Examples of org.geotools.geometry.DirectPosition2D

org.geotools.geometry.DirectPosition2D
Holds the coordinates for a two-dimensional position within some coordinate reference system.
Note 1:
This class inherits {@linkplain #x x} and {@linkplain #y y} fields. But despite their names,they don't need to be oriented toward {@linkplain org.opengis.referencing.cs.AxisDirection#EAST East} and {@linkplain org.opengis.referencing.cs.AxisDirection#NORTH North}. The (x,y) axis can have any orientation and should be understood as "ordinate 0" and "ordinate 1" values instead. This is not specific to this implementation; in Java2D too, the visual axis orientation depend on the {@linkplain java.awt.Graphics2D#getTransform affine transform in the graphics context}.
The rational for avoiding axis orientation restriction is that other {@link DirectPosition}implementation do not have such restriction, and it would be hard to generalize (what to do with {@linkplain org.opengis.referencing.cs.AxisDirection#NORTH_EAST North-East} direction?).

Note 2:
Do not mix instances of this class with ordinary {@link Point2D} instances in a{@link java.util.HashSet} or as {@link java.util.HashMap} keys. It is not possible tomeet both {@link Point2D#hashCode} and {@link DirectPosition#hashCode} contract, and this classchoose to implements the later. Concequently, {@link #hashCode} is inconsistent with{@link Point2D#equals} (but is consistent with {@link DirectPosition#equals}).
In other words, it is safe to add instances of {@code DirectPosition2D} in a{@code HashSet}, but it is unsafe to add them in a {@code HashSet}. Collections that do not rely on {@link Object#hashCode}, like {@link java.util.ArrayList}, are safe in all cases.
@since 2.0 @source $URL$ @version $Id$ @author Martin Desruisseaux (IRD) @see DirectPosition1D @see GeneralDirectPosition @see java.awt.geom.Point2D

        double finalRes = calculateResolution(mosaic);
        double percentual = Math.abs(initialRes - finalRes) / initialRes;
        Assert.assertTrue(percentual < TOLERANCE);


        // Check that on the center of the image there are nodata
        DirectPosition point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(),
                actual.getCenterX(), actual.getCenterY());
        double nodata = CoverageUtilities.getBackgroundValues(coverage1)[0];
        double result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertEquals(nodata, result, TOLERANCE);


        // Check that on the Upper Left border pixel there is valid data
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), actual.getMinX()
                + finalRes, actual.getMinY() + finalRes);
        result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Coverage and RenderedImage disposal

View Full Code Here

        double initialRes = calculateResolution(coverage1);
        double finalRes = calculateResolution(mosaic);
        Assert.assertEquals(initialRes, finalRes, TOLERANCE);


        // Check that on the Upper Right pixel of the image there are nodata
        DirectPosition point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(),
                actual.getMinX() + finalRes, actual.getMaxY() - finalRes);
        double nodata = CoverageUtilities.getBackgroundValues(coverage1)[0];
        double result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertEquals(nodata, result, TOLERANCE);


        // Check that on the Upper Left border pixel there is valid data
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), actual.getMinX()
                + finalRes, actual.getMinY() + finalRes);
        result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Coverage and RenderedImage disposal

View Full Code Here

        double finalRes = calculateResolution(mosaic);
        double percentual = Math.abs(initialRes - finalRes) / initialRes;
        Assert.assertTrue(percentual < TOLERANCE);


        // Check that on the center of the image there are nodata
        DirectPosition point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(),
                actual.getCenterX(), actual.getCenterY());
        double nodata = CoverageUtilities.getBackgroundValues(coverage1)[0];
        double result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertEquals(nodata, result, TOLERANCE);


        // Check that on the Upper Left border pixel there is valid data
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), actual.getMinX()
                + finalRes, actual.getMinY() + finalRes);
        result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Coverage and RenderedImage disposal

View Full Code Here

        double finalRes = calculateResolution(mosaic);
        double percentual = Math.abs(initialRes - finalRes) / initialRes;
        Assert.assertTrue(percentual < TOLERANCE);


        // Check that on the center of the image there are nodata
        DirectPosition point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(),
                actual.getCenterX(), actual.getCenterY());
        double nodata = CoverageUtilities.getBackgroundValues(coverage1)[0];
        double result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertEquals(nodata, result, TOLERANCE);


        // Check that on the Upper Left border pixel there is valid data
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), actual.getMinX()
                + finalRes, actual.getMinY() + finalRes);
        result = ((int[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Coverage and RenderedImage disposal

View Full Code Here


        // Check that the final Coverage resolution is equal to that of the first coverage
        double finalRes = calculateResolution(mosaic);


        // Check that on the center of the image there is valid data
        DirectPosition point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(),
                expected.getCenterX(), expected.getCenterY());
        double nodata = 0;
        double result = ((byte[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Check that on the Upper Left border pixel there is valid data
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), expected.getMinX()
                + finalRes, expected.getMinY() + finalRes);
        result = ((byte[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Check that on the Upper Right border pixel there is valid data
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), expected.getMaxX()
                - finalRes, expected.getMinY() + finalRes);
        result = ((byte[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Coverage and RenderedImage disposal

View Full Code Here

        // Calculate the mosaic resolution
        double res = calculateResolution(mosaic);


        // Ensure that no black lines are present on the border between the input images
        // Check that on the center of the image there is valid data
        DirectPosition point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), -540,
                -84);
        double nodata = 0;
        double result = ((byte[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), -540 - res, -84);
        result = ((byte[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);
        point = new DirectPosition2D(mosaic.getCoordinateReferenceSystem(), -540 + res, -84);
        result = ((byte[]) mosaic.evaluate(point))[0];
        Assert.assertNotEquals(nodata, result, TOLERANCE);


        // Coverage and RenderedImage disposal
        mosaic.dispose(true);

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            // that will be used to make the request
            AffineTransform at = RendererUtilities.worldToScreenTransform(bbox, new Rectangle(width, height));
            Point2D screenPos = new Point2D.Double(x, y);
            Point2D worldPos = new Point2D.Double(x, y);
            at.inverseTransform(screenPos, worldPos);
            DirectPosition2D fromPos = new DirectPosition2D(worldPos.getX(), worldPos.getY());
            DirectPosition2D toPos = new DirectPosition2D();
            MathTransform mt = CRS.findMathTransform(bbox.getCoordinateReferenceSystem(), getReader().requestCRS, true);
            mt.transform(fromPos, toPos);
            GetMapRequest mapRequest = getReader().mapRequest;
            return getReader().getFeatureInfo(toPos, infoFormat, featureCount, mapRequest);
        } catch(IOException e) {

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        } else if(dim == 2){
            int ordinateIdx = 0;
            // HACK: not sure if its correct to assign ordinates 0 to 0 and 1 to
            // 1 or it should be inferred from the crs
            for (int coordIndex = 0; coordIndex < coordCount; coordIndex++) {
                dps[coordIndex] = new DirectPosition2D(crs);
                dps[coordIndex].setOrdinate(0, values[ordinateIdx].doubleValue());
                dps[coordIndex].setOrdinate(1, values[ordinateIdx + 1].doubleValue());
                ordinateIdx += crsDimension;
            }
        } else {

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        if (position.length < 2) {
            dp = (crs != null) ? new DirectPosition1D(crs) : new DirectPosition1D();
            dp.setOrdinate(0, position[0].doubleValue());
        } else if (position.length < 3 ){
            dp = (crs != null) ? new DirectPosition2D(crs) : new DirectPosition2D();
            dp.setOrdinate(0, position[0].doubleValue());
            dp.setOrdinate(1, position[1].doubleValue());
        } else {
          dp = (crs != null) ? new DirectPosition3D(crs) : new DirectPosition3D();
            dp.setOrdinate(0, position[0].doubleValue());

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     * Gets the mouse position in world coordinates.
     * 
     * @return world position
     */
    public DirectPosition2D getWorldPos() {
        return new DirectPosition2D(
                worldCoords.getCoordinateReferenceSystem(),
                worldCoords.x, worldCoords.y);
    }

View Full Code Here

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