Examples of org.opengis.filter.FilterFactory2.dwithin()

org.opengis.filter.FilterFactory2.dwithin()
Checks if any part of the first geometry lies within the given distance of the second geometry.

          try {
              Expression geometry1 =  (Expression) value[0].getValue();
                    Expression geometry2 = (Expression) value[1].getValue();
                    Literal literal = (Literal) value[2];
                    double distance = ((Number)literal.getValue()).doubleValue(); 
                    return factory.dwithin(geometry1, geometry2, distance, null );
          }
          catch( ClassCastException wrong){
            throw new SAXException( wrong );
          } catch (IllegalFilterException illegalFilterException) {
            throw new SAXException( illegalFilterException );

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    }


    public void testPointDistance() throws IOException, ParseException {
        FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
        Geometry point = new WKTReader().read("POINT(180000 0)");
        DWithin filter = ff.dwithin(ff.property(aname("geom")), ff.literal(point), 15000, "m");
        
        ContentFeatureCollection fc = dataStore.getFeatureSource(tname("ppoint")).getFeatures(filter);
        assertEquals(1, fc.size());
    }
}

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        Expression property = this.resultStack.popExpression();
        
        FilterFactory2  ff = (FilterFactory2) filterFactory; // TODO this cast must be removed. It depends of Geometry implementation 


        return ff.dwithin(property, geom, tolerance, unit);
    }


    public DistanceBufferOperator buildSpatialBeyondFilter() throws CQLException {
        
        String unit = this.resultStack.popStringValue();

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        init("not-active");
        FilterFactory2 ff = (FilterFactory2) dataStore.getFilterFactory();
        GeometryFactory gf = new GeometryFactory();
        PackedCoordinateSequenceFactory sf = new PackedCoordinateSequenceFactory();
        Point ls = gf.createPoint(sf.create(new double[] { 1, 1 }, 2));
        DWithin f = ff.dwithin(ff.property("geo"), ff.literal(ls), 3, SI.METRE.getSymbol());
        SimpleFeatureCollection features = featureSource.getFeatures(f);
        assertEquals(2, features.size());
        SimpleFeatureIterator fsi = features.features();
        assertTrue(fsi.hasNext());
        assertEquals(fsi.next().getID(), "not-active.12");

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    // threshold distance
    double distance = 10.0d;
    
    FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
    Filter filter = ff.dwithin(ff.property("POLYGON"), ff.literal(point), distance, uom.toString());
    
    return featureSource.getFeatures(filter);
}


// distance end

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