01: /*
02: * The JTS Topology Suite is a collection of Java classes that
03: * implement the fundamental operations required to validate a given
04: * geo-spatial data set to a known topological specification.
05: *
06: * Copyright (C) 2001 Vivid Solutions
07: *
08: * This library is free software; you can redistribute it and/or
09: * modify it under the terms of the GNU Lesser General Public
10: * License as published by the Free Software Foundation; either
11: * version 2.1 of the License, or (at your option) any later version.
12: *
13: * This library is distributed in the hope that it will be useful,
14: * but WITHOUT ANY WARRANTY; without even the implied warranty of
15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16: * Lesser General Public License for more details.
17: *
18: * You should have received a copy of the GNU Lesser General Public
19: * License along with this library; if not, write to the Free Software
20: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: *
22: * For more information, contact:
23: *
24: * Vivid Solutions
25: * Suite #1A
26: * 2328 Government Street
27: * Victoria BC V8T 5G5
28: * Canada
29: *
30: * (250)385-6040
31: * www.vividsolutions.com
32: */
33: package com.vividsolutions.jtsexample.geom;
34:
35: import com.vividsolutions.jts.geom.Coordinate;
36: import com.vividsolutions.jts.geom.Geometry;
37: import com.vividsolutions.jts.geom.GeometryFactory;
38: import com.vividsolutions.jts.io.WKTReader;
39:
40: /**
41: * Shows basic ways of creating and operating on geometries
42: *
43: * @version 1.7
44: */
45: public class BasicExample {
46: public static void main(String[] args) throws Exception {
47: // read a geometry from a WKT string (using the default geometry factory)
48: Geometry g1 = new WKTReader()
49: .read("LINESTRING (0 0, 10 10, 20 20)");
50: System.out.println("Geometry 1: " + g1);
51:
52: // create a geometry by specifying the coordinates directly
53: Coordinate[] coordinates = new Coordinate[] {
54: new Coordinate(0, 0), new Coordinate(10, 10),
55: new Coordinate(20, 20) };
56: // use the default factory, which gives full double-precision
57: Geometry g2 = new GeometryFactory()
58: .createLineString(coordinates);
59: System.out.println("Geometry 2: " + g2);
60:
61: // compute the intersection of the two geometries
62: Geometry g3 = g1.intersection(g2);
63: System.out.println("G1 intersection G2: " + g3);
64: }
65: }
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