Examples of GeometryTransformationVisitor

org.geotools.filter.function.GeometryTransformationVisitor
Given an original rendering envelope it visits an expression, finds all {@link GeometryTransformation}, collects and merges all the returned query envelopes @source $URL$

Examples of org.geotools.filter.function.GeometryTransformationVisitor

     * @param envelope
     * @return
     */
    ReferencedEnvelope expandEnvelopeByTransformations(LiteFeatureTypeStyle[] styles,
            ReferencedEnvelope envelope) {
        GeometryTransformationVisitor visitor = new GeometryTransformationVisitor();
        ReferencedEnvelope result = new ReferencedEnvelope(envelope);
        for (LiteFeatureTypeStyle lts : styles) {
            List<Rule> rules = new ArrayList<Rule>();
            rules.addAll(Arrays.asList(lts.ruleList));
            rules.addAll(Arrays.asList(lts.elseRules));

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Examples of org.geotools.filter.function.GeometryTransformationVisitor

    public void testSimpleBuffer() {
        org.opengis.filter.expression.Expression geomTx = ff.function("buffer", ff.property("the_geom"), ff.literal(2));
        
        ReferencedEnvelope re = new ReferencedEnvelope(0, 2, 0, 2, null);
        
        GeometryTransformationVisitor visitor = new GeometryTransformationVisitor();
        ReferencedEnvelope result = (ReferencedEnvelope) geomTx.accept(visitor, re);
        
        ReferencedEnvelope expected = new ReferencedEnvelope(-2, 4, -2, 4, null);
        assertEquals(expected, result);
    }

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Examples of org.geotools.filter.function.GeometryTransformationVisitor

        Function innerBuffer = ff.function("buffer", ff.property("the_geom"), ff.literal(3));
        Function geomTx = ff.function("buffer", innerBuffer, ff.literal(2));
        
        ReferencedEnvelope re = new ReferencedEnvelope(0, 2, 0, 2, null);
        
        GeometryTransformationVisitor visitor = new GeometryTransformationVisitor();
        ReferencedEnvelope result = (ReferencedEnvelope) geomTx.accept(visitor, re);
        
        ReferencedEnvelope expected = new ReferencedEnvelope(-5, 7, -5, 7, null);
        assertEquals(expected, result);
    }

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Examples of org.geotools.filter.function.GeometryTransformationVisitor

        Function innerBuffer2 = ff.function("buffer", ff.property("other_geom"), ff.literal(2));
        Function geomTx = ff.function("intersection", innerBuffer1, innerBuffer2);
        
        ReferencedEnvelope re = new ReferencedEnvelope(0, 2, 0, 2, null);
        
        GeometryTransformationVisitor visitor = new GeometryTransformationVisitor();
        ReferencedEnvelope result = (ReferencedEnvelope) geomTx.accept(visitor, re);
        
        ReferencedEnvelope expected = new ReferencedEnvelope(-3, 5, -3, 5, null);
        assertEquals(expected, result);

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