Mercurial > mxd2map

annotate src/java/de/intevation/mxd/writer/SymbolWriter.java @ 89:475ee3e4bc8b

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Added "type" as XML attribute to symbols.
author Raimund Renkert <rrenkert@intevation.de>
date Tue, 31 May 2011 18:33:54 +0200
parents 7d4cf2db43f1
children 82a1f39214fd
rev   line source
87
7d4cf2db43f1 Added new writer classes to be flexible in creating mapfiles.
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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.MS_SYMBOL_TYPE;
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15
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16
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17 /**
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18 * The interface to the mapfile writer.
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19 *
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20 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
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21 */
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22 public class SymbolWriter {
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23
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24 /**
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25 * The Logger.
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26 */
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27 private static final Logger logger = Logger.getLogger(SymbolWriter.class);
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28
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29 private mapObj map;
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30 private classObj cl;
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31 private styleObj style;
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32
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33 public SymbolWriter (mapObj map, classObj cl) {
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34 this.map = map;
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35 this.cl = cl;
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36 this.style = new styleObj(cl);
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37 }
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38
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39 /**
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40 * Write the content.
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41 */
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42 public boolean write(Element symbolElement)
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43 throws Exception {
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44 logger.debug("write(Element)");
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45 symbolSetObj symbolSet = map.getSymbolset();
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46
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47 String name = symbolElement.getAttribute("name");
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48 symbolObj sym = symbolSet.getSymbolByName(name);
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49
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50 String symType = symbolElement.getAttribute("style");
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51 if(symType.equals("point")) {
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52 writeSimple(sym);
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53 }
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54 else if (symType.equals("arrow")) {
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55 writeArrow(sym, symbolElement);
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56 }
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57 else if (symType.equals("char")) {
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58 //TODO Does not work at all... waiting for fix.
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59 writeCharacter(sym, symbolElement);
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60 }
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61 else {
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62 return false;
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63 }
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64 return true;
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65 }
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66
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67 private void writeSimple(symbolObj symbol) {
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68 logger.debug("writeSimple(symbolObj)");
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69 lineObj points = new lineObj();
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70 points.add(new pointObj(1,1,0));
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71 symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_ELLIPSE.swigValue());
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72 symbol.setPoints(points);
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73 symbol.setFilled(1);
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74 }
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75
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76 private void writeArrow(symbolObj symbol, Element symbolElement) {
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77 logger.debug("writeArrow(symbolObj, Element)");
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78 double len = Double.parseDouble(symbolElement.getAttribute("length"));
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79 double width = Double.parseDouble(symbolElement.getAttribute("width"));
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80 double ratio = len/width;
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81 lineObj points = new lineObj();
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82
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83 points.add(new pointObj(0, 0, 0));
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84 points.add(new pointObj((1*ratio), 0.5, 0));
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85 points.add(new pointObj(0, 1, 0));
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86 points.add(new pointObj(0, 0, 0));
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87 symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_VECTOR.swigValue());
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88 symbol.setPoints(points);
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89 symbol.setFilled(1);
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90 }
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91
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92 private void writeCharacter(symbolObj symbol, Element symbolElement) {
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93 logger.debug("writeCharacter(symbolObj, Element)");
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94 //TODO Write the symbol correctly. See Issue 3885 on trac.osgeo.org
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95 symbol.setFont(symbolElement.getAttribute("font"));
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96 symbol.setType(MS_SYMBOL_TYPE.MS_SYMBOL_TRUETYPE.swigValue());
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97 symbol.setAntialias(1);
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98 symbol.setCharacter("#&" + symbolElement.getAttribute("char") + ";");
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99 }
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100
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101 public boolean canWrite(String type) {
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102 if (type.equals("point") ||
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103 type.equals("arrow") ||
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104 type.equals("char")) {
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105 return true;
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106 }
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107 else {
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108 return false;
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109 }
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110 }
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111 }
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112 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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