Mercurial > mxd2map > mxd2map

annotate src/java/de/intevation/mxd/reader/RasterLayerReader.java @ 307:f9e53dcc7424

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Add Read/Write Support for Projections on a per Layer basis
author Andre Heinecke <aheinecke@intevation.de>
date Thu, 06 Sep 2012 18:58:41 +0200
parents ea3fde77ea48
children 5e3a40a84539
rev   line source
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Andre Heinecke <aheinecke@intevation.de>
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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
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20 package de.intevation.mxd.reader;
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21
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22 import org.apache.log4j.Logger;
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23
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24 import com.esri.arcgis.carto.ILayer;
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25 import com.esri.arcgis.carto.RasterLayer;
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26 import com.esri.arcgis.carto.AnnotateLayerPropertiesCollection;
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27 import com.esri.arcgis.carto.IAnnotateLayerProperties;
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28 import com.esri.arcgis.carto.LabelEngineLayerProperties;
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29 import com.esri.arcgis.geodatabase.RasterDatasetName;
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30 import com.esri.arcgis.system.IName;
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31 import com.esri.arcgis.system.IPropertySet;
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32 import com.esri.arcgis.geometry.Envelope;
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33 import com.esri.arcgis.geometry.ISpatialReference;
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34 import com.esri.arcgis.geometry.ProjectedCoordinateSystem;
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35 import com.esri.arcgis.geometry.GeographicCoordinateSystem;
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36 import com.esri.arcgis.geometry.UnknownCoordinateSystem;
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37 import com.esri.arcgis.geometry.Projection;
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38
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39 import org.w3c.dom.Element;
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40
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41 import de.intevation.mxd.utils.MapToXMLUtils;
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42 import java.io.IOException;
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43 import com.esri.arcgis.interop.AutomationException;
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44 /**
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45 * Reads Layer information.
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46 *
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47 * @author <a href="mailto:aheinecke@intevation.de">Andre Heinecke</a>
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48 */
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49 public class RasterLayerReader
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50 implements ILayerReader {
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51
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52 /**
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53 * The logger.
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54 */
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55 private static final Logger logger =
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56 Logger.getLogger(RasterLayerReader.class);
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57
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58 /**
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59 * Privte member.
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60 */
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61 private RasterLayer layer;
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62 private MapToXMLUtils util;
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63
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64 /**
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65 * Constructor with layer.
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66 *
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67 * @param layer The ArcGIS layer object.
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68 */
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69 public RasterLayerReader(ILayer layer)
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70 throws Exception {
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71 if(layer instanceof RasterLayer) {
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72 this.layer = (RasterLayer)layer;
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73 }
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74 else {
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75 throw new Exception("Not an instance of RasterLayer: " +
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76 layer.getClass().toString());
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77 }
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78 }
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79
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80 /**
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81 * Setter for XML document helper.
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82 *
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83 * @param util The helper for storing map information.
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84 */
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85 public void setUtil(MapToXMLUtils util) {
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86 this.util = util;
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87 }
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88
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89 /**
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90 * Reads the Layer content.
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91 *
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92 * @return The layer XML element.
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93 */
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94 public Element read()
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95 throws IOException{
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96 logger.debug("read()");
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97 Element layerElement;
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98 try {
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99 layerElement = util.addLayer();
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100 }
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101 catch(Exception e) {
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102 logger.error("Failed to create DOM-Element for Layer.");
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103 return null;
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104 }
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105
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106 try {
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107 layerElement.setAttribute("name", layer.getName());
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108 }
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109 catch(Exception e) {
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110 logger.warn(
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111 "Could not read layer name." +
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112 " Stopped reading layer.");
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113 throw new IOException("Error reading layer name.");
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114 }
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115
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116 try {
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117 layerElement.setAttribute("min_scale",
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118 String.valueOf(layer.getMinimumScale()));
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119 }
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120 catch(IOException ioe) {
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121 logger.warn("Could not read minimum scale.");
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122 }
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123
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124 try {
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125 layerElement.setAttribute("max_scale",
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126 String.valueOf(layer.getMaximumScale()));
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127 }
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128 catch(Exception e) {
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129 logger.warn(
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130 "Could not read maximum scale.");
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131 }
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132
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133 try {
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134 if(layer.isVisible()) {
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135 layerElement.setAttribute("status", "on");
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136 }
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137 else {
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138 layerElement.setAttribute("status", "off");
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139 }
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140 }
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141 catch(Exception e) {
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142 logger.warn(
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143 "Could not read layer status." +
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144 " Setting layer status to \"on\".");
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145 layerElement.setAttribute("status", "on");
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146 }
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147 try {
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148 layerElement.setAttribute("data_source", layer.getFilePath());
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149 }
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150 catch(Exception e) {
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151 logger.warn(
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152 "Could not read datasource." +
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153 " Stopped reading layer " + layer.getName() + ".");
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154 util.removeLayer(layerElement);
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155 return null;
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156 }
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157 try {
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158 Envelope rect = (Envelope)layer.getExtent();
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159 layerElement.setAttribute(
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160 "extent_min_x",
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161 String.valueOf(rect.getXMin ()));
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162 layerElement.setAttribute(
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163 "extent_max_x",
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164 String.valueOf(rect.getXMax()));
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165 layerElement.setAttribute(
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166 "extent_min_y",
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167 String.valueOf(rect.getYMin()));
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168 layerElement.setAttribute(
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169 "extent_max_y",
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170 String.valueOf(rect.getYMax()));
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171 }
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172 catch(Exception e) {
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173 logger.warn(
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174 "Could not read extent from layer "
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175 + layer.getName() + ".");
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176 }
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177 //Read the projection.
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178 try {
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179 ISpatialReference sr = layer.getSpatialReference();
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180 int projection = 0;
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181 if(sr instanceof ProjectedCoordinateSystem) {
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182 ProjectedCoordinateSystem pcs = (ProjectedCoordinateSystem)sr;
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183 projection = pcs.getFactoryCode();
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184 }
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185 else if(sr instanceof GeographicCoordinateSystem) {
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186 GeographicCoordinateSystem gcs = (GeographicCoordinateSystem)sr;
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187 projection = gcs.getFactoryCode();
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188 }
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189 else if(sr instanceof UnknownCoordinateSystem) {
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190 UnknownCoordinateSystem ucs = (UnknownCoordinateSystem)sr;
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191 projection = 0;
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192 }
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193 else{
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194 logger.debug(
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195 "Unknown SpatialReference: " +
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196 sr.getClass().toString());
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197 }
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198
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199 if(projection == 0) {
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200 logger.warn(
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201 "Unknown projection for Layer:" + layer.getName() +
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202 " Please edit projection in resulting mapfile.");
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203 }
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204 layerElement.setAttribute("projection", String.valueOf(projection));
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205 }
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206 catch(Exception e) {
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207 logger.warn("Could not read layer projection.");
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208 }
303
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209
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210 // Static Attributes for Raster:
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211 layerElement.setAttribute("type", "raster");
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212 layerElement.setAttribute("connection_type", "local");
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213
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214 return layerElement;
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215 }
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216 }
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217 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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