Hello Mike, I just tried your code. I'm afraid it looks like a bug in GeoTools: either in the render module involving the new content-specific Layer classes that have replaced the DefaultMapLayer, or in the swing module which might be mishandling the Layer class used for a GridCoverage2D object.
I've created an issue for it (http://jira.codehaus.org/browse/GEOT-3555) and will do my best to look into it in the next couple of days. Thanks for reporting the problem. Michael On 29 April 2011 13:30, Mike O'Toole <[email protected]> wrote: > Hi All, > > Can someone please point me to my error. I've been trying to display a > GridCoverage2D object in a JMapFrame. I keep getting the following casting > error. I know I can just use the reader object (and it works) to display the > image, however, I need to be able to display a passed GridCoverage2D object. > > Thanks for your help, > Mike > > Error: > 2011-04-28 16:09:54 SEVERE: org.geotools.feature.simple.SimpleFeatureImpl > cannot be cast to org.geotools.coverage.grid.GridCoverage2D > (StreamingRenderer.fireErrorEvent()) > java.lang.ClassCastException: org.geotools.feature.simple.SimpleFeatureImpl > cannot be cast to org.geotools.coverage.grid.GridCoverage2D > > org.geotools.renderer.lite.StreamingRenderer.processSymbolizers(StreamingRenderer.java:2219) > > org.geotools.renderer.lite.StreamingRenderer.process(StreamingRenderer.java:2158) > > org.geotools.renderer.lite.StreamingRenderer.drawPlain(StreamingRenderer.java:2014) > > org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:1934) > > org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:766) > org.geotools.swing.RenderingExecutor$Task.call(RenderingExecutor.java:149) > org.geotools.swing.RenderingExecutor$Task.call(RenderingExecutor.java:105) > java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) > java.util.concurrent.FutureTask.run(FutureTask.java:166) > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > java.lang.Thread.run(Thread.java:636) > > > Code: > > AbstractGridFormat format = GridFormatFinder.findFormat( rasterFile ); > AbstractGridCoverage2DReader reader = format.getReader(rasterFile); > GridCoverage2D grid = reader.read(null); > > CoordinateReferenceSystem crs = CRS.decode("EPSG:26911"); > > MapContext mapcontext = new MapContext(crs); > mapcontext.addLayer( grid, createGreyscaleStyle(1)); > > JMapFrame frame = new JMapFrame(mapcontext); > frame.setSize(965, 600); > frame.enableStatusBar(true); > frame.setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE); > frame.setVisible(true); > > private static Style createGreyscaleStyle(int band) { > ContrastEnhancement ce = sf.contrastEnhancement(ff.literal(1.0), > ContrastMethod.NORMALIZE); > SelectedChannelType sct = > sf.createSelectedChannelType(String.valueOf(band), ce); > > RasterSymbolizer sym = sf.getDefaultRasterSymbolizer(); > ChannelSelection sel = sf.channelSelection(sct); > sym.setChannelSelection(sel); > > return SLD.wrapSymbolizers(sym); > } > ------------------------------------------------------------------------------ > WhatsUp Gold - Download Free Network Management Software > The most intuitive, comprehensive, and cost-effective network > management toolset available today. Delivers lowest initial > acquisition cost and overall TCO of any competing solution. > http://p.sf.net/sfu/whatsupgold-sd > _______________________________________________ > Geotools-gt2-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
