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 / MultiSurfaceToJTS.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 | /*
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47 | * AUTHORS (In addition to CIT):
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48 | * 2009 {Iver T.I.} {Task}
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49 | */
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50 | |||
51 | package org.gvsig.fmap.geom.operation.tojts; |
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52 | |||
53 | import java.util.ArrayList; |
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54 | import java.util.List; |
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55 | |||
56 | import com.vividsolutions.jts.geom.MultiPolygon; |
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57 | import com.vividsolutions.jts.geom.Polygon; |
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58 | |||
59 | import org.slf4j.Logger; |
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60 | import org.slf4j.LoggerFactory; |
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61 | |||
62 | import org.gvsig.fmap.geom.Geometry; |
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63 | import org.gvsig.fmap.geom.aggregate.MultiSurface; |
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64 | import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
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65 | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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66 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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67 | |||
68 | /**
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69 | * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>
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70 | */
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71 | public class MultiSurfaceToJTS extends ToJTS{ |
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72 | |||
73 | private static Logger logger = LoggerFactory.getLogger(MultiSurfaceToJTS.class); |
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74 | /*
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75 | * (non-Javadoc)
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76 | * @see org.gvsig.fmap.geom.operation.tojts.ToJTS#invoke(org.gvsig.fmap.geom.Geometry, org.gvsig.fmap.geom.operation.GeometryOperationContext)
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77 | */
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78 | public Object invoke(Geometry geom, GeometryOperationContext ctx) throws GeometryOperationException { |
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79 | int srid = -1; |
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80 | if (ctx != null){ |
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81 | srid = ((JTSGeometryOperationContext)ctx).getSrid(); |
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82 | } |
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83 | MultiSurface multiSurface = (MultiSurface)geom; |
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84 | |||
85 | List prim_list = new ArrayList(); |
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86 | int prim_n = multiSurface.getPrimitivesNumber();
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87 | Object item = null; |
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88 | |||
89 | for (int i = 0; i < prim_n; i++){ |
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90 | try {
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91 | item = multiSurface.getPrimitiveAt(i).invokeOperation(CODE, ctx); |
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92 | if (item instanceof MultiPolygon) { |
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93 | |||
94 | /*
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95 | * Considering also multi polygons
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96 | */
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97 | MultiPolygon mpo = (MultiPolygon) item; |
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98 | for (int k=0; k<mpo.getNumGeometries(); k++) { |
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99 | if (mpo.getGeometryN(k) instanceof Polygon) { |
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100 | prim_list.add(mpo.getGeometryN(k)); |
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101 | } |
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102 | } |
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103 | |||
104 | } else {
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105 | if (item instanceof Polygon) { |
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106 | /*
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107 | * Including primitives converted to polygon.
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108 | * Short primitives can return a point or line
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109 | */
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110 | prim_list.add(item); |
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111 | } else {
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112 | String txt = (item == null) ? "NULL" : item.getClass().getName(); |
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113 | logger.info("Warning: excluding primitive in MultiSurfaceToJTS because it converted to a JTS " + txt);
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114 | } |
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115 | } |
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116 | } catch (GeometryOperationNotSupportedException e) {
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117 | throw new GeometryOperationException(e); |
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118 | } |
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119 | } |
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120 | |||
121 | Polygon[] polygons = (Polygon[]) prim_list.toArray(new Polygon[0]); |
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122 | MultiPolygon polygon = new com.vividsolutions.jts.geom.GeometryFactory().createMultiPolygon(polygons);
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123 | polygon.setSRID(srid); |
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124 | return polygon;
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125 | } |
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126 | } |