Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalProfileChart.java @ 300:6a3a02e004d9

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Refactored process of chart generation. Charts will be generated via Chart-Interface from rev351 and no more via factory classes. gnv-artifacts/trunk@354 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 20 Nov 2009 13:51:14 +0000
parents 80f7c5dc09c6
children 3ea030aafe65
rev   line source
298
80f7c5dc09c6 Implementation of classes for creating timeseries, verticalprofile and horizontalprofile charts.
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1 package de.intevation.gnv.chart;
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2
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3 import java.util.Collection;
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4 import java.util.Iterator;
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5 import java.util.Locale;
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6
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7 import org.apache.log4j.Logger;
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8
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9 import org.jfree.chart.ChartTheme;
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10 import org.jfree.data.xy.XYSeries;
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11 import org.jfree.data.general.Series;
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12 import org.jfree.data.xy.XYDataset;
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13 import org.jfree.data.xy.XYSeriesCollection;
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14 import org.jfree.chart.plot.XYPlot;
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15 import org.jfree.chart.plot.PlotOrientation;
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17 import de.intevation.gnv.geobackend.base.Result;
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19
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20 /**
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21 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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22 */
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23 public class VerticalProfileChart
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24 extends AbstractXYLineChart
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25 {
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26 private static Logger log = Logger.getLogger(VerticalProfileChart.class);
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27
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29 public VerticalProfileChart(
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30 ChartLabels labels,
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31 ChartTheme theme,
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32 Collection parameters,
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33 Collection measurements,
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34 Collection result,
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35 Collection dates,
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36 Locale locale
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37 ) {
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38 this.labels = labels;
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39 this.theme = theme;
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40 this.parameters = parameters;
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41 this.measurements = measurements;
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42 this.resultSet = result;
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43 this.dates = dates;
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44 this.locale = locale;
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45 this.PLOT_ORIENTATION = PlotOrientation.HORIZONTAL;
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46 }
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47
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48
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49 protected void initData() {
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50 log.debug("init data for VerticalProfileChart");
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51
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52 String breakPoint1 = null;
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53 String breakPoint2 = null;
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54 String breakPoint3 = null;
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55
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56 Iterator iter = resultSet.iterator();
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57 Result row = null;
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58 String seriesName = null;
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59 XYSeries series = null;
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60
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61 int idx = 0;
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62
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63 while (iter.hasNext()) {
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64 row = (Result) iter.next();
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65
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66 // add current data to plot and prepare for next one
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67 if (!row.getString("GROUP1").equals(breakPoint1) ||
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68 !row.getString("GROUP2").equals(breakPoint2) ||
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69 !row.getString("GROUP3").equals(breakPoint3)
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70 ) {
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71 log.debug("prepare data/plot for next dataset");
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72
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73 if(series != null) {
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74 addSeries(series, idx);
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75 prepareAxis(((String)series.getKey()), idx++);
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76 }
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77
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78 // prepare variables for next plot
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79 breakPoint1 = row.getString("GROUP1");
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80 breakPoint2 = row.getString("GROUP2");
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81 breakPoint3 = row.getString("GROUP3");
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82
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83 seriesName = createSeriesName(
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84 breakPoint1,
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85 breakPoint2,
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86 breakPoint3
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87 );
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88
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89 log.debug("next dataset is '" + seriesName + "'");
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90 series = new XYSeries(seriesName);
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91 }
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92
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93 addValue(row, series);
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94 }
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95
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96 addSeries(series, idx);
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97 prepareAxis(((String)series.getKey()), idx++);
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98 }
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99
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100
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101 protected void addValue(Result row, Series series) {
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102 // TODO look for gaps between two values
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103 ((XYSeries) series).add(
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104 row.getDouble("XORDINATE"),
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105 row.getDouble("YORDINATE")
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106 );
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107 }
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108
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109
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110 protected void addSeries(Series series, int idx) {
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111 log.debug("add series to verticalprofile chart");
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112 XYPlot plot = chart.getXYPlot();
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113
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114 if (series == null) {
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115 log.warn("no data to add");
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116 return;
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117 }
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118
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119 XYSeriesCollection xysc = new XYSeriesCollection((XYSeries)series);
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120 plot.setDataset(idx, xysc);
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121 }
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122
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123
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124 protected String createSeriesName(
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125 String breakPoint1,
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126 String breakPoint2,
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127 String breakPoint3
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128 ) {
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129 log.debug("create seriesname of verticalprofile chart");
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130 return findValueTitle(parameters, breakPoint1) +
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131 " " +
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132 findValueTitle(measurements, breakPoint2) +
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133 "m";
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134 }
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135 }
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136 // vim:set ts=4 sw=4 si et sta sts=4 fenc=latin1 :
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