import com.vividsolutions.jts.util.UniqueCoordinateArrayFilter; //导入依赖的package包/类
/**
 * Transform into GeometryCollection.
 *
 * @param geom input geometry
 * @return a geometry collection
 */
private static GeometryCollection transformIntoPointGeometryCollection(Geometry geom) {
    UniqueCoordinateArrayFilter filter = new UniqueCoordinateArrayFilter();
    geom.apply(filter);
    Coordinate[] coord = filter.getCoordinates();

    Geometry[] geometries = new Geometry[coord.length];
    for (int i = 0; i < coord.length; i++) {
        Coordinate[] c = new Coordinate[]{coord[i]};
        CoordinateArraySequence cs = new CoordinateArraySequence(c);
        geometries[i] = new Point(cs, geom.getFactory());
    }

    return new GeometryCollection(geometries, geom.getFactory());
}
 

import com.vividsolutions.jts.util.UniqueCoordinateArrayFilter; //导入依赖的package包/类
/**
 * Transform into GeometryCollection.
 *
 * @param geom
 * 		input geometry
 * @return
 * 		a geometry collection
 */
private static GeometryCollection transformIntoPointGeometryCollection(Geometry geom) {
  UniqueCoordinateArrayFilter filter = new UniqueCoordinateArrayFilter();
  geom.apply(filter);
  Coordinate[] coord = filter.getCoordinates();

  Geometry[] geometries = new Geometry[coord.length];
  for (int i = 0 ; i < coord.length ; i++) {
    Coordinate[] c = new Coordinate[] { coord[i] };
    CoordinateArraySequence cs = new CoordinateArraySequence(c);
    geometries[i] = new Point(cs, geom.getFactory());
  }

  return new GeometryCollection(geometries, geom.getFactory());
}
 

import com.vividsolutions.jts.util.UniqueCoordinateArrayFilter; //导入依赖的package包/类
public void testUniqueCoordinateArrayFilter() throws Exception {
  Geometry g = reader.read(
        "MULTIPOINT(10 10, 20 20, 30 30, 20 20, 10 10)");
  UniqueCoordinateArrayFilter f = new UniqueCoordinateArrayFilter();
  g.apply(f);
  assertEquals(3, f.getCoordinates().length);
  assertEquals(new Coordinate(10, 10), f.getCoordinates()[0]);
  assertEquals(new Coordinate(20, 20), f.getCoordinates()[1]);
  assertEquals(new Coordinate(30, 30), f.getCoordinates()[2]);
}
 

import com.vividsolutions.jts.util.UniqueCoordinateArrayFilter; //导入依赖的package包/类
/**
 * Transform into GeometryCollection.
 * 
 * @param geom
 * 		input geometry
 * @return
 * 		a geometry collection
 */
private static GeometryCollection transformIntoPointGeometryCollection(Geometry geom) {
	UniqueCoordinateArrayFilter filter = new UniqueCoordinateArrayFilter();
	geom.apply(filter);
	Coordinate[] coord = filter.getCoordinates();
	
	Geometry[] geometries = new Geometry[coord.length];
	for (int i = 0 ; i < coord.length ; i++) {
		Coordinate[] c = new Coordinate[] { coord[i] };
		CoordinateArraySequence cs = new CoordinateArraySequence(c);
		geometries[i] = new Point(cs, geom.getFactory());
	}
	
	return new GeometryCollection(geometries, geom.getFactory());
}
 

import com.vividsolutions.jts.util.UniqueCoordinateArrayFilter; //导入依赖的package包/类
private static Coordinate[] extractCoordinates(Geometry geom) {
    UniqueCoordinateArrayFilter filter = new UniqueCoordinateArrayFilter();
    geom.apply(filter);
    return filter.getCoordinates();
}
 

import com.vividsolutions.jts.util.UniqueCoordinateArrayFilter; //导入依赖的package包/类
/**
 * Create a new convex hull construction for the input {@link Coordinate} array.
 */
public ConvexHull(Coordinate[] pts, GeometryFactory geomFactory) {
    inputPts = UniqueCoordinateArrayFilter.filterCoordinates(pts);
    //inputPts = pts;
    this.geomFactory = geomFactory;
}
 

import com.vividsolutions.jts.util.UniqueCoordinateArrayFilter; //导入依赖的package包/类
private static Coordinate[] extractCoordinates(Geometry geom)
{
  UniqueCoordinateArrayFilter filter = new UniqueCoordinateArrayFilter();
  geom.apply(filter);
  return filter.getCoordinates();
}