You may want to open a bug report for this one; the module maintainer
for raster stuff is usually faster to respond to Jira issues than to email.
Jody
> Hi all:
>
> I'm using ImageMosaic to load a GeoTiff index shapefile (9 GeoTiffs,
> total size of 146889x92337). If I display the resulting map using
> DisplayJAI I get an optimal performance but I need to use
> StreamingRenderer.render method to display multiple layers above the
> raster image. With StreamingRenderer.render I get really poor
> performance. Am I using GeoTools in the right way?
>
> P.S.- I think that I'm missunderstanding (or not understanding at all the
> RasterSimbolizer part) because I get some kind of inverted colors.
>
> Thanks in advance.
>
> -- Here is my code (I'm using GeoTools 2.3.5)
>
> public class PanelGeoMap extends JPanel implements MouseMotionListener {
>
> private class PanelMap extends JPanel {
>
> @Override
> public void paint(Graphics g) {
> try {
> Graphics2D g2d = (Graphics2D) g;
> Rectangle rectangle = new Rectangle(getSize());
>
> //System.out.println("Map size (px): " + rectangle.height
> + "x" + rectangle.width);
>
> renderer.paint(g2d, rectangle, mapContext.getLayerBounds());
> } catch (IOException ex) {
>
> Logger.getLogger(PanelGeoMap.class.getName()).log(Level.SEVERE,
> null, ex);
> }
> }
> }
>
> private PanelMap panelMap;
> private JScrollPane scrollPaneMap;
>
> private Dimension preferredSizeMaximum;
>
> private CoordinateReferenceSystem crs;
> private GTRenderer renderer;
> private Envelope env;
> private DefaultMapContext mapContext;
>
> public PanelGeoMap() {
> renderer = new StreamingRenderer();
>
> File file = null;
> JFileChooser fc = new JFileChooser();
> int ret = fc.showOpenDialog(this);
>
> if (ret == JFileChooser.APPROVE_OPTION) {
> file = fc.getSelectedFile();
> } else {
> System.exit(0);
> }
>
> AbstractGridCoverage2DReader reader;
> try {
> //reader = new GeoTiffReader(file, new
> Hints(Hints.FORCE_LONGITUDE_FIRST_AXIS_ORDER, Boolean.TRUE));
> reader = new ImageMosaicReader(file, new
> Hints(Hints.FORCE_LONGITUDE_FIRST_AXIS_ORDER, Boolean.TRUE));
> } catch (IOException ex) {
> ex.printStackTrace();
> return;
> }
>
> GridCoverage2D coverage;
> try {
> coverage = (GridCoverage2D) reader.read(null);
> } catch (IOException ex) {
> ex.printStackTrace();
> return;
> }
>
> crs = coverage.getCoordinateReferenceSystem();
> env = coverage.getEnvelope();
> RenderedImage image = coverage.getRenderedImage();
>
> 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);
>
> RenderingHints hints = new
> RenderingHints(RenderingHints.KEY_RENDERING,
> RenderingHints.VALUE_RENDER_SPEED);
> renderer.setJava2DHints(hints);
> Map renderParams = new HashMap();
> renderParams.put("optimizedDataLoadingEnabled", new Boolean(true));
> renderer.setRendererHints(renderParams);
>
> int width = image.getWidth();
> int height = image.getHeight();
>
> /* Debug */
> JFrame frameJAI = new JFrame("DisplayJAI");
> frameJAI.getContentPane().add(new JScrollPane(new
> DisplayJAI(image)));
> frameJAI.setVisible(true);
>
> System.out.println("Image size: " + width + "x" + height);
>
> panelMap = new PanelMap();
> panelMap.addMouseMotionListener(this);
> preferredSizeMaximum = new Dimension(width, height);
> panelMap.setPreferredSize(preferredSizeMaximum);
>
> scrollPaneMap = new JScrollPane(panelMap);
>
> scrollPaneMap.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
>
> scrollPaneMap.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
> scrollPaneMap.setAutoscrolls(true);
>
> add(scrollPaneMap, BorderLayout.CENTER);
> }
>
> public void zoomIn() {
> Dimension preferredSizeActual = panelMap.getPreferredSize();
>
> panelMap.setPreferredSize(new Dimension(preferredSizeActual.width
> - 2000, preferredSizeActual.height - 2000));
> panelMap.revalidate();
> }
>
> public void zoomOut() {
> Dimension preferredSizeActual = panelMap.getPreferredSize();
> }
>
> public void mouseDragged(MouseEvent e) {
> System.out.println("Dragging " + e.getX() + " " + e.getY());
> Rectangle r = new Rectangle(e.getX(), e.getY(), 1, 1);
> scrollPaneMap.scrollRectToVisible(r);
> }
>
> public void mouseMoved(MouseEvent e) {
>
> }
> }
>
>
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