Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/exports/ChartArea.java @ 9445:ff0e5386de70

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Variant for inverted y axis added
author mschaefer
date Tue, 21 Aug 2018 14:16:15 +0200
parents c086b06b81e5
children
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
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2 * Software engineering by Intevation GmbH
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Sascha L. Teichmann <teichmann@intevation.de>
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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Sascha L. Teichmann <teichmann@intevation.de>
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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
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Sascha L. Teichmann <teichmann@intevation.de>
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9 package org.dive4elements.river.exports;
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10
1dca41dba135 Move annotation code to base class ChartGenerator
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11 import org.jfree.chart.axis.ValueAxis;
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12 import org.jfree.chart.axis.LogarithmicAxis;
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13
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14 /** Two Ranges that span a rectangular area. */
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15 public class ChartArea {
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16 protected double xLower;
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17 protected double xUpper;
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18 protected double xLength;
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19 protected double yLower;
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20 protected double yUpper;
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21 protected double yLength;
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22 protected boolean xIsLog;
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23 protected boolean yIsLog;
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24
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25 public ChartArea(ValueAxis axisX, ValueAxis axisY) {
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26 this.xLower = axisX.getRange().getLowerBound();
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27 this.xUpper = axisX.getRange().getUpperBound();
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28 this.xLength= axisX.getRange().getLength();
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mschaefer
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29 if (axisY.isInverted()) {
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30 this.yLower = axisY.getRange().getUpperBound();
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31 this.yUpper = axisY.getRange().getLowerBound();
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32 this.yLength = -axisY.getRange().getLength();
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33 }
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34 else {
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35 this.yLower = axisY.getRange().getLowerBound();
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36 this.yUpper = axisY.getRange().getUpperBound();
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37 this.yLength = axisY.getRange().getLength();
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38 }
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"Tom Gottfried <tom@intevation.de>"
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39 this.xIsLog = axisX instanceof LogarithmicAxis;
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40 this.yIsLog = axisY instanceof LogarithmicAxis;
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41 }
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42
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43 public double ofLeft(double percent) {
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44 if (xIsLog) {
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45 return Math.pow(10,
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46 Math.log10(xLower)
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47 + Math.log10(xUpper / xLower) * percent
c086b06b81e5 Make ChartArea and thus annotations sensible for logarithmic axes (plus some minor cleanup).
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48 );
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49 }
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50 return xLower + xLength * percent;
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51 }
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52
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53 public double ofRight(double percent) {
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54 if (xIsLog) {
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55 return Math.pow(10,
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56 Math.log10(xUpper)
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57 - Math.log10(xUpper / xLower) * percent
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58 );
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59 }
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60 return xUpper - xLength * percent;
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61 }
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62
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63 public double ofGround(double percent) {
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64 if (yIsLog) {
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65 return Math.pow(10,
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66 Math.log10(yLower)
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67 + Math.log10(yUpper / yLower) * percent
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68 );
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69 }
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70 return yLower + yLength * percent;
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71 }
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72
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73 public double atTop() {
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74 return yUpper;
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75 }
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76
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77 public double atGround() {
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78 return yLower;
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79 }
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80
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81 public double atRight() {
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82 return xUpper;
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83 }
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84
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85 public double atLeft() {
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86 return xLower;
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87 }
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88
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89 public double above(double percent, double base) {
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90 if (yIsLog) {
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91 return Math.pow(10,
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92 Math.log10(base)
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93 + Math.log10(yUpper / yLower) * percent
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94 );
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95 }
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96 return base + yLength * percent;
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97 }
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98 }
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99 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org