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 / tojts / Surface2DToJTSLineString.java @ 40559
History | View | Annotate | Download (4.5 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 |
/* gvSIG. Geographic Information System of the Valencian Government
|
25 |
*
|
26 |
* Copyright (C) 2007-2008 Infrastructures and Transports Department
|
27 |
* of the Valencian Government (CIT)
|
28 |
*
|
29 |
* This program is free software; you can redistribute it and/or
|
30 |
* modify it under the terms of the GNU General Public License
|
31 |
* as published by the Free Software Foundation; either version 2
|
32 |
* of the License, or (at your option) any later version.
|
33 |
*
|
34 |
* This program is distributed in the hope that it will be useful,
|
35 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
36 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
37 |
* GNU General Public License for more details.
|
38 |
*
|
39 |
* You should have received a copy of the GNU General Public License
|
40 |
* along with this program; if not, write to the Free Software
|
41 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
42 |
* MA 02110-1301, USA.
|
43 |
*
|
44 |
*/
|
45 |
|
46 |
package org.gvsig.fmap.geom.operation.tojts; |
47 |
|
48 |
import java.awt.geom.PathIterator; |
49 |
import java.util.ArrayList; |
50 |
|
51 |
import org.gvsig.fmap.geom.Geometry; |
52 |
import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
53 |
import org.gvsig.fmap.geom.operation.GeometryOperationException; |
54 |
|
55 |
import com.vividsolutions.jts.geom.Coordinate; |
56 |
import com.vividsolutions.jts.geom.CoordinateArrays; |
57 |
import com.vividsolutions.jts.geom.LinearRing; |
58 |
import com.vividsolutions.jts.geom.MultiLineString; |
59 |
|
60 |
/**
|
61 |
* Converts a Surface2D into a MultiLineString object
|
62 |
* @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
|
63 |
*/
|
64 |
public class Surface2DToJTSLineString extends ToJTS { |
65 |
public static final String NAME = "toJTSLineString"; |
66 |
public static final int CODE = geomManager.getGeometryOperationCode(NAME); |
67 |
|
68 |
/*
|
69 |
* (non-Javadoc)
|
70 |
* @see org.gvsig.fmap.geom.operation.tojts.ToJTS#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.geom.operation.GeometryOperationContext)
|
71 |
*/
|
72 |
public Object invoke(Geometry geom, GeometryOperationContext ctx) throws GeometryOperationException { |
73 |
int srid = -1; |
74 |
if (ctx != null){ |
75 |
srid = ((JTSGeometryOperationContext)ctx).getSrid(); |
76 |
} |
77 |
PathIterator theIterator = geom.getPathIterator(null, geomManager.getFlatness()); |
78 |
int theType;
|
79 |
double[] theData = new double[6]; |
80 |
ArrayList arrayCoords = null; |
81 |
Coordinate[] points = null; |
82 |
ArrayList listRings = new ArrayList(); |
83 |
theIterator = geom.getPathIterator(null, geomManager.getFlatness());
|
84 |
|
85 |
while (!theIterator.isDone()) {
|
86 |
theType = theIterator.currentSegment(theData); |
87 |
|
88 |
switch (theType) {
|
89 |
case PathIterator.SEG_MOVETO: |
90 |
if (arrayCoords == null) { |
91 |
arrayCoords = new ArrayList(); |
92 |
} else
|
93 |
arrayCoords.clear(); |
94 |
arrayCoords.add(new Coordinate(theData[0], theData[1])); |
95 |
break;
|
96 |
|
97 |
case PathIterator.SEG_LINETO: |
98 |
arrayCoords.add(new Coordinate(theData[0],theData[1])); |
99 |
break;
|
100 |
case PathIterator.SEG_QUADTO: |
101 |
System.out.println("SEG_QUADTO Not supported here"); |
102 |
break;
|
103 |
case PathIterator.SEG_CUBICTO: |
104 |
System.out.println("SEG_CUBICTO Not supported here"); |
105 |
break;
|
106 |
case PathIterator.SEG_CLOSE: |
107 |
break;
|
108 |
} |
109 |
theIterator.next(); |
110 |
} |
111 |
|
112 |
Coordinate firstCoord = (Coordinate) arrayCoords.get(0);
|
113 |
Coordinate lastCoord = (Coordinate) arrayCoords.get(arrayCoords.size() - 1);
|
114 |
if (!isClosed(firstCoord, lastCoord)) {
|
115 |
arrayCoords.add(firstCoord); |
116 |
} |
117 |
points = CoordinateArrays.toCoordinateArray(arrayCoords); |
118 |
listRings.add(geomFactory.createLinearRing(points)); |
119 |
|
120 |
LinearRing[] list = (LinearRing[])listRings.toArray(new LinearRing[listRings.size()]); |
121 |
MultiLineString lineStr = new com.vividsolutions.jts.geom.GeometryFactory().createMultiLineString(list);
|
122 |
lineStr.setSRID(srid); |
123 |
return lineStr;
|
124 |
} |
125 |
} |