Examples of DirectPosition2D

org.apache.sis.geometry.DirectPosition2D
Holds the coordinates for a two-dimensional position on top of {@link Point2D}. This implementation is provided for inter-operability between Java2D and GeoAPI.
This class inherits {@linkplain #x x} and {@linkplain #y y} fields.But despite their names, they don't need to be oriented toward {@linkplain AxisDirection#EAST East} and{@linkplain AxisDirection#NORTH North} respectively. The (x,y) axis can have anydirection 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}.
{@note The rational for avoiding axis orientation restriction is that other DirectPositionimplementations do not have such restriction, and it would be hard to generalize. For example there is no clear "x" or "y" classification for North-East direction.}{@section Caution when used in collections}Do not mix instances of this class with ordinary {@link Point2D} instancesin a {@code HashSet} or as {@code HashMap} keys.It is not possible to meet both {@link Point2D#hashCode()} and {@link DirectPosition#hashCode()}contracts, and this class chooses to implements the later. Consequently, the {@link #hashCode()}method of this class is inconsistent with {@link Point2D#equals(Object)} but is consistent with{@link DirectPosition#equals(Object)}.
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 hash codes, like {@code ArrayList}, are safe in all cases.
@author Martin Desruisseaux (IRD, Geomatys) @since 0.3 (derived from geotk-2.0) @version 0.3 @module @see DirectPosition1D @see GeneralDirectPosition @see Point2D
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

Examples of org.geotools.geometry.DirectPosition2D

        CoordinateReferenceSystem crs1 = factory.createCoordinateReferenceSystem("4326");
        CoordinateReferenceSystem crs2 = factory.createCoordinateReferenceSystem("3005");


        // reproject
        MathTransform transform = CRS.findMathTransform(crs1, crs2,true);
        DirectPosition pos = new DirectPosition2D(48.417, 123.35);
        transform.transform(pos, null);
    }

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Examples of org.geotools.geometry.DirectPosition2D

        //
        // Set the ending position to be the same as the starting position,
        // except move "up" 1 unit along the "up" axis.
        //


        DirectPosition2D endingPosition = new DirectPosition2D((DirectPosition) position);
        endingPosition.setOrdinate(upAxisDimension, position.getOrdinate(upAxisDimension) + 1);
        geoCalc.setDestinationPosition(endingPosition);


        //
        // Now just ask for the azimuth, which is our convergence angle
        // estimate.

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Examples of org.geotools.geometry.DirectPosition2D

            // appo
            temp= new double[fc.numBands];
            
            // grid convergence angle manager
            if(fc.gridConvergenceAngleCorrectionNeeded){
                sourceCRSPosition = new DirectPosition2D(); 
                targetCRSPosition = new DirectPosition2D(fc.targetCRS);                
            }
        }

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Examples of org.geotools.geometry.DirectPosition2D

                    .createValue();
            final GeneralEnvelope originalEnvelope = reader.getOriginalEnvelope(coverageName);
            final GeneralEnvelope newEnvelope = new GeneralEnvelope(originalEnvelope);
            newEnvelope.setCoordinateReferenceSystem(reader
                    .getCoordinateReferenceSystem(coverageName));
            newEnvelope.add(new DirectPosition2D(newEnvelope.getMinimum(0) - 10, newEnvelope
                    .getMinimum(1) - 10));


            // Selecting the same gridRange
            GridEnvelope gridRange = reader.getOriginalGridRange(coverageName);
            gg.setValue(new GridGeometry2D(gridRange, newEnvelope));

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Examples of org.geotools.geometry.DirectPosition2D

        CoordinateReferenceSystem targetCRS = CRS.decode("EPSG:21781", false);// CH1903_LV03


        MathTransform transform = CRS.findMathTransform(sourceCRS, targetCRS, true);
        // test coordinate: Berne, old reference point
        // see http://www.swisstopo.admin.ch/internet/swisstopo/en/home/topics/survey/sys/refsys/switzerland.html
        DirectPosition2D source = new DirectPosition2D(sourceCRS, 46.9510827861504654, 7.4386324175389165);
        DirectPosition2D result = new DirectPosition2D();


        transform.transform(source, result);
        assertEquals(600000.0, result.x, 0.1);
        assertEquals(200000.0, result.y, 0.1);
    }

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Examples of org.geotools.geometry.DirectPosition2D

    protected DirectPosition[] readCoord2DFloat(int instancesCount)
        throws IOException {
        DirectPosition[] result = new DirectPosition[instancesCount];


        for (int inx = 0; inx < instancesCount; inx++) {
            result[inx] = new DirectPosition2D(readFloat(), readFloat());
        }


        return result;
    }

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Examples of org.geotools.geometry.DirectPosition2D

        throws IOException {
        DirectPosition[] result = null;
        result = new DirectPosition[instancesCount];


        for (int inx = 0; inx < instancesCount; inx++) {
            result[inx] = new DirectPosition2D(readDouble(), readDouble());
        }


        return result;
    }

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Examples of org.geotools.geometry.DirectPosition2D

    public static void assertTransformEquals2_2(final MathTransform transform,
                                                final double  x, final double  y,
                                                final double ex, final double ey)
            throws TransformException
    {
        final DirectPosition2D source = new DirectPosition2D(x,y);
        final DirectPosition2D target = new DirectPosition2D();
        assertSame(target, transform.transform(source, target));
        final String message = "Expected ("+ex+", "+ey+"), "+
                               "transformed=("+target.x+", "+target.y+")";
        assertEquals(message, ex, target.x, EPS);
        assertEquals(message, ey, target.y, EPS);

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Examples of org.geotools.geometry.DirectPosition2D

            "UNIT[\"degree\", 0.017453292519943295], "+
            "AXIS[\"Longitude\", EAST], "+
            "AXIS[\"Latitude\", NORTH]]");       
        // bounds from geotiff
        GeneralEnvelope geotiff = new GeneralEnvelope(source);
        geotiff.add(new DirectPosition2D(source,-179.9,-90.0));
        geotiff.add(new DirectPosition2D(source,180.0,89.9));
        
        Envelope transformed = CRS.transform(geotiff, target );
        assertNotNull( transformed );
        assertTrue( "clipped y",transformed.getUpperCorner().getOrdinate(1) > 88.0);
        assertTrue( "clipped y",transformed.getLowerCorner().getOrdinate(1) < -88.0);

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Examples of org.geotools.geometry.DirectPosition2D

        params.parameter("false_northing")     .setValue(  0.0  );
        transform = mtFactory.createParameterizedTransform(params);
        if (VERBOSE) {
            System.out.println(transform);
        }
        doTransform(new DirectPosition2D(-2.5, 51.37),
                    new DirectPosition2D(-278298.73, 5718482.24), transform);
    }

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