Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/exports/TimeseriesChartGenerator.java @ 2554:ee5eca3871cb
Apply legend specific settings (show/hide) in timeseries charts.
flys-artifacts/trunk@4069 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Fri, 17 Feb 2012 07:49:41 +0000 |
parents | c7b0dfa6a52c |
children | 8cd6358eb7f8 |
rev | line source |
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1 package de.intevation.flys.exports; |
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2 |
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3 import java.awt.Color; |
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4 |
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5 import java.util.ArrayList; |
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6 import java.util.HashMap; |
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7 import java.util.List; |
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8 import java.util.Map; |
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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.ChartFactory; |
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13 import org.jfree.chart.JFreeChart; |
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14 import org.jfree.chart.axis.ValueAxis; |
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15 import org.jfree.chart.plot.XYPlot; |
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16 |
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17 import org.jfree.data.Range; |
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18 import org.jfree.data.time.TimeSeriesCollection; |
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19 import org.jfree.data.general.Series; |
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20 import org.jfree.data.xy.XYDataset; |
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21 |
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22 import de.intevation.flys.jfree.Bounds; |
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23 import de.intevation.flys.jfree.DoubleBounds; |
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24 import de.intevation.flys.jfree.TimeBounds; |
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25 |
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26 |
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27 /** |
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28 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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29 */ |
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30 public abstract class TimeseriesChartGenerator extends ChartGenerator { |
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31 |
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32 |
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33 /** |
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34 * Inner class TimeseriesAxisDataset stores TimeSeriesCollection. |
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35 */ |
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36 public class TimeseriesAxisDataset implements AxisDataset { |
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37 |
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38 protected int axisSymbol; |
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39 |
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40 protected List<TimeSeriesCollection> datasets; |
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41 |
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42 protected Range range; |
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43 |
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44 protected int plotAxisIndex; |
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45 |
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46 |
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47 public TimeseriesAxisDataset(int axisSymbol) { |
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48 this.axisSymbol = axisSymbol; |
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49 this.datasets = new ArrayList<TimeSeriesCollection>(); |
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50 } |
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51 |
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52 |
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53 @Override |
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54 public void addDataset(XYDataset dataset) { |
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55 if (!(dataset instanceof TimeSeriesCollection)) { |
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56 logger.warn("Skip non TimeSeriesCollection dataset."); |
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57 return; |
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58 } |
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59 |
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60 TimeSeriesCollection tsc = (TimeSeriesCollection) dataset; |
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61 |
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62 datasets.add(tsc); |
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63 mergeRanges(tsc); |
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64 } |
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65 |
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66 |
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67 @Override |
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68 public XYDataset[] getDatasets() { |
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69 return (XYDataset[]) |
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70 datasets.toArray(new XYDataset[datasets.size()]); |
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71 } |
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72 |
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73 |
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74 @Override |
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75 public boolean isEmpty() { |
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76 return datasets.isEmpty(); |
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77 } |
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78 |
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79 |
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80 @Override |
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81 public void setRange(Range range) { |
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82 this.range = range; |
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83 } |
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84 |
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85 |
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86 @Override |
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87 public Range getRange() { |
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88 return range; |
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89 } |
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90 |
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91 |
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92 @Override |
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93 public void setPlotAxisIndex(int plotAxisIndex) { |
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94 this.plotAxisIndex = plotAxisIndex; |
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95 } |
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96 |
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97 |
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98 @Override |
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99 public int getPlotAxisIndex() { |
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100 return plotAxisIndex; |
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101 } |
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102 |
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103 |
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104 @Override |
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105 public boolean isArea(XYDataset dataset) { |
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106 logger.warn("This AxisDataset doesn't support Areas yet!"); |
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107 return false; |
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108 } |
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109 |
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110 |
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111 protected void mergeRanges(TimeSeriesCollection dataset) { |
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112 logger.debug("Range after merging: " + range); |
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113 |
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114 Bounds[] xyRanges = ChartHelper.getBounds(dataset); |
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115 |
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116 // TODO COMBINE BOUNDS! |
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117 |
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118 logger.debug("Range after merging: " + range); |
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119 } |
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120 |
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121 } // end of TimeseriesAxisDataset class |
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122 |
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123 |
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124 |
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125 private static final Logger logger = |
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126 Logger.getLogger(TimeseriesChartGenerator.class); |
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127 |
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128 |
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129 public static final int AXIS_SPACE = 5; |
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130 |
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131 |
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132 protected Map<Integer, Bounds> xRanges; |
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133 |
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134 protected Map<Integer, Bounds> yRanges; |
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135 |
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136 |
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137 |
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138 /** |
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139 * The default constructor that initializes internal datastructures. |
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140 */ |
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141 public TimeseriesChartGenerator() { |
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142 super(); |
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143 |
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144 xRanges = new HashMap<Integer, Bounds>(); |
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145 yRanges = new HashMap<Integer, Bounds>(); |
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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 @Override |
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151 public JFreeChart generateChart() { |
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152 logger.info("Generate Timeseries Chart."); |
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153 |
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154 JFreeChart chart = ChartFactory.createTimeSeriesChart( |
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155 getChartTitle(), |
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156 getXAxisLabel(), |
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157 getYAxisLabel(0), |
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158 null, |
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159 isLegendVisible(), |
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160 false, |
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161 false); |
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162 |
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163 XYPlot plot = (XYPlot) chart.getPlot(); |
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164 |
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165 chart.setBackgroundPaint(Color.WHITE); |
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166 plot.setBackgroundPaint(Color.WHITE); |
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167 |
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168 addSubtitles(chart); |
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169 adjustPlot(plot); |
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170 addDatasets(plot); |
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171 |
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172 adaptZoom(plot); |
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173 |
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174 return chart; |
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175 } |
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176 |
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177 |
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178 @Override |
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179 protected Series getSeriesOf(XYDataset dataset, int idx) { |
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180 return ((TimeSeriesCollection) dataset).getSeries(idx); |
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181 } |
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182 |
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183 |
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184 // TODO DECLARE IN UPPER CLASS AND ADD OVERRIDE ANNOTATION |
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185 protected Bounds getXRange(int axis) { |
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186 return xRanges.get(Integer.valueOf(axis)); |
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187 } |
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188 |
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189 |
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190 @Override |
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191 // TODO setXRange should always await a Bounds instance! |
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192 // TODO SHOULD BE REMOVED WHEN DEFINED IN UPPER CLASS |
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193 protected void setXRange(int axis, Range range) { |
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194 // do nothing here, we will use setXRange(int, Bounds) now |
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195 } |
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196 |
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197 |
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198 @Override |
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199 // TODO setYRange should always await a Bounds instance! |
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200 protected void setYRange(int axis, Range range) { |
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201 if (range == null) { |
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202 logger.warn("Range is null!"); |
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203 return; |
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204 } |
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205 |
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206 setYBounds(Integer.valueOf(axis), new DoubleBounds( |
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207 range.getLowerBound(), |
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208 range.getUpperBound())); |
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209 } |
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210 |
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211 |
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212 /** |
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213 * This method creates new instances of TimeseriesAxisDataset. |
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214 * |
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215 * @param idx The symbol for the new TimeseriesAxisDataset. |
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216 */ |
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217 @Override |
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218 protected AxisDataset createAxisDataset(int idx) { |
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219 logger.debug("Create a new AxisDataset for index: " + idx); |
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220 return new TimeseriesAxisDataset(idx); |
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221 } |
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222 |
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223 |
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224 // TODO THIS SHOULD BE DONE IN AN UPPER CLASS! |
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225 @Override |
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226 public void addAxisDataset(XYDataset dataset, int idx, boolean visible) { |
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227 if (dataset == null || idx < 0) { |
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228 return; |
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229 } |
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230 |
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231 AxisDataset axisDataset = getAxisDataset(idx); |
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232 |
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233 Bounds[] bounds = ChartHelper.getBounds((TimeSeriesCollection)dataset); |
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234 |
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235 if (bounds == null) { |
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236 logger.warn("Skip XYDataset for Axis (invalid ranges): " + idx); |
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237 return; |
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238 } |
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239 |
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240 if (visible) { |
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241 if (logger.isDebugEnabled()) { |
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242 logger.debug("Add new AxisDataset at index: " + idx); |
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243 logger.debug("X extent: " + bounds[0]); |
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244 logger.debug("Y extent: " + bounds[1]); |
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245 } |
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246 |
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247 axisDataset.addDataset(dataset); |
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248 } |
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249 |
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250 combineXRanges(bounds[0], 0); |
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251 combineYRanges(bounds[1], idx); |
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252 } |
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253 |
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254 |
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255 /** |
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256 * Effect: extend range of x axis to include given limits. |
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257 * @param range the given ("minimal") range. |
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258 * @param index index of axis to be merged. |
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259 */ |
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260 @Override |
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261 protected void combineXRanges(Range range, int index) { |
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262 throw new RuntimeException( |
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263 "TimeseriesChartGenerator.combineXRanges is not implemented!"); |
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264 } |
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265 |
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266 |
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267 protected void combineXRanges(Bounds bounds, int index) { |
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268 if (bounds != null) { |
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269 Bounds old = getXRange(index); |
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270 |
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271 if (old != null) { |
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272 bounds = bounds.combine(old); |
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273 } |
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274 |
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275 setXBounds(index, bounds); |
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276 } |
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277 } |
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278 |
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279 |
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280 protected void combineYRanges(Bounds bounds, int index) { |
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281 if (bounds != null) { |
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282 Bounds old = getYBounds(index); |
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283 |
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284 if (old != null) { |
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285 bounds = bounds.combine(old); |
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286 } |
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287 |
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288 setYBounds(index, bounds); |
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289 } |
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290 } |
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291 |
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292 |
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293 // TODO REPLACE THIS METHOD WITH getBoundsForAxis(index) |
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294 @Override |
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295 public Range[] getRangesForAxis(int index) { |
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296 // TODO |
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297 Bounds[] bounds = getBoundsForAxis(index); |
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298 |
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299 return new Range[] { |
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300 new Range( |
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301 bounds[0].getLower().doubleValue(), |
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302 bounds[0].getUpper().doubleValue()), |
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303 new Range( |
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304 bounds[1].getLower().doubleValue(), |
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305 bounds[1].getUpper().doubleValue()) |
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306 }; |
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307 } |
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308 |
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309 |
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310 @Override |
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311 public Bounds getXBounds(int axis) { |
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312 return xRanges.get(axis); |
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313 } |
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314 |
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315 |
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316 @Override |
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317 protected void setXBounds(int axis, Bounds bounds) { |
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318 xRanges.put(axis, bounds); |
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319 } |
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320 |
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321 |
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322 @Override |
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323 public Bounds getYBounds(int axis) { |
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324 return yRanges.get(axis); |
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325 } |
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326 |
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327 |
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328 @Override |
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329 protected void setYBounds(int axis, Bounds bounds) { |
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330 yRanges.put(axis, bounds); |
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331 } |
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332 |
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333 |
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334 public Bounds[] getBoundsForAxis(int index) { |
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335 logger.debug("Return x and y bounds for axis at: " + index); |
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336 |
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337 Bounds rx = getXBounds(Integer.valueOf(index)); |
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338 Bounds ry = getYBounds(Integer.valueOf(index)); |
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339 |
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340 if (rx == null) { |
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341 logger.warn("Range for x axis not set." + |
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342 " Using default values: 0 - 1."); |
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343 rx = new TimeBounds(0l, 1l); |
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344 } |
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345 |
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346 if (ry == null) { |
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347 logger.warn("Range for y axis not set." + |
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348 " Using default values: 0 - 1."); |
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349 ry = new DoubleBounds(0l, 1l); |
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350 } |
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351 |
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352 logger.debug("X Bounds at index " + index + " is: " + rx); |
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353 logger.debug("Y Bounds at index " + index + " is: " + ry); |
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354 |
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355 return new Bounds[] {rx, ry}; |
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356 } |
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357 |
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358 |
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359 public Bounds getDomainAxisRange() { |
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360 String[] ranges = getDomainAxisRangeFromRequest(); |
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361 |
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362 if (ranges == null || ranges.length < 2) { |
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363 logger.debug("No zoom range for domain axis specified."); |
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364 return null; |
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365 } |
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366 |
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367 if (ranges[0] == null || ranges[1] == null) { |
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368 logger.warn("Invalid ranges for domain axis specified!"); |
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369 return null; |
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370 } |
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371 |
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372 try { |
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373 double lower = Double.parseDouble(ranges[0]); |
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374 double upper = Double.parseDouble(ranges[1]); |
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375 |
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376 return new DoubleBounds(lower, upper); |
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377 } |
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378 catch (NumberFormatException nfe) { |
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379 logger.warn("Invalid ranges for domain axis specified: " + nfe); |
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380 } |
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381 |
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382 return null; |
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383 } |
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384 |
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385 |
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386 public Bounds getValueAxisRange() { |
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387 String[] ranges = getValueAxisRangeFromRequest(); |
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388 |
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389 if (ranges == null || ranges.length < 2) { |
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390 logger.debug("No zoom range for domain axis specified."); |
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391 return null; |
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392 } |
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393 |
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394 if (ranges[0] == null || ranges[1] == null) { |
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395 logger.warn("Invalid ranges for domain axis specified!"); |
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396 return null; |
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397 } |
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398 |
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399 try { |
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400 double lower = Double.parseDouble(ranges[0]); |
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401 double upper = Double.parseDouble(ranges[1]); |
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402 |
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403 return new DoubleBounds(lower, upper); |
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404 } |
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405 catch (NumberFormatException nfe) { |
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406 logger.warn("Invalid ranges for domain axis specified: " + nfe); |
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407 } |
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408 |
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409 return null; |
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|
410 } |
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411 |
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412 |
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413 protected void adaptZoom(XYPlot plot) { |
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414 logger.debug("Adapt zoom of Timeseries chart."); |
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415 |
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|
416 zoomX(plot, plot.getDomainAxis(), getXRange(0), getDomainAxisRange()); |
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417 |
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418 Bounds valueAxisBounds = getValueAxisRange(); |
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419 |
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420 for (int j = 0, n = plot.getRangeAxisCount(); j < n; j++) { |
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421 zoomY( |
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422 plot, |
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423 plot.getRangeAxis(j), |
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424 getYBounds(j), |
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425 valueAxisBounds); |
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426 } |
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427 } |
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428 |
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429 |
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430 protected void zoomX( |
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431 XYPlot plot, |
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432 ValueAxis axis, |
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433 Bounds total, |
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434 Bounds user |
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435 ) { |
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436 if (logger.isDebugEnabled()) { |
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437 logger.debug("== Zoom X axis =="); |
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438 logger.debug(" Total axis range : " + total); |
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439 logger.debug(" User defined range: " + user); |
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440 } |
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441 |
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442 if (user != null) { |
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443 long min = total.getLower().longValue(); |
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444 long max = total.getUpper().longValue(); |
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445 long diff = max > min ? max - min : min - max; |
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446 |
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447 long newMin = (long) Math.round(min + user.getLower().doubleValue() * diff); |
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448 long newMax = (long) Math.round(min + user.getUpper().doubleValue() * diff); |
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449 |
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450 TimeBounds newBounds = new TimeBounds(newMin, newMax); |
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451 |
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452 logger.debug(" Zoom axis to: " + newBounds); |
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453 |
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454 newBounds.applyBounds(axis, AXIS_SPACE); |
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455 } |
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456 else { |
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457 logger.debug("No user specified zoom values found!"); |
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458 total.applyBounds(axis, AXIS_SPACE); |
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459 } |
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460 } |
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461 |
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462 |
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463 protected void zoomY( |
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464 XYPlot plot, |
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465 ValueAxis axis, |
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466 Bounds total, |
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467 Bounds user |
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468 ) { |
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469 if (logger.isDebugEnabled()) { |
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470 logger.debug("== Zoom Y axis =="); |
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471 logger.debug(" Total axis range : " + total); |
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472 logger.debug(" User defined range: " + user); |
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473 } |
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474 |
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475 if (user != null) { |
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476 double min = total.getLower().doubleValue(); |
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477 double max = total.getUpper().doubleValue(); |
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478 double diff = max > min ? max - min : min - max; |
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479 |
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480 double newMin = min + user.getLower().doubleValue() * diff; |
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481 double newMax = min + user.getUpper().doubleValue() * diff; |
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482 |
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483 DoubleBounds newBounds = new DoubleBounds(newMin, newMax); |
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484 |
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485 logger.debug(" Zoom axis to: " + newBounds); |
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486 |
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487 newBounds.applyBounds(axis, AXIS_SPACE); |
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488 } |
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489 else { |
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490 logger.debug("No user specified zoom values found!"); |
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491 total.applyBounds(axis, AXIS_SPACE); |
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492 } |
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6aeb71517136
Registered an Info generator for historical discharge curves; made some adaptions in XYChartGenerator, ChartGenerator and TimeseriesChartGenerator.
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493 } |
2233
958a10e2e246
Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
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494 } |
958a10e2e246
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495 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |