Mercurial > mxd2map
annotate src/java/de/intevation/mxd/writer/MapScriptWriter.java @ 45:90d4de478f15
Added support for SimpleMarkerSymbol and SimpleFillSymbol in
ClassBreaksRendererReader.
author | Raimund Renkert <rrenkert@intevation.de> |
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date | Mon, 18 Apr 2011 16:03:07 +0200 |
parents | 9b5fb5e5914d |
children | 34a93dad7604 |
rev | line source |
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Introduced MapScript writer.
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1 package de.intevation.mxd.writer; |
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2 |
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3 import org.apache.log4j.Logger; |
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4 |
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5 import org.w3c.dom.Document; |
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6 import org.w3c.dom.Element; |
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7 import org.w3c.dom.NodeList; |
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8 |
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9 import javax.xml.xpath.XPathConstants; |
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10 import java.awt.Color; |
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11 |
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12 import edu.umn.gis.mapscript.mapObj; |
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13 import edu.umn.gis.mapscript.layerObj; |
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14 import edu.umn.gis.mapscript.classObj; |
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15 import edu.umn.gis.mapscript.styleObj; |
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16 import edu.umn.gis.mapscript.colorObj; |
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17 import edu.umn.gis.mapscript.symbolObj; |
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18 import edu.umn.gis.mapscript.symbolSetObj; |
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19 import edu.umn.gis.mapscript.lineObj; |
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20 import edu.umn.gis.mapscript.pointObj; |
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21 |
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22 import edu.umn.gis.mapscript.MS_UNITS; |
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23 import edu.umn.gis.mapscript.MS_LAYER_TYPE; |
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24 import edu.umn.gis.mapscript.MS_SYMBOL_TYPE; |
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25 |
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26 import de.intevation.mxd.utils.XMLUtils; |
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27 |
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28 /** |
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29 * The Mapfile Writer. |
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30 * This Writer uses the MapScript Java API to create Mapfiles from a DOM. |
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31 * |
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32 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a> |
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33 */ |
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34 public class MapScriptWriter |
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35 implements IWriter |
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36 { |
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37 /** |
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38 * The Logger. |
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39 */ |
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40 private static final Logger logger = Logger.getLogger(MapScriptWriter.class); |
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41 |
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42 /** |
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43 * Private member. |
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44 */ |
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45 private Document root; |
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46 private mapObj map; |
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47 |
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48 |
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49 public MapScriptWriter() { |
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50 map = new mapObj(""); |
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51 } |
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52 |
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53 public MapScriptWriter(String path) { |
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54 map = new mapObj(path); |
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55 } |
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56 |
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57 /** |
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58 * Write the mapfile. |
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59 * @param doc The root document containin the map attributes. |
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60 * |
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61 * @return Currently always true. |
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62 */ |
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63 public boolean write(Document doc) { |
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64 logger.debug("write()"); |
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65 this.root = doc; |
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66 |
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67 //Get the filename. |
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68 Element fileNode = (Element)XMLUtils.xpath( |
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69 root, |
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70 "/mxd/file", |
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71 XPathConstants.NODE); |
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72 String filename = fileNode.getAttribute("name"); |
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73 if(filename.endsWith(".mxd")) { |
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74 filename = filename.replace(".mxd", ".map"); |
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75 } |
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76 //Write the map attributes. |
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77 writeMap(); |
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78 //Write the layers. |
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79 writeLayer(); |
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80 //Save the map. |
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81 mapObj cloneMap = map.cloneMap(); |
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82 cloneMap.save(filename); |
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83 return true; |
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84 } |
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85 |
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86 /** |
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87 * Create the map object and set the attributes. |
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88 */ |
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89 private void writeMap() { |
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90 logger.debug("writeMap()"); |
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91 //Get the map. |
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92 Element mapNode = (Element)XMLUtils.xpath( |
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93 root, |
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94 "/mxd/map", |
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95 XPathConstants.NODE); |
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96 |
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97 //TODO Get the following values from a template. |
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98 map.setShapepath("/home/intevation/mxd-testbed/testdata-frida"); |
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99 map.setHeight(700); |
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100 map.setWidth(800); |
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101 map.setProjection("EPSG:4326"); |
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102 |
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103 //Set the name. |
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104 map.setName(mapNode.getAttribute("name")); |
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105 map.setMetaData("wms_title", mapNode.getAttribute("name")); |
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106 //Set the extent. |
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107 map.setExtent( |
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108 Double.parseDouble(mapNode.getAttribute("extent_min_x")), |
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109 Double.parseDouble(mapNode.getAttribute("extent_min_y")), |
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110 Double.parseDouble(mapNode.getAttribute("extent_max_x")), |
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111 Double.parseDouble(mapNode.getAttribute("extent_max_y"))); |
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112 |
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113 //Set the units. |
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114 String units = mapNode.getAttribute("units"); |
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115 MS_UNITS msu; |
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116 if(units.equals("feet")) { |
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117 msu = MS_UNITS.MS_FEET; |
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118 } |
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119 else if(units.equals("inches")) { |
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120 msu = MS_UNITS.MS_INCHES; |
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121 } |
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122 else if(units.equals("kilometers")) { |
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123 msu = MS_UNITS.MS_KILOMETERS; |
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124 } |
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125 else if(units.equals("meters")) { |
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126 msu = MS_UNITS.MS_METERS; |
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127 } |
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128 else if(units.equals("miles")) { |
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129 msu = MS_UNITS.MS_MILES; |
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130 } |
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131 else if(units.equals("nauticalmiles")) { |
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132 msu = MS_UNITS.MS_NAUTICALMILES; |
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133 } |
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134 else if(units.equals("points")) { |
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135 msu = MS_UNITS.MS_PIXELS; |
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136 } |
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137 else { |
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138 msu = MS_UNITS.MS_DD; |
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139 } |
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140 map.setUnits(msu); |
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141 |
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142 //TODO: Find out whats the correct scale value. |
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143 //map.setScaledenom(Double.parseDouble(mapNode.getAttribute("scale"))); |
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144 } |
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145 |
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146 /** |
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147 * Create layer objects and set the attributes. |
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148 */ |
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149 private void writeLayer() { |
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150 logger.debug("writeLayer()"); |
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151 Element mapNode = (Element)XMLUtils.xpath( |
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152 root, |
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153 "/mxd/map", |
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154 XPathConstants.NODE); |
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155 NodeList list = mapNode.getElementsByTagName("layer"); |
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156 for(int i = 0; i < list.getLength(); i++) { |
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157 Element layerElement = (Element)list.item(i); |
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158 layerObj layer = new layerObj(map); |
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159 |
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160 //The layer name. |
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161 layer.setName(layerElement.getAttribute("name")); |
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162 |
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163 //The layer status. |
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164 String stat = layerElement.getAttribute("status"); |
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165 if (stat.equals("on")) { |
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166 layer.setStatus(1); |
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167 } |
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168 else { |
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169 layer.setStatus(0); |
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170 } |
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171 |
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172 //The scale. |
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173 double maxScale = |
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174 Double.parseDouble(layerElement.getAttribute("max_scale")); |
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175 double minScale = |
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176 Double.parseDouble(layerElement.getAttribute("min_scale")); |
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177 layer.setMaxscaledenom(maxScale); |
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178 layer.setMinscaledenom(minScale); |
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179 |
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180 //The layer type. |
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181 String type = layerElement.getAttribute("type"); |
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182 if(type.equals("point")) { |
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183 layer.setType(MS_LAYER_TYPE.MS_LAYER_POINT); |
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184 } |
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185 |
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186 //The layer datasource. |
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187 layer.setData(layerElement.getAttribute("data_source")); |
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188 |
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189 //Write classes. |
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190 writeClass(layer, layerElement); |
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191 } |
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192 |
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193 } |
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194 |
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195 /** |
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196 * Adds the classes to the layer. |
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197 * @param layer Mapscript layer object. |
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198 * @param layerElement Dom element containing the class attributes. |
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199 */ |
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200 private void writeClass(layerObj layer, Element layerElement) { |
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201 //Get all renderer elements (renderer in arcgis equals class in the |
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202 //mapfile.) |
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203 NodeList list = layerElement.getElementsByTagName("renderer"); |
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204 |
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205 //Create all found class objects and write the symbols and styles for |
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206 //each class. |
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207 for(int i = 0; i < list.getLength(); i++) { |
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208 Element classElement = (Element)list.item(i); |
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209 classObj co = new classObj(layer); |
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210 co.setName(classElement.getAttribute("name")); |
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211 if(classElement.hasAttribute("field_count")) { |
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212 int count = |
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213 Integer.parseInt(classElement.getAttribute("field_count")); |
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214 String exp = ""; |
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215 for(int j = 0; j < count; j++) { |
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216 //TODO Find a way to create Expressions. |
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217 exp = "([" + classElement.getAttribute("expression_field_" + j); |
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218 exp += "] = " + classElement.getAttribute("value") + ")"; |
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219 } |
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220 co.setExpression(exp); |
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221 } |
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222 //Write symbols and styles. |
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223 writeSymbol(co, classElement); |
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224 } |
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225 } |
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226 |
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227 /** |
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228 * Adds the symbols and styles to the mapfile. |
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229 * @param co Mapscript class object. |
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230 * @param classElement Dom element containing the style and symbol |
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231 * attributes. |
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232 */ |
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233 private void writeSymbol(classObj co, Element classElement) { |
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234 //Get all symbol elements from dom. |
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235 NodeList list = classElement.getElementsByTagName("symbol"); |
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236 |
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237 //Get the symbol set from the map object. |
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238 symbolSetObj symbolSet = map.getSymbolset(); |
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239 |
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240 // |
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241 for(int i = 0; i < list.getLength(); i++){ |
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242 Element symbolElement = (Element) list.item(i); |
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243 styleObj style = new styleObj(co); |
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244 style.setAngle( |
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245 Double.parseDouble(symbolElement.getAttribute("angle"))); |
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246 String c = symbolElement.getAttribute("color"); |
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247 Color col = Color.decode(c); |
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248 colorObj color = new colorObj( |
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249 col.getRed(), |
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250 col.getGreen(), |
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251 col.getBlue(), |
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252 -4); |
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253 style.setColor(color); |
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254 style.setSize(Double.parseDouble( |
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255 symbolElement.getAttribute("size"))); |
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256 Color oCol = Color.decode( |
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257 symbolElement.getAttribute("outline_color")); |
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258 colorObj outlineColor = new colorObj( |
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259 oCol.getRed(), |
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260 oCol.getGreen(), |
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261 oCol.getBlue(), |
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262 -4); |
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263 style.setOutlinecolor(outlineColor); |
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264 style.setOutlinewidth(Double.parseDouble( |
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265 symbolElement.getAttribute("outline_size"))); |
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266 |
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267 String name = symbolElement.getAttribute("name"); |
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268 style.setSymbolByName(map, name); |
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269 symbolObj sym = symbolSet.getSymbolByName(name); |
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270 |
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271 String symType = symbolElement.getAttribute("style"); |
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272 if(symType.equals("point")) { |
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273 lineObj points = new lineObj(); |
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274 points.add(new pointObj(1,1,0)); |
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275 sym.setType(MS_SYMBOL_TYPE.MS_SYMBOL_ELLIPSE.swigValue()); |
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276 sym.setPoints(points); |
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277 sym.setFilled(1); |
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278 } |
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279 } |
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280 saveSymbolSet(symbolSet); |
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281 } |
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282 |
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283 /** |
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284 * Save the symbol set. |
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285 * @param symbols The symbol set. |
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286 */ |
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287 private void saveSymbolSet(symbolSetObj symbols) { |
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288 Element fileNode = (Element)XMLUtils.xpath( |
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289 root, |
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290 "/mxd/file", |
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291 XPathConstants.NODE); |
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292 String filename = fileNode.getAttribute("name"); |
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293 String path = ""; |
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294 if(filename.contains("/")) { |
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295 path = filename.substring(0, filename.lastIndexOf("/")); |
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296 } |
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297 else if(filename.contains("\\")) { |
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298 path = filename.substring(0, filename.lastIndexOf("\\")); |
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299 } |
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300 symbols.save(path + "/symbols.sym"); |
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301 } |
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302 } |
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303 |