Examples with Expression org.opengis.filter.Expression used on opensource projects

Example 96 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class SE110toGTTransformer method visit.

/**
 *  Transform a SLD v1.1 interpolate function in GT interpolate function.
 */
public Interpolate visit(final InterpolateType interpolate) {
    if (interpolate == null)
        return null;
    final Literal fallback = filterFactory.literal(interpolate.getFallbackValue());
    final Expression lookup = visitExpression(interpolate.getLookupValue());
    final Method method;
    if (MethodType.COLOR.equals(interpolate.getMethod())) {
        method = Method.COLOR;
    } else {
        method = Method.NUMERIC;
    }
    final Mode mode;
    if (ModeType.COSINE.equals(interpolate.getMode())) {
        mode = Mode.COSINE;
    } else if (ModeType.CUBIC.equals(interpolate.getMode())) {
        mode = Mode.CUBIC;
    } else {
        mode = Mode.LINEAR;
    }
    final List<InterpolationPoint> values = new ArrayList<InterpolationPoint>();
    for (final InterpolationPointType ip : interpolate.getInterpolationPoint()) {
        values.add(styleFactory.interpolationPoint(ip.getData(), visitExpression(ip.getValue())));
    }
    return styleFactory.interpolateFunction(lookup, values, method, mode, fallback);
}

Example 97 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class ExpressionReadingTest method testPropertyName1.

@Test
public void testPropertyName1() throws CQLException {
    final String cql = "geom";
    final Expression obj = CQL.parseExpression(cql);
    assertTrue(obj instanceof ValueReference);
    final ValueReference expression = (ValueReference) obj;
    assertEquals("geom", expression.getXPath());
}

Example 98 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class ExpressionReadingTest method testGeometryEnvelopeEmpty.

@Test
public void testGeometryEnvelopeEmpty() throws CQLException {
    final String cql = "ENVELOPE EMPTY";
    final Expression obj = CQL.parseExpression(cql);
    assertTrue(obj instanceof Literal);
    final Literal expression = (Literal) obj;
    final Geometry geom = (Geometry) expression.getValue();
    assertTrue(geom instanceof Polygon);
    assertTrue(geom.isEmpty());
}

Example 99 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class ExpressionReadingTest method testGeometryMPolygonEmpty.

@Test
public void testGeometryMPolygonEmpty() throws CQLException {
    final String cql = "MULTIPOLYGON EMPTY";
    final Expression obj = CQL.parseExpression(cql);
    assertTrue(obj instanceof Literal);
    final Literal expression = (Literal) obj;
    final Geometry geom = (Geometry) expression.getValue();
    assertTrue(geom instanceof MultiPolygon);
    assertTrue(geom.isEmpty());
}

Example 100 with Expression

use of org.opengis.filter.Expression in project geotoolkit by Geomatys.

the class ExpressionReadingTest method testGeometryMPolygon.

@Test
public void testGeometryMPolygon() throws CQLException {
    final String cql = "MULTIPOLYGON(" + "((10 20, 30 40, 50 60, 10 20), (70 80, 90 100, 110 120, 70 80))," + "((11 21, 31 41, 51 61, 11 21), (71 81, 91 101, 111 121, 71 81))" + ")";
    final Expression obj = CQL.parseExpression(cql);
    assertTrue(obj instanceof Literal);
    final Literal expression = (Literal) obj;
    final Polygon geom1 = GF.createPolygon(GF.createLinearRing(new Coordinate[] { new Coordinate(10, 20), new Coordinate(30, 40), new Coordinate(50, 60), new Coordinate(10, 20) }), new LinearRing[] { GF.createLinearRing(new Coordinate[] { new Coordinate(70, 80), new Coordinate(90, 100), new Coordinate(110, 120), new Coordinate(70, 80) }) });
    final Polygon geom2 = GF.createPolygon(GF.createLinearRing(new Coordinate[] { new Coordinate(11, 21), new Coordinate(31, 41), new Coordinate(51, 61), new Coordinate(11, 21) }), new LinearRing[] { GF.createLinearRing(new Coordinate[] { new Coordinate(71, 81), new Coordinate(91, 101), new Coordinate(111, 121), new Coordinate(71, 81) }) });
    final Geometry geom = GF.createMultiPolygon(new Polygon[] { geom1, geom2 });
    assertTrue(geom.equals((Geometry) expression.getValue()));
}