Class MultiPoint

1
2
3	/*
4	* Copyright (c) 2016 Vivid Solutions.
5	*
6	* All rights reserved. This program and the accompanying materials
7	* are made available under the terms of the Eclipse Public License 2.0
8	* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
9	* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
10	* and the Eclipse Distribution License is available at
11	*
12	* http://www.eclipse.org/org/documents/edl-v10.php.
13	*/
14	package org.locationtech.jts.geom;
15
16	/**
17	* Models a collection of {@link Point}s.
18	* <p>
19	* Any collection of Points is a valid MultiPoint.
20	*
21	*@version 1.7
22	*/
23	public class MultiPoint
24	extends GeometryCollection
25	implements Puntal
26	{
27
28	private static final long serialVersionUID = -8048474874175355449L;
29
30	/**
31	* Constructs a <code>MultiPoint</code>.
32	*
33	*@param points the <code>Point</code>s for this <code>MultiPoint</code>
34	* , or <code>null</code> or an empty array to create the empty geometry.
35	* Elements may be empty <code>Point</code>s, but not <code>null</code>s.
36	*@param precisionModel the specification of the grid of allowable points
37	* for this <code>MultiPoint</code>
38	*@param SRID the ID of the Spatial Reference System used by this
39	* <code>MultiPoint</code>
40	* @deprecated Use GeometryFactory instead
41	*/
42	public MultiPoint(Point[] points, PrecisionModel precisionModel, int SRID) {
43	super(points, new GeometryFactory(precisionModel, SRID));
44	}
45
46	/**
47	*@param points the <code>Point</code>s for this <code>MultiPoint</code>
48	* , or <code>null</code> or an empty array to create the empty geometry.
49	* Elements may be empty <code>Point</code>s, but not <code>null</code>s.
50	*/
51	public MultiPoint(Point[] points, GeometryFactory factory) {
52	super(points, factory);
53	}
54
55	public int getDimension() {
56	return 0;
57	}
58
59	public int getBoundaryDimension() {
60	return Dimension.FALSE;
61	}
62
63	public String getGeometryType() {
64	return Geometry.TYPENAME_MULTIPOINT;
65	}
66
67	/**
68	* Gets the boundary of this geometry.
69	* Zero-dimensional geometries have no boundary by definition,
70	* so an empty GeometryCollection is returned.
71	*
72	* @return an empty GeometryCollection
73	* @see Geometry#getBoundary
74	*/
75	public Geometry getBoundary() {
76	return getFactory().createGeometryCollection();
77	}
78
79	public MultiPoint reverse() {
80	return (MultiPoint) super.reverse();
81	}
82
83	public boolean isValid() {
84	return true;
85	}
86
87	public boolean equalsExact(Geometry other, double tolerance) {
88	if (!isEquivalentClass(other)) {
89	return false;
90	}
91	return super.equalsExact(other, tolerance);
92	}
93
94	/**
95	* Returns the <code>Coordinate</code> at the given position.
96	*
97	*@param n the index of the <code>Coordinate</code> to retrieve, beginning
98	* at 0
99	*@return the <code>n</code>th <code>Coordinate</code>
100	*/
101	protected Coordinate getCoordinate(int n) {
102	return ((Point) geometries[n]).getCoordinate();
103	}
104
105	protected MultiPoint copyInternal() {
106	Point[] points = new Point[this.geometries.length];
107	for (int i = 0; i < points.length; i++) {
108	points[i] = (Point) this.geometries[i].copy();
109	}
110	return new MultiPoint(points, factory);
111	}
112
113	protected int getTypeCode() {
114	return Geometry.TYPECODE_MULTIPOINT;
115	}
116
117	}
118
119