Hello,
I'm getting crazy for displaying a tif on JMapPane, (GT2-2.3) my code:
MapContext map = new DefaultMapContext();
try {
map.setCoordinateReferenceSystem(CRS.decode("EPSG:4306"));
} catch (NoSuchAuthorityCodeException ex) {
ex.printStackTrace();
} catch (TransformException ex) {
ex.printStackTrace();
} catch (FactoryException ex) {
ex.printStackTrace();
}
File tiffFile = new File("/images/prova.tif");
GeoTiffReader rdr = (GeoTiffReader) ((new
GeoTiffFormat()).getReader(tiffFile));
GridCoverage tiffCov = null;
try {
tiffCov = rdr.read(null);
} catch (Exception e) {
e.printStackTrace();
} //We do not use any parametery here.
//between 0 and 255.
StyleBuilder sb = new StyleBuilder();
RasterSymbolizer rsDem = sb.createRasterSymbolizer();
org.geotools.styling.Style demStyle = sb.createStyle(rsDem);
map.addLayer(tiffCov, demStyle );
org.opengis.spatialschema.geometry.Envelope env =
tiffCov.getEnvelope();
com.vividsolutions.jts.geom.Envelope area = new
com.vividsolutions.jts.geom.Envelope(
env.getUpperCorner().getOrdinate(0), // X1
env.getLowerCorner().getOrdinate(0), // X2
env.getUpperCorner().getOrdinate(1), // Y1
env.getLowerCorner().getOrdinate(1)); // Y2
JMapPane m_MapPane = null;
try {
// enveloppe = map.getLayerBounds();
StreamingRenderer render = new StreamingRenderer();
// Create MapPane
m_MapPane = new JMapPane();
m_MapPane.setMapArea(area);
m_MapPane.setContext(map);
m_MapPane.setRenderer(render);
} catch (Exception e) {
e.printStackTrace();
}
this.getContentPane().add(m_MapPane,BorderLayout.CENTER);
-----> THE ERROR <------
11-Oct-2006 22:41:35 org.geotools.renderer.lite.StreamingRenderer
processStylers
SEVERE: null
java.lang.NullPointerException
at com.vividsolutions.jts.geom.Envelope.init(Envelope.java:254)
at
com.vividsolutions.jts.geom.Envelope.<init>(Envelope.java:186)
at
org.geotools.geometry.jts.ReferencedEnvelope.<init>(ReferencedEnvelope.java:112)
at
org.geotools.renderer.lite.gridcoverage2d.GridCoverageRenderer.<init>(GridCoverageRenderer.java:158)
at
org.geotools.renderer.lite.StreamingRenderer.renderRaster(StreamingRenderer.java:1719)
at
org.geotools.renderer.lite.StreamingRenderer.processSymbolizers(StreamingRenderer.java:1580)
at
org.geotools.renderer.lite.StreamingRenderer.process(StreamingRenderer.java:1524)
at
org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:1466)
at
org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:531)
at
org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:395)
at
org.geotools.gui.swing.JMapPane.paintComponent(JMapPane.java:414)
at javax.swing.JComponent.paint(JComponent.java:1005)
at javax.swing.JComponent.paintChildren(JComponent.java:842)
at javax.swing.JComponent.paint(JComponent.java:1014)
at javax.swing.JComponent.paintChildren(JComponent.java:842)
at javax.swing.JComponent.paint(JComponent.java:1014)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:559)
at javax.swing.JComponent.paintChildren(JComponent.java:842)
at javax.swing.JComponent.paint(JComponent.java:1014)
at
javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4963)
at
javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4916)
at
javax.swing.JComponent._paintImmediately(JComponent.java:4859)
at javax.swing.JComponent.paintImmediately(JComponent.java:4666)
at
javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:451)
at javax.swing.SystemEventQueueUtilities
$ComponentWorkRequest.run(SystemEventQueueUtilities.java:114)
at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at
java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Thanks for every suggestion.
Chiacchiera con i tuoi amici in tempo reale!
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