Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/exports/TimeseriesChartGenerator.java @ 2238:23c7c51df772

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Some more refactoring in XYChartGenerator and ChartGenerator; implemented necessary stuff in TimeseriesChartGenerator and return new empty instances of timeseries charts. flys-artifacts/trunk@3885 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 02 Feb 2012 15:44:13 +0000
parents c2b15d9c0f43
children 7e8e1d5384c0
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.axis.NumberAxis;
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15 import org.jfree.chart.plot.XYPlot;
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16
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.Range;
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18 import org.jfree.data.time.TimeSeriesCollection;
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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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.
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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.
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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 */
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25 public abstract class TimeseriesChartGenerator extends ChartGenerator {
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27
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28 /**
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29 * Inner class TimeseriesAxisDataset stores TimeSeriesCollection.
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30 */
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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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;
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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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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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 boolean isEmpty() {
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64 return datasets.isEmpty();
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65 }
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68 protected void mergeRanges(TimeSeriesCollection dataset) {
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69 logger.debug("Range after merging: " + range);
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71 Range[] xyRanges = ChartHelper.getRanges(dataset);
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72 range = Range.combine(range, xyRanges[1]);
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74 logger.debug("Range after merging: " + range);
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75 }
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77 } // end of TimeseriesAxisDataset class
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81 private static final Logger logger =
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82 Logger.getLogger(TimeseriesChartGenerator.class);
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83
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84
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85 protected Map<Integer, Range> xRanges;
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89 /**
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90 * The default constructor that initializes internal datastructures.
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91 */
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92 public TimeseriesChartGenerator() {
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93 super();
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94
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95 xRanges = new HashMap<Integer, Range>();
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96 }
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97
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98
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99
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100 @Override
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101 public JFreeChart generateChart() {
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102 logger.info("Generate Timeseries Chart.");
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103
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104 JFreeChart chart = ChartFactory.createTimeSeriesChart(
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105 getChartTitle(),
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106 getXAxisLabel(),
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107 getYAxisLabel(0),
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108 null,
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109 true,
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110 false,
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111 false);
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112
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113 logger.warn("TODO: IMPLEMENT ME!");
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114
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115 XYPlot plot = (XYPlot) chart.getPlot();
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116
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117 chart.setBackgroundPaint(Color.WHITE);
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118 plot.setBackgroundPaint(Color.WHITE);
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119
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120 addSubtitles(chart);
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121 addDatasets(plot);
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122
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123 return chart;
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124 }
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125
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126
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127 /**
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128 * This method creates new instances of TimeseriesAxisDataset.
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129 *
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130 * @param idx The symbol for the new TimeseriesAxisDataset.
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131 */
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132 @Override
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133 protected AxisDataset createAxisDataset(int idx) {
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134 logger.debug("Create a new AxisDataset for index: " + idx);
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135 return new TimeseriesAxisDataset(idx);
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136 }
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137
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138
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139 /**
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140 * Effect: extend range of x axis to include given limits.
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141 * @param range the given ("minimal") range.
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142 * @param index index of axis to be merged.
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143 */
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144 @Override
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145 protected void combineXRanges(Range range, int index) {
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146 if (range != null) {
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147 Range old = xRanges.get(index);
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148
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149 if (old != null) {
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150 range = Range.combine(old, range);
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151 }
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152
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153 xRanges.put(index, range);
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154 }
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155 }
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156
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157
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158 protected void addDatasets(XYPlot plot) {
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159 logger.warn("TODO: IMPLEMENT ME!");
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160 }
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161 }
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162 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org