svn-gvsig-desktop / tags / v1_1_Build_1010 / libraries / libCq CMS for java.old / src / org / cresques / io / TrkFile.java @ 12804
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1 | 56 | luisw | /*
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2 | 2809 | nacho | * Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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3 | *
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4 | * Copyright (C) 2004-5.
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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 2
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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19 | *
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20 | * For more information, contact:
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21 | *
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22 | * cresques@gmail.com
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23 | 56 | luisw | */
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24 | package org.cresques.io; |
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25 | |||
26 | 2809 | nacho | import org.cresques.cts.ICoordTrans; |
27 | import org.cresques.cts.IProjection; |
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28 | |||
29 | import org.cresques.px.IObjList; |
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30 | import org.cresques.px.PxObjList; |
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31 | import org.cresques.px.gml.LineString; |
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32 | |||
33 | 56 | luisw | import java.io.DataInputStream; |
34 | import java.io.EOFException; |
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35 | import java.io.FileInputStream; |
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36 | import java.io.FileNotFoundException; |
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37 | import java.io.IOException; |
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38 | import java.io.InputStream; |
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39 | |||
40 | |||
41 | /**
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42 | * @author luisw
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43 | */
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44 | 2809 | nacho | public class TrkFile extends GeoFile { |
45 | private DataInputStream is; |
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46 | long l = 0; |
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47 | LineString line; |
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48 | 56 | luisw | |
49 | 2809 | nacho | public TrkFile(IProjection proj, String name) { |
50 | super(proj, name);
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51 | } |
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52 | 56 | luisw | |
53 | 2809 | nacho | /* (no Javadoc)
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54 | * @see org.cresques.io.GeoFile#load()
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55 | */
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56 | public GeoFile load() {
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57 | try {
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58 | return load(new FileInputStream(name)); |
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59 | } catch (NumberFormatException e) { |
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60 | // TODO Bloque catch generado autom?ticamente
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61 | e.printStackTrace(); |
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62 | } catch (FileNotFoundException e) { |
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63 | // TODO Bloque catch generado autom?ticamente
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64 | e.printStackTrace(); |
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65 | } catch (Exception e) { |
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66 | // TODO Bloque catch generado autom?ticamente
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67 | e.printStackTrace(); |
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68 | } |
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69 | 56 | luisw | |
70 | 2809 | nacho | return this; |
71 | } |
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72 | 56 | luisw | |
73 | 2809 | nacho | public GeoFile load(InputStream is) throws NumberFormatException, Exception { |
74 | System.out.println("Trk: Cargando '" + name + "' ..."); |
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75 | this.is = new DataInputStream(is); |
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76 | line = new LineString();
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77 | |||
78 | while (readPoint()) {
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79 | l++; |
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80 | } |
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81 | |||
82 | extent.add(line.getExtent()); |
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83 | is.close(); |
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84 | System.out.println("Trk: '" + name + "' cargado. (" + l + " puntos)."); |
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85 | |||
86 | return this; |
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87 | } |
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88 | |||
89 | public boolean readPoint() { |
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90 | int h;
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91 | int m;
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92 | int s;
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93 | int sgn = 1; |
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94 | double D;
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95 | double M;
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96 | double S;
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97 | double lat;
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98 | double lng;
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99 | |||
100 | try {
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101 | h = is.readUnsignedByte(); |
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102 | m = is.readUnsignedByte(); |
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103 | s = is.readUnsignedByte(); |
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104 | is.skipBytes(1);
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105 | D = is.readUnsignedByte(); |
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106 | M = is.readByte(); |
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107 | S = is.readUnsignedShort(); |
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108 | S /= 1000.0;
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109 | |||
110 | if (M < 0) { |
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111 | sgn = -1;
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112 | M *= -1;
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113 | } else {
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114 | sgn = 1;
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115 | } |
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116 | |||
117 | lat = sgn * (D + ((M / 60D) + (S / 3600D))); |
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118 | D = is.readUnsignedByte(); |
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119 | M = is.readByte(); |
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120 | S = is.readUnsignedShort(); |
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121 | S /= 1000.0;
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122 | |||
123 | if (M < 0) { |
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124 | sgn = -1;
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125 | M *= -1;
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126 | } else {
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127 | sgn = 1;
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128 | } |
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129 | |||
130 | lng = sgn * (D + ((M / 60D) + (S / 3600D))); |
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131 | line.add(proj.createPoint(lng, lat)); |
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132 | } catch (EOFException eof) { |
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133 | return false; |
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134 | } catch (IOException e) { |
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135 | // TODO Bloque catch generado autom?ticamente
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136 | e.printStackTrace(); |
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137 | |||
138 | return false; |
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139 | } |
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140 | |||
141 | return true; |
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142 | } |
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143 | |||
144 | /* (no Javadoc)
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145 | * @see org.cresques.io.GeoFile#reProject(org.cresques.geo.ReProjection)
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146 | */
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147 | public IObjList getObjects() {
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148 | IObjList oList = new PxObjList(proj);
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149 | oList.add(line); |
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150 | |||
151 | return oList;
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152 | } |
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153 | |||
154 | public void reProject(ICoordTrans rp) { |
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155 | line.reProject(rp); |
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156 | setProjection(rp.getPDest()); |
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157 | } |
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158 | |||
159 | /* (non-Javadoc)
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160 | * @see org.cresques.io.GeoFile#close()
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161 | */
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162 | public void close() { |
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163 | // TODO Auto-generated method stub
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164 | } |
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165 | 56 | luisw | } |