Hello all, I posted this question 2 months ago on GIS stackexchange, but no answer. Hoping someone on here might know. Thanks for your time.
I am creating contour lines of the ocean using the GEBCO gridded bathy data <https://www.gebco.net/data_and_products/gridded_bathymetry_data/> tiff (depth every 15 arcsecs) and a SDL style <https://docs.geoserver.org/stable/en/user/styling/sld/index.html> with LineSymbolizer <https://docs.geoserver.org/latest/en/user/styling/sld/reference/linesymbolizer.html>. All looks good apart from at the edge of the data where the contour lines close at the edges. Is there a way to get LineSymbolizer (and TextSymbolizer) not to render the isolines on the edge of the data? enter image description here <https://i.stack.imgur.com/lmHiY.png> |<?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>contour_dem</Name> <UserStyle> <Title>Bathymetry Contours</Title> <Abstract>Bathymetry contours produced from the GEBCO 15 arc-second gridded bathymetry</Abstract> <FeatureTypeStyle> <Transformation> <ogc:Function name="ras:Contour"> <ogc:Function name="parameter"> <ogc:Literal>data</ogc:Literal> </ogc:Function> <ogc:Function name="parameter"> <ogc:Literal>levels</ogc:Literal> <ogc:Literal>0</ogc:Literal> <ogc:Literal>-100</ogc:Literal> <ogc:Literal>-200</ogc:Literal> <ogc:Literal>-300</ogc:Literal> <ogc:Literal>-400</ogc:Literal> <ogc:Literal>-500</ogc:Literal> ... <ogc:Literal>-11000</ogc:Literal> <ogc:Literal>-12000</ogc:Literal> </ogc:Function> </ogc:Function> </Transformation> ... <Rule> <Name>low</Name> <Title>Low Res Contours</Title> <ogc:Filter> <ogc:Or> <ogc:PropertyIsEqualTo> <ogc:PropertyName>value</ogc:PropertyName> <ogc:Literal>-1000</ogc:Literal> </ogc:PropertyIsEqualTo> <ogc:PropertyIsEqualTo> <ogc:PropertyName>value</ogc:PropertyName> <ogc:Literal>-6000</ogc:Literal> </ogc:PropertyIsEqualTo> </ogc:Or> </ogc:Filter> <LineSymbolizer> <Stroke> <CssParameter name="stroke">#000000</CssParameter> <CssParameter name="stroke-width">1</CssParameter> </Stroke> </LineSymbolizer> <TextSymbolizer> <Label> <ogc:PropertyName>value</ogc:PropertyName> </Label> <Font> <CssParameter name="font-family">Arial</CssParameter> <CssParameter name="font-style">Normal</CssParameter> <CssParameter name="font-size">10</CssParameter> </Font> <LabelPlacement> <LinePlacement/> </LabelPlacement> <Halo> <Radius> <ogc:Literal>2</ogc:Literal> </Radius> <Fill> <CssParameter name="fill">#FFFFFF</CssParameter> <CssParameter name="fill-opacity">0.6</CssParameter> </Fill> </Halo> <Fill> <CssParameter name="fill">#000000</CssParameter> </Fill> <Priority>2000</Priority> <VendorOption name="followLine">true</VendorOption> <VendorOption name="repeat">100</VendorOption> <VendorOption name="maxDisplacement">50</VendorOption> <VendorOption name="maxAngleDelta">30</VendorOption> </TextSymbolizer> </Rule> </FeatureTypeStyle> </UserStyle> </NamedLayer> </StyledLayerDescriptor> |
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