svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.file / org.gvsig.fmap.dal.file.shp / src / main / java / org / gvsig / fmap / dal / store / shp / utils / ShapeFileHeader2.java @ 40435
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1 | 40435 | jjdelcerro | /*
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2 | * GISToolkit - Geographical Information System Toolkit
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3 | * (C) 2002, Ithaqua Enterprises Inc.
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4 | *
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5 | * This library is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU Lesser General Public
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7 | * License as published by the Free Software Foundation;
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8 | * version 2.1 of the License.
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9 | *
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10 | * This library 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 GNU
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13 | * Lesser 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 Lesser General Public
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16 | * License along with this library; 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 | */
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20 | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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21 | *
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22 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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23 | *
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24 | * This program is free software; you can redistribute it and/or
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25 | * modify it under the terms of the GNU General Public License
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26 | * as published by the Free Software Foundation; either version 2
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27 | * of the License, or (at your option) any later version.
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28 | *
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29 | * This program is distributed in the hope that it will be useful,
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30 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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31 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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32 | * GNU General Public License for more details.
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33 | *
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34 | * You should have received a copy of the GNU General Public License
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35 | * along with this program; if not, write to the Free Software
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36 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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37 | *
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38 | * For more information, contact:
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39 | *
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40 | * Generalitat Valenciana
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41 | * Conselleria d'Infraestructures i Transport
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42 | * Av. Blasco Ib??ez, 50
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43 | * 46010 VALENCIA
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44 | * SPAIN
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45 | *
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46 | * +34 963862235
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47 | * gvsig@gva.es
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48 | * www.gvsig.gva.es
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49 | *
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50 | * or
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51 | *
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52 | * IVER T.I. S.A
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53 | * Salamanca 50
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54 | * 46005 Valencia
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55 | * Spain
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56 | *
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57 | * +34 963163400
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58 | * dac@iver.es
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59 | */
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60 | package org.gvsig.fmap.dal.store.shp.utils; |
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61 | |||
62 | import java.nio.ByteBuffer; |
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63 | import java.nio.ByteOrder; |
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64 | |||
65 | import org.gvsig.utils.bigfile.BigByteBuffer2; |
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66 | |||
67 | |||
68 | |||
69 | /**
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70 | * Class to represent the header in the shape file.
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71 | */
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72 | public class ShapeFileHeader2 { |
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73 | /**
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74 | * Shape Type Value Shape Type 0 Null Shape 1 Point 3 PolyLine 5 Polygon 8
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75 | * MultiPoint 11 PointZ 13 PolyLineZ 15 PolygonZ 18 MultiPointZ 21 PointM
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76 | * 23 PolyLineM 25 PolygonM 28 MultiPointM 31 MultiPatch
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77 | */
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78 | |||
79 | /* The null shape type, there is no shape for this record. */
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80 | public static final int SHAPE_NULL = 0; |
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81 | public static final int SHAPE_POINT = 1; |
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82 | public static final int SHAPE_POLYLINE = 3; |
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83 | public static final int SHAPE_POLYGON = 5; |
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84 | public static final int SHAPE_MULTIPOINT = 8; |
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85 | public static final int SHAPE_POINTZ = 11; |
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86 | public static final int SHAPE_POLYLINEZ = 13; |
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87 | public static final int SHAPE_POLYGONZ = 15; |
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88 | public static final int SHAPE_MULTIPOINTZ = 18; |
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89 | public static final int SHAPE_POINTM = 21; |
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90 | public static final int SHAPE_POLYLINEM = 23; |
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91 | public static final int SHAPE_POLYGONM = 25; |
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92 | public static final int SHAPE_MULTIPOINTM = 28; |
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93 | public static final int SHAPE_MULTIPATCH = 31; |
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94 | |||
95 | /** File Code, must be the value 9994 */
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96 | public int myFileCode = 9994; |
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97 | |||
98 | /** Unused 1; */
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99 | public int myUnused1 = 0; |
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100 | |||
101 | /** Unused 2; */
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102 | public int myUnused2 = 0; |
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103 | |||
104 | /** Unused 3; */
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105 | public int myUnused3 = 0; |
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106 | |||
107 | /** Unused 4; */
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108 | public int myUnused4 = 0; |
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109 | |||
110 | /** Unused 5; */
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111 | public int myUnused5 = 0; |
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112 | |||
113 | /** File Length; */
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114 | public int myFileLength = 0; |
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115 | |||
116 | /** Version of the file. */
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117 | public int myVersion = 1000; |
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118 | public int myShapeType = 0; |
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119 | |||
120 | /** BoundingBox Xmin */
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121 | public double myXmin = 0; |
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122 | |||
123 | /** BoundingBox Ymin */
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124 | public double myYmin = 0; |
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125 | |||
126 | /** BoundingBox Xmax */
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127 | public double myXmax = 0; |
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128 | |||
129 | /** BoundingBox Ymax */
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130 | public double myYmax = 0; |
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131 | |||
132 | /** BoundingBox Zmin */
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133 | public double myZmin = 0; |
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134 | |||
135 | /** BoundingBox Zmax */
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136 | public double myZmax = 0; |
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137 | |||
138 | /** BoundingBox Zmin */
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139 | public double myMmin = 0; |
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140 | |||
141 | /** BoundingBox Zmax */
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142 | public double myMmax = 0; |
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143 | |||
144 | // notify about warnings.
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145 | private boolean myWarning = true; |
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146 | |||
147 | /**
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148 | * ShapeFileHeader constructor comment.
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149 | */
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150 | public ShapeFileHeader2() {
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151 | super();
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152 | } |
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153 | |||
154 | /**
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155 | * Return the file code.
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156 | *
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157 | * @return Entero.
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158 | */
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159 | public int getFileCode() { |
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160 | return myFileCode;
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161 | } |
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162 | |||
163 | /**
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164 | * Return the version of the file.
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165 | *
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166 | * @return Versi?n.
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167 | */
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168 | public int getVersion() { |
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169 | return myVersion;
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170 | } |
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171 | |||
172 | /**
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173 | * Get the extents of the shape file.
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174 | *
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175 | * @return FullExtent.
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176 | */
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177 | public java.awt.geom.Rectangle2D.Double getFileExtents() {
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178 | return new java.awt.geom.Rectangle2D.Double(myXmin, myYmin, |
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179 | myXmax - myXmin, myYmax - myYmin); |
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180 | } |
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181 | |||
182 | /**
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183 | * Print warnings to system.out.
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184 | *
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185 | * @param inWarning boolean.
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186 | */
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187 | public void setWarnings(boolean inWarning) { |
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188 | myWarning = inWarning; |
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189 | } |
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190 | |||
191 | /**
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192 | * Return the length of the header in 16 bit words..
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193 | *
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194 | * @return Longitud de la cabecera.
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195 | */
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196 | public int getHeaderLength() { |
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197 | return 50; |
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198 | } |
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199 | |||
200 | /**
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201 | * Return the number of 16 bit words in the shape file as recorded in the
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202 | * header
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203 | *
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204 | * @return Longitud del fichero.
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205 | */
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206 | public int getFileLength() { |
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207 | return myFileLength;
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208 | } |
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209 | |||
210 | /**
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211 | * Read the header from the shape file.
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212 | *
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213 | * @param in ByteBuffer.
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214 | */
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215 | public void readHeader(BigByteBuffer2 in) { |
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216 | // the first four bytes are integers
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217 | // in.setLittleEndianMode(false);
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218 | in.order(ByteOrder.BIG_ENDIAN);
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219 | myFileCode = in.getInt(); |
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220 | |||
221 | if (myFileCode != 9994) { |
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222 | warn("File Code = " + myFileCode + " Not equal to 9994"); |
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223 | } |
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224 | |||
225 | // From 4 to 8 are unused.
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226 | myUnused1 = in.getInt(); |
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227 | |||
228 | // From 8 to 12 are unused.
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229 | myUnused2 = in.getInt(); |
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230 | |||
231 | // From 12 to 16 are unused.
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232 | myUnused3 = in.getInt(); |
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233 | |||
234 | // From 16 to 20 are unused.
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235 | myUnused4 = in.getInt(); |
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236 | |||
237 | // From 20 to 24 are unused.
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238 | myUnused5 = in.getInt(); |
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239 | |||
240 | // From 24 to 28 are the file length.
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241 | myFileLength = in.getInt(); |
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242 | |||
243 | // From 28 to 32 are the File Version.
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244 | in.order(ByteOrder.LITTLE_ENDIAN);
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245 | myVersion = in.getInt(); |
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246 | |||
247 | // From 32 to 36 are the Shape Type.
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248 | myShapeType = in.getInt(); |
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249 | |||
250 | // From 36 to 44 are Xmin.
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251 | myXmin = in.getDouble(); // Double.longBitsToDouble(in.getLong());
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252 | |||
253 | // From 44 to 52 are Ymin.
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254 | myYmin = in.getDouble(); |
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255 | |||
256 | // From 52 to 60 are Xmax.
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257 | myXmax = in.getDouble(); |
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258 | |||
259 | // From 60 to 68 are Ymax.
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260 | myYmax = in.getDouble(); |
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261 | |||
262 | // From 68 to 76 are Zmin.
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263 | myZmin = in.getDouble(); |
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264 | |||
265 | // From 76 to 84 are Zmax.
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266 | myZmax = in.getDouble(); |
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267 | |||
268 | // From 84 to 92 are Mmin.
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269 | myMmin = in.getDouble(); |
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270 | |||
271 | // From 92 to 100 are Mmax.
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272 | myMmax = in.getDouble(); |
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273 | |||
274 | // that is all 100 bytes of the header.
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275 | } |
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276 | public void write(ByteBuffer out,int type, |
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277 | int numGeoms,int length,double minX,double minY,double maxX,double maxY,double minZ,double maxZ,double minM,double maxM){ |
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278 | out.order(ByteOrder.BIG_ENDIAN);
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279 | |||
280 | out.putInt(myFileCode); |
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281 | |||
282 | for (int i = 0; i < 5; i++) { |
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283 | out.putInt(0); //Skip unused part of header |
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284 | } |
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285 | |||
286 | out.putInt(length); |
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287 | |||
288 | out.order(ByteOrder.LITTLE_ENDIAN);
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289 | |||
290 | out.putInt(myVersion); |
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291 | out.putInt(type); |
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292 | |||
293 | //write the bounding box
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294 | out.putDouble(minX); |
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295 | out.putDouble(minY); |
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296 | out.putDouble(maxX); |
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297 | out.putDouble(maxY); |
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298 | /*
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299 | out.putDouble(minZ);
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300 | out.putDouble(minZ);
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301 | out.putDouble(maxM);
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302 | out.putDouble(maxM);*/
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303 | out.order(ByteOrder.BIG_ENDIAN);
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304 | for (int i = 0; i < 8; i++) { |
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305 | out.putInt(0); //Skip unused part of header |
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306 | } |
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307 | |||
308 | } |
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309 | |||
310 | /**
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311 | * Muestra por consola los warning.
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312 | *
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313 | * @param inWarn warning.
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314 | */
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315 | private void warn(String inWarn) { |
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316 | if (myWarning) {
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317 | System.out.print("WARNING: "); |
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318 | System.out.println(inWarn);
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319 | } |
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320 | } |
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321 | } |