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
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
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25 | *
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26 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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27 | * of the Valencian Government (CIT)
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28 | *
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29 | * This program is free software; you can redistribute it and/or
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30 | * modify it under the terms of the GNU General Public License
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31 | * as published by the Free Software Foundation; either version 2
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32 | * of the License, or (at your option) any later version.
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33 | *
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34 | * This program is distributed in the hope that it will be useful,
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35 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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36 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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37 | * GNU General Public License for more details.
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38 | *
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39 | * You should have received a copy of the GNU General Public License
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40 | * along with this program; if not, write to the Free Software
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41 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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42 | * MA 02110-1301, USA.
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43 | *
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44 | */
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45 | |||
46 | package org.gvsig.fmap.geom.operation.tojts; |
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47 | |||
48 | import java.awt.geom.PathIterator; |
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49 | import java.util.ArrayList; |
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50 | |||
51 | import org.gvsig.fmap.geom.Geometry; |
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52 | import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
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53 | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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54 | |||
55 | import com.vividsolutions.jts.geom.Coordinate; |
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56 | import com.vividsolutions.jts.geom.CoordinateArrays; |
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57 | import com.vividsolutions.jts.geom.LinearRing; |
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58 | import com.vividsolutions.jts.geom.MultiLineString; |
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59 | |||
60 | /**
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61 | * Converts a Surface2D into a MultiLineString object
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62 | * @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
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63 | */
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64 | public class Surface2DToJTSLineString extends ToJTS { |
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65 | public static final String NAME = "toJTSLineString"; |
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66 | public static final int CODE = geomManager.getGeometryOperationCode(NAME); |
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67 | |||
68 | /*
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69 | * (non-Javadoc)
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70 | * @see org.gvsig.fmap.geom.operation.tojts.ToJTS#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.geom.operation.GeometryOperationContext)
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71 | */
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72 | public Object invoke(Geometry geom, GeometryOperationContext ctx) throws GeometryOperationException { |
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73 | int srid = -1; |
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74 | if (ctx != null){ |
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75 | srid = ((JTSGeometryOperationContext)ctx).getSrid(); |
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76 | } |
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77 | PathIterator theIterator = geom.getPathIterator(null, geomManager.getFlatness()); |
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78 | int theType;
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79 | double[] theData = new double[6]; |
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80 | ArrayList arrayCoords = null; |
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81 | Coordinate[] points = null; |
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82 | ArrayList listRings = new ArrayList(); |
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83 | theIterator = geom.getPathIterator(null, geomManager.getFlatness());
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84 | |||
85 | while (!theIterator.isDone()) {
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86 | theType = theIterator.currentSegment(theData); |
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87 | |||
88 | switch (theType) {
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89 | case PathIterator.SEG_MOVETO: |
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90 | if (arrayCoords == null) { |
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91 | arrayCoords = new ArrayList(); |
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92 | } else
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93 | arrayCoords.clear(); |
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94 | arrayCoords.add(new Coordinate(theData[0], theData[1])); |
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95 | break;
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96 | |||
97 | case PathIterator.SEG_LINETO: |
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98 | arrayCoords.add(new Coordinate(theData[0],theData[1])); |
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99 | break;
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100 | case PathIterator.SEG_QUADTO: |
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101 | System.out.println("SEG_QUADTO Not supported here"); |
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102 | break;
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103 | case PathIterator.SEG_CUBICTO: |
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104 | System.out.println("SEG_CUBICTO Not supported here"); |
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105 | break;
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106 | case PathIterator.SEG_CLOSE: |
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107 | break;
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108 | } |
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109 | theIterator.next(); |
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110 | } |
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111 | |||
112 | Coordinate firstCoord = (Coordinate) arrayCoords.get(0);
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113 | Coordinate lastCoord = (Coordinate) arrayCoords.get(arrayCoords.size() - 1);
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114 | if (!isClosed(firstCoord, lastCoord)) {
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115 | arrayCoords.add(firstCoord); |
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116 | } |
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117 | points = CoordinateArrays.toCoordinateArray(arrayCoords); |
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118 | listRings.add(geomFactory.createLinearRing(points)); |
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119 | |||
120 | LinearRing[] list = (LinearRing[])listRings.toArray(new LinearRing[listRings.size()]); |
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121 | MultiLineString lineStr = new com.vividsolutions.jts.geom.GeometryFactory().createMultiLineString(list);
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122 | lineStr.setSRID(srid); |
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123 | return lineStr;
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124 | } |
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125 | } |