svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / spatialindex / QuadtreeJts.java @ 10977
History | View | Annotate | Download (2.23 KB)
1 | 4979 | azabala | /*
|
---|---|---|---|
2 | * Created on 28-abr-2006
|
||
3 | *
|
||
4 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
||
5 | *
|
||
6 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
||
7 | *
|
||
8 | * This program is free software; you can redistribute it and/or
|
||
9 | * modify it under the terms of the GNU General Public License
|
||
10 | * as published by the Free Software Foundation; either version 2
|
||
11 | * of the License, or (at your option) any later version.
|
||
12 | *
|
||
13 | * This program 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
|
||
16 | * GNU General Public License for more details.
|
||
17 | *
|
||
18 | * You should have received a copy of the GNU General Public License
|
||
19 | * along with this program; 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 | * Generalitat Valenciana
|
||
25 | * Conselleria d'Infraestructures i Transport
|
||
26 | * Av. Blasco Ib??ez, 50
|
||
27 | * 46010 VALENCIA
|
||
28 | * SPAIN
|
||
29 | *
|
||
30 | * +34 963862235
|
||
31 | * gvsig@gva.es
|
||
32 | * www.gvsig.gva.es
|
||
33 | *
|
||
34 | * or
|
||
35 | *
|
||
36 | * IVER T.I. S.A
|
||
37 | * Salamanca 50
|
||
38 | * 46005 Valencia
|
||
39 | * Spain
|
||
40 | *
|
||
41 | * +34 963163400
|
||
42 | * dac@iver.es
|
||
43 | */
|
||
44 | /* CVS MESSAGES:
|
||
45 | *
|
||
46 | * $Id$
|
||
47 | * $Log$
|
||
48 | * Revision 1.1 2006-05-01 18:38:41 azabala
|
||
49 | * primera version en cvs del api de indices espaciales
|
||
50 | *
|
||
51 | *
|
||
52 | */
|
||
53 | package com.iver.cit.gvsig.fmap.spatialindex; |
||
54 | |||
55 | import java.awt.geom.Rectangle2D; |
||
56 | import java.util.List; |
||
57 | |||
58 | import com.vividsolutions.jts.geom.Envelope; |
||
59 | import com.vividsolutions.jts.index.quadtree.Quadtree; |
||
60 | /**
|
||
61 | * Adapter for ISPatialIndex gvSIG's interface to
|
||
62 | * JTS Quadtree.
|
||
63 | *
|
||
64 | *
|
||
65 | * @author azabala
|
||
66 | *
|
||
67 | */
|
||
68 | public class QuadtreeJts implements ISpatialIndex { |
||
69 | private Quadtree quadtree = new Quadtree(); |
||
70 | |||
71 | public List query(Rectangle2D rect) { |
||
72 | return quadtree.query(fromRect(rect));
|
||
73 | } |
||
74 | |||
75 | public void insert(Rectangle2D rect, int index) { |
||
76 | quadtree.insert(fromRect(rect), new Integer(index)); |
||
77 | } |
||
78 | |||
79 | public void delete(Rectangle2D rect, int index) { |
||
80 | quadtree.remove(fromRect(rect), new Integer(index)); |
||
81 | } |
||
82 | |||
83 | private Envelope fromRect(Rectangle2D rect){ |
||
84 | Envelope env = new Envelope(rect.getMinX(),
|
||
85 | rect.getMaxX(), |
||
86 | rect.getMinY(), |
||
87 | rect.getMaxY()); |
||
88 | return env;
|
||
89 | } |
||
90 | |||
91 | } |