for LENIENT_DATUM_SHIFT parameter, do not forget to write
crs = CRS.decode("EPSG:27200", true)
instead of
crs = CRS.decode("EPSG:27200")
On 10/10/06, Gabriella Turek <[EMAIL PROTECTED]> wrote:
I've tried to recompile my 2.2 code to 2.3_M0 and it does not (not
unexpected), so I've been trying to modify my code to make it work, but
I've had no success.
With 2.2 I was able to plot georeferenced images, shape files and
features in a CSV table even though, strangely enough, I get
the error:
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
even though everything seems to plot correctly.
For 2.3_MO I am not having any luck. What is no longer working is the
plotting of the georeferenced images, which in 2.2 I did via
URL imgURL = (new File("data/nz2_2.jpg")).toURL();
GridCoverage gc = wir.read (null);
CoordinateReferenceSystem crs = gc.getCoordinateReferenceSystem();
crs = CRS.decode("EPSG:27200");
and in 2.3_M0 I must do via:
BufferedImage image = ImageIO.read(new File("data/nz2_2.jpg"));
WorldFile wf = new WorldFile(new File("data/nz2_2.jgw"));
WritableRaster wr = image.getRaster();
GeneralEnvelope envelope = new GeneralEnvelope(new
Rectangle2D(wr.getBounds());
GridCoverageFactory factory =
org.geotools.coverage.FactoryFinder.getGridCoverageFactory(null);
GridCoverage2D gc = factory.create("Map", wr, envelope);
CoordinateReferenceSystem crs = CRS.decode("EPSG:27200");
gc = factory.create(gc.getName(), gc.getRenderedImage(),
crs, gc.getGridGeometry().getGridToCoordinateSystem(),
gc.getSampleDimensions(), null, null);
In this case I get
Oct 10, 2006 3:37:21 PM 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 StreamingRenderer.renderRaster(StreamingRenderer.java:1717)
at StreamingRenderer.processSymbolizers(StreamingRenderer.java:1578)
at StreamingRenderer.process(StreamingRenderer.java:1522)
at StreamingRenderer.processStylers(StreamingRenderer.java:1464)
at StreamingRenderer.paint(StreamingRenderer.java:529)
at StreamingRenderer.paint(StreamingRenderer.java:393)
at JMapPane.paintComponent (JMapPane.java:396)
at javax.swing.JComponent.paint(JComponent.java:1005)
at javax.swing.JComponent.paintChildren(JComponent.java:842)
etc, etc
Nothing gets plotted, and more over the scale of what gets plotted (data
from the shapefiles) seems to be all wrong.
Any ideas? Thanx
gaby
--
***************************************************************
** Gabriella Turek [EMAIL PROTECTED] **
** National Institute of Water & Atmospheric Research (NIWA) **
** PO Box 8602 Christchurch New Zealand +64-3-348-8987x3724 **
***************************************************************
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