Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/chart/TimeSeriesChart.java @ 298:80f7c5dc09c6
Implementation of classes for creating timeseries, verticalprofile and horizontalprofile charts.
gnv-artifacts/trunk@352 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Thu, 19 Nov 2009 15:30:27 +0000 |
| parents | |
| children | 45625b5cd6d4 |
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| 297:3f43392df3f6 | 298:80f7c5dc09c6 |
|---|---|
| 1 package de.intevation.gnv.chart; | |
| 2 | |
| 3 import java.util.Collection; | |
| 4 import java.util.Iterator; | |
| 5 import java.util.Locale; | |
| 6 | |
| 7 import org.apache.log4j.Logger; | |
| 8 | |
| 9 import org.jfree.chart.ChartTheme; | |
| 10 import org.jfree.chart.plot.XYPlot; | |
| 11 import org.jfree.chart.plot.PlotOrientation; | |
| 12 import org.jfree.data.general.Series; | |
| 13 import org.jfree.data.time.TimeSeries; | |
| 14 import org.jfree.data.time.Minute; | |
| 15 import org.jfree.data.time.TimeSeriesCollection; | |
| 16 | |
| 17 import de.intevation.gnv.geobackend.base.Result; | |
| 18 | |
| 19 | |
| 20 /** | |
| 21 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> | |
| 22 */ | |
| 23 public class TimeSeriesChart | |
| 24 extends AbstractXYLineChart | |
| 25 { | |
| 26 | |
| 27 private static Logger log = Logger.getLogger(TimeSeriesChart.class); | |
| 28 | |
| 29 | |
| 30 public TimeSeriesChart( | |
| 31 ChartLabels labels, | |
| 32 ChartTheme theme, | |
| 33 Collection parameters, | |
| 34 Collection measurements, | |
| 35 Collection result, | |
| 36 Collection dates, | |
| 37 Locale locale | |
| 38 ) { | |
| 39 this.labels = labels; | |
| 40 this.theme = theme; | |
| 41 this.parameters = parameters; | |
| 42 this.measurements = measurements; | |
| 43 this.resultSet = result; | |
| 44 this.dates = dates; | |
| 45 this.locale = locale; | |
| 46 this.PLOT_ORIENTATION = PlotOrientation.VERTICAL; | |
| 47 } | |
| 48 | |
| 49 | |
| 50 protected void initData() { | |
| 51 log.debug("init data for timeseries chart"); | |
| 52 | |
| 53 String breakPoint1 = null; | |
| 54 String breakPoint2 = null; | |
| 55 String breakPoint3 = null; | |
| 56 | |
| 57 Iterator iter = resultSet.iterator(); | |
| 58 Result row = null; | |
| 59 String seriesName = null; | |
| 60 TimeSeries series = null; | |
| 61 | |
| 62 int idx = 0; | |
| 63 | |
| 64 while (iter.hasNext()) { | |
| 65 row = (Result) iter.next(); | |
| 66 | |
| 67 // add current data to plot and prepare for next one | |
| 68 if (!row.getString("GROUP1").equals(breakPoint1) || | |
| 69 !row.getString("GROUP2").equals(breakPoint2) || | |
| 70 !row.getString("GROUP3").equals(breakPoint3) | |
| 71 ) { | |
| 72 log.debug("prepare data/plot for next dataset"); | |
| 73 | |
| 74 if(series != null) { | |
| 75 addSeries(series, idx); | |
| 76 prepareAxis(((String)series.getKey()), idx++); | |
| 77 } | |
| 78 | |
| 79 // prepare variables for next plot | |
| 80 breakPoint1 = row.getString("GROUP1"); | |
| 81 breakPoint2 = row.getString("GROUP2"); | |
| 82 breakPoint3 = row.getString("GROUP3"); | |
| 83 | |
| 84 seriesName = createSeriesName( | |
| 85 breakPoint1, | |
| 86 breakPoint2, | |
| 87 breakPoint3 | |
| 88 ); | |
| 89 | |
| 90 log.debug("next dataset is '" + seriesName + "'"); | |
| 91 series = new TimeSeries(seriesName, Minute.class); | |
| 92 } | |
| 93 | |
| 94 addValue(row, series); | |
| 95 } | |
| 96 | |
| 97 // add the last dataset if existing to plot and prepare its axis | |
| 98 addSeries(series, idx); | |
| 99 prepareAxis(((String)series.getKey()), idx++); | |
| 100 } | |
| 101 | |
| 102 | |
| 103 protected void addValue(Result row, Series series) { | |
| 104 // TODO look for gaps between two values | |
| 105 ((TimeSeries) series).addOrUpdate( | |
| 106 new Minute(row.getDate("XORDINATE")), | |
| 107 row.getDouble("YORDINATE") | |
| 108 ); | |
| 109 } | |
| 110 | |
| 111 | |
| 112 protected void addSeries(Series series, int idx) { | |
| 113 log.debug("add series to timeseries chart"); | |
| 114 XYPlot plot = chart.getXYPlot(); | |
| 115 | |
| 116 if (series == null) { | |
| 117 log.warn("no data to add"); | |
| 118 return; | |
| 119 } | |
| 120 | |
| 121 TimeSeriesCollection tsc = new TimeSeriesCollection((TimeSeries)series); | |
| 122 plot.setDataset(idx, tsc); | |
| 123 } | |
| 124 | |
| 125 | |
| 126 protected String createSeriesName( | |
| 127 String breakPoint1, | |
| 128 String breakPoint2, | |
| 129 String breakPoint3 | |
| 130 ) { | |
| 131 log.debug("create seriesname of timeseries chart"); | |
| 132 return findValueTitle(parameters, breakPoint1) + | |
| 133 " " + | |
| 134 findValueTitle(measurements, breakPoint2) + | |
| 135 "m"; | |
| 136 } | |
| 137 } | |
| 138 // vim:set ts=4 sw=4 si et sta sts=4 fenc=latin1 : |