Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalCrossSectionChart.java @ 446:f5a041000357
Connected vertical cross section with chart generation.
gnv-artifacts/trunk@494 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Fri, 01 Jan 2010 12:08:05 +0000 |
| parents | |
| children | c7ca2fce041f |
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| 445:f42ed4f10b79 | 446:f5a041000357 |
|---|---|
| 1 package de.intevation.gnv.chart; | |
| 2 | |
| 3 import java.util.Locale; | |
| 4 | |
| 5 import java.awt.Color; | |
| 6 import java.awt.Paint; | |
| 7 | |
| 8 import de.intevation.gnv.math.AttributedXYColumns; | |
| 9 | |
| 10 import de.intevation.gnv.jfreechart.PolygonDataset; | |
| 11 import de.intevation.gnv.jfreechart.PolygonPlot; | |
| 12 import de.intevation.gnv.jfreechart.PolygonRenderer; | |
| 13 | |
| 14 import de.intevation.gnv.raster.Palette; | |
| 15 | |
| 16 import org.jfree.chart.JFreeChart; | |
| 17 | |
| 18 import org.jfree.chart.plot.PlotOrientation; | |
| 19 | |
| 20 import org.jfree.chart.axis.ValueAxis; | |
| 21 import org.jfree.chart.axis.NumberAxis; | |
| 22 import org.jfree.chart.axis.SymbolAxis; | |
| 23 | |
| 24 import org.jfree.chart.title.PaintScaleLegend; | |
| 25 | |
| 26 import org.jfree.chart.renderer.LookupPaintScale; | |
| 27 | |
| 28 import org.jfree.ui.RectangleEdge; | |
| 29 import org.jfree.ui.RectangleInsets; | |
| 30 | |
| 31 /** | |
| 32 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de) | |
| 33 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) | |
| 34 */ | |
| 35 public class VerticalCrossSectionChart | |
| 36 implements Chart | |
| 37 { | |
| 38 public static final class PalettePaintLookup | |
| 39 implements PolygonRenderer.PaintLookup | |
| 40 { | |
| 41 private Palette palette; | |
| 42 | |
| 43 public PalettePaintLookup(Palette palette) { | |
| 44 this.palette = palette; | |
| 45 } | |
| 46 | |
| 47 public Paint getPaint(int index) { | |
| 48 return index < 0 | |
| 49 ? Color.black | |
| 50 : palette.getColor(index); | |
| 51 } | |
| 52 } // class PalettePaintLookup | |
| 53 | |
| 54 protected JFreeChart chart; | |
| 55 | |
| 56 protected AttributedXYColumns columns; | |
| 57 protected Palette palette; | |
| 58 protected Locale locale; | |
| 59 | |
| 60 public VerticalCrossSectionChart() { | |
| 61 } | |
| 62 | |
| 63 public VerticalCrossSectionChart( | |
| 64 AttributedXYColumns columns, | |
| 65 Palette palette, | |
| 66 Locale locale | |
| 67 ) { | |
| 68 this.columns = columns; | |
| 69 this.palette = palette; | |
| 70 this.locale = locale; | |
| 71 } | |
| 72 | |
| 73 protected JFreeChart createChart() { | |
| 74 | |
| 75 String title = "Neues 2D-Diagramm"; | |
| 76 String xAxis = "x-Achse des Diagramms"; | |
| 77 String yAxis = "y-Achse des Diagramms"; | |
| 78 boolean legendB = false; | |
| 79 boolean tooltips = false; | |
| 80 boolean urls = false; | |
| 81 | |
| 82 PlotOrientation po = PlotOrientation.HORIZONTAL; | |
| 83 PolygonDataset data = columns.getPolygonDataset(); | |
| 84 | |
| 85 PolygonRenderer renderer = new PolygonRenderer( | |
| 86 new PalettePaintLookup(palette)); | |
| 87 | |
| 88 ValueAxis domainAxis = new NumberAxis(xAxis); | |
| 89 ValueAxis rangeAxis = new NumberAxis(yAxis); | |
| 90 | |
| 91 PolygonPlot plot = new PolygonPlot( | |
| 92 data, | |
| 93 renderer, | |
| 94 domainAxis, | |
| 95 rangeAxis, | |
| 96 null); | |
| 97 | |
| 98 int colors = palette.getSize(); | |
| 99 LookupPaintScale lookupPaint = | |
| 100 new LookupPaintScale(-0.5d, colors-0.5d, Color.white); | |
| 101 | |
| 102 Color color = null; | |
| 103 | |
| 104 String [] labels = new String[colors]; | |
| 105 for (int i = 0; i < colors; i++) { | |
| 106 color = palette.getColor(colors-1-i); | |
| 107 labels[i] = palette.getEntryByIndex(colors-1-i).getDescription(); | |
| 108 lookupPaint.add(i-0.5d, color); | |
| 109 } | |
| 110 | |
| 111 JFreeChart chart = new JFreeChart( | |
| 112 title, | |
| 113 JFreeChart.DEFAULT_TITLE_FONT, | |
| 114 plot, | |
| 115 legendB); | |
| 116 | |
| 117 chart.removeLegend(); | |
| 118 | |
| 119 SymbolAxis scale = new SymbolAxis("Temperatur", labels); | |
| 120 scale.setRange(-1.5d, colors+0.5d); | |
| 121 scale.setGridBandsVisible(false); | |
| 122 scale.setPlot(plot); | |
| 123 | |
| 124 PaintScaleLegend legend = new PaintScaleLegend( | |
| 125 lookupPaint, scale); | |
| 126 legend.setMargin(new RectangleInsets(3d, 10d, 3d, 10d)); | |
| 127 legend.setPosition(RectangleEdge.LEFT); | |
| 128 legend.setAxisOffset(5d); | |
| 129 | |
| 130 chart.addSubtitle(legend); | |
| 131 | |
| 132 return chart; | |
| 133 } | |
| 134 | |
| 135 public JFreeChart generateChart() { | |
| 136 if (chart == null) { | |
| 137 chart = createChart(); | |
| 138 } | |
| 139 return chart; | |
| 140 } | |
| 141 } | |
| 142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |