root / branches / piloto3d / libraries / libFMap / src / com / iver / cit / gvsig / fmap / operations / strategies / QueryByRectVisitor.java @ 9524
History | View | Annotate | Download (3.12 KB)
1 | 1100 | fjp | /* 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 | 235 | vcaballero | package com.iver.cit.gvsig.fmap.operations.strategies; |
42 | |||
43 | 5317 | fjp | import java.awt.geom.Rectangle2D; |
44 | |||
45 | import org.cresques.cts.ICoordTrans; |
||
46 | |||
47 | 305 | fjp | import com.iver.cit.gvsig.fmap.core.IGeometry; |
48 | 9524 | sbayarri | import com.iver.cit.gvsig.fmap.core.ISymbol; |
49 | 683 | fernando | import com.iver.cit.gvsig.fmap.layers.FBitSet; |
50 | 562 | fernando | import com.iver.cit.gvsig.fmap.layers.FLayer; |
51 | 235 | vcaballero | |
52 | |||
53 | /**
|
||
54 | * Query by Rectangle Visitor.
|
||
55 | *
|
||
56 | * @author Vicente Caballero Navarro
|
||
57 | */
|
||
58 | public class QueryByRectVisitor implements FeatureVisitor { |
||
59 | 1034 | vcaballero | private Rectangle2D rect = null; |
60 | private FBitSet bitset = null; |
||
61 | 990 | fjp | private ICoordTrans ct = null; |
62 | 235 | vcaballero | |
63 | 1034 | vcaballero | /**
|
64 | * Inserta el Rect?ngulo para realizar la consulta.
|
||
65 | *
|
||
66 | * @param r Rect?ngulo para la consulta.
|
||
67 | */
|
||
68 | public void setRect(Rectangle2D r) { |
||
69 | rect = r; |
||
70 | } |
||
71 | 990 | fjp | |
72 | 1034 | vcaballero | /**
|
73 | * Devuelve un FBitSet como respuesta a la consulta.
|
||
74 | *
|
||
75 | * @return FBitSet con los ?ndices de los registros de la consulta.
|
||
76 | */
|
||
77 | public FBitSet getBitSet() {
|
||
78 | return bitset;
|
||
79 | } |
||
80 | 235 | vcaballero | |
81 | 1034 | vcaballero | /**
|
82 | * @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#visit(com.iver.cit.gvsig.fmap.core.IGeometry,
|
||
83 | * int)
|
||
84 | */
|
||
85 | public void visit(IGeometry g, int index) { |
||
86 | 1165 | vcaballero | if (g==null)return; |
87 | 1295 | fjp | // Comentamos esto porque la geometry ya viene reproyectada
|
88 | /* if (ct != null) {
|
||
89 | 1034 | vcaballero | g.reProject(ct);
|
90 | 1295 | fjp | } */
|
91 | 235 | vcaballero | |
92 | 1034 | vcaballero | if (g.intersects(rect)) {
|
93 | bitset.set(index, true);
|
||
94 | } else {
|
||
95 | bitset.set(index, false);
|
||
96 | } |
||
97 | } |
||
98 | 235 | vcaballero | |
99 | 562 | fernando | /**
|
100 | * @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#stop(com.iver.cit.gvsig.fmap.layers.FLayer)
|
||
101 | */
|
||
102 | public void stop(FLayer layer) { |
||
103 | } |
||
104 | 235 | vcaballero | |
105 | 562 | fernando | /**
|
106 | * @see com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor#start(com.iver.cit.gvsig.fmap.layers.FLayer)
|
||
107 | */
|
||
108 | public boolean start(FLayer layer) { |
||
109 | 1034 | vcaballero | bitset = new FBitSet();
|
110 | 1295 | fjp | // ct = layer.getCoordTrans();
|
111 | 1034 | vcaballero | |
112 | 562 | fernando | return true; |
113 | } |
||
114 | 4311 | azabala | |
115 | public String getProcessDescription() { |
||
116 | return "Selecting geometries that intersects a rectangle"; |
||
117 | } |
||
118 | 9524 | sbayarri | |
119 | public void visitWithSymbol(IGeometry g, int index, ISymbol symbol) throws VisitException { |
||
120 | // TODO Auto-generated method stub
|
||
121 | |||
122 | } |
||
123 | 235 | vcaballero | } |