root / branches / v10 / extensions / extGeoProcessing / src / com / iver / cit / gvsig / geoprocess / impl / convexhull / fmap / ScalableUnionVisitor.java @ 12555
History | View | Annotate | Download (3.83 KB)
1 | 5918 | azabala | /*
|
---|---|---|---|
2 | * Created on 03-mar-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 | 12555 | azabala | * Revision 1.1.2.1 2007-07-12 09:28:17 azabala
|
49 | * Modifications to work with closed polylines as polygons (usual in cad files)
|
||
50 | *
|
||
51 | * Revision 1.1 2006/06/20 18:20:45 azabala
|
||
52 | 5918 | azabala | * first version in cvs
|
53 | *
|
||
54 | * Revision 1.3 2006/06/08 18:20:59 azabala
|
||
55 | * modificaciones para admitir capas de shapeType MULTI
|
||
56 | *
|
||
57 | * Revision 1.2 2006/06/02 18:21:28 azabala
|
||
58 | * *** empty log message ***
|
||
59 | *
|
||
60 | * Revision 1.1 2006/05/24 21:13:31 azabala
|
||
61 | * primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing
|
||
62 | *
|
||
63 | * Revision 1.2 2006/05/01 19:16:10 azabala
|
||
64 | * optimizada la union mediante buffer(0)
|
||
65 | *
|
||
66 | * Revision 1.1 2006/03/06 19:48:39 azabala
|
||
67 | * *** empty log message ***
|
||
68 | *
|
||
69 | * Revision 1.1 2006/03/05 19:57:48 azabala
|
||
70 | * *** empty log message ***
|
||
71 | *
|
||
72 | *
|
||
73 | */
|
||
74 | package com.iver.cit.gvsig.geoprocess.impl.convexhull.fmap; |
||
75 | |||
76 | 12555 | azabala | import com.iver.cit.gvsig.fmap.core.FShape; |
77 | 5918 | azabala | import com.iver.cit.gvsig.fmap.core.IGeometry; |
78 | import com.iver.cit.gvsig.fmap.operations.strategies.VisitException; |
||
79 | import com.iver.cit.gvsig.geoprocess.core.fmap.XTypes; |
||
80 | import com.vividsolutions.jts.geom.Geometry; |
||
81 | import com.vividsolutions.jts.geom.GeometryCollection; |
||
82 | 12555 | azabala | import com.vividsolutions.jts.geom.MultiLineString; |
83 | 5918 | azabala | |
84 | |||
85 | |||
86 | |||
87 | //TODO Este Visitor no deber?a heredar del anterior, puesto que las
|
||
88 | //llamadas getJtsConvexHull() no devuelven un convex hull, sino una
|
||
89 | //uni?n.
|
||
90 | |||
91 | |||
92 | public class ScalableUnionVisitor extends ScalableConvexHullVisitor { |
||
93 | |||
94 | public void visit(IGeometry g, int index) throws VisitException { |
||
95 | if(g == null) |
||
96 | return;
|
||
97 | 12555 | azabala | Geometry actualGeometry = null;
|
98 | int geometryType = g.getGeometryType();
|
||
99 | switch(geometryType){
|
||
100 | case XTypes.POLYGON:
|
||
101 | case FShape.CIRCLE:
|
||
102 | case FShape.ELLIPSE:
|
||
103 | case FShape.POLYGON + FShape.Z:
|
||
104 | case FShape.MULTI://Este igual hay que quitarlo, pero no suele |
||
105 | //ser devuelto por los drivers
|
||
106 | actualGeometry = g.toJTSGeometry(); |
||
107 | break;
|
||
108 | |||
109 | case XTypes.LINE:
|
||
110 | case XTypes.ARC:
|
||
111 | case XTypes.LINE + XTypes.Z:
|
||
112 | actualGeometry = g.toJTSGeometry(); |
||
113 | MultiLineString lineString = (MultiLineString) actualGeometry; |
||
114 | if(!lineString.isClosed())
|
||
115 | return;
|
||
116 | /*
|
||
117 | * TODO
|
||
118 | * must be faster build a multipolygon from the multilinestring
|
||
119 | * (one polygon from each linestring
|
||
120 | * */
|
||
121 | actualGeometry = lineString.buffer(0d);
|
||
122 | break;
|
||
123 | |||
124 | default:
|
||
125 | 5918 | azabala | return;
|
126 | 12555 | azabala | } |
127 | 5918 | azabala | if(geometry == null){ |
128 | geometry = actualGeometry; |
||
129 | }else{
|
||
130 | Geometry[] geoms = new Geometry[2]; |
||
131 | geoms[0] = geometry;
|
||
132 | geoms[1] = actualGeometry;
|
||
133 | GeometryCollection gc = geomFact. |
||
134 | createGeometryCollection(geoms); |
||
135 | geometry = gc.buffer(0d);
|
||
136 | } |
||
137 | } |
||
138 | } |