Hi! I'm having a hard time using the StreamingRenderer (GeoTools 2.7.2). It throws an exception:
SEVERE: Could not find 'rotation' in the FeatureType (http://www.opengis.net/gml:Flag) org.geotools.filter.IllegalFilterException: Could not find 'rotation' in the FeatureType (http://www.opengis.net/gml:Flag) at org.geotools.renderer.lite.StreamingRenderer.createBBoxFilters(StreamingRenderer.java:1508) at org.geotools.renderer.lite.StreamingRenderer.queryLayer(StreamingRenderer.java:1005) at org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:1919) at org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:773) at org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:581) To explain what I've done. I parse a GeoJSON string and creates a FeatureCollection from it. The collection is created using the SimpleFeatureBuilder (creating SimpleFeatures with a SimpleFeatureType). The type is also created by looking at the properties in my GeoJSON. The style used for rendering is read from an SLD file. The problem seems to be that StreamingRenderer throws this Exception if the GeoJSON (or in this case the Feature I want to render) is missing any attributes defined in the SLD. The part of the SLD which makes this crash and burn is: <Rule> <ogc:Filter> <ogc:PropertyIsEqualTo> <ogc:PropertyName>type</ogc:PropertyName> <ogc:Literal>arrow_end</ogc:Literal> </ogc:PropertyIsEqualTo> </ogc:Filter> <PointSymbolizer> <Graphic> <ExternalGraphic> <OnlineResource xlink:type="simple" xlink:href="images/arrow_end.png"/> <Format>image/png</Format> </ExternalGraphic> <Rotation><ogc:PropertyName>rotation</ogc:PropertyName></Rotation> </Graphic> </PointSymbolizer> </Rule> I parse and try to render the following feature: {"type":"FeatureCollection","features":[{"type":"Feature","id":"OpenLayers.Feature.Vector_207", "properties":{"type":"pnt_pumpe"},"geometry":{"type":"Point","coordinates":[486483.61761134,6479993.5908865]}}]} This makes the StreamingRenderer throw this Exception and exit. Adding 'rotation' to the JSON above sort of solves the problem, but the main question remains: Why do the features sent to the StreamingRenderer have to contain every property defined in the SLD (or so it seems)? The rule above doesn't even apply to the feature I'm trying to render. regards, Håvard N.
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