000</ogc:Literal> <ogc:Literal>0.02</ogc:Literal> </ogc:Function> </ogc:Function> </ogc:Function> </sld:Transformation> <Rule> <PointSymbolizer> <Graphic> <Mark> <WellKnownName>windbarbs://default( <ogc:Function name="sqrt"> <ogc:Add> <ogc:Mul> <ogc:PropertyName>u-component_of_wind_height_above_ground</ogc:PropertyName> <ogc:PropertyName>u-component_of_wind_height_above_ground</ogc:PropertyName> </ogc:Mul> <ogc:Mul> <ogc:PropertyName>v-component_of_wind_height_above_ground</ogc:PropertyName> <ogc:PropertyName>v-component_of_wind_height_above_ground</ogc:PropertyName> </ogc:Mul> </ogc:Add> </ogc:Function>)[m/s]?emisphere </WellKnownName> <Stroke> <CssParameter name="stroke">000000</CssParameter> <CssParameter name="stroke-width">1</CssParameter> </Stroke> </Mark> <Size> <ogc:Function name="Categorize"> <ogc:Function name="sqrt"> <ogc:Add> <ogc:Mul> <ogc:PropertyName>u-component_of_wind_height_above_ground</ogc:PropertyName> <ogc:PropertyName>u-component_of_wind_height_above_ground</ogc:PropertyName> </ogc:Mul> <ogc:Mul> <ogc:PropertyName>v-component_of_wind_height_above_ground</ogc:PropertyName> <ogc:PropertyName>v-component_of_wind_height_above_ground</ogc:PropertyName> </ogc:Mul> </ogc:Add> </ogc:Function> <ogc:Literal>8</ogc:Literal> <ogc:Literal>1.543333332</ogc:Literal> <ogc:Literal>32</ogc:Literal> </ogc:Function> </Size> <Rotation> <ogc:Function name="Categorize"> <ogc:Function name="sqrt"> <ogc:Add> <ogc:Mul> <ogc:PropertyName>u-component_of_wind_height_above_ground</ogc:PropertyName> <ogc:PropertyName>u-component_of_wind_height_above_ground</ogc:PropertyName> </ogc:Mul> <ogc:Mul> <ogc:PropertyName>v-component_of_wind_height_above_ground</ogc:PropertyName> <ogc:PropertyName>v-component_of_wind_height_above_ground</ogc:PropertyName> </ogc:Mul> </ogc:Add> </ogc:Function> <ogc:Literal>0</ogc:Literal> <ogc:Literal>1.543333332</ogc:Literal> <ogc:Function name="toDegrees"> <ogc:Function name="atan2"> <ogc:PropertyName>u-component_of_wind_height_above_ground</ogc:PropertyName> <ogc:PropertyName>v-component_of_wind_height_above_ground</ogc:PropertyName> </ogc:Function> </ogc:Function> </ogc:Function> </Rotation> </Graphic> </PointSymbolizer> <PointSymbolizer> <Graphic> <Mark> <WellKnownName>circle</WellKnownName> <Fill> <CssParameter name="fill">#ff0000</CssParameter> </Fill> </Mark> <sld:Size>3</sld:Size> </Graphic> </PointSymbolizer> </Rule> </FeatureTypeStyle> </UserStyle> </NamedLayer> </StyledLayerDescriptor> and the error message is the following one : *code="internalError" Rendering process failed Failed to evaluate the process function, error is: java.lang.illegalArguementException: The specified dimensional parameter is non-positive.* I am not sure, but I understand that the style doesn't recognize the proper columns U/V of the table with the names: v-component_of_wind_height_above_ground u-component_of_wind_height_above_ground U, V Components published properly at the coverage step as described at the tutorial. Configuration: Geoserver : 2.14.2 Modules: ImageI/O-Ext GDAL Coverage Extension gs-gdal GridCoverage2DReader 1.1.28 GRIB Coverage Format gs-grib GridCoverageMultiDimReader 20.2 GeoServer Web Coverage Service 1.1 gs-wcs1_1 2.14.2 GeoServer Web Coverage Service 2.0 gs-wcs2_0 2.14.2 GeoServer Web Feature Service gs-wfs 2.14.2 GeoServer Web Coverage Service 1.0 gs-wcs1_0 2.14.2 -- Sent from: http://osgeo-org.1560.x6.nabble.com/GeoServer-User-f3786390.html _______________________________________________ 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 If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
