Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/TimeSeriesVectorChart.java @ 1109:2b4d197a538c

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Fixed the time range validation - introduced an epsilon of one second for valid time ranges (issue286). gnv-artifacts/trunk@1240 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 29 Jun 2010 09:07:26 +0000
parents 70653c29fc1d
children f953c9a559d8
rev   line source
1040
70653c29fc1d Finished vector support for timeseriespoints (Issue27).
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1 package de.intevation.gnv.chart;
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2
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3 import de.intevation.gnv.geobackend.base.Result;
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4 import de.intevation.gnv.geobackend.base.ResultDescriptor;
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5
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6 import java.util.Collection;
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7 import java.util.Date;
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8 import java.util.Iterator;
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9 import java.util.Locale;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import org.jfree.chart.ChartTheme;
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14 import org.jfree.chart.plot.XYPlot;
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15
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16 import org.jfree.data.time.Minute;
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17 import org.jfree.data.time.TimeSeries;
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18 import org.jfree.data.time.TimeSeriesCollection;
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19
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20
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21 /**
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22 * This class is used to create timeseries charts that contain components of a
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23 * vector parameter. The domain axis contains multiple date/time objects.
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24 *
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25 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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26 */
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27 public class TimeSeriesVectorChart extends TimeSeriesChart {
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28
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29 private static Logger logger =Logger.getLogger(TimeSeriesVectorChart.class);
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30
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31 public TimeSeriesVectorChart(
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32 ChartLabels labels,
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33 ChartTheme theme,
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34 Collection parameters,
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35 Collection measurements,
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36 Collection dates,
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37 Collection result,
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38 Collection timeGaps,
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39 Locale locale,
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40 boolean linesVisible,
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41 boolean shapesVisible
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42 ) {
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43 super(labels, theme, parameters, measurements, dates, result,
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44 timeGaps, locale, linesVisible, shapesVisible);
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45 }
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46
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47
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48 @Override
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49 protected void initData() {
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50 logger.debug("init data for timeseries vector chart");
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51
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52 Iterator iter = resultSet.iterator();
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53 Result row = null;
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54 String seriesName = null;
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55 TimeSeries series = null;
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56
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57 int idx = 0;
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58 int startPos = 0;
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59 int endPos = 0;
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60 Date startDate = null;
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61 Date endDate = null;
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62
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63 ResultDescriptor rd = null;
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64 int idxSeries = -1;
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65 int idxX = -1;
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66 int idxY = -1;
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67
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68 Result[] results =
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69 (Result[]) resultSet.toArray(new Result[resultSet.size()]);
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70
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71 while (iter.hasNext()) {
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72 row = (Result) iter.next();
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73
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74 if (rd == null) {
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75 rd = row.getResultDescriptor();
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76 idxSeries = rd.getColumnIndex("SERIES");
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77 idxX = rd.getColumnIndex("XORDINATE");
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78 idxY = rd.getColumnIndex("YORDINATE");
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79 }
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80
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81 // add current data to plot and prepare for next one
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82 if (!row.getString(idxSeries).equals(seriesName)) {
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83 logger.debug("prepare data/plot for next dataset");
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84
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85 if(series != null) {
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86 // add gaps before adding series to chart
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87 startDate = results[startPos].getDate(idxX);
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88 endDate = results[endPos-1].getDate(idxX);
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89 addGaps(results,series,startDate,endDate,startPos,endPos);
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90 addSeries(series, seriesName, idx);
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91
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92 startPos = endPos + 1;
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93 }
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94
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95 // prepare variables for next plot
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96 seriesName = row.getString(idxSeries);
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97
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98 logger.debug("next dataset is '" + seriesName + "'");
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99 series = new TimeSeries(seriesName, Minute.class);
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100 }
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101
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102 addValue(row, series);
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103 storeMaxRange(ranges, row.getDouble(idxY), seriesName);
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104 endPos++;
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105 }
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106
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107 if (startPos < results.length && endPos-1 < results.length) {
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108 // add the last dataset if existing to plot and prepare its axis
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109 startDate = results[startPos].getDate(idxX);
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110 endDate = results[endPos-1].getDate(idxX);
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111 addGaps(results, series, startDate, endDate, startPos, endPos);
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112 addSeries(series, seriesName, idx);
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113 }
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114
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115 addDatasets();
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116 }
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117
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118
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119 @Override
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120 protected void addDatasets() {
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121 XYPlot plot = chart.getXYPlot();
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122 int idx = 0;
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123
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124 TimeSeriesCollection tsc = null;
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125 Iterator iter = datasets.keySet().iterator();
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126
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127 while (iter.hasNext()) {
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128 String key = (String) iter.next();
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129 tsc = (TimeSeriesCollection)datasets.get(key);
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130 plot.setDataset(idx, tsc );
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131 logger.debug("Added " + key + " parameter to plot.");
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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132 prepareAxis(key, idx);
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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133 adjustRenderer(
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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134 idx++,
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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135 tsc.getSeriesCount(),
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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136 linesVisible,
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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137 shapesVisible
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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138 );
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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139 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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140 }
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Ingo Weinzierl <ingo.weinzierl@intevation.de>
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141 }
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142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org