annotate src/java/de/intevation/mxd/writer/SymbolWriter.java @ 235:00a39e8b6eed

* INSTALL.txt: Added a paragraph to make the env-vars available in Apache * doku/source/_templates/layout.html: defining a custom footer with the version-string included * doku/source/conf.py: adopt versionstring and copyright * doku/source/functionality.txt: formating-cosmetics, correct icon
author Stephan Holl <stephan.holl@intevation.de>
date Fri, 05 Aug 2011 09:18:53 +0200
parents 0dc34dcdaedc
children df4e0946ef02
rev   line source
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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.Element;
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6
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7 import edu.umn.gis.mapscript.mapObj;
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8 import edu.umn.gis.mapscript.classObj;
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9 import edu.umn.gis.mapscript.styleObj;
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10 import edu.umn.gis.mapscript.symbolObj;
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11 import edu.umn.gis.mapscript.symbolSetObj;
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12 import edu.umn.gis.mapscript.lineObj;
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13 import edu.umn.gis.mapscript.pointObj;
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14 import edu.umn.gis.mapscript.fontSetObj;
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15 import edu.umn.gis.mapscript.hashTableObj;
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16 import edu.umn.gis.mapscript.MS_SYMBOL_TYPE;
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17
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18 import java.io.File;
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19
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20 /**
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21 * The interface to the mapfile writer.
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22 *
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23 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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24 */
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25 public class SymbolWriter {
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26
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27 /**
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28 * The Logger.
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29 */
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30 private static final Logger logger = Logger.getLogger(SymbolWriter.class);
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31
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32 /**
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33 * Private member.
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34 */
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35 private mapObj map;
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36 private classObj cl;
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37
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38 /**
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39 * Contructor with map object and class object.
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40 *
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41 * @param map The map object.
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42 * @param cl The class object containing the style.
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43 */
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44 public SymbolWriter (mapObj map, classObj cl) {
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45 this.map = map;
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46 this.cl = cl;
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47 }
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48
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49 /**
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50 * Write the content.
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51 *
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52 * @param symbolElement DOM element containg the style and symbol
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53 * attributes.
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54 */
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55 public boolean write(Element symbolElement) {
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56 logger.debug("write(Element)");
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57 symbolSetObj symbolSet = map.getSymbolset();
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58
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59 String name = symbolElement.getAttribute("name");
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60 symbolObj sym = symbolSet.getSymbolByName(name);
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61 String symType = symbolElement.getAttribute("style");
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62 String type = symbolElement.getAttribute("type");
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63 if(symType.equals("point")) {
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64 writeSimple(sym);
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65 }
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66 else if (symType.equals("arrow")) {
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67 writeArrow(sym, symbolElement);
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68 }
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69 else if (symType.equals("char")) {
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70 int exists = symbolExists(symbolElement);
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71 if(exists == -1) {
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72 String old = symbolElement.getAttribute("name");
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73 symbolElement.setAttribute(
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74 "name",
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75 old + symbolSet.getNumsymbols() + 1);
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76 writeCharacter(sym, symbolElement);
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77 }
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78 else {
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79 symbolElement.setAttribute(
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80 "name",
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81 symbolSet.getSymbol(exists).getName());
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82 }
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83 }
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84 else if (type.equals("line")) {
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85 writeHatch(sym);
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86 }
87
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87 else {
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88 return false;
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89 }
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90
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91 try {
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92 saveSymbolSet(symbolSet);
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93 }
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94 catch(Exception e) {
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95 logger.error("Error saving symbol set.");
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96 return false;
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97 }
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98
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99 return true;
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100 }
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101
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102 /**
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103 * Create a simple point symbol.
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104 *
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105 * @param symbol The symbol object.
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106 */
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107 private void writeSimple(symbolObj symbol) {
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108 logger.debug("writeSimple(symbolObj)");
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109 lineObj points = new lineObj();
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110 points.add(new pointObj(1,1,0));
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111 symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_ELLIPSE.swigValue());
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112 symbol.setPoints(points);
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113 symbol.setFilled(1);
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114 }
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115
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116 /**
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117 * Create an arrow symbol.
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118 *
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119 * @param symbol The symbol object.
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120 * @param symbolElement DOM element containing symbol attributes.
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121 */
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122 private void writeArrow(symbolObj symbol, Element symbolElement) {
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123 logger.debug("writeArrow(symbolObj, Element)");
145
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124 double len = 0;
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125 double width = 1;
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126 try {
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127 len =
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128 Double.parseDouble(symbolElement.getAttribute("length"));
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129 width =
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130 Double.parseDouble(symbolElement.getAttribute("width"));
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131 }
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132 catch(NumberFormatException nfe) {
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133 logger.warn ("Error setting arrow symbol.");
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134 return;
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135 }
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136 double ratio = len/width;
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137 lineObj points = new lineObj();
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138
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diff changeset
139 points.add(new pointObj(0, 0, 0));
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140 points.add(new pointObj((1*ratio), 0.5, 0));
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141 points.add(new pointObj(0, 1, 0));
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142 points.add(new pointObj(0, 0, 0));
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diff changeset
143 symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_VECTOR.swigValue());
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diff changeset
144 symbol.setPoints(points);
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diff changeset
145 symbol.setFilled(1);
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diff changeset
146 }
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147
181
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148 /**
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149 * Create a character marker symbol.
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150 *
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151 * @param symbol The symbol object.
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152 * @param symbolElement DOM element containing symbol attributes.
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153 */
87
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154 private void writeCharacter(symbolObj symbol, Element symbolElement) {
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155 logger.debug("writeCharacter(symbolObj, Element)");
93
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diff changeset
156 String font = symbolElement.getAttribute("font");
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157 //Remove all blank character to match the mapserver fonts.txt.
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158 font = font.replaceAll(" ", "");
192
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159 fontSetObj fso = this.map.getFontset();
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raimund renkert <raimund.renkert@intevation.de>
parents: 184
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160 hashTableObj fonts = fso.getFonts();
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raimund renkert <raimund.renkert@intevation.de>
parents: 184
diff changeset
161 String mapFont = fonts.get(font,"");
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raimund renkert <raimund.renkert@intevation.de>
parents: 184
diff changeset
162 if (mapFont == null || mapFont.equals("")) {
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parents: 184
diff changeset
163 logger.warn(
0dc34dcdaedc Lookup symbol font in fontset.
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parents: 184
diff changeset
164 "Could not find font " + font + " in font set. " +
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diff changeset
165 "Setting FreeSans as symbol font." +
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166 "Please add " + font + " to fonts.txt and replace the alias " +
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167 "in symbol \"" + symbolElement.getAttribute("name") + "\".");
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diff changeset
168 font = "FreeSans";
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169 }
141
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170 symbol.setName(symbolElement.getAttribute("name"));
93
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171 symbol.setFont(font);
87
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172 symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_TRUETYPE.swigValue());
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173 symbol.setAntialias(1);
93
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diff changeset
174 symbol.setCharacter("&#" + symbolElement.getAttribute("char") + ";");
87
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175 }
7d4cf2db43f1 Added new writer classes to be flexible in creating mapfiles.
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176
181
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177 /**
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178 * Create a hatch symbol for polygon fill.
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179 *
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180 * @param symbol The symbol object.
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diff changeset
181 */
97
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parents: 96
diff changeset
182 private void writeHatch(symbolObj symbol) {
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diff changeset
183 logger.debug("writeHatch(symbolObj)");
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parents: 96
diff changeset
184 symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_HATCH.swigValue());
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diff changeset
185 }
18e4f143896b Added polygon writer.
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diff changeset
186
181
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diff changeset
187 /**
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188 * Determine whether this writer can create the symbol.
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189 *
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diff changeset
190 * @param type The symbol type.
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diff changeset
191 */
87
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192 public boolean canWrite(String type) {
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193 if (type.equals("point") ||
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194 type.equals("arrow") ||
97
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diff changeset
195 type.equals("char") ||
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diff changeset
196 type.equals("line")) {
87
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197 return true;
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198 }
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199 else {
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200 return false;
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201 }
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202 }
90
82a1f39214fd Added method to save the symbolset.
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parents: 87
diff changeset
203
181
0bde090506f9 Added comments.
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parents: 176
diff changeset
204 /**
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205 * Save the symbol set.
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parents: 176
diff changeset
206 *
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diff changeset
207 * @param symbols The symbol set object.
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208 */
184
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parents: 181
diff changeset
209 public void saveSymbolSet(symbolSetObj symbols)
90
82a1f39214fd Added method to save the symbolset.
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diff changeset
210 throws Exception {
93
3993b5adf67c Write the character symbol correctly to the mapfile and the symbolset.
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parents: 90
diff changeset
211 String path = this.map.getMappath();
184
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parents: 181
diff changeset
212 String filename = path.substring(path.lastIndexOf(File.separator) + 1,
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parents: 181
diff changeset
213 path.lastIndexOf("."));
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parents: 181
diff changeset
214 String symbolPath = filename + "-symbols.sym";
90
82a1f39214fd Added method to save the symbolset.
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parents: 87
diff changeset
215 if(path.equals("")) {
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parents: 87
diff changeset
216 return;
82a1f39214fd Added method to save the symbolset.
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parents: 87
diff changeset
217 }
174
707f13cfba74 Improved the commandline arguments and save the mapfile in the correct directory.
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parents: 145
diff changeset
218
707f13cfba74 Improved the commandline arguments and save the mapfile in the correct directory.
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parents: 145
diff changeset
219 if (path.endsWith(".map")) {
707f13cfba74 Improved the commandline arguments and save the mapfile in the correct directory.
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parents: 145
diff changeset
220 path = path.substring(0, path.lastIndexOf(File.separator) + 1);
175
f11d13940626 Handle symbol set and font set paths.
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parents: 174
diff changeset
221 path += symbolPath;
174
707f13cfba74 Improved the commandline arguments and save the mapfile in the correct directory.
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parents: 145
diff changeset
222 }
93
3993b5adf67c Write the character symbol correctly to the mapfile and the symbolset.
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parents: 90
diff changeset
223 else {
175
f11d13940626 Handle symbol set and font set paths.
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parents: 174
diff changeset
224 path += symbolPath;
90
82a1f39214fd Added method to save the symbolset.
Raimund Renkert <rrenkert@intevation.de>
parents: 87
diff changeset
225 }
175
f11d13940626 Handle symbol set and font set paths.
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parents: 174
diff changeset
226 path = path.replaceAll("\\\\", "/");
90
82a1f39214fd Added method to save the symbolset.
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parents: 87
diff changeset
227 symbols.save(path);
184
c79c3c6fc99a Always save a symbol set, use the mapfile name as prefix for the symbol set and
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parents: 181
diff changeset
228 this.map.setSymbolSet(path);
90
82a1f39214fd Added method to save the symbolset.
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parents: 87
diff changeset
229 }
141
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
230
181
0bde090506f9 Added comments.
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parents: 176
diff changeset
231 /**
0bde090506f9 Added comments.
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parents: 176
diff changeset
232 * Determine whether the symbol exists.
0bde090506f9 Added comments.
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parents: 176
diff changeset
233 *
0bde090506f9 Added comments.
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parents: 176
diff changeset
234 * @param elem DOM element containing the symbol attributes.
0bde090506f9 Added comments.
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parents: 176
diff changeset
235 *
0bde090506f9 Added comments.
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parents: 176
diff changeset
236 * @return Returns the symbol index if the symbol exists, else returns -1.
0bde090506f9 Added comments.
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parents: 176
diff changeset
237 */
141
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
238 private int symbolExists (Element elem) {
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
239 symbolSetObj symbolSet = map.getSymbolset();
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
240 for (int i = 0; i < symbolSet.getNumsymbols(); i++) {
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
241 symbolObj sym = symbolSet.getSymbol(i);
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
242 int stype = sym.getType();
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
243 String etype = elem.getAttribute("style");
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
244 if(stype == MS_SYMBOL_TYPE.MS_SYMBOL_ELLIPSE.swigValue () &&
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
245 etype.equals("point")) {
145
b2c5a66022f1 Exception handling for number conversions in writer modules.
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parents: 141
diff changeset
246 return i;
141
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
247 }
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
248 else if(stype == MS_SYMBOL_TYPE.MS_SYMBOL_VECTOR.swigValue () &&
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
249 etype.equals("arrow")) {
145
b2c5a66022f1 Exception handling for number conversions in writer modules.
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parents: 141
diff changeset
250 return i;
141
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
251 }
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
252 else if(stype == MS_SYMBOL_TYPE.MS_SYMBOL_TRUETYPE.swigValue () &&
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
253 etype.equals("char")) {
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
254 String font = elem.getAttribute("font");
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
255 font = font.replaceAll(" ", "");
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
256 String c = elem.getAttribute("char");
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
257 c = "&#" + c + ";";
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
258 if (font.equals(sym.getFont()) &&
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
259 c.equals(sym.getCharacter())) {
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
260 return i;
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
261 }
8f30f7e802d6 Manage symbol names and symbol comparison.
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parents: 120
diff changeset
262
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
263 }
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
264 else if(stype == MS_SYMBOL_TYPE.MS_SYMBOL_HATCH.swigValue () &&
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
265 etype.equals("hatch")) {
145
b2c5a66022f1 Exception handling for number conversions in writer modules.
Raimund Renkert <rrenkert@intevation.de>
parents: 141
diff changeset
266 return i;
141
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
267 }
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
268 }
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
269 return -1;
8f30f7e802d6 Manage symbol names and symbol comparison.
vc11884admin@VC11884.win.bsh.de
parents: 120
diff changeset
270 }
87
7d4cf2db43f1 Added new writer classes to be flexible in creating mapfiles.
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parents:
diff changeset
271 }
7d4cf2db43f1 Added new writer classes to be flexible in creating mapfiles.
Raimund Renkert <rrenkert@intevation.de>
parents:
diff changeset
272 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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