svn-gvsig-desktop / tags / v1_1_Build_1011 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / drivers / shp / SHP.java @ 12904
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1 | 1100 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | 224 | vcaballero | package com.iver.cit.gvsig.fmap.drivers.shp; |
42 | |||
43 | 1270 | vcaballero | import com.iver.cit.gvsig.fmap.core.IGeometry; |
44 | 1132 | vcaballero | import com.iver.cit.gvsig.fmap.drivers.shp.write.SHPMultiLine; |
45 | import com.iver.cit.gvsig.fmap.drivers.shp.write.SHPMultiPoint; |
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46 | import com.iver.cit.gvsig.fmap.drivers.shp.write.SHPPoint; |
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47 | import com.iver.cit.gvsig.fmap.drivers.shp.write.SHPPolygon; |
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48 | import com.iver.cit.gvsig.fmap.drivers.shp.write.SHPShape; |
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49 | import com.iver.cit.gvsig.fmap.drivers.shp.write.ShapefileException; |
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50 | 1270 | vcaballero | import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
51 | 1132 | vcaballero | |
52 | 2197 | vcaballero | import java.io.File; |
53 | 1132 | vcaballero | |
54 | 2197 | vcaballero | import java.util.BitSet; |
55 | 1132 | vcaballero | |
56 | 2197 | vcaballero | |
57 | 224 | vcaballero | /**
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58 | 1132 | vcaballero | * Clase con las constantes que representan los diferentes tipos de Shape y
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59 | * m?todos est?ticos relativos a los shapes.
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60 | 224 | vcaballero | *
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61 | * @author Vicente Caballero Navarro
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62 | */
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63 | public class SHP { |
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64 | 2841 | caballero | public static final int NULL = 0; |
65 | public static final int POINT2D = 1; |
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66 | public static final int POLYLINE2D = 3; |
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67 | public static final int POLYGON2D = 5; |
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68 | public static final int MULTIPOINT2D = 8; |
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69 | public static final int POINT3D = 11; |
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70 | public static final int POLYLINE3D = 13; |
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71 | public static final int POLYGON3D = 15; |
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72 | public static final int MULTIPOINT3D = 18; |
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73 | 1132 | vcaballero | |
74 | 2841 | caballero | /**
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75 | * Crea a partir del tipo de geometr?a un shape del tipo m?s adecuado.
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76 | *
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77 | * @param type Tipo de geometr?a.
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78 | *
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79 | * @return Geometr?a m?s adecuada.
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80 | *
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81 | * @throws ShapefileException Se lanza cuando es causada por la creaci?n
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82 | * del shape.
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83 | */
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84 | public static SHPShape create(int type) throws ShapefileException { |
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85 | SHPShape shape; |
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86 | 1132 | vcaballero | |
87 | 2841 | caballero | switch (type) {
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88 | case 1: |
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89 | case 11: |
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90 | case 21: |
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91 | shape = new SHPPoint(type);
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92 | 1132 | vcaballero | |
93 | 2841 | caballero | break;
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94 | 1132 | vcaballero | |
95 | 2841 | caballero | case 3: |
96 | case 13: |
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97 | case 23: |
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98 | shape = new SHPMultiLine(type);
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99 | 1132 | vcaballero | |
100 | 2841 | caballero | break;
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101 | 1132 | vcaballero | |
102 | 2841 | caballero | case 5: |
103 | case 15: |
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104 | case 25: |
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105 | shape = new SHPPolygon(type);
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106 | 1132 | vcaballero | |
107 | 2841 | caballero | break;
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108 | 1132 | vcaballero | |
109 | 2841 | caballero | case 8: |
110 | case 18: |
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111 | case 28: |
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112 | shape = new SHPMultiPoint(type);
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113 | 1132 | vcaballero | |
114 | 2841 | caballero | break;
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115 | 1132 | vcaballero | |
116 | 2841 | caballero | default:
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117 | shape = null;
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118 | } |
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119 | 1132 | vcaballero | |
120 | 2841 | caballero | return shape;
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121 | } |
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122 | 1132 | vcaballero | |
123 | 2841 | caballero | /**
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124 | * Crea un fichero en formato shape con las geometr?as que se pasan como
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125 | * par?metro en forma de array, un bitset para saber las seleccionadas, un
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126 | * SelectableDataSource para obtener los valores y el fichero a crear.
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127 | *
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128 | * @param fgs Array de geometr?as.
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129 | * @param bitset Bitset con la selecci?n.
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130 | * @param sds SelectableDataSource.
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131 | * @param f Fichero a crear o modificar.
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132 | */
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133 | public static void SHPFileFromGeometries(IGeometry[] fgs, BitSet bitset, |
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134 | SelectableDataSource sds, File f) {
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135 | SHPOnlyFromGeometries(fgs, f); |
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136 | 2197 | vcaballero | |
137 | 2841 | caballero | DBFFromGeometries dfg = new DBFFromGeometries(fgs, f);
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138 | dfg.create(sds, bitset); |
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139 | } |
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140 | 2197 | vcaballero | |
141 | 2841 | caballero | /**
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142 | * Obtiene un fichero shape con las geometr?as que se pasan como par?metro,
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143 | * sin crear un dbf.
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144 | *
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145 | * @param fgs Array de IGeometries.
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146 | * @param f Fichero que hay que crear.
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147 | */
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148 | public static void SHPOnlyFromGeometries(IGeometry[] fgs, File f) { |
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149 | SHPSHXFromGeometries ssfg = new SHPSHXFromGeometries(fgs, f);
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150 | ssfg.create(); |
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151 | } |
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152 | 2197 | vcaballero | |
153 | 2841 | caballero | /**
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154 | * Devuelve un array con dos doubles, el primero representa el m?nimo valor
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155 | * y el segundo el m?ximo de entre los valores que se pasan como par?metro
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156 | * en forma de array.
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157 | *
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158 | * @param zs Valores a comprobar.
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159 | *
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160 | * @return Array de doubles con el valor m?nimo y el valor m?ximo.
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161 | */
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162 | public static double[] getZMinMax(double[] zs) { |
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163 | if (zs == null) { |
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164 | return null; |
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165 | } |
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166 | 2197 | vcaballero | |
167 | 2841 | caballero | double min = Double.MAX_VALUE; |
168 | 11226 | caballero | double max = Double.NEGATIVE_INFINITY; |
169 | 2197 | vcaballero | |
170 | 2841 | caballero | for (int i = 0; i < zs.length; i++) { |
171 | if (zs[i] > max) {
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172 | max = zs[i]; |
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173 | } |
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174 | 2197 | vcaballero | |
175 | 2841 | caballero | if (zs[i] < min) {
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176 | min = zs[i]; |
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177 | } |
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178 | } |
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179 | |||
180 | return new double[] { min, max }; |
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181 | } |
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182 | 224 | vcaballero | } |