svn-gvsig-desktop / tags / Root_Fmap_GisPlanet / libraries / libFMap / src / com / iver / cit / gvsig / fmap / operations / strategies / QueryByShapeVisitor.java @ 1826
History | View | Annotate | Download (2.74 KB)
1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
---|---|
2 |
*
|
3 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
4 |
*
|
5 |
* This program is free software; you can redistribute it and/or
|
6 |
* modify it under the terms of the GNU General Public License
|
7 |
* as published by the Free Software Foundation; either version 2
|
8 |
* of the License, or (at your option) any later version.
|
9 |
*
|
10 |
* This program is distributed in the hope that it will be useful,
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
13 |
* GNU General Public License for more details.
|
14 |
*
|
15 |
* You should have received a copy of the GNU General Public License
|
16 |
* along with this program; if not, write to the Free Software
|
17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
18 |
*
|
19 |
* For more information, contact:
|
20 |
*
|
21 |
* Generalitat Valenciana
|
22 |
* Conselleria d'Infraestructures i Transport
|
23 |
* Av. Blasco Ib??ez, 50
|
24 |
* 46010 VALENCIA
|
25 |
* SPAIN
|
26 |
*
|
27 |
* +34 963862235
|
28 |
* gvsig@gva.es
|
29 |
* www.gvsig.gva.es
|
30 |
*
|
31 |
* or
|
32 |
*
|
33 |
* IVER T.I. S.A
|
34 |
* Salamanca 50
|
35 |
* 46005 Valencia
|
36 |
* Spain
|
37 |
*
|
38 |
* +34 963163400
|
39 |
* dac@iver.es
|
40 |
*/
|
41 |
package com.iver.cit.gvsig.fmap.operations.strategies; |
42 |
|
43 |
import java.util.BitSet; |
44 |
|
45 |
import com.iver.cit.gvsig.fmap.core.IGeometry; |
46 |
import com.iver.cit.gvsig.fmap.layers.FBitSet; |
47 |
import com.iver.cit.gvsig.fmap.layers.FLayer; |
48 |
|
49 |
|
50 |
/**
|
51 |
* Query by Shape.
|
52 |
*
|
53 |
* @author Vicente Caballero Navarro
|
54 |
*/
|
55 |
public class QueryByShapeVisitor implements FeatureVisitor { |
56 |
private FBitSet bitset = null; |
57 |
private IGeometry shape = null; |
58 |
private int relationship; |
59 |
|
60 |
/**
|
61 |
* Inserta la relaci?n.
|
62 |
*
|
63 |
* @param relationship Relaci?n.
|
64 |
*/
|
65 |
public void setRelationShip(int relationship) { |
66 |
this.relationship = relationship;
|
67 |
} |
68 |
|
69 |
/**
|
70 |
* Inserta la geometr?a.
|
71 |
*
|
72 |
* @param shape Geometr?a.
|
73 |
*/
|
74 |
public void setShape(IGeometry shape) { |
75 |
this.shape = shape;
|
76 |
} |
77 |
|
78 |
/**
|
79 |
* Devuelve un BitSet con los ?ndices de los registros, como respuesta a la
|
80 |
* consulta.
|
81 |
*
|
82 |
* @return BitSet con los ?ndices de los registros de la consulta.
|
83 |
*/
|
84 |
public FBitSet getBitSet() {
|
85 |
return bitset;
|
86 |
} |
87 |
|
88 |
/**
|
89 |
* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#visit(com.iver.cit.gvsig.fmap.core.IGeometry,
|
90 |
* int)
|
91 |
*/
|
92 |
public void visit(IGeometry g, int index) { |
93 |
if (g==null)return; |
94 |
if (shape.intersects(g.getBounds2D())) {
|
95 |
bitset.set(index, true);
|
96 |
} else {
|
97 |
bitset.set(index, false);
|
98 |
} |
99 |
} |
100 |
|
101 |
/**
|
102 |
* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#stop()
|
103 |
*/
|
104 |
public void stop(FLayer lyr) { |
105 |
} |
106 |
|
107 |
/**
|
108 |
* @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#start()
|
109 |
*/
|
110 |
public boolean start(FLayer lyr) { |
111 |
bitset = new FBitSet();
|
112 |
|
113 |
return true; |
114 |
} |
115 |
} |