svn-gvsig-desktop / tags / v1_0_2_Build_916 / extensions / extGeoProcessing / src / com / iver / cit / gvsig / geoprocess / impl / buffer / fmap / ConstantDistanceBufferVisitor.java @ 12327
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1 | 5918 | azabala | /*
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2 | * Created on 02-feb-2006
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3 | *
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4 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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5 | *
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6 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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7 | *
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8 | * This program is free software; you can redistribute it and/or
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9 | * modify it under the terms of the GNU General Public License
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10 | * as published by the Free Software Foundation; either version 2
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11 | * of the License, or (at your option) any later version.
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12 | *
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13 | * This program is distributed in the hope that it will be useful,
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 | * GNU General Public License for more details.
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17 | *
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18 | * You should have received a copy of the GNU General Public License
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19 | * along with this program; if not, write to the Free Software
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20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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21 | *
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22 | * For more information, contact:
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23 | *
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24 | * Generalitat Valenciana
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25 | * Conselleria d'Infraestructures i Transport
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26 | * Av. Blasco Ib??ez, 50
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27 | * 46010 VALENCIA
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28 | * SPAIN
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29 | *
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30 | * +34 963862235
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31 | * gvsig@gva.es
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32 | * www.gvsig.gva.es
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33 | *
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34 | * or
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35 | *
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36 | * IVER T.I. S.A
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37 | * Salamanca 50
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38 | * 46005 Valencia
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39 | * Spain
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40 | *
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41 | * +34 963163400
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42 | * dac@iver.es
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43 | */
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44 | /* CVS MESSAGES:
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45 | *
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46 | * $Id$
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47 | * $Log$
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48 | 8765 | jjdelcerro | * Revision 1.3.2.1 2006-11-15 00:08:17 jjdelcerro
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49 | * *** empty log message ***
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50 | *
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51 | * Revision 1.4 2006/09/15 10:42:54 caballero
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52 | * extensibilidad de documentos
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53 | *
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54 | * Revision 1.3 2006/08/29 07:21:09 cesar
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55 | 6878 | cesar | * Rename com.iver.cit.gvsig.fmap.Fmap class to com.iver.cit.gvsig.fmap.MapContext
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56 | *
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57 | * Revision 1.2 2006/06/29 17:31:47 azabala
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58 | 6109 | azabala | * Uses UnitUtils
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59 | *
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60 | * Revision 1.1 2006/06/20 18:20:45 azabala
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61 | 5918 | azabala | * first version in cvs
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62 | *
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63 | * Revision 1.2 2006/06/02 18:20:33 azabala
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64 | * limpieza de imports
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65 | *
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66 | * Revision 1.1 2006/05/24 21:14:41 azabala
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67 | * primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing
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68 | *
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69 | * Revision 1.8 2006/05/01 19:18:09 azabala
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70 | * revisi?n general del buffer (a?adidos anillos concentricos, buffers interiores y exteriores, etc)
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71 | *
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72 | * Revision 1.7 2006/03/28 16:27:16 azabala
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73 | * *** empty log message ***
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74 | *
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75 | * Revision 1.6 2006/03/07 21:01:33 azabala
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76 | * *** empty log message ***
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77 | *
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78 | * Revision 1.5 2006/03/06 19:48:39 azabala
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79 | * *** empty log message ***
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80 | *
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81 | * Revision 1.3 2006/03/05 19:57:05 azabala
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82 | * *** empty log message ***
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83 | *
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84 | * Revision 1.2 2006/02/20 19:44:21 azabala
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85 | * *** empty log message ***
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86 | *
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87 | * Revision 1.1 2006/02/17 16:31:38 azabala
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88 | * *** empty log message ***
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89 | *
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90 | * Revision 1.3 2006/02/12 21:02:58 azabala
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91 | * *** empty log message ***
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92 | *
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93 | * Revision 1.2 2006/02/09 16:01:06 azabala
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94 | * First version in CVS
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95 | *
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96 | * Revision 1.1 2006/02/02 19:46:51 azabala
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97 | * First version in CVS
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98 | *
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99 | *
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100 | */
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101 | package com.iver.cit.gvsig.geoprocess.impl.buffer.fmap; |
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102 | |||
103 | import org.cresques.cts.IProjection; |
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104 | import org.cresques.cts.gt2.CSUTM; |
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105 | |||
106 | import com.iver.andami.PluginServices; |
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107 | 6878 | cesar | import com.iver.cit.gvsig.fmap.MapContext; |
108 | 5918 | azabala | import com.iver.cit.gvsig.fmap.core.IGeometry; |
109 | import com.iver.cit.gvsig.fmap.layers.FLayer; |
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110 | import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
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111 | import com.iver.cit.gvsig.geoprocess.core.fmap.GeoprocessException; |
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112 | 6109 | azabala | import com.iver.cit.gvsig.geoprocess.core.util.UnitUtils; |
113 | 8765 | jjdelcerro | import com.iver.cit.gvsig.project.documents.view.gui.View; |
114 | 5918 | azabala | |
115 | /**
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116 | * This FeatureVisitor computes buffers and saves
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117 | * it to a new FLayer.
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118 | * All IFeature of this Layer will have the same buffer
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119 | * distance.
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120 | *
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121 | * @author azabala
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122 | *
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123 | */
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124 | public class ConstantDistanceBufferVisitor extends BufferVisitor { |
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125 | /**
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126 | * buffer distance to use
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127 | */
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128 | private double distance; |
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129 | |||
130 | /**
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131 | * Constructor
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132 | * @param distance buffer distance to use
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133 | * @throws GeoprocessException
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134 | */
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135 | public ConstantDistanceBufferVisitor(double distance) throws GeoprocessException{ |
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136 | this.distance = distance;
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137 | } |
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138 | |||
139 | public void stop(FLayer layer) { |
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140 | //we must flush JTS processors
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141 | resultsProcessor.finish(); |
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142 | } |
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143 | /**
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144 | * This FeatureVisitor only work with Vectorial
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145 | * Layers
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146 | */
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147 | public boolean start(FLayer layer) { |
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148 | if(layer instanceof FLyrVect){ |
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149 | return true; |
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150 | }else
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151 | return false; |
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152 | } |
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153 | |||
154 | public double getBufferDistance(IGeometry g, int index) { |
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155 | //first: pass the user entry to internal units
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156 | 6109 | azabala | return UnitUtils.getInInternalUnits(distance);
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157 | 5918 | azabala | } |
158 | |||
159 | 6109 | azabala | |
160 | 5918 | azabala | |
161 | public String getProcessDescription() { |
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162 | return "Computing buffers with constant distances"; |
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163 | } |
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164 | |||
165 | } |
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166 |