Examples of org.geotools.coverage.grid.GridEnvelope2D

org.geotools.coverage.grid.GridEnvelope2D
Defines a range of two-dimensional grid coverage coordinates. This implementation extends {@link Rectangle} for interoperability with Java2D. Note that at the opposite of{@link GeneralGridEnvelope}, this class is mutable.
CAUTION: ISO 19123 defines {@linkplain #getHigh high} coordinates as inclusive.We follow this specification for all getters methods, but keep in mind that this is the opposite of Java2D usage where {@link Rectangle} maximal values are exclusive. @since 2.5 @source $URL$ @version $Id$ @author Martin Desruisseaux @see GeneralGridEnvelope

     */
    public static GeneralParameterValue[] createGridGeometryGeneralParameter( int width, int height, double north, double south,
            double east, double west, CoordinateReferenceSystem crs ) {
        GeneralParameterValue[] readParams = new GeneralParameterValue[1];
        Parameter<GridGeometry2D> readGG = new Parameter<GridGeometry2D>(AbstractGridFormat.READ_GRIDGEOMETRY2D);
        GridEnvelope2D gridEnvelope = new GridEnvelope2D(0, 0, width, height);
        Envelope env;
        if (crs != null) {
            env = new ReferencedEnvelope(west, east, south, north, crs);
        } else {
            DirectPosition2D minDp = new DirectPosition2D(west, south);

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        double[] westSouth = lowerCorner.getCoordinate();
        DirectPosition upperCorner = envelope.getUpperCorner();
        double[] eastNorth = upperCorner.getCoordinate();


        GridGeometry2D gridGeometry = gridCoverage.getGridGeometry();
        GridEnvelope2D gridRange = gridGeometry.getGridRange2D();
        int height = gridRange.height;
        int width = gridRange.width;


        AffineTransform gridToCRS = (AffineTransform) gridGeometry.getGridToCRS();
        double xRes = XAffineTransform.getScaleX0(gridToCRS);

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//            ReferencingFactoryFinder.getMathTransformFactory(null).createConcatenatedTransform(displayToLayer,
//                    currentContext.getLayer().mapToLayerTransform());
//            GridGeometry2D geom = new GridGeometry2D(range, displayToLayer, destinationCRS);
//            readGridGeometry2DParam.setValue(geom);


            GridEnvelope2D gridEnvelope = new GridEnvelope2D(0, 0, mapDisplay.getWidth(), mapDisplay.getHeight());
            org.opengis.geometry.Envelope env;
            double west= bounds.getMinX();
            double east= bounds.getMaxX();
            double south= bounds.getMinY();
            double north= bounds.getMaxY();

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            final IGeoResource geoResource = currentContext.getGeoResource();
            ReferencedEnvelope bounds = (ReferencedEnvelope) currentContext.getImageBounds();
            bounds=bounds.transform(destinationCRS, true);
            
            GridEnvelope range=new GridEnvelope2D(0,0, mapDisplay.getWidth(), mapDisplay.getHeight() );
            
            MathTransform displayToLayer=currentContext.worldToScreenMathTransform().inverse();
            ReferencingFactoryFinder.getMathTransformFactory(null).createConcatenatedTransform(displayToLayer, currentContext.getLayer().mapToLayerTransform()); 
            GridGeometry2D geom=new GridGeometry2D(range, displayToLayer, destinationCRS );

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    GridCoverage gcRaw = layer.read(null);
    
    
    if (sampleSize != null){
      int rSize = (int) Math.ceil(Math.sqrt(sampleSize.doubleValue()));
      GridEnvelope2D gridRange = new GridEnvelope2D(new Rectangle(0,0, rSize, rSize));
      GridGeometry2D world = new GridGeometry2D(gridRange,  new ReferencedEnvelope(gcRaw.getEnvelope()));
      DefaultParameterDescriptor<GridGeometry> gridGeometryDescriptor = new DefaultParameterDescriptor<GridGeometry>(
          AbstractGridFormat.READ_GRIDGEOMETRY2D.getName()
              .toString(), GridGeometry.class, null, world);

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      IProgressMonitor monitor) throws Exception{
    this.errorMessage = null;
    GridCoverage gcRaw = layer.read(null);
    if (sampleSize != null){
      int rSize = (int) Math.ceil(Math.sqrt(sampleSize.doubleValue()));
      GridEnvelope2D gridRange = new GridEnvelope2D(new Rectangle(0,0, rSize, rSize));
      GridGeometry2D world = new GridGeometry2D(gridRange,  new ReferencedEnvelope(gcRaw.getEnvelope()));
      DefaultParameterDescriptor<GridGeometry> gridGeometryDescriptor = new DefaultParameterDescriptor<GridGeometry>(
          AbstractGridFormat.READ_GRIDGEOMETRY2D.getName()
              .toString(), GridGeometry.class, null, world);

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  public Set<Double> computeUniqueValues(GridCoverageReader layer, Long sampleSize, IProgressMonitor monitor) throws IllegalArgumentException, IOException{
    this.errorMessage = null;
    GridCoverage gcRaw = layer.read(null);
    if (sampleSize != null){
      int rSize = (int) Math.ceil(Math.sqrt(sampleSize.doubleValue()));
      GridEnvelope2D gridRange = new GridEnvelope2D(new Rectangle(0,0, rSize, rSize));
      GridGeometry2D world = new GridGeometry2D(gridRange,  new ReferencedEnvelope(gcRaw.getEnvelope()));
      DefaultParameterDescriptor<GridGeometry> gridGeometryDescriptor = new DefaultParameterDescriptor<GridGeometry>(
          AbstractGridFormat.READ_GRIDGEOMETRY2D.getName()
              .toString(), GridGeometry.class, null, world);

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                      {
                        //
                        //create a suitable geometry for this request reusing the getmap (we could probably optimize)
                        //
                        parameter.setValue(new GridGeometry2D(
                            new GridEnvelope2D(integerRasterArea),
                            reader.getOriginalGridToWorld(PixelInCell.CELL_CENTER),
                            reader.getCrs()
                            ));
                      }

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        final int height=originalRange.getSpan(1);
        final int maxX=minX+(width<=5?width:5);
        final int maxY=minY+(height<=5?height:5);
        
        //we have to be sure that we are working against a valid grid range.
        final GridEnvelope2D testRange= new GridEnvelope2D(minX,minY,maxX,maxY);
        
        //build the corresponding envelope
        final MathTransform gridToWorldCorner =  reader.getOriginalGridToWorld(PixelInCell.CELL_CORNER);
        final GeneralEnvelope testEnvelope =CRS.transform(gridToWorldCorner,new GeneralEnvelope(testRange.getBounds()));
        testEnvelope.setCoordinateReferenceSystem(nativeCRS);
        
        parameters.put(AbstractGridFormat.READ_GRIDGEOMETRY2D.getName().toString(),
            new GridGeometry2D(testRange, testEnvelope));

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    /* INSTANCE */
    final GridGeometry2D gg;
    final int width, height;
    
    Tile(TileRequest req) {
        GridEnvelope2D gridEnv = new GridEnvelope2D(0, 0, req.width, req.height);
        this.gg = new GridGeometry2D(gridEnv, (org.opengis.geometry.Envelope)(req.bbox));
        // TODO: check that gg intersects graph area 
        LOG.debug("preparing tile for {}", gg.getEnvelope2D());
        // Envelope2D worldEnv = gg.getEnvelope2D();
        this.width = gridEnv.width;

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