Hi,
I'm having a problem when I try to display a layer using the
StreamingRenderer.
With this little test class:
static class MapPanel extends JPanel {
MapContext context;
StreamingRenderer renderer;
public MapPanel(MapContext context) {
this.context = context;
this.renderer = new StreamingRenderer();
renderer.setContext(context);
setBackground(Color.WHITE);
}
public void paint(Graphics g) {
super.paint(g);
if (context.getLayerCount() == 0) {
return;
}
Graphics2D g2d = (Graphics2D) g;
renderer.paint(g2d, new Rectangle(500, 500), context
.getAreaOfInterest());
}
}
when I try to display the panel with one layer, I get this error:
Nov 2, 2005 10:08:22 AM org.geotools.map.DefaultMapContext getLayerBounds
SEVERE: Data source and map context coordinate system differ, yet it
was not possible to get a projected bounds estimate...
org.opengis.referencing.operation.OperationNotFoundException: Bursa
wolf parameters required.
at
org.geotools.referencing.operation.DefaultCoordinateOperationFactory.createOperationStep(DefaultCoordinateOperationFactory.java:1097)
at
org.geotools.referencing.operation.DefaultCoordinateOperationFactory.createOperationStep(DefaultCoordinateOperationFactory.java:1163)
at
org.geotools.referencing.operation.DefaultCoordinateOperationFactory.createOperationStep(DefaultCoordinateOperationFactory.java:909)
at
org.geotools.referencing.operation.DefaultCoordinateOperationFactory.createOperation(DefaultCoordinateOperationFactory.java:232)
at org.geotools.referencing.CRS$1.factory(CRS.java:125)
at org.geotools.referencing.CRS.visit(CRS.java:143)
at org.geotools.referencing.CRS.transform(CRS.java:123)
at
org.geotools.map.DefaultMapContext.getLayerBounds(DefaultMapContext.java:499)
at
org.geotools.map.DefaultMapContext.getAreaOfInterest(DefaultMapContext.java:583)
at
repast.plugins.gisBaseLayerLoader.WizardTest$MapPanel.paint(WizardTest.java:109)
at javax.swing.JComponent.paintWithOffscreenBuffer(Unknown Source)
at javax.swing.JComponent.paintDoubleBuffered(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at
javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown
Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Based on some posts that I have seen I tried using this line:
FactoryFinder.getCoordinateOperationFactory(new Hints(
Hints.LENIENT_DATUM_SHIFT, Boolean.TRUE));
but it didn't help. Any thoughts would be most appreciated.
Thanks,
Tom
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