Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalProfileChart.java @ 340:07a64cfafdf1

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Added gap detection in horizontal and vertical profile charts. Distinguish between meshes and other data sources. gnv-artifacts/trunk@406 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 09 Dec 2009 10:22:20 +0000
parents e964a3d8f7bc
children 2413273f1c13
rev   line source
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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.HashMap;
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5 import java.util.Iterator;
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6 import java.util.Locale;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import org.jfree.chart.ChartTheme;
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11 import org.jfree.chart.axis.Axis;
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12 import org.jfree.chart.plot.XYPlot;
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13 import org.jfree.chart.plot.PlotOrientation;
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14 import org.jfree.data.xy.XYSeries;
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15 import org.jfree.data.general.Series;
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16 import org.jfree.data.xy.XYSeriesCollection;
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18 import de.intevation.gnv.geobackend.base.Result;
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e964a3d8f7bc Some Refactoring work done.
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19 import de.intevation.gnv.state.describedata.KeyValueDescibeData;
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20
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21
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22 /**
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23 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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24 */
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25 public class VerticalProfileChart
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26 extends AbstractXYLineChart
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27 {
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28 private static Logger log = Logger.getLogger(VerticalProfileChart.class);
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29
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30 protected final double PERCENTAGE = 5.0;
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31 protected final double GAP_MAX_LEVEL = Math.sqrt(2.0);
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32 protected final int GAP_MAX_VALUES = 60;
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33
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34
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35 public VerticalProfileChart(
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36 ChartLabels labels,
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37 ChartTheme theme,
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38 Collection parameters,
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39 Collection measurements,
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40 Collection dates,
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41 Collection result,
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42 Collection timeGaps,
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43 Locale locale,
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44 boolean linesVisible,
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45 boolean shapesVisible
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46 ) {
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47 this.labels = labels;
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48 this.theme = theme;
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49 this.parameters = parameters;
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50 this.measurements = measurements;
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51 this.dates = dates;
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52 this.resultSet = result;
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53 this.timeGaps = timeGaps;
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54 this.locale = locale;
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55 this.PLOT_ORIENTATION = PlotOrientation.HORIZONTAL;
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56 this.linesVisible = linesVisible;
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57 this.shapesVisible = shapesVisible;
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58 this.datasets = new HashMap();
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59 }
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61
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62 protected void initData() {
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63 log.debug("init data for VerticalProfileChart");
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64
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65 String breakPoint1 = null;
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66 String breakPoint2 = null;
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67 String breakPoint3 = null;
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68
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69 Iterator iter = resultSet.iterator();
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70 Result row = null;
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71 String seriesName = null;
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72 XYSeries series = null;
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73
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74 int idx = 0;
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75 int startPos = 0;
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76 int endPos = 0;
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77 double startValue = 0;
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78 double endValue = 0;
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79
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80 Result[] results =
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81 (Result[]) resultSet.toArray(new Result[resultSet.size()]);
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82
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83 while (iter.hasNext()) {
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84 row = (Result) iter.next();
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85
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86 // add current data to plot and prepare for next one
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87 if (!row.getString("GROUP1").equals(breakPoint1) ||
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88 !row.getString("GROUP2").equals(breakPoint2) ||
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89 !row.getString("GROUP3").equals(breakPoint3)
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90 ) {
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91 log.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 gapDetection(results, series, startPos, endPos);
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95 addSeries(series, seriesName, idx);
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97 startPos = endPos +1;
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98 }
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99
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100 // prepare variables for next plot
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101 breakPoint1 = row.getString("GROUP1");
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102 breakPoint2 = row.getString("GROUP2");
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103 breakPoint3 = row.getString("GROUP3");
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104
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105 seriesName = createSeriesName(
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106 breakPoint1,
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107 breakPoint2,
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108 breakPoint3
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109 );
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110
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111 log.debug("next dataset is '" + seriesName + "'");
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112 series = new XYSeries(seriesName);
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113 }
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114
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115 addValue(row, series);
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116 endPos++;
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117 }
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118
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119 if (results.length == 0)
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120 return;
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121
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122 gapDetection(results, series, startPos, endPos);
334
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123 addSeries(series, seriesName, idx);
310
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124
334
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125 addDatasets();
298
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126 }
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127
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128
340
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129 protected void gapDetection(
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130 Result[] results,
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131 Series series,
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132 int startPos,
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133 int endPos
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134 ) {
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135 double startValue = results[startPos].getDouble("XORDINATE");
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136 double endValue = results[endPos-1].getDouble("XORDINATE");
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137 if (results[0].getInteger("DATAID") == 2)
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138 addGapsOnGrid(results, series, startPos, endPos);
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139 else
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140 addGaps(results, series, startValue, endValue, startPos, endPos);
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141 }
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142
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143
298
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144 protected void addValue(Result row, Series series) {
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145 ((XYSeries) series).add(
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146 row.getDouble("XORDINATE"),
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147 row.getDouble("YORDINATE")
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148 );
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149 }
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150
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151
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152 protected void addSeries(Series series, String label, int idx) {
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153 log.debug("add series (" + label + ")to chart");
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154
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155 if (series == null) {
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156 log.warn("no data to add");
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157 return;
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158 }
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159
334
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160 XYSeriesCollection xysc = null;
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161 String parameter = findParameter(label);
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162
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163 if (datasets.containsKey(parameter))
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164 xysc = (XYSeriesCollection) datasets.get(parameter);
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165 else
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166 xysc = new XYSeriesCollection();
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167
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168 xysc.addSeries((XYSeries) series);
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169 datasets.put(parameter, xysc);
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170 }
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171
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172
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173 protected void addDatasets() {
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174 Iterator iter = parameters.iterator();
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175 XYPlot plot = chart.getXYPlot();
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176 int idx = 0;
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177
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178 XYSeriesCollection xysc = null;
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179 KeyValueDescibeData data = null;
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180 String key = null;
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181 while (iter.hasNext()) {
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182 data = (KeyValueDescibeData) iter.next();
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183 key = data.getValue();
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184
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185 if (datasets.containsKey(key)) {
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186 xysc = (XYSeriesCollection)datasets.get(key);
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187 plot.setDataset(idx, xysc );
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188 log.debug("Added " + key + " parameter to plot.");
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189 prepareAxis(key, idx);
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190 adjustRenderer(
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191 idx++,
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192 xysc.getSeriesCount(),
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193 linesVisible,
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194 shapesVisible
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195 );
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196 }
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197 }
298
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198 }
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199
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200
315
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201 protected void localizeDomainAxis(Axis axis, Locale locale) {
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202 // call localizeRangeAxis from superclass which formats NumberAxis
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203 super.localizeRangeAxis(axis, locale);
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204 }
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205
63f8b3fb7d9a Localization of chart axis with locale which fits best to server and browser settings.
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206
298
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207 protected String createSeriesName(
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208 String breakPoint1,
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209 String breakPoint2,
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210 String breakPoint3
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211 ) {
80f7c5dc09c6 Implementation of classes for creating timeseries, verticalprofile and horizontalprofile charts.
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212 log.debug("create seriesname of verticalprofile chart");
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213 return findValueTitle(parameters, breakPoint1) +
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214 " " +
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215 findValueTitle(measurements, breakPoint2) +
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216 "m";
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217 }
340
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218
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219
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220 protected void addGapsOnGrid(
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221 Result[] results,
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222 Series series,
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223 int startPos,
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diff changeset
224 int endPos
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225 ) {
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diff changeset
226 String axis = getDependendAxisName(
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diff changeset
227 results[startPos],
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228 results[startPos+1]
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229 );
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230 double range = 0;
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231 int last = 0;
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232 int current = 0;
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233
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diff changeset
234 for (int i = startPos+1; i < endPos; i++) {
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235 last = results[i-1].getInteger(axis);
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236 current = results[i].getInteger(axis);
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237
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238 boolean detected = gridDetection(last, current);
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239
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240 if (detected) {
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241 double xOld = results[i-1].getDouble("XORDINATE");
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242 double xNow = results[i].getDouble("XORDINATE");
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243 log.debug("Gap detected on grid between "+ xOld +" and "+ xNow);
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244 ((XYSeries) series).add(xOld+0.0001, null);
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245 }
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246 }
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247 }
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248
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249
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250 protected void addGaps(
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251 Result[] results,
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252 Series series,
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253 double startValue,
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254 double endValue,
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255 int startPos,
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256 int endPos
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257 ) {
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258
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259 double last = 0;
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260 double current = 0;
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261 int num = results.length;
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262
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263 for (int i = startPos+1; i < endPos; i++) {
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264 boolean detected = false;
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265
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266 last = results[i-1].getDouble("YORDINATE");
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267 current = results[i].getDouble("YORDINATE");
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268
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269 // gap detection for more than GAP_MAX_VALUES values
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270 if (num > GAP_MAX_VALUES)
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271 detected = simpleDetection(startValue, endValue, last, current);
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272 // gap detection for less than GAP_MAX_VALUES values
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273 else
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274 detected = specialDetection(
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275 startValue,
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276 endValue,
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277 last,
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278 current,
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279 num
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280 );
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281
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282 if (detected) {
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283 log.info("Gap between " + last + " and " + current);
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284 ((XYSeries) series).add((last+current)/2, null);
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285 }
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286 }
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287 }
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288
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289
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290 protected boolean simpleDetection(
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291 double start,
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292 double end,
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293 double last,
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294 double current
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295 ) {
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296 double delta = Math.abs(end - start);
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297 double smallDelta = Math.abs(current - last);
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298
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299 return (smallDelta > delta / 100 * PERCENTAGE);
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300 }
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301
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302
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303 protected boolean specialDetection(
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304 double start,
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305 double end,
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306 double last,
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307 double current,
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308 int count
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309 ) {
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310 double delta = Math.abs(end - start);
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311 double smallDelta = Math.abs(current - last);
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312
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313 return (smallDelta > (3.0 / (count - 1) * delta));
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314 }
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315
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316
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317 protected boolean gridDetection(double last, double current) {
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318 return (Math.abs(current - last) > GAP_MAX_LEVEL);
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319 }
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320
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321
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322 protected String getDependendAxisName(Result first, Result second) {
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323 if (first.getInteger("IPOSITION") == second.getInteger("IPOSITION"))
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324 return "JPOSITION";
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325
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326 return "IPOSITION";
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327 }
298
80f7c5dc09c6 Implementation of classes for creating timeseries, verticalprofile and horizontalprofile charts.
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328 }
315
63f8b3fb7d9a Localization of chart axis with locale which fits best to server and browser settings.
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329 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org