Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/exports/XYChartGenerator.java @ 419:4de7d9eac10f
Display gridlines in charts.
flys-artifacts/trunk@1889 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Tue, 10 May 2011 17:12:15 +0000 |
parents | 0385bcc4229a |
children | bab867fb37e8 |
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418:e0fec407a280 | 419:4de7d9eac10f |
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1 package de.intevation.flys.exports; | 1 package de.intevation.flys.exports; |
2 | 2 |
3 import java.awt.BasicStroke; | |
3 import java.awt.Color; | 4 import java.awt.Color; |
5 import java.awt.Stroke; | |
4 | 6 |
5 import java.io.IOException; | 7 import java.io.IOException; |
6 | 8 |
7 import org.apache.log4j.Logger; | 9 import org.apache.log4j.Logger; |
8 | 10 |
22 */ | 24 */ |
23 public abstract class XYChartGenerator extends ChartGenerator { | 25 public abstract class XYChartGenerator extends ChartGenerator { |
24 | 26 |
25 /** The logger that is used in this generator.*/ | 27 /** The logger that is used in this generator.*/ |
26 private static Logger logger = Logger.getLogger(ChartGenerator.class); | 28 private static Logger logger = Logger.getLogger(ChartGenerator.class); |
29 | |
30 | |
31 public static final Color DEFAULT_GRID_COLOR = Color.GRAY; | |
32 public static final float DEFAULT_GRID_LINE_WIDTH = 0.3f; | |
27 | 33 |
28 | 34 |
29 /** | 35 /** |
30 * Returns the title of a chart. | 36 * Returns the title of a chart. |
31 * | 37 * |
72 false); | 78 false); |
73 | 79 |
74 chart.setBackgroundPaint(Color.WHITE); | 80 chart.setBackgroundPaint(Color.WHITE); |
75 chart.getPlot().setBackgroundPaint(Color.WHITE); | 81 chart.getPlot().setBackgroundPaint(Color.WHITE); |
76 | 82 |
83 XYPlot plot = (XYPlot) chart.getPlot(); | |
84 | |
77 addDatasets(chart); | 85 addDatasets(chart); |
78 addSubtitles(chart); | 86 addSubtitles(chart); |
79 adjustAxes((XYPlot) chart.getPlot()); | 87 adjustPlot(plot); |
88 adjustAxes(plot); | |
80 | 89 |
81 ChartExportHelper.exportImage( | 90 ChartExportHelper.exportImage( |
82 out, | 91 out, |
83 chart, | 92 chart, |
84 "png", | 93 "png", |
96 | 105 |
97 yAxis.setAutoRangeIncludesZero(false); | 106 yAxis.setAutoRangeIncludesZero(false); |
98 } | 107 } |
99 | 108 |
100 | 109 |
110 protected void adjustPlot(XYPlot plot) { | |
111 Stroke gridStroke = new BasicStroke( | |
112 DEFAULT_GRID_LINE_WIDTH, | |
113 BasicStroke.CAP_BUTT, | |
114 BasicStroke.JOIN_MITER, | |
115 3.0f, | |
116 new float[] { 3.0f }, | |
117 0.0f); | |
118 | |
119 plot.setDomainGridlineStroke(gridStroke); | |
120 plot.setDomainGridlinePaint(DEFAULT_GRID_COLOR); | |
121 plot.setDomainGridlinesVisible(true); | |
122 | |
123 plot.setRangeGridlineStroke(gridStroke); | |
124 plot.setRangeGridlinePaint(DEFAULT_GRID_COLOR); | |
125 plot.setRangeGridlinesVisible(true); | |
126 } | |
127 | |
128 | |
101 protected void addSubtitles(JFreeChart chart) { | 129 protected void addSubtitles(JFreeChart chart) { |
102 // override this method in subclasses that need subtitles | 130 // override this method in subclasses that need subtitles |
103 } | 131 } |
104 } | 132 } |
105 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : | 133 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |