svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.operation / src / main / java / org / gvsig / fmap / geom / operation / relationship / Intersects.java @ 40596
History | View | Annotate | Download (3.34 KB)
1 |
/**
|
---|---|
2 |
* gvSIG. Desktop Geographic Information System.
|
3 |
*
|
4 |
* Copyright (C) 2007-2013 gvSIG Association.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 3
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program is distributed in the hope that it will be useful,
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
19 |
* MA 02110-1301, USA.
|
20 |
*
|
21 |
* For any additional information, do not hesitate to contact us
|
22 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
23 |
*/
|
24 |
package org.gvsig.fmap.geom.operation.relationship; |
25 |
|
26 |
import org.gvsig.fmap.geom.Geometry; |
27 |
import org.gvsig.fmap.geom.GeometryLocator; |
28 |
import org.gvsig.fmap.geom.operation.GeometryOperation; |
29 |
import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
30 |
import org.gvsig.fmap.geom.operation.GeometryOperationException; |
31 |
import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
32 |
import org.gvsig.fmap.geom.operation.tojts.ToJTS; |
33 |
import org.gvsig.fmap.geom.primitive.impl.DefaultNullGeometry; |
34 |
|
35 |
/**
|
36 |
* @author jmvivo
|
37 |
*
|
38 |
*/
|
39 |
public class Intersects extends GeometryOperation { |
40 |
public static final String NAME = "intersects"; |
41 |
public static final int CODE = GeometryLocator.getGeometryManager(). |
42 |
getGeometryOperationCode(NAME); |
43 |
|
44 |
/*
|
45 |
* (non-Javadoc)
|
46 |
*
|
47 |
* @see org.gvsig.fmap.geom.operation.GeometryOperation#getOperationIndex()
|
48 |
*/
|
49 |
public int getOperationIndex() { |
50 |
return CODE;
|
51 |
} |
52 |
|
53 |
/*
|
54 |
* (non-Javadoc)
|
55 |
*
|
56 |
* @see org.gvsig.fmap.geom.operation.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry,
|
57 |
* org.gvsig.fmap.geom.operation.GeometryOperationContext)
|
58 |
*/
|
59 |
public Object invoke(Geometry geom, GeometryOperationContext ctx) |
60 |
throws GeometryOperationException {
|
61 |
Geometry otherGeom = (Geometry) ctx.getAttribute("geom");
|
62 |
if (otherGeom instanceof DefaultNullGeometry || geom instanceof DefaultNullGeometry || !otherGeom.getEnvelope().intersects(geom.getEnvelope())){ |
63 |
return new Boolean(false); |
64 |
} |
65 |
// TODO optimizar esto para los rectangulos (envelope)
|
66 |
com.vividsolutions.jts.geom.Geometry jtsGeom = null;
|
67 |
com.vividsolutions.jts.geom.Geometry otherJtsGeom = null;
|
68 |
try {
|
69 |
jtsGeom = (com.vividsolutions.jts.geom.Geometry) geom |
70 |
.invokeOperation(ToJTS.CODE, null);
|
71 |
} catch (GeometryOperationNotSupportedException e) {
|
72 |
throw new GeometryOperationException(geom.getType(), CODE, e); |
73 |
} |
74 |
try {
|
75 |
|
76 |
otherJtsGeom = (com.vividsolutions.jts.geom.Geometry) otherGeom |
77 |
.invokeOperation(ToJTS.CODE, null);
|
78 |
} catch (GeometryOperationNotSupportedException e) {
|
79 |
throw new GeometryOperationException(otherGeom.getType(), CODE, e); |
80 |
} |
81 |
if (jtsGeom!=null && otherJtsGeom!=null) |
82 |
return new Boolean(jtsGeom.intersects(otherJtsGeom)); |
83 |
return new Boolean(false); |
84 |
} |
85 |
|
86 |
} |