Java GeometryCollection类代码示例

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Read a Geometry Collection
 * 
 * @param reader
 * @param hasZ
 * @param hasM
 * @return geometry collection
 */
public static GeometryCollection<Geometry> readGeometryCollection(
		ByteReader reader, boolean hasZ, boolean hasM) {

	GeometryCollection<Geometry> geometryCollection = new GeometryCollection<Geometry>(
			hasZ, hasM);

	int numGeometries = reader.readInt();

	for (int i = 0; i < numGeometries; i++) {
		Geometry geometry = readGeometry(reader, Geometry.class);
		geometryCollection.addGeometry(geometry);

	}

	return geometryCollection;
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Convert a {@link GeometryCollection} to a list of Map shapes
 *
 * @param geometryCollection
 * @return
 */
public List<GoogleMapShape> toShapes(
        GeometryCollection<Geometry> geometryCollection) {

    List<GoogleMapShape> shapes = new ArrayList<GoogleMapShape>();

    for (Geometry geometry : geometryCollection.getGeometries()) {
        GoogleMapShape shape = toShape(geometry);
        shapes.add(shape);
    }

    return shapes;
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Convert a {@link GeometryCollection} to a list of Map shapes and add to
 * the map
 *
 * @param map
 * @param geometryCollection
 * @return
 */
public List<GoogleMapShape> addToMap(GoogleMap map,
                                     GeometryCollection<Geometry> geometryCollection) {

    List<GoogleMapShape> shapes = new ArrayList<GoogleMapShape>();

    for (Geometry geometry : geometryCollection.getGeometries()) {
        GoogleMapShape shape = addToMap(map, geometry);
        shapes.add(shape);
    }

    return shapes;
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Validate Geometry Collection
 * 
 * @param topGeometry
 * @param geometryCollection
 */
private static void validateGeometryCollection(Geometry topGeometry,
		GeometryCollection<?> geometryCollection) {

	validateZAndM(topGeometry, geometryCollection);

	for (Geometry geometry : geometryCollection.getGeometries()) {
		validateGeometry(geometry.getGeometryType(), geometry);
	}

}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Compare the two geometry collections for equality
 *
 * @param expected
 * @param actual
 * @param delta
 */
private static void compareGeometryCollection(
		GeometryCollection<?> expected, GeometryCollection<?> actual,
		double delta) {

	compareBaseGeometryAttributes(expected, actual);
	TestCase.assertEquals(expected.numGeometries(), actual.numGeometries());
	for (int i = 0; i < expected.numGeometries(); i++) {
		compareGeometries(expected.getGeometries().get(i), actual
				.getGeometries().get(i), delta);
	}
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Transform the projected geometry collection
 * 
 * @param geometryCollection
 * @return projected geometry collection
 */
public GeometryCollection<Geometry> transform(
		GeometryCollection<Geometry> geometryCollection) {

	GeometryCollection<Geometry> to = new GeometryCollection<Geometry>(
			geometryCollection.hasZ(), geometryCollection.hasM());

	for (Geometry geometry : geometryCollection.getGeometries()) {
		Geometry toGeometry = transform(geometry);
		to.addGeometry(toGeometry);
	}

	return to;
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Compare the two geometry collections for equality
 * 
 * @param expected
 * @param actual
 * @param delta
 */
private static void compareGeometryCollection(
		GeometryCollection<?> expected, GeometryCollection<?> actual,
		double delta) {

	compareBaseGeometryAttributes(expected, actual);
	TestCase.assertEquals(expected.numGeometries(), actual.numGeometries());
	for (int i = 0; i < expected.numGeometries(); i++) {
		compareGeometries(expected.getGeometries().get(i), actual
				.getGeometries().get(i), delta);
	}
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Add a curve based dimension 1 geometry to the centroid total. Ignores
 * dimension 0 geometries.
 * 
 * @param geometry
 *            geometry
 */
public void add(Geometry geometry) {

	GeometryType geometryType = geometry.getGeometryType();
	switch (geometryType) {
	case LINESTRING:
	case CIRCULARSTRING:
		add((LineString) geometry);
		break;
	case MULTILINESTRING:
		MultiLineString multiLineString = (MultiLineString) geometry;
		addLineStrings(multiLineString.getLineStrings());
		break;
	case COMPOUNDCURVE:
		CompoundCurve compoundCurve = (CompoundCurve) geometry;
		addLineStrings(compoundCurve.getLineStrings());
		break;
	case GEOMETRYCOLLECTION:
		@SuppressWarnings("unchecked")
		GeometryCollection<Geometry> geomCollection = (GeometryCollection<Geometry>) geometry;
		List<Geometry> geometries = geomCollection.getGeometries();
		for (Geometry subGeometry : geometries) {
			add(subGeometry);
		}
		break;
	case POINT:
	case MULTIPOINT:
		// Doesn't contribute to curve dimension
		break;
	default:
		throw new WkbException("Unsupported "
				+ this.getClass().getSimpleName() + " Geometry Type: "
				+ geometryType);
	}
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Get the dimension of the Geometry, 0 for points, 1 for curves, 2 for
 * surfaces. If a collection, the largest dimension is returned.
 * 
 * @param geometry
 *            geometry object
 * @return dimension (0, 1, or 2)
 */
public static int getDimension(Geometry geometry) {

	int dimension = -1;

	GeometryType geometryType = geometry.getGeometryType();
	switch (geometryType) {
	case POINT:
	case MULTIPOINT:
		dimension = 0;
		break;
	case LINESTRING:
	case MULTILINESTRING:
	case CIRCULARSTRING:
	case COMPOUNDCURVE:
		dimension = 1;
		break;
	case POLYGON:
	case CURVEPOLYGON:
	case MULTIPOLYGON:
	case POLYHEDRALSURFACE:
	case TIN:
	case TRIANGLE:
		dimension = 2;
		break;
	case GEOMETRYCOLLECTION:
		@SuppressWarnings("unchecked")
		GeometryCollection<Geometry> geomCollection = (GeometryCollection<Geometry>) geometry;
		List<Geometry> geometries = geomCollection.getGeometries();
		for (Geometry subGeometry : geometries) {
			dimension = Math.max(dimension, getDimension(subGeometry));
		}
		break;
	default:
		throw new WkbException("Unsupported Geometry Type: " + geometryType);
	}

	return dimension;
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Add a surface based dimension 2 geometry to the centroid total. Ignores
 * dimension 0 and 1 geometries.
 * 
 * @param geometry
 *            geometry
 */
public void add(Geometry geometry) {

	GeometryType geometryType = geometry.getGeometryType();
	switch (geometryType) {
	case POLYGON:
	case TRIANGLE:
		add((Polygon) geometry);
		break;
	case MULTIPOLYGON:
		MultiPolygon multiPolygon = (MultiPolygon) geometry;
		add(multiPolygon.getPolygons());
		break;
	case POLYHEDRALSURFACE:
	case TIN:
		PolyhedralSurface polyhedralSurface = (PolyhedralSurface) geometry;
		add(polyhedralSurface.getPolygons());
		break;
	case GEOMETRYCOLLECTION:
		@SuppressWarnings("unchecked")
		GeometryCollection<Geometry> geomCollection = (GeometryCollection<Geometry>) geometry;
		List<Geometry> geometries = geomCollection.getGeometries();
		for (Geometry subGeometry : geometries) {
			add(subGeometry);
		}
		break;
	case POINT:
	case MULTIPOINT:
	case LINESTRING:
	case CIRCULARSTRING:
	case MULTILINESTRING:
	case COMPOUNDCURVE:
		// Doesn't contribute to surface dimension
		break;
	default:
		throw new WkbException("Unsupported "
				+ this.getClass().getSimpleName() + " Geometry Type: "
				+ geometryType);
	}
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Add a point based dimension 0 geometry to the centroid total
 * 
 * @param geometry
 *            geometry
 */
public void add(Geometry geometry) {
	GeometryType geometryType = geometry.getGeometryType();
	switch (geometryType) {
	case POINT:
		add((Point) geometry);
		break;
	case MULTIPOINT:
		MultiPoint multiPoint = (MultiPoint) geometry;
		for (Point point : multiPoint.getPoints()) {
			add(point);
		}
		break;
	case GEOMETRYCOLLECTION:
		@SuppressWarnings("unchecked")
		GeometryCollection<Geometry> geomCollection = (GeometryCollection<Geometry>) geometry;
		List<Geometry> geometries = geomCollection.getGeometries();
		for (Geometry subGeometry : geometries) {
			add(subGeometry);
		}
		break;
	default:
		throw new WkbException("Unsupported "
				+ this.getClass().getSimpleName() + " Geometry Type: "
				+ geometryType);
	}
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
/**
 * Write a Geometry Collection
 * 
 * @param writer
 * @param geometryCollection
 * @throws IOException
 */
public static void writeGeometryCollection(ByteWriter writer,
		GeometryCollection<?> geometryCollection) throws IOException {

	writer.writeInt(geometryCollection.numGeometries());

	for (Geometry geometry : geometryCollection.getGeometries()) {
		writeGeometry(writer, geometry);
	}
}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
@Test
public void testGeometryCollection() throws IOException {

	for (int i = 0; i < GEOMETRIES_PER_TEST; i++) {
		// Create and test a geometry collection
		GeometryCollection<Geometry> geometryCollection = WKBTestUtils
				.createGeometryCollection(WKBTestUtils.coinFlip(),
						WKBTestUtils.coinFlip());
		geometryTester(geometryCollection);
	}

}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
@Test
public void testGeometryCollectionCentroid() throws IOException {

	for (int i = 0; i < GEOMETRIES_PER_TEST; i++) {
		// Create and test a geometry collection
		GeometryCollection<Geometry> geometryCollection = createGeometryCollection(
				WKBTestUtils.coinFlip(), WKBTestUtils.coinFlip());
		geometryCentroidTester(geometryCollection);
	}

}
 

import mil.nga.wkb.geom.GeometryCollection; //导入依赖的package包/类
private static GeometryCollection<Geometry> createGeometryCollection(
		boolean hasZ, boolean hasM) {

	GeometryCollection<Geometry> geometryCollection = new GeometryCollection<Geometry>(
			hasZ, hasM);

	int num = 1 + ((int) (Math.random() * 5));

	for (int i = 0; i < num; i++) {

		Geometry geometry = null;
		int randomGeometry = (int) (Math.random() * 6);

		switch (randomGeometry) {
		case 0:
			geometry = WKBTestUtils.createPoint(hasZ, hasM);
			break;
		case 1:
			geometry = WKBTestUtils.createLineString(hasZ, hasM);
			break;
		case 2:
			geometry = createPolygon();
			break;
		case 3:
			geometry = WKBTestUtils.createMultiPoint(hasZ, hasM);
			break;
		case 4:
			geometry = WKBTestUtils.createMultiLineString(hasZ, hasM);
			break;
		case 5:
			geometry = createMultiPolygon();
			break;
		}

		geometryCollection.addGeometry(geometry);
	}

	return geometryCollection;
}