Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/exports/LongitudinalSectionGenerator.java @ 1034:bf3b3a8d089b
Slightly improved rendering of annotations in LongitudinalSection-plots.
flys-artifacts/trunk@2495 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
|---|---|
| date | Tue, 16 Aug 2011 11:43:47 +0000 |
| parents | 10bafb4f46cc |
| children | 9f69a5f0af98 |
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| 1033:821aaceb2776 | 1034:bf3b3a8d089b |
|---|---|
| 12 import org.jfree.chart.axis.ValueAxis; | 12 import org.jfree.chart.axis.ValueAxis; |
| 13 import org.jfree.chart.plot.XYPlot; | 13 import org.jfree.chart.plot.XYPlot; |
| 14 import org.jfree.chart.title.TextTitle; | 14 import org.jfree.chart.title.TextTitle; |
| 15 import org.jfree.data.Range; | 15 import org.jfree.data.Range; |
| 16 import org.jfree.data.xy.XYSeries; | 16 import org.jfree.data.xy.XYSeries; |
| 17 import org.jfree.ui.TextAnchor; | |
| 17 | 18 |
| 18 import org.w3c.dom.Document; | 19 import org.w3c.dom.Document; |
| 19 | 20 |
| 20 import de.intevation.artifacts.Artifact; | 21 import de.intevation.artifacts.Artifact; |
| 21 | 22 |
| 101 @Override | 102 @Override |
| 102 public JFreeChart generateChart() { | 103 public JFreeChart generateChart() { |
| 103 JFreeChart c = super.generateChart(); | 104 JFreeChart c = super.generateChart(); |
| 104 XYPlot p = (XYPlot) c.getPlot(); | 105 XYPlot p = (XYPlot) c.getPlot(); |
| 105 | 106 |
| 106 for (Annotation a: annotations) { | 107 redoAnnotations(p, p.getDomainAxis()); |
| 107 double pos = a.getRange().getA().doubleValue(); | 108 |
| 108 XYTextAnnotation ta = new XYTextAnnotation(a.getPosition().getValue(), pos, 140); | |
| 109 ta.setRotationAngle(270.0 / (Math.PI * 2.0)); | |
| 110 p.addAnnotation(ta); | |
| 111 XYLineAnnotation la = new XYLineAnnotation(pos, 0, pos, 140); | |
| 112 p.addAnnotation(la); | |
| 113 } | |
| 114 return c; | 109 return c; |
| 115 } | 110 } |
| 116 | 111 |
| 117 | 112 |
| 118 protected String getXAxisLabel() { | 113 protected String getXAxisLabel() { |
| 132 msg(I18N_2YAXIS_LABEL, I18N_2YAXIS_LABEL_DEFAULT)); | 127 msg(I18N_2YAXIS_LABEL, I18N_2YAXIS_LABEL_DEFAULT)); |
| 133 | 128 |
| 134 plot.setRangeAxis(1, qAxis); | 129 plot.setRangeAxis(1, qAxis); |
| 135 | 130 |
| 136 invertXAxis(plot.getDomainAxis()); | 131 invertXAxis(plot.getDomainAxis()); |
| 132 } | |
| 133 | |
| 134 | |
| 135 /** | |
| 136 * Remove all annotations from plot and re-insert them at an approximately | |
| 137 * okay position. The followed approach is naive but side-effect free. | |
| 138 */ | |
| 139 protected void redoAnnotations(XYPlot plot, ValueAxis axis) { | |
| 140 plot.clearAnnotations(); | |
| 141 ValueAxis yAxis = plot.getRangeAxis(); | |
| 142 float posY = 140.f; | |
| 143 if (yAxis != null) { | |
| 144 posY = (float) yAxis.getRange().getLowerBound(); | |
| 145 // Lets add some (1%) space between Text and Axis . | |
| 146 posY += 0.1f * (yAxis.getRange().getUpperBound() | |
| 147 - yAxis.getRange().getLowerBound()); | |
| 148 } | |
| 149 double freeFrom = axis.getRange().getLowerBound(); | |
| 150 //logger.warn("Axis lower Bound: " + freeFrom); | |
| 151 | |
| 152 // Assuming ordered annotations. | |
| 153 for (Annotation a: annotations) { | |
| 154 float posX = (float) a.getRange().getA().doubleValue(); | |
| 155 if (posX < freeFrom) { continue; } | |
| 156 String text = a.getPosition().getValue(); | |
| 157 | |
| 158 XYTextAnnotation ta = new XYTextAnnotation(text, posX, posY); | |
| 159 double rotation = 270.0f * (Math.PI / 180.0f); | |
| 160 ta.setRotationAngle(rotation); | |
| 161 ta.setRotationAnchor(TextAnchor.CENTER_LEFT); | |
| 162 ta.setTextAnchor(TextAnchor.CENTER_LEFT); | |
| 163 plot.getRenderer().addAnnotation(ta); | |
| 164 XYLineAnnotation la = new XYLineAnnotation(posX, 0, posX, posY); | |
| 165 plot.getRenderer().addAnnotation(la); | |
| 166 freeFrom += 2.0; | |
| 167 } | |
| 137 } | 168 } |
| 138 | 169 |
| 139 | 170 |
| 140 /** | 171 /** |
| 141 * This method overrides the XYChartGenerators zoomY method to include the 0 | 172 * This method overrides the XYChartGenerators zoomY method to include the 0 |