Mercurial > mxd2map

annotate src/java/de/intevation/mxd/reader/MapReader.java @ 247:30e10eb9ac68

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Print out a message if an empty layer is not written to the mapfile.
author raimund renkert <raimund.renkert@intevation.de>
date Wed, 10 Aug 2011 13:23:29 +0200
parents df4e0946ef02
children 5a2b5bc066eb
rev   line source
243
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1 /*
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2 * Copyright (c) 2011 by Intevation GmbH, Germany <info@intevation.de>
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3 *
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4 * This file is part of MXD2map.
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5 *
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6 * This program is free software under the LGPL (>=v2.1)
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7 * Read the file LICENCE.txt coming with the software for details
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8 * or visit http://www.gnu.org/licenses/ if it does not exist.
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9 *
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10 * MXD2map has been developed on behalf of the
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11 * Bundesamt fuer Seeschifffahrt und Hydrographie (BSH) in Hamburg
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12 * by Intevation GmbH.
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13 *
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14 * Authors:
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15 * Raimund Renkert <raimund.renkert@intevation.de>
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16 * Bjoern Schilberg <bjoern.schilberg@intevation.de>
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17 * Stephan Holl <stephan.holl@intevation.de>
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18 */
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19
33
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20 package de.intevation.mxd.reader;
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21
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22 import java.io.IOException;
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23
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24 import org.apache.log4j.Logger;
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25
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26 import com.esri.arcgis.carto.IMap;
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27 import com.esri.arcgis.carto.Map;
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28 import com.esri.arcgis.geometry.ISpatialReference;
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29 import com.esri.arcgis.geometry.ProjectedCoordinateSystem;
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30 import com.esri.arcgis.geometry.GeographicCoordinateSystem;
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31 import com.esri.arcgis.geometry.UnknownCoordinateSystem;
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32 import com.esri.arcgis.geometry.Projection;
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33 import com.esri.arcgis.geometry.IEnvelope;
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34
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35 import org.w3c.dom.Element;
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36
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37 import de.intevation.mxd.utils.MapToXMLUtils;
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38
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39 /**
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40 * Reads map information.
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41 *
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42 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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43 */
43
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44 public class MapReader {
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45 /**
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46 * The Logger.
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47 */
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48 private static final Logger logger = Logger.getLogger(MapReader.class);
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49
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50 /**
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51 * Private member.
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52 */
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53 private Map map;
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54 private MapToXMLUtils util;
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55
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56 /**
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57 * Constructor with ArcGIS map.
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58 *
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59 * @param map The ArcGIS map object.
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60 */
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61 public MapReader(IMap map)
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62 throws Exception {
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63 logger.debug("constructor()");
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64 if(map instanceof Map) {
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65 this.map = (Map)map;
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66 }
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67 else {
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68 throw new Exception("Not an instance of \"Map\"!");
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69 }
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70 }
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71
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72 /**
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73 * Reads the Map attributes.
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74 */
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75 public void read()
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76 throws IOException {
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77 logger.debug("read()");
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78 if(util == null) {
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79 throw new IOException("Can not write to document.");
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80 }
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81
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82 //Create XML Element for map.
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83 Element mapElement;
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84 try{
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85 mapElement = util.createMap();
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86 }
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87 catch(Exception e){
121
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88 logger.error("Could not create DOM element. Aborting.");
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89 throw new IOException("Error creating DOM element.");
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90 }
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91
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92 //Read map name.
121
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93 try {
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94 mapElement.setAttribute("name", map.getName());
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95 }
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96 catch(IOException ioe) {
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97 logger.warn(
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98 "Could not read map name." +
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99 " Setting map name to \"default-map\"");
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100 mapElement.setAttribute("name", "default-map");
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101 }
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102
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103 //Read map extent.
121
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104 try {
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105 IEnvelope ext = map.getExtent();
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106 mapElement.setAttribute(
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107 "extent_max_x",
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108 String.valueOf(ext.getXMax()));
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109 mapElement.setAttribute(
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110 "extent_max_y",
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111 String.valueOf(ext.getYMax()));
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112 mapElement.setAttribute(
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113 "extent_min_x",
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114 String.valueOf(ext.getXMin()));
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115 mapElement.setAttribute(
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116 "extent_min_y",
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117 String.valueOf(ext.getYMin()));
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118 }
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119 catch(IOException ioe) {
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120 logger.warn("Could not read map extend. Setting to 0, 0, 0, 0.");
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121 mapElement.setAttribute("extend_max_x", "0");
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122 mapElement.setAttribute("extend_min_x", "0");
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123 mapElement.setAttribute("extend_max_y", "0");
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124 mapElement.setAttribute("extend_min_y", "0");
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125 }
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126
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127 //Read map units.
121
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128 int units = 0;
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129 try {
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130 units = map.getMapUnits();
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131 }
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132 catch(IOException ioe) {
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133 logger.warn(
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134 "Could not read map units." +
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135 " Setting map units to unknown.");
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136 units = 0;
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137 }
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138
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139 String s_units;
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140 switch(units) {
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141 case 1: s_units = "inches"; break;
121
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142 case 2: s_units = "points"; break;
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143 case 3: s_units = "feet"; break;
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144 case 4: s_units = "yards"; break;
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145 case 5: s_units = "miles"; break;
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146 case 6: s_units = "nauticalmiles"; break;
121
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147 case 7: s_units = "millimeters"; break;
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148 case 8: s_units = "centimeters"; break;
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149 case 9: s_units = "meters"; break;
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150 case 10: s_units = "kilometers"; break;
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151 case 11: s_units = "degree"; break;
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152 case 12: s_units = "decimeters"; break;
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153 case 13: s_units = "units_last"; break;
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154 default : s_units = "unknown"; break;
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155 }
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156 mapElement.setAttribute("units", s_units);
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157
121
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158 if(units == 0) {
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159 logger.warn(
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160 "Unknown units." +
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161 " Please edit units in resulting mapfile.");
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162 }
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163
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164 try {
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165 mapElement.setAttribute(
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166 "scale",
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167 String.valueOf(map.getMaxScale()));
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168 }
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169 catch(IOException ioe) {
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170 logger.warn("Could not read map scale. Setting map scale to 1000");
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171 mapElement.setAttribute("scale", "1000");
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172 }
39
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173
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174 //Read the projection.
121
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175 try {
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176 ISpatialReference sr = map.getSpatialReference();
170
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177 int projection = 0;
121
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178 if(sr instanceof ProjectedCoordinateSystem) {
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179 ProjectedCoordinateSystem pcs = (ProjectedCoordinateSystem)sr;
170
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180 projection = pcs.getFactoryCode();
121
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181 }
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182 else if(sr instanceof GeographicCoordinateSystem) {
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183 GeographicCoordinateSystem gcs = (GeographicCoordinateSystem)sr;
170
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184 projection = gcs.getFactoryCode();
121
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185 }
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186 else if(sr instanceof UnknownCoordinateSystem) {
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187 UnknownCoordinateSystem ucs = (UnknownCoordinateSystem)sr;
170
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188 projection = 0;
121
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189 }
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190 else{
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191 logger.debug(
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192 "Unknown SpatialReference: " +
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193 sr.getClass().toString());
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194 }
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195
170
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196 if(projection == 0) {
121
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197 logger.warn(
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198 "Unknown projection." +
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199 " Please edit projection in resulting mapfile.");
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200 }
170
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201 mapElement.setAttribute("projection", String.valueOf(projection));
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202 }
121
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203 catch(IOException ioe) {
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204 logger.warn(
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205 "Could not read map projection." +
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206 " Setting map projection to unknown.");
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207 mapElement.setAttribute("projection", "Unknown");
27
e5fdc37f8f94 Added XMLUtils to store map information.
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208 }
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209 }
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210
43
ef7ca23c4233 Added comments, done some code styling and removed typos.
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211 /**
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212 * Set the utilities.
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213 */
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214 public void setUtil(MapToXMLUtils util) {
31
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215 this.util = util;
25
cbd67b1100d8 Initial commit of the first prototype.
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216 }
cbd67b1100d8 Initial commit of the first prototype.
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217 }
cbd67b1100d8 Initial commit of the first prototype.
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218 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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