Diego Fdez. Durán wrote:
> I don't know if this questions are addressed to me but...
>
> Now I'm doing this[1], passing the reader directly to the
> StreamingRenderer. I don't know how StreamingRenderer works internally.
> I could download the StreamingRenderer from the SVN and take a look if
> you want (but the original dev probably knows better than me how to
> improve the renderer). I need to get the optimal performance and I'll be
> glad if I can help in the improvement of GeoTools in the process.
>
> Thanks.
>
So two observations:
1) This part looks to be slow; can you hard code the CRS for a moment
and see if you get a speed up? Not sure a good way to get the CRS but
possible we can ask Simone to store it in the metadata the reader can
get access to?
> GridCoverage2D coverage;
> try {
> coverage = (GridCoverage2D) reader.read(null);
> } catch (IOException ex) {
> ex.printStackTrace();
> return;
> }
>
> crs = coverage.getCoordinateReferenceSystem();
> RenderedImage image = coverage.getRenderedImage();
2) This part looks fine
> mapContext = new DefaultMapContext(crs);
> mapContext.addLayer(reader, st);
> renderer.setContext(mapContext);
But I want to know what happens next; when you use the renderer to draw
(or paint) what are you painting onto?
Jody
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