Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractHistogram.java @ 617:3d13fa281a7e
Added new ouput mode: histogram.
gnv-artifacts/trunk@688 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Mon, 15 Feb 2010 11:44:01 +0000 |
| parents | |
| children | 65f09139e9b3 |
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| 616:93978859fa9e | 617:3d13fa281a7e |
|---|---|
| 1 package de.intevation.gnv.chart; | |
| 2 | |
| 3 import java.util.Locale; | |
| 4 | |
| 5 import org.apache.log4j.Logger; | |
| 6 | |
| 7 import org.jfree.chart.ChartFactory; | |
| 8 import org.jfree.chart.ChartTheme; | |
| 9 import org.jfree.chart.JFreeChart; | |
| 10 | |
| 11 import org.jfree.chart.axis.NumberAxis; | |
| 12 import org.jfree.chart.plot.PlotOrientation; | |
| 13 import org.jfree.chart.plot.XYPlot; | |
| 14 import org.jfree.chart.renderer.xy.XYBarRenderer; | |
| 15 | |
| 16 import org.jfree.data.statistics.HistogramDataset; | |
| 17 | |
| 18 | |
| 19 /** | |
| 20 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de) | |
| 21 */ | |
| 22 public abstract class AbstractHistogram | |
| 23 implements Chart | |
| 24 { | |
| 25 private Logger logger = Logger.getLogger(AbstractHistogram.class); | |
| 26 | |
| 27 protected JFreeChart chart; | |
| 28 protected ChartLabels labels; | |
| 29 protected ChartTheme theme; | |
| 30 protected Object[] data; | |
| 31 | |
| 32 protected Locale locale; | |
| 33 | |
| 34 | |
| 35 public AbstractHistogram( | |
| 36 ChartLabels labels, Object[] data, ChartTheme theme | |
| 37 ) { | |
| 38 this.labels = labels; | |
| 39 this.data = data; | |
| 40 this.theme = theme; | |
| 41 } | |
| 42 | |
| 43 | |
| 44 public JFreeChart generateChart() { | |
| 45 | |
| 46 if (chart != null) | |
| 47 return chart; | |
| 48 | |
| 49 chart = ChartFactory.createHistogram( | |
| 50 labels.getTitle(), | |
| 51 labels.getDomainAxisLabel(), | |
| 52 labels.getRangeAxisLabel(), | |
| 53 null, | |
| 54 PlotOrientation.VERTICAL, | |
| 55 true, | |
| 56 false, | |
| 57 false); | |
| 58 | |
| 59 applyDatasets(); | |
| 60 | |
| 61 theme.apply(chart); | |
| 62 adjustPlot(); | |
| 63 | |
| 64 return chart; | |
| 65 } | |
| 66 | |
| 67 | |
| 68 protected void adjustPlot() { | |
| 69 XYPlot plot = (XYPlot) chart.getPlot(); | |
| 70 XYBarRenderer renderer = (XYBarRenderer) plot.getRenderer(); | |
| 71 | |
| 72 renderer.setShadowVisible(false); | |
| 73 renderer.setSeriesVisibleInLegend(0, false); | |
| 74 } | |
| 75 | |
| 76 | |
| 77 protected abstract void applyDatasets(); | |
| 78 } | |
| 79 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |