Package org.opengis.referencing.operation

Examples of org.opengis.referencing.operation.CoordinateOperation

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        GeneralEnvelope gridEnvelopeBboxCRS = null;
        if (bboxCRs instanceof GeographicCRS) {
            try {
                CoordinateOperationFactory cof = CRS.getCoordinateOperationFactory(true);

                final CoordinateOperation operation = cof.createOperation(gridEnvelope
                        .getCoordinateReferenceSystem(), bboxCRs);
                gridEnvelopeBboxCRS = CRS.transform(operation, gridEnvelope);
            } catch (Exception e) {
                // this may happen, there is nothing we can do about it, we just
                // use the back transformed envelope to be more lenient about
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        // Gets a first estimation using an algorithm capable to take singularity in account
        // (North pole, South pole, 180� longitude). We will expand this initial box later.
       
        CoordinateOperationFactory coordinateOperationFactory = CRS.getCoordinateOperationFactory(lenient);

        final CoordinateOperation operation = coordinateOperationFactory.createOperation(crs, targetCRS);
        final GeneralEnvelope transformed = CRS.transform(operation, this);
        transformed.setCoordinateReferenceSystem(targetCRS);

       // Now expands the box using the usual utility methods.
       
        final ReferencedEnvelope3D target = new ReferencedEnvelope3D(transformed);
        final MathTransform transform = operation.getMathTransform();
        JTS.transform(this, target, transform, numPointsForTransformation);
        //smuggle back third coordinate
        target.expandToInclude(0,0,this.minz);
        target.expandToInclude(0,0,this.maxz);
       
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         * Gets a first estimation using an algorithm capable to take singularity in account
         * (North pole, South pole, 180� longitude). We will expand this initial box later.
         */
        CoordinateOperationFactory coordinateOperationFactory = CRS.getCoordinateOperationFactory(lenient);

        final CoordinateOperation operation = coordinateOperationFactory.createOperation(crs, targetCRS);
        final GeneralEnvelope transformed = CRS.transform(operation, this);
        transformed.setCoordinateReferenceSystem(targetCRS);

        /*
         * Now expands the box using the usual utility methods.
         */
        final ReferencedEnvelope target = new ReferencedEnvelope(transformed);
        final MathTransform transform = operation.getMathTransform();
        JTS.transform(this, target, transform, numPointsForTransformation);

        return target;
    }
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         * Gets a first estimation using an algorithm capable to take singularity in account
         * (North pole, South pole, 180� longitude). We will expand this initial box later.
         */
        CoordinateOperationFactory coordinateOperationFactory = CRS
                .getCoordinateOperationFactory(lenient);
        CoordinateOperation operation1 = coordinateOperationFactory.createOperation(
                sourceEnvelope.getCoordinateReferenceSystem(), DefaultGeographicCRS.WGS84);
        MathTransform transform1 = operation1.getMathTransform();
        final CoordinateOperation operation2 = coordinateOperationFactory.createOperation(
                DefaultGeographicCRS.WGS84_3D, targetCRS);
        MathTransform transform2 = operation2.getMathTransform();

        for( int t = 0; t < npoints; t++ ){
            double dx = scaleX * t;
            double dy = scaleY * t;
           
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         * (North pole, South pole, 180� longitude). We will expand this initial box later.
         */
        CoordinateOperationFactory coordinateOperationFactory = CRS
                .getCoordinateOperationFactory(lenient);
        CoordinateReferenceSystem sourceCRS = sourceEnvelope.getCoordinateReferenceSystem();
        CoordinateOperation operation1 = coordinateOperationFactory.createOperation(
                sourceCRS, DefaultGeographicCRS.WGS84_3D);
        MathTransform transform1 = operation1.getMathTransform();
        final CoordinateOperation operation2 = coordinateOperationFactory.createOperation(
                DefaultGeographicCRS.WGS84, targetCRS);
        MathTransform transform2 = operation2.getMathTransform();
   
        for( int t = 0; t < npoints; t++ ){
            double dx = scaleX * t;
            double dy = scaleY * t;
            for( int u = 0; u < npoints; u++ ){
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    public void testCreate() throws FactoryException {
        final CRSAuthorityFactory       crsFactory;
        final CoordinateOperationFactory opFactory;
              CoordinateReferenceSystem  sourceCRS;
              CoordinateReferenceSystem  targetCRS;
              CoordinateOperation        operation;

        crsFactory = ReferencingFactoryFinder.getCRSAuthorityFactory("EPSG", null);
        opFactory  = ReferencingFactoryFinder.getCoordinateOperationFactory(null);
        sourceCRS  = crsFactory.createCoordinateReferenceSystem("4230");
        targetCRS  = crsFactory.createCoordinateReferenceSystem("4326");
        operation  = opFactory.createOperation(sourceCRS, targetCRS);

        assertSame(sourceCRS, operation.getSourceCRS());
        assertSame(targetCRS, operation.getTargetCRS());
        assertSame(operation, opFactory.createOperation(sourceCRS, targetCRS));
        assertTrue("Expected a buffered factory but got " + opFactory.getClass().getName(),
                opFactory instanceof BufferedCoordinateOperationFactory);
        assertTrue("EPSG authority factory not found.",
                ((BufferedCoordinateOperationFactory) opFactory).getImplementationHints().
                get(Hints.COORDINATE_OPERATION_FACTORY) instanceof AuthorityBackedFactory);
        assertEquals("1612", getIdentifier(operation)); // See comment in DefaultDataSourceTest.
        assertEquals(1.0, AbstractCoordinateOperation.getAccuracy(operation), 1E-6);
        assertTrue(operation instanceof Transformation);
        /*
         * Tests a transformation not backed directly by an authority factory.
         * However, the inverse transform may exist in the authority factory.
         */
        sourceCRS  = crsFactory.createCoordinateReferenceSystem("4326");
        targetCRS  = crsFactory.createCoordinateReferenceSystem("2995");
        operation  = opFactory.createOperation(sourceCRS, targetCRS);
        assertTrue("This test needs an operation not backed by the EPSG factory.",
                   operation.getIdentifiers().isEmpty());
        // Should contains exactly one transformations and an arbitrary number of conversions.
        assertTrue(operation instanceof ConcatenatedOperation);
        int count = 0;
        for (final Iterator it=((ConcatenatedOperation) operation).getOperations().iterator(); it.hasNext();) {
            final CoordinateOperation op = (CoordinateOperation) it.next();
            if (op instanceof Transformation) {
                count++;
            } else {
                assertTrue("Expected Conversion but got " +
                           Classes.getShortName(AbstractCoordinateOperation.getType(op)) + ". ",
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        try {
            /** Buffered factory for coordinate operations. */

            // transforming the envelope back to the dataset crs in
            CoordinateOperation op = operationFactory.createOperation(state.getRequestedEnvelope()
                    .getCoordinateReferenceSystem(), crs);

            if (op.getMathTransform().isIdentity()) { // Identity Transform ?
                state.setRequestEnvelopeTransformed(state.getRequestedEnvelope());
                return; // and finish
            }

            state.setRequestEnvelopeTransformed(CRS.transform(op, state
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        CoordinateReferenceSystem WGS84 = (CoordinateReferenceSystem) CRS.decode("EPSG:4326"); // latlong
        CoordinateReferenceSystem NAD83 = (CoordinateReferenceSystem) CRS.decode("EPSG:4269");
        CoordinateReferenceSystem NAD83_UTM10 = (CoordinateReferenceSystem) CRS.decode("EPSG:26910");
        CoordinateReferenceSystem BC_ALBERS = (CoordinateReferenceSystem) CRS.decode("EPSG:42102");
               
        CoordinateOperation op = ReferencingFactoryFinder.getCoordinateOperationFactory(null).createOperation( WGS84, WGS84 );
        MathTransform math = op.getMathTransform();
               
        DirectPosition pt1 = new GeneralDirectPosition(0.0,0.0);       
        DirectPosition pt2 = math.transform( pt1, null );
        assertNotNull( pt2 );
         
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    @Test
    public void testFallbackOnEPSGDatabase() throws Exception {
        // Test CRSs
        CoordinateReferenceSystem source = CRS.decode("EPSG:3003");
        CoordinateReferenceSystem target = CRS.decode("EPSG:4326");
        CoordinateOperation co = CRS.getCoordinateOperationFactory(true).createOperation(source, target);
        ConcatenatedOperation cco = (ConcatenatedOperation) co;
        // the EPSG one only has two steps, the non EPSG one 4
        assertEquals(2, cco.getOperations().size());
    }
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    public void testCreate() throws FactoryException {
        final CRSAuthorityFactory       crsFactory;
        final CoordinateOperationFactory opFactory;
              CoordinateReferenceSystem  sourceCRS;
              CoordinateReferenceSystem  targetCRS;
              CoordinateOperation        operation;

        crsFactory = ReferencingFactoryFinder.getCRSAuthorityFactory("EPSG", null);
        opFactory  = ReferencingFactoryFinder.getCoordinateOperationFactory(null);
        sourceCRS  = crsFactory.createCoordinateReferenceSystem("4230");
        targetCRS  = crsFactory.createCoordinateReferenceSystem("4326");
        operation  = opFactory.createOperation(sourceCRS, targetCRS);

        assertSame(sourceCRS, operation.getSourceCRS());
        assertSame(targetCRS, operation.getTargetCRS());
        assertSame(operation, opFactory.createOperation(sourceCRS, targetCRS));
        assertTrue("Expected a buffered factory but got " + opFactory.getClass().getName(),
                opFactory instanceof BufferedCoordinateOperationFactory);
        assertTrue("EPSG authority factory not found.",
                ((BufferedCoordinateOperationFactory) opFactory).getImplementationHints().
                get(Hints.COORDINATE_OPERATION_FACTORY) instanceof AuthorityBackedFactory);
        assertEquals("1612", getIdentifier(operation)); // See comment in DefaultDataSourceTest.
        assertEquals(1.0, AbstractCoordinateOperation.getAccuracy(operation), 1E-6);
        assertTrue(operation instanceof Transformation);
        /*
         * Tests a transformation not backed directly by an authority factory.
         * However, the inverse transform may exist in the authority factory.
         */
        sourceCRS  = crsFactory.createCoordinateReferenceSystem("4326");
        targetCRS  = crsFactory.createCoordinateReferenceSystem("2995");
        operation  = opFactory.createOperation(sourceCRS, targetCRS);
        assertTrue("This test needs an operation not backed by the EPSG factory.",
                   operation.getIdentifiers().isEmpty());
        // Should contains exactly one transformations and an arbitrary number of conversions.
        assertTrue(operation instanceof ConcatenatedOperation);
        int count = 0;
        for (final Iterator it=((ConcatenatedOperation) operation).getOperations().iterator(); it.hasNext();) {
            final CoordinateOperation op = (CoordinateOperation) it.next();
            if (op instanceof Transformation) {
                count++;
            } else {
                assertTrue("Expected Conversion but got " +
                           Classes.getShortName(AbstractCoordinateOperation.getType(op)) + ". ",
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