I need a little explanation :)
When you say:
> 2>
> In your code you are providing the traight coverage to the map pane.
> To gain access to decimation on reading and/or overviews you need to
> provide the map pane with the reader directly not with the coverage.
> The renderer wil then ask the reader to supply the best resolutio
> navailable exploiting overviews/decimation
Now I'm doing this:
[...]
AbstractGridCoverage2DReader reader;
try {
reader = new ImageMosaicReader(file, new
Hints(Hints.FORCE_LONGITUDE_FIRST_AXIS_ORDER, Boolean.TRUE));
} catch (IOException ex) {
ex.printStackTrace();
return;
}
crs = coverage.getCoordinateReferenceSystem();
StyleBuilder styleBuilder = new StyleBuilder();
ColorMap cm = styleBuilder.createColorMap(
new String[]{"0", "255"},
new double[]{0, 255},
new Color[]{ new Color(0, 0, 0),
new Color(255, 255, 255)},
ColorMap.TYPE_RAMP); // XXX: ?
RasterSymbolizer rs = styleBuilder.createRasterSymbolizer(cm, 1);
Style st = styleBuilder.createStyle(rs);
mapContext = new DefaultMapContext(crs);
mapContext.addLayer(reader, st);
renderer.setContext(mapContext);
[...]
I don't understand when you say:
> To gain access to decimation on reading and/or overviews you need to
> provide the map pane with the reader directly not with the coverage.
I thought than I was doing it already.
Thanks!
--
Diego Fdez. Durán <[EMAIL PROTECTED]> | http://www.goedi.net
GPG : 925C 9A21 7A11 3B13 6E43 50DB F579 D119 90D2 66BB
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