Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalProfileVectorChart.java @ 1085:ec512e7992c6

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Improved data initialization and axis range calculation in vertical profiles (scalar and vector). gnv-artifacts/trunk@1187 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 09 Jun 2010 17:11:54 +0000
parents 9bb1979aabbe
children f953c9a559d8
rev   line source
1071
9bb1979aabbe Added a new output state and chart type for vertical profiles using vector data.
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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.Iterator;
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8 import java.util.Locale;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import org.jfree.chart.ChartTheme;
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13
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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.xy.XYSeries;
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17 import org.jfree.data.xy.XYSeriesCollection;
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18
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19 /**
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20 * This class is used to create xy charts of vertical profiles.
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21 *
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22 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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23 */
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24 public class VerticalProfileVectorChart
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25 extends VerticalProfileChart
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26 {
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27 private static Logger logger =
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28 Logger.getLogger(VerticalProfileVectorChart.class);
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29
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30 public VerticalProfileVectorChart(
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31 ChartLabels labels,
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32 ChartTheme theme,
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33 Collection parameters,
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34 Collection measurements,
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35 Collection dates,
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36 Collection result,
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37 Collection timeGaps,
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38 Locale locale,
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39 boolean linesVisible,
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40 boolean shapesVisible
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41 ) {
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42 super(labels, theme, parameters, measurements, dates, result,
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43 timeGaps, locale, linesVisible, shapesVisible);
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44 }
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45
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46
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47 @Override
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48 protected void initData() {
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49 logger.debug("init data for verticalprofile chart with vector data.");
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50
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51 int items = resultSet.size();
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52 logger.debug("Found " + items + " items for this chart.");
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53
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54 Iterator iter = resultSet.iterator();
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55 Result row = null;
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56 String seriesName = null;
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57 XYSeries series = null;
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58
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59 int idx = 0;
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60 int startPos = 0;
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61 int endPos = 0;
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62
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63 double startValue = 0;
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64 double endValue = 0;
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65
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66 ResultDescriptor rd = null;
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67 int idxSeries = -1;
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68 int idxX = -1;
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69 int idxY = -1;
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70
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71 Result[] results =
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72 (Result[]) resultSet.toArray(new Result[resultSet.size()]);
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73
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74 while (iter.hasNext()) {
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75 row = (Result) iter.next();
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76
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77 if (rd == null) {
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78 rd = row.getResultDescriptor();
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79 idxSeries = rd.getColumnIndex("SERIES");
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80 idxX = rd.getColumnIndex("XORDINATE");
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81 idxY = rd.getColumnIndex("YORDINATE");
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82 }
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83
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84 if (!row.getString(idxSeries).equals(seriesName)) {
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85 logger.debug("prepare data/plot for next dataset.");
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86
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87 if (series != null) {
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88 if (startPos >= 0 && endPos < items) {
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89 gapDetection(results, series, startPos, endPos);
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90 }
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91
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92 addSeries(series, seriesName, idx);
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93
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94 startPos = endPos + 1;
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95 }
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96
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97 seriesName = row.getString(idxSeries);
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98
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99 logger.debug("next data is '" + seriesName + "'");
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100 series = new XYSeries(seriesName);
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101 }
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102
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103 addValue(row, series);
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104 Object x = getValue(row);
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105 Double y = row.getDouble(idxY);
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106 if (x != null && y != null) {
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107 storeMaxRange(ranges, y, seriesName);
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108 storeMaxValue(values, x, seriesName);
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109 }
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110
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111 endPos++;
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112 }
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113
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114 if (results.length == 0)
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115 return;
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116
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117 if (startPos >= 0 && endPos < items) {
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118 gapDetection(results, series, startPos, endPos);
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119 }
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120 addSeries(series, seriesName, idx);
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121
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122 addDatasets();
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123 }
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124
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125
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126 @Override
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127 protected void addDatasets() {
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128 XYPlot plot = chart.getXYPlot();
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129 int idx = 0;
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130
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131 XYSeriesCollection sc = null;
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132 Iterator iter = datasets.keySet().iterator();
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133
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134 while (iter.hasNext()) {
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135 String key = (String) iter.next();
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136 sc = (XYSeriesCollection)datasets.get(key);
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137 plot.setDataset(idx, sc );
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138 logger.debug("Added " + key + " parameter to plot.");
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139 prepareAxis(key, idx);
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140 adjustRenderer(
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141 idx++,
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142 sc.getSeriesCount(),
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143 linesVisible,
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144 shapesVisible
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145 );
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146 }
1085
ec512e7992c6 Improved data initialization and axis range calculation in vertical profiles (scalar and vector).
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147
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148 prepareRangeAxis(null, -1);
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149 }
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150 }
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151 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org