protected Geometry transformPolygon(Polygon geom, Geometry parent) {
boolean isAllValidLinearRings = true;
Geometry shell = transformLinearRing((LinearRing) geom.getExteriorRing(), geom);
if (shell == null || !(shell instanceof LinearRing) || shell.isEmpty())
isAllValidLinearRings = false;
// return factory.createPolygon(null, null);
ArrayList holes = new ArrayList();
for (int i = 0; i < geom.getNumInteriorRing(); i++) {
Geometry hole = transformLinearRing((LinearRing) geom.getInteriorRingN(i), geom);
if (hole == null || hole.isEmpty()) {
continue;
}
if (!(hole instanceof LinearRing)) isAllValidLinearRings = false;
holes.add(hole);
}
if (isAllValidLinearRings)
return factory.createPolygon(
(LinearRing) shell, (LinearRing[]) holes.toArray(new LinearRing[] {}));
else {
List components = new ArrayList();
if (shell != null) components.add(shell);
components.addAll(holes);
return factory.buildGeometry(components);
}
}
protected Geometry transformMultiPolygon(MultiPolygon geom, Geometry parent) {
List transGeomList = new ArrayList();
for (int i = 0; i < geom.getNumGeometries(); i++) {
Geometry transformGeom = transformPolygon((Polygon) geom.getGeometryN(i), geom);
if (transformGeom == null) continue;
if (transformGeom.isEmpty()) continue;
transGeomList.add(transformGeom);
}
return factory.buildGeometry(transGeomList);
}
public static List extractElements(Geometry geom, boolean skipEmpty) {
List elem = new ArrayList();
if (geom == null) return elem;
for (int i = 0; i < geom.getNumGeometries(); i++) {
Geometry elemGeom = geom.getGeometryN(i);
if (skipEmpty && elemGeom.isEmpty()) continue;
elem.add(elemGeom);
}
return elem;
}
protected Geometry transformGeometryCollection(GeometryCollection geom, Geometry parent) {
List transGeomList = new ArrayList();
for (int i = 0; i < geom.getNumGeometries(); i++) {
Geometry transformGeom = transform(geom.getGeometryN(i));
if (transformGeom == null) continue;
if (pruneEmptyGeometry && transformGeom.isEmpty()) continue;
transGeomList.add(transformGeom);
}
if (preserveGeometryCollectionType)
return factory.createGeometryCollection(GeometryFactory.toGeometryArray(transGeomList));
return factory.buildGeometry(transGeomList);
}
public static Envelope3D of(final Geometry g) {
if (g == null || g.isEmpty()) {
return new Envelope3D();
}
final Envelope3D env = new Envelope3D();
g.apply(
new CoordinateFilter() {
@Override
public void filter(final Coordinate coord) {
env.expandToInclude(coord);
}
});
return env;
}
