Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/TimeseriesChartGenerator.java @ 2242:7e8e1d5384c0

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Further refactoring of XYChartGenerator / ChartGenerator with the result, that timerange charts are now able to display lines. flys-artifacts/trunk@3890 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 03 Feb 2012 09:39:22 +0000
parents 23c7c51df772
children 6aeb71517136
rev   line source
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958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
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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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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.plot.XYPlot;
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15
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16 import org.jfree.data.Range;
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
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17 import org.jfree.data.time.TimeSeriesCollection;
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18 import org.jfree.data.general.Series;
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19 import org.jfree.data.xy.XYDataset;
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20
958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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21
958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
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22 /**
958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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23 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
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24 */
958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
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25 public abstract class TimeseriesChartGenerator extends ChartGenerator {
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28 /**
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29 * Inner class TimeseriesAxisDataset stores TimeSeriesCollection.
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30 */
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31 public class TimeseriesAxisDataset implements AxisDataset {
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32
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33 protected int axisSymbol;
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35 protected List<TimeSeriesCollection> datasets;
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37 protected Range range;
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39 protected int plotAxisIndex;
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42 public TimeseriesAxisDataset(int axisSymbol) {
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43 this.axisSymbol = axisSymbol;
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44 this.datasets = new ArrayList<TimeSeriesCollection>();
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45 }
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47
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48 @Override
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49 public void addDataset(XYDataset dataset) {
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50 if (!(dataset instanceof TimeSeriesCollection)) {
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51 logger.warn("Skip non TimeSeriesCollection dataset.");
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52 return;
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53 }
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54
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55 TimeSeriesCollection tsc = (TimeSeriesCollection) dataset;
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56
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57 datasets.add(tsc);
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58 mergeRanges(tsc);
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59 }
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62 @Override
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63 public XYDataset[] getDatasets() {
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64 return (XYDataset[])
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65 datasets.toArray(new XYDataset[datasets.size()]);
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66 }
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69 @Override
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70 public boolean isEmpty() {
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71 return datasets.isEmpty();
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72 }
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74
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75 @Override
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76 public void setRange(Range range) {
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77 this.range = range;
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78 }
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81 @Override
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82 public Range getRange() {
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83 return range;
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84 }
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87 @Override
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88 public void setPlotAxisIndex(int plotAxisIndex) {
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89 this.plotAxisIndex = plotAxisIndex;
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90 }
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93 @Override
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94 public int getPlotAxisIndex() {
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95 return plotAxisIndex;
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96 }
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98
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99 @Override
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100 public boolean isArea(XYDataset dataset) {
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101 logger.warn("This AxisDataset doesn't support Areas yet!");
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102 return false;
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103 }
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104
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105
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106 protected void mergeRanges(TimeSeriesCollection dataset) {
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107 logger.debug("Range after merging: " + range);
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108
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109 Range[] xyRanges = ChartHelper.getRanges(dataset);
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110 range = Range.combine(range, xyRanges[1]);
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111
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112 logger.debug("Range after merging: " + range);
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113 }
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114
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115 } // end of TimeseriesAxisDataset class
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116
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117
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118
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119 private static final Logger logger =
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120 Logger.getLogger(TimeseriesChartGenerator.class);
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121
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122
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123 protected Map<Integer, Range> xRanges;
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124
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125 protected Map<Integer, Range> yRanges;
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126
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127
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128
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129 /**
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130 * The default constructor that initializes internal datastructures.
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131 */
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132 public TimeseriesChartGenerator() {
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133 super();
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134
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135 xRanges = new HashMap<Integer, Range>();
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136 yRanges = new HashMap<Integer, Range>();
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137 }
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138
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139
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140
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141 @Override
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142 public JFreeChart generateChart() {
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143 logger.info("Generate Timeseries Chart.");
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144
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145 JFreeChart chart = ChartFactory.createTimeSeriesChart(
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146 getChartTitle(),
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147 getXAxisLabel(),
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148 getYAxisLabel(0),
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149 null,
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150 true,
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151 false,
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152 false);
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153
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154 logger.warn("TODO: IMPLEMENT ME!");
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155
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156 XYPlot plot = (XYPlot) chart.getPlot();
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157
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158 chart.setBackgroundPaint(Color.WHITE);
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159 plot.setBackgroundPaint(Color.WHITE);
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160
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161 addSubtitles(chart);
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162 addDatasets(plot);
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163
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164 return chart;
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165 }
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166
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167
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168 @Override
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169 protected Series getSeriesOf(XYDataset dataset, int idx) {
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170 return ((TimeSeriesCollection) dataset).getSeries(idx);
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171 }
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172
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173
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174 @Override
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175 protected void setXRange(int axis, Range range) {
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176 xRanges.put(Integer.valueOf(axis), range);
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177 }
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178
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179
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180 @Override
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181 protected void setYRange(int axis, Range range) {
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182 yRanges.put(Integer.valueOf(axis), range);
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183 }
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184
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185
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186 /**
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187 * This method creates new instances of TimeseriesAxisDataset.
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188 *
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189 * @param idx The symbol for the new TimeseriesAxisDataset.
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190 */
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191 @Override
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192 protected AxisDataset createAxisDataset(int idx) {
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193 logger.debug("Create a new AxisDataset for index: " + idx);
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194 return new TimeseriesAxisDataset(idx);
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195 }
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196
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197
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198 /**
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199 * Effect: extend range of x axis to include given limits.
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200 * @param range the given ("minimal") range.
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201 * @param index index of axis to be merged.
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202 */
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203 @Override
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204 protected void combineXRanges(Range range, int index) {
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205 if (range != null) {
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206 Range old = xRanges.get(index);
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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207
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
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208 if (old != null) {
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
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209 range = Range.combine(old, range);
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2236
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210 }
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2236
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211
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2236
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212 xRanges.put(index, range);
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2236
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213 }
23c7c51df772 Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 2236
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214 }
2233
958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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215 }
958a10e2e246 Added a new ChartGenerator for timeseries charts and refactored some code in XYChartGenerator.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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216 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org