Here it goes:
File tiffFile = new File(rasterPath);
WorldImageReader wiR = (WorldImageReader) ((new
WorldImageFormat()).getReader(tiffFile));
GridCoverage imgCov = null;
try {
imgCov = wiR.read(null);
} catch (Exception e) {
e.printStackTrace();
}
StyleBuilder sb = new StyleBuilder();
RasterSymbolizer rsDem = sb.createRasterSymbolizer();
org.geotools.styling.Style demStyle = sb.createStyle(rsDem);
map.addLayer(imgCov, demStyle);
org.opengis.spatialschema.geometry.Envelope env = imgCov.getEnvelope();
Envelope envelope = new Envelope(env.getUpperCorner().getOrdinate(0),
env.getLowerCorner().getOrdinate(0),
env.getUpperCorner().getOrdinate(1),
env.getLowerCorner().getOrdinate(1));
ReferencedEnvelope area = new ReferencedEnvelope(envelope, map
.getCoordinateReferenceSystem());
where:
cr = CRS.decode("EPSG:3003");
map = new DefaultMapContext(cr);
and the JMapPane mp:
mp.setMapArea(shapeEnvelop);
GTRenderer renderer;
if (false) {
renderer = new StreamingRenderer();
HashMap hints = new HashMap();
hints.put("memoryPreloadingEnabled", Boolean.TRUE);
renderer.setRendererHints(hints);
} else {
renderer = new StreamingRenderer();
}
mp.setRenderer(renderer);
mp.setContext(map);
Cheers
Andrea
* [A.D. 23/01/07 19:16], Andrea Aime <[EMAIL PROTECTED]> probably wrote:
> Andrea Antonello ha scritto:
> >Alright, I finally build the 2.3.x branch and tried to visualize the
> >famous geotiff. After a very long while it goes out of heap space:
> >
> >Jan 23, 2007 6:57:56 PM org.geotools.renderer.lite.StreamingRenderer paint
> >SEVERE: Java heap space
> >java.lang.OutOfMemoryError: Java heap space
> > at javax.media.jai.RasterAccessor.<init>(RasterAccessor.java:791)
> > at
> >
> > com.sun.media.jai.opimage.FilteredSubsampleOpImage.computeRect(FilteredSubsampleOpImage.java:696)
> > at
> > javax.media.jai.GeometricOpImage.computeTile(GeometricOpImage.java:683)
> > at
> >
> > com.sun.media.jai.util.SunTileScheduler.scheduleTile(SunTileScheduler.java:914)
> > at javax.media.jai.OpImage.getTile(OpImage.java:1138)
> > at javax.media.jai.RenderedOp.getTile(RenderedOp.java:2257)
> > at
> >
> > com.sun.media.jai.iterator.RectIterCSM.setDataBuffer(RectIterCSM.java:70)
> > at
> >
> > com.sun.media.jai.iterator.RectIterFallback.<init>(RectIterFallback.java:147)
> > at com.sun.media.jai.iterator.RectIterCSM.<init>(RectIterCSM.java:36)
> > at
> >
> > com.sun.media.jai.iterator.RectIterCSMByte.<init>(RectIterCSMByte.java:25)
> > at
> > javax.media.jai.iterator.RectIterFactory.create(RectIterFactory.java:72)
> > at org.geotools.coverage.grid
> > ...
> >
> >
> >I assigned 512 megs to the virtual machine, so it really shouldn't go
> >out of heap for a map of 1.7 megs (compressed, but however...).
>
> Crazy, what's the code you used to display that raster?
> Cheers
> Andrea
>
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