public void testMultiPointRead() throws SAXException, IOException, ParserConfigurationException {
FileReader fr = new FileReader(TEST_DIR + "multipoints.xml");
GMLReader gr = new GMLReader();
Geometry g = gr.read(fr, geometryFactory);
GeometryCollection gc = (GeometryCollection) g;
assertTrue(gc.getNumGeometries() == 25);
for (int i = 0; i < 25; i++) {
MultiPoint p = (MultiPoint) gc.getGeometryN(i);
assertNotNull(p);
}
}
public void testLineStringRead() throws SAXException, IOException, ParserConfigurationException {
FileReader fr = new FileReader(TEST_DIR + "linestrings.xml");
GMLReader gr = new GMLReader();
Geometry g = gr.read(fr, geometryFactory);
GeometryCollection gc = (GeometryCollection) g;
assertTrue(gc.getNumGeometries() == 25);
for (int i = 0; i < 25; i++) {
LineString ls = (LineString) gc.getGeometryN(i);
assertNotNull(ls);
}
}
public static void computeDistance(Geometry geom, Coordinate pt, PointPairDistance ptDist) {
if (geom instanceof LineString) {
computeDistance((LineString) geom, pt, ptDist);
} else if (geom instanceof Polygon) {
computeDistance((Polygon) geom, pt, ptDist);
} else if (geom instanceof GeometryCollection) {
GeometryCollection gc = (GeometryCollection) geom;
for (int i = 0; i < gc.getNumGeometries(); i++) {
Geometry g = gc.getGeometryN(i);
computeDistance(g, pt, ptDist);
}
} else { // assume geom is Point
ptDist.setMinimum(geom.getCoordinate(), pt);
}
}
private GeometryCollection editGeometryCollection(
GeometryCollection collection, GeometryEditorOperation operation) {
// first edit the entire collection
// MD - not sure why this is done - could just check original collection?
GeometryCollection collectionForType = (GeometryCollection) operation.edit(collection, factory);
// edit the component geometries
ArrayList geometries = new ArrayList();
for (int i = 0; i < collectionForType.getNumGeometries(); i++) {
Geometry geometry = edit(collectionForType.getGeometryN(i), operation);
if (geometry == null || geometry.isEmpty()) {
continue;
}
geometries.add(geometry);
}
if (collectionForType.getClass() == MultiPoint.class) {
return factory.createMultiPoint((Point[]) geometries.toArray(new Point[] {}));
}
if (collectionForType.getClass() == MultiLineString.class) {
return factory.createMultiLineString((LineString[]) geometries.toArray(new LineString[] {}));
}
if (collectionForType.getClass() == MultiPolygon.class) {
return factory.createMultiPolygon((Polygon[]) geometries.toArray(new Polygon[] {}));
}
return factory.createGeometryCollection((Geometry[]) geometries.toArray(new Geometry[] {}));
}