Examples of com.vividsolutions.jts.geom.GeometryComponentFilter

com.vividsolutions.jts.geom.GeometryComponentFilter

Geometry classes support the concept of applying a GeometryComponentFilter filter to the Geometry. The filter is applied to every component of the Geometry which is itself a Geometry and which does not itself contain any components. (For instance, all the LinearRings in Polygons are visited, but in a MultiPolygon the Polygons themselves are not visited.) Thus the only classes of Geometry which must be handled as arguments to {@link #filter}are {@link LineString}s, {@link LinearRing}s and {@link Point}s.

A GeometryComponentFilter filter can either record information about the Geometry or change the Geometry in some way. GeometryComponentFilter is an example of the Gang-of-Four Visitor pattern. @version 1.7

                if (intersection instanceof MultiPolygon) {
                    rasterFilter = (MultiPolygon)intersection;
                } else {
                    final List<Polygon> accum = new ArrayList<Polygon>();
                    intersection.apply(
                        new GeometryComponentFilter() {
                            public void filter(Geometry geom) {
                                if (geom instanceof Polygon) accum.add((Polygon)geom);
                            }
                        }
                    );

Examples of com.vividsolutions.jts.geom.GeometryComponentFilter

Related Classes of com.vividsolutions.jts.geom.GeometryComponentFilter