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> |
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date | Mon, 15 Feb 2010 11:44:01 +0000 |
parents | |
children | 65f09139e9b3 |
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616:93978859fa9e | 617:3d13fa281a7e |
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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 : |