Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalProfileChart.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 | 3ea030aafe65 |
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| 297:3f43392df3f6 | 298:80f7c5dc09c6 |
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| 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.data.xy.XYSeries; | |
| 11 import org.jfree.data.general.Series; | |
| 12 import org.jfree.data.xy.XYDataset; | |
| 13 import org.jfree.data.xy.XYSeriesCollection; | |
| 14 import org.jfree.chart.plot.XYPlot; | |
| 15 import org.jfree.chart.plot.PlotOrientation; | |
| 16 | |
| 17 import de.intevation.gnv.geobackend.base.Result; | |
| 18 | |
| 19 | |
| 20 /** | |
| 21 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> | |
| 22 */ | |
| 23 public class VerticalProfileChart | |
| 24 extends AbstractXYLineChart | |
| 25 { | |
| 26 private static Logger log = Logger.getLogger(VerticalProfileChart.class); | |
| 27 | |
| 28 | |
| 29 public VerticalProfileChart( | |
| 30 ChartLabels labels, | |
| 31 ChartTheme theme, | |
| 32 Collection parameters, | |
| 33 Collection measurements, | |
| 34 Collection result, | |
| 35 Collection dates, | |
| 36 Locale locale | |
| 37 ) { | |
| 38 this.labels = labels; | |
| 39 this.theme = theme; | |
| 40 this.parameters = parameters; | |
| 41 this.measurements = measurements; | |
| 42 this.resultSet = result; | |
| 43 this.dates = dates; | |
| 44 this.locale = locale; | |
| 45 this.PLOT_ORIENTATION = PlotOrientation.HORIZONTAL; | |
| 46 } | |
| 47 | |
| 48 | |
| 49 protected void initData() { | |
| 50 log.debug("init data for VerticalProfileChart"); | |
| 51 | |
| 52 String breakPoint1 = null; | |
| 53 String breakPoint2 = null; | |
| 54 String breakPoint3 = null; | |
| 55 | |
| 56 Iterator iter = resultSet.iterator(); | |
| 57 Result row = null; | |
| 58 String seriesName = null; | |
| 59 XYSeries series = null; | |
| 60 | |
| 61 int idx = 0; | |
| 62 | |
| 63 while (iter.hasNext()) { | |
| 64 row = (Result) iter.next(); | |
| 65 | |
| 66 // add current data to plot and prepare for next one | |
| 67 if (!row.getString("GROUP1").equals(breakPoint1) || | |
| 68 !row.getString("GROUP2").equals(breakPoint2) || | |
| 69 !row.getString("GROUP3").equals(breakPoint3) | |
| 70 ) { | |
| 71 log.debug("prepare data/plot for next dataset"); | |
| 72 | |
| 73 if(series != null) { | |
| 74 addSeries(series, idx); | |
| 75 prepareAxis(((String)series.getKey()), idx++); | |
| 76 } | |
| 77 | |
| 78 // prepare variables for next plot | |
| 79 breakPoint1 = row.getString("GROUP1"); | |
| 80 breakPoint2 = row.getString("GROUP2"); | |
| 81 breakPoint3 = row.getString("GROUP3"); | |
| 82 | |
| 83 seriesName = createSeriesName( | |
| 84 breakPoint1, | |
| 85 breakPoint2, | |
| 86 breakPoint3 | |
| 87 ); | |
| 88 | |
| 89 log.debug("next dataset is '" + seriesName + "'"); | |
| 90 series = new XYSeries(seriesName); | |
| 91 } | |
| 92 | |
| 93 addValue(row, series); | |
| 94 } | |
| 95 | |
| 96 addSeries(series, idx); | |
| 97 prepareAxis(((String)series.getKey()), idx++); | |
| 98 } | |
| 99 | |
| 100 | |
| 101 protected void addValue(Result row, Series series) { | |
| 102 // TODO look for gaps between two values | |
| 103 ((XYSeries) series).add( | |
| 104 row.getDouble("XORDINATE"), | |
| 105 row.getDouble("YORDINATE") | |
| 106 ); | |
| 107 } | |
| 108 | |
| 109 | |
| 110 protected void addSeries(Series series, int idx) { | |
| 111 log.debug("add series to verticalprofile chart"); | |
| 112 XYPlot plot = chart.getXYPlot(); | |
| 113 | |
| 114 if (series == null) { | |
| 115 log.warn("no data to add"); | |
| 116 return; | |
| 117 } | |
| 118 | |
| 119 XYSeriesCollection xysc = new XYSeriesCollection((XYSeries)series); | |
| 120 plot.setDataset(idx, xysc); | |
| 121 } | |
| 122 | |
| 123 | |
| 124 protected String createSeriesName( | |
| 125 String breakPoint1, | |
| 126 String breakPoint2, | |
| 127 String breakPoint3 | |
| 128 ) { | |
| 129 log.debug("create seriesname of verticalprofile chart"); | |
| 130 return findValueTitle(parameters, breakPoint1) + | |
| 131 " " + | |
| 132 findValueTitle(measurements, breakPoint2) + | |
| 133 "m"; | |
| 134 } | |
| 135 } | |
| 136 // vim:set ts=4 sw=4 si et sta sts=4 fenc=latin1 : |