Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/DischargeGenerator.java @ 8338:ac7cb15e1946

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Scale second W-axis in cm according to first axis, which is expanded relative to the data, and set bounds for zooming purposes (plus a bit of cleanup in DiagramGenerator).
author "Tom Gottfried <tom@intevation.de>"
date Fri, 26 Sep 2014 18:23:45 +0200
parents e87a993c6611
children a82f24b773e7
rev   line source
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1 /* Copyright (C) 2014 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8 package org.dive4elements.river.exports;
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9
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10 import java.awt.Font;
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11
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12 import org.apache.log4j.Logger;
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13 import org.dive4elements.river.exports.injector.InjectorConstants;
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14 import org.dive4elements.river.jfree.AxisDataset;
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15 import org.dive4elements.river.jfree.DoubleBounds;
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16 import org.jfree.chart.axis.NumberAxis;
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17 import org.jfree.chart.plot.XYPlot;
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18 import org.jfree.data.Range;
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19
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20 public class DischargeGenerator
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21 extends DiagramGenerator
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22 implements InjectorConstants
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23 {
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24 private static Logger log = Logger.getLogger(DischargeGenerator.class);
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25
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26 public DischargeGenerator() {
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27 }
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28
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29 @Override
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30 public void addDatasets(XYPlot plot) {
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31 super.addDatasets(plot);
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32
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33 Object pnp = context.getContextValue(PNP);
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34 if (!(pnp instanceof Number)) {
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35 return;
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36 }
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37
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38 double pnpValue = ((Number)pnp).doubleValue();
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39
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40 int wAxisIndex = diagramAttributes.getAxisIndex("W");
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41 if (wAxisIndex == -1) {
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42 log.warn("No W axis found.");
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43 return;
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44 }
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45
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46 AxisDataset data = datasets.get(wAxisIndex);
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47 if (data == null) {
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48 // No W axis
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49 return;
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50 }
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51
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52 if (data.getRange() == null) {
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53 // No active datasets
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54 return;
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55 }
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56
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57 Range axisRange = inCm(
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58 plot.getRangeAxis(wAxisIndex).getRange(),
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59 pnpValue
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60 );
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61 Range dataRange = inCm(data.getRange(), pnpValue);
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62
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63 // Do we have an index for W in cm?
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64 NumberAxis wInCmAxis = createWinCMAxis(wAxisIndex);
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65 wInCmAxis.setRange(axisRange);
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66
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67 int wInCmAxisIndex = plot.getRangeAxisCount();
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68 plot.setRangeAxis(wInCmAxisIndex, wInCmAxis);
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69 combineYBounds(new DoubleBounds(dataRange), wInCmAxisIndex);
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70 }
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71
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72 private static Range inCm(Range r, double pnpValue) {
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73 double l = r.getLowerBound();
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74 double u = r.getUpperBound();
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75 l = (l - pnpValue)*100d;
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76 u = (u - pnpValue)*100d;
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77 return new Range(l, u);
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78 }
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79
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80 private NumberAxis createWinCMAxis(int wAxisIndex) {
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81
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82 Font labelFont = new Font(
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83 DEFAULT_FONT_NAME,
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84 Font.BOLD,
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85 getYAxisFontSize(wAxisIndex));
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86
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87 String axisName = "W.in.cm";
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88
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89 // TODO: I18N
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90 IdentifiableNumberAxis axis = new IdentifiableNumberAxis(
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91 axisName, "W.in.cm");
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92
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93 axis.setAutoRangeIncludesZero(false);
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94 axis.setLabelFont(labelFont);
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95 axis.setTickLabelFont(labelFont);
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96
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97 return axis;
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98 }
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99 }
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100 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org