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

Example 51 with Expression

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

the class PrepareStyleVisitor method visit.

@Override
public Object visit(PolygonSymbolizer ps, Object o) {
    Displacement disp = ps.getDisplacement();
    Fill fill = ps.getFill();
    Expression offset = ps.getPerpendicularOffset();
    Stroke stroke = ps.getStroke();
    if (disp != null) {
        disp = (Displacement) disp.accept(this, o);
    }
    if (fill != null) {
        fill = (Fill) fill.accept(this, o);
    }
    if (offset != null) {
        offset = (Expression) visit(offset);
    }
    if (stroke != null) {
        stroke = (Stroke) stroke.accept(this, o);
    }
    // recreate symbolizer
    return SF.polygonSymbolizer(ps.getName(), visitGeometryExpression(ps, o), ps.getDescription(), ps.getUnitOfMeasure(), stroke, fill, disp, offset);
}

Example 52 with Expression

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

the class PrepareStyleVisitor method visit.

@Override
public Object visit(LineSymbolizer ls, Object o) {
    Expression offset = ls.getPerpendicularOffset();
    Stroke stroke = ls.getStroke();
    if (offset != null) {
        visit(offset);
    }
    if (stroke != null) {
        stroke = (Stroke) stroke.accept(this, o);
    }
    // recreate symbolizer
    return SF.lineSymbolizer(ls.getName(), visitGeometryExpression(ls, o), ls.getDescription(), ls.getUnitOfMeasure(), stroke, offset);
}

Example 53 with Expression

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

the class InterpolateTest method interpolate.

@Test
public void interpolate() {
    final String attribut = "att_value";
    final FilterFactory ff = FilterUtilities.FF;
    final MutableStyleFactory sf = new DefaultStyleFactory();
    final FeatureTypeBuilder sftb = new FeatureTypeBuilder();
    sftb.setName("test");
    sftb.addAttribute(Double.class).setName(attribut);
    final FeatureType sft = sftb.build();
    final Feature f1 = sft.newInstance();
    f1.setPropertyValue(attribut, 0d);
    final Feature f2 = sft.newInstance();
    f2.setPropertyValue(attribut, 5d);
    final Feature f3 = sft.newInstance();
    f3.setPropertyValue(attribut, 10d);
    final Feature f4 = sft.newInstance();
    f4.setPropertyValue(attribut, 15d);
    final Expression Lookup = ff.property(attribut);
    final List<InterpolationPoint> values = new ArrayList<>();
    // test color interpolation ---------------------------------------------
    values.clear();
    values.add(new DefaultInterpolationPoint(0d, ff.literal(BLACK)));
    values.add(new DefaultInterpolationPoint(10d, ff.literal(RED)));
    values.add(new DefaultInterpolationPoint(20d, ff.literal(BLUE)));
    Interpolate interpolate = new DefaultInterpolate(Lookup, values, Method.COLOR, Mode.CUBIC, null);
    Color c = (Color) interpolate.apply(f1);
    assertEquals(c, BLACK);
    c = (Color) interpolate.apply(f2);
    assertEquals(c.getAlpha(), 255);
    assertEquals(c.getRed(), 127);
    assertEquals(c.getGreen(), 0);
    assertEquals(c.getBlue(), 0);
    c = (Color) interpolate.apply(f3);
    assertEquals(c, RED);
    // test color interpolation ---------------------------------------------
    values.clear();
    values.add(new DefaultInterpolationPoint(0d, sf.literal(BLACK)));
    values.add(new DefaultInterpolationPoint(10d, sf.literal(RED)));
    values.add(new DefaultInterpolationPoint(20d, sf.literal(BLUE)));
    interpolate = new DefaultInterpolate(Lookup, values, Method.COLOR, Mode.CUBIC, null);
    c = (Color) interpolate.apply(f1);
    assertEquals(c, BLACK);
    c = (Color) interpolate.apply(f2);
    assertEquals(c.getAlpha(), 255);
    assertEquals(c.getRed(), 127);
    assertEquals(c.getGreen(), 0);
    assertEquals(c.getBlue(), 0);
    c = (Color) interpolate.apply(f3);
    assertEquals(c, RED);
    // test number interpolation --------------------------------------------
    values.clear();
    values.add(new DefaultInterpolationPoint(0d, ff.literal(0d)));
    values.add(new DefaultInterpolationPoint(10d, ff.literal(100d)));
    values.add(new DefaultInterpolationPoint(20d, ff.literal(50d)));
    interpolate = new DefaultInterpolate(Lookup, values, Method.COLOR, Mode.CUBIC, null);
    Double d = (Double) interpolate.apply(f1);
    assertEquals(d.doubleValue(), 0d, 0d);
    d = (Double) interpolate.apply(f2);
    assertEquals(d.doubleValue(), 50d, 0d);
    d = (Double) interpolate.apply(f3);
    assertEquals(d.doubleValue(), 100d, 0d);
    d = (Double) interpolate.apply(f4);
    assertEquals(d.doubleValue(), 75d, 0d);
    // test get lookup property
    Collection<String> requieredAttributs = new HashSet<String>();
    ListingPropertyVisitor.VISITOR.visit(interpolate, requieredAttributs);
    assertEquals(requieredAttributs.size(), 1);
    assertEquals(requieredAttributs.iterator().next(), attribut);
}

Example 54 with Expression

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

the class RandomStyleBuilder method createRandomLineSymbolizer.

public static LineSymbolizer createRandomLineSymbolizer() {
    final Unit uom = Units.POINT;
    final String geom = StyleConstants.DEFAULT_GEOM;
    final String name = null;
    final Stroke stroke = SF.stroke(randomColor(), 1);
    final Expression offset = FF.literal(0);
    return SF.lineSymbolizer(name, geom, StyleConstants.DEFAULT_DESCRIPTION, uom, stroke, offset);
}

Example 55 with Expression

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

the class RandomStyleBuilder method createRandomPolygonSymbolizer.

public static PolygonSymbolizer createRandomPolygonSymbolizer() {
    final Unit uom = Units.POINT;
    final String geom = StyleConstants.DEFAULT_GEOM;
    final String name = null;
    final Fill fill = SF.fill(SF.literal(randomColor()), FF.literal(0.6f));
    final Stroke stroke = SF.stroke(randomColor(), 1);
    final Displacement displacement = SF.displacement(0, 0);
    final Expression offset = FF.literal(0);
    return SF.polygonSymbolizer(name, geom, StyleConstants.DEFAULT_DESCRIPTION, uom, stroke, fill, displacement, offset);
}