public static JGrassRegion getJGrassRegionFromGridCoverage(GridCoverage2D gridCoverage2D)
throws InvalidGridGeometryException, TransformException {
Envelope2D env = gridCoverage2D.getEnvelope2D();
GridEnvelope2D worldToGrid = gridCoverage2D.getGridGeometry().worldToGrid(env);
double xRes = env.getWidth() / worldToGrid.getWidth();
double yRes = env.getHeight() / worldToGrid.getHeight();
JGrassRegion region =
new JGrassRegion(env.getMinX(), env.getMaxX(), env.getMinY(), env.getMaxY(), xRes, yRes);
return region;
}
/**
* @see net.refractions.udig.render.internal.wmsc.basic#renderTile(Graphics2D graphics, WMTTile
* tile, CoordinateReferenceSystem crs, RasterSymbolizer style)
* @param graphics
* @param tile
* @param style
* @throws FactoryException
* @throws TransformException
* @throws RenderException
*/
private void renderTile(
Graphics2D graphics, WMTTile tile, RasterSymbolizer style, WMTRenderJob renderJob)
throws Exception {
if (tile == null || tile.getBufferedImage() == null) {
return;
}
// create a gridcoverage from the tile image
GridCoverageFactory factory = new GridCoverageFactory();
// get the tile bounds in the CRS the tiles were drawn in
ReferencedEnvelope tileBndsMercatorRef =
renderJob.projectTileToTileProjectedCrs(tile.getExtent());
GridCoverage2D coverage =
(GridCoverage2D)
factory.create(
"GridCoverage", tile.getBufferedImage(), tileBndsMercatorRef); // $NON-NLS-1$
Envelope2D coveragebounds = coverage.getEnvelope2D();
// bounds of tile
ReferencedEnvelope bnds =
new ReferencedEnvelope(
coveragebounds.getMinX(),
coveragebounds.getMaxX(),
coveragebounds.getMinY(),
coveragebounds.getMaxY(),
renderJob.getCrsTilesProjected());
// reproject tile bounds to map CRS
bnds = renderJob.projectTileProjectedToMapCrs(bnds);
// determine screen coordinates of tiles
Point upperLeft = getContext().worldToPixel(new Coordinate(bnds.getMinX(), bnds.getMinY()));
Point bottomRight = getContext().worldToPixel(new Coordinate(bnds.getMaxX(), bnds.getMaxY()));
Rectangle tileSize = new Rectangle(upperLeft);
tileSize.add(bottomRight);
// render
try {
CoordinateReferenceSystem crs = getContext().getCRS();
AffineTransform worldToScreen = RendererUtilities.worldToScreenTransform(bnds, tileSize, crs);
GridCoverageRenderer paint = new GridCoverageRenderer(crs, bnds, tileSize, worldToScreen);
paint.paint(graphics, coverage, style);
if (TESTING) {
// if(true){
/* for testing draw border around tiles */
graphics.setColor(Color.BLACK);
graphics.drawLine(
(int) tileSize.getMinX(),
(int) tileSize.getMinY(),
(int) tileSize.getMinX(),
(int) tileSize.getMaxY());
graphics.drawLine(
(int) tileSize.getMinX(),
(int) tileSize.getMinY(),
(int) tileSize.getMaxX(),
(int) tileSize.getMinY());
graphics.drawLine(
(int) tileSize.getMaxX(),
(int) tileSize.getMinY(),
(int) tileSize.getMaxX(),
(int) tileSize.getMaxY());
graphics.drawLine(
(int) tileSize.getMinX(),
(int) tileSize.getMaxY(),
(int) tileSize.getMaxX(),
(int) tileSize.getMaxY());
graphics.drawString(
tile.getId(), ((int) tileSize.getMaxX() - 113), ((int) tileSize.getMaxY() - 113));
}
} catch (Throwable t) {
WMTPlugin.log("Error Rendering tile. Painting Tile " + tile.getId(), t); // $NON-NLS-1$
}
}
