Goodrmoning,
i've a problem adding a layer to the actual MapContext.
I try to load a raster file (.tiff .tfw), to create a Style, to create a
DefaultMapLayer and to add it to the MapContext.
This is my code :
File rasterFile = new File(rasterFileName);
StreamGridCoverageExchange gce = new StreamGridCoverageExchange();
GridCoverageReader reader = gce.getReader( rasterFile );
GridCoverage gcDem = reader.read( null );
StyleBuilder sb = new StyleBuilder();
RasterSymbolizer rsDem = sb.createRasterSymbolizer();
rsDem.setOpacity(sb.literalExpression(0.5));
Style demStyle = sb.createStyle( rsDem );
context.addLayer( gcDem, demStyle );
I've seen that creating a layer with the default style (Style demStyle =
sb.createStyle() ) i have no error but the image is not painted. Using the
above code instead i receive this message
*org.geotools.renderer.j2d.StyledMapRenderer$1 layerAdded
GRAVE: Error adding map layer
java.lang.UnsupportedOperationException: Not yet implemented
at org.geotools.cv.SampleDimension.list(SampleDimension.java:485)
at org.geotools.cv.SampleDimension.<init>(SampleDimension.java:293)
at
org.geotools.cv.SampleDimension.fromGeoAPI(SampleDimension.java:1492)
at org.geotools.gc.GridCoverage.fromGeoAPI(GridCoverage.java:1692)
at
org.geotools.renderer.j2d.RenderedLayerFactory.createRecoloredGrid(RenderedLayerFactory.java:513)
at
org.geotools.renderer.j2d.RenderedLayerFactory.processSymbolizers(RenderedLayerFactory.java:466)
at
org.geotools.renderer.j2d.RenderedLayerFactory.create(RenderedLayerFactory.java:256)
at
org.geotools.renderer.j2d.StyledMapRenderer.addLayer(StyledMapRenderer.java:185)
at
org.geotools.renderer.j2d.StyledMapRenderer$1.layerAdded(StyledMapRenderer.java:138)
at
org.geotools.map.DefaultMapContext.fireMapLayerListListenerLayerAdded(DefaultMapContext.java:843)
at
org.geotools.map.DefaultMapContext.addLayer(DefaultMapContext.java:195)
at
org.geotools.map.DefaultMapContext.addLayer(DefaultMapContext.java:298)
at
org.geotools.map.DefaultMapContext.addLayer(DefaultMapContext.java:219)*
**
The big problem is that i receive this error only sometimes, while
somethimes everything works correct !
I hope someone had the same problem and can help me.
Best regards,
Giovanni
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