Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/TimeSeriesVectorChart.java @ 1145:dfe1ac687c7f tip

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added tags
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:16:15 +0200
parents f953c9a559d8
children
rev   line source
1115
f953c9a559d8 Added license file and license headers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1040
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
f953c9a559d8 Added license file and license headers.
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
f953c9a559d8 Added license file and license headers.
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5 * Read the file LGPL.txt coming with the software for details
f953c9a559d8 Added license file and license headers.
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
1040
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9 package de.intevation.gnv.chart;
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10
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11 import de.intevation.gnv.geobackend.base.Result;
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12 import de.intevation.gnv.geobackend.base.ResultDescriptor;
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13
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14 import java.util.Collection;
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15 import java.util.Date;
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16 import java.util.Iterator;
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17 import java.util.Locale;
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18
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19 import org.apache.log4j.Logger;
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20
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21 import org.jfree.chart.ChartTheme;
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22 import org.jfree.chart.plot.XYPlot;
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23
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24 import org.jfree.data.time.Minute;
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25 import org.jfree.data.time.TimeSeries;
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26 import org.jfree.data.time.TimeSeriesCollection;
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27
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28
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29 /**
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30 * This class is used to create timeseries charts that contain components of a
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31 * vector parameter. The domain axis contains multiple date/time objects.
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32 *
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33 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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34 */
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35 public class TimeSeriesVectorChart extends TimeSeriesChart {
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36
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37 private static Logger logger =Logger.getLogger(TimeSeriesVectorChart.class);
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38
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39 public TimeSeriesVectorChart(
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40 ChartLabels labels,
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41 ChartTheme theme,
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42 Collection parameters,
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43 Collection measurements,
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44 Collection dates,
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45 Collection result,
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46 Collection timeGaps,
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47 Locale locale,
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48 boolean linesVisible,
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49 boolean shapesVisible
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50 ) {
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51 super(labels, theme, parameters, measurements, dates, result,
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52 timeGaps, locale, linesVisible, shapesVisible);
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53 }
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54
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55
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56 @Override
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57 protected void initData() {
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58 logger.debug("init data for timeseries vector chart");
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59
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60 Iterator iter = resultSet.iterator();
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61 Result row = null;
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62 String seriesName = null;
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63 TimeSeries series = null;
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64
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65 int idx = 0;
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66 int startPos = 0;
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67 int endPos = 0;
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68 Date startDate = null;
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69 Date endDate = null;
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70
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71 ResultDescriptor rd = null;
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72 int idxSeries = -1;
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73 int idxX = -1;
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74 int idxY = -1;
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75
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76 Result[] results =
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77 (Result[]) resultSet.toArray(new Result[resultSet.size()]);
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78
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79 while (iter.hasNext()) {
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80 row = (Result) iter.next();
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81
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82 if (rd == null) {
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83 rd = row.getResultDescriptor();
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84 idxSeries = rd.getColumnIndex("SERIES");
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85 idxX = rd.getColumnIndex("XORDINATE");
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86 idxY = rd.getColumnIndex("YORDINATE");
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87 }
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88
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89 // add current data to plot and prepare for next one
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90 if (!row.getString(idxSeries).equals(seriesName)) {
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91 logger.debug("prepare data/plot for next dataset");
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92
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93 if(series != null) {
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94 // add gaps before adding series to chart
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95 startDate = results[startPos].getDate(idxX);
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96 endDate = results[endPos-1].getDate(idxX);
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97 addGaps(results,series,startDate,endDate,startPos,endPos);
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98 addSeries(series, seriesName, idx);
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99
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100 startPos = endPos + 1;
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101 }
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102
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103 // prepare variables for next plot
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104 seriesName = row.getString(idxSeries);
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105
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106 logger.debug("next dataset is '" + seriesName + "'");
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107 series = new TimeSeries(seriesName, Minute.class);
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108 }
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109
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110 addValue(row, series);
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111 storeMaxRange(ranges, row.getDouble(idxY), seriesName);
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112 endPos++;
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113 }
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114
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115 if (startPos < results.length && endPos-1 < results.length) {
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116 // add the last dataset if existing to plot and prepare its axis
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117 startDate = results[startPos].getDate(idxX);
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118 endDate = results[endPos-1].getDate(idxX);
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119 addGaps(results, series, startDate, endDate, startPos, endPos);
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120 addSeries(series, seriesName, idx);
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121 }
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122
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123 addDatasets();
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124 }
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125
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126
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127 @Override
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128 protected void addDatasets() {
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129 XYPlot plot = chart.getXYPlot();
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130 int idx = 0;
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131
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132 TimeSeriesCollection tsc = null;
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133 Iterator iter = datasets.keySet().iterator();
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134
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135 while (iter.hasNext()) {
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136 String key = (String) iter.next();
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137 tsc = (TimeSeriesCollection)datasets.get(key);
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138 plot.setDataset(idx, tsc );
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139 logger.debug("Added " + key + " parameter to plot.");
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140 prepareAxis(key, idx);
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141 adjustRenderer(
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142 idx++,
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143 tsc.getSeriesCount(),
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144 linesVisible,
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145 shapesVisible
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146 );
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147 }
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148 }
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149 }
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150 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org