[Geoserver-devel] [JIRA] (GEOS-9434) SLDService can generate invalid SLD for rasters with a single value

_Failed_to_Retrieve · December 17, 2019, 4:55pm

Andrea Aime created an issue

SLDService can generate invalid SLD for rasters with a single value

Issue Type:	Bug
Assignee:	Andrea Aime
Created:	17/Dec/19 5:55 PM
Priority:	Medium
Reporter:	Andrea Aime

Classifying a raster that has a uniform value (e.g., all pixels at zero) causes the generation of a SLD with a single color map entry, e.g.:


&lt;?xml version="1.0" encoding="UTF-8"?&gt;&lt;sld: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"&gt;
&lt;sld:NamedLayer&gt;
&lt;sld:Name&gt;farm:raster&lt;/sld:Name&gt;
&lt;sld:UserStyle&gt;
&lt;sld:Name&gt;Default Styler&lt;/sld:Name&gt;
&lt;sld:FeatureTypeStyle&gt;
&lt;sld:Name&gt;name&lt;/sld:Name&gt;
&lt;sld:Rule&gt;
&lt;sld:RasterSymbolizer&gt;
&lt;sld:ColorMap type="intervals"&gt;
&lt;sld:ColorMapEntry color="#000000" opacity="0" quantity="10.0"/&gt;
&lt;/sld:ColorMap&gt;
&lt;sld:ContrastEnhancement/&gt;
&lt;/sld:RasterSymbolizer&gt;
&lt;/sld:Rule&gt;
&lt;/sld:FeatureTypeStyle&gt;
&lt;/sld:UserStyle&gt;
&lt;/sld:NamedLayer&gt;
&lt;/sld:StyledLayerDescriptor&gt;

However, that’s not a valid SLD, unless the mode is “values” (interpolation and interval based ones need at least two entries)

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