Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/exports/ChartArea.java @ 8816:f5e126739c36
min and max must not be equal in LAYER EXTENT in mapfile.
(issue1879) In passing some whitespace cosmetics.
author | Tom Gottfried <tom@intevation.de> |
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date | Tue, 09 May 2017 18:42:56 +0200 |
parents | c086b06b81e5 |
children | ff0e5386de70 |
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1 /* Copyright (C) 2011, 2012, 2013 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 |
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9 package org.dive4elements.river.exports; |
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10 |
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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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29 this.yLower = axisY.getRange().getLowerBound(); |
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30 this.yUpper = axisY.getRange().getUpperBound(); |
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31 this.yLength= axisY.getRange().getLength(); |
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32 this.xIsLog = axisX instanceof LogarithmicAxis; |
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33 this.yIsLog = axisY instanceof LogarithmicAxis; |
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34 } |
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35 |
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36 public double ofLeft(double percent) { |
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37 if (xIsLog) { |
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38 return Math.pow(10, |
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39 Math.log10(xLower) |
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40 + Math.log10(xUpper / xLower) * percent |
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41 ); |
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42 } |
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43 return xLower + xLength * percent; |
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44 } |
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45 |
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46 public double ofRight(double percent) { |
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47 if (xIsLog) { |
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48 return Math.pow(10, |
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49 Math.log10(xUpper) |
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50 - Math.log10(xUpper / xLower) * percent |
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51 ); |
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52 } |
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53 return xUpper - xLength * percent; |
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54 } |
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55 |
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56 public double ofGround(double percent) { |
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57 if (yIsLog) { |
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58 return Math.pow(10, |
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59 Math.log10(yLower) |
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60 + Math.log10(yUpper / yLower) * percent |
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61 ); |
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62 } |
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63 return yLower + yLength * percent; |
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64 } |
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65 |
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66 public double atTop() { |
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67 return yUpper; |
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68 } |
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69 |
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70 public double atGround() { |
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71 return yLower; |
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72 } |
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73 |
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74 public double atRight() { |
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75 return xUpper; |
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76 } |
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77 |
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78 public double atLeft() { |
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79 return xLower; |
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80 } |
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81 |
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82 public double above(double percent, double base) { |
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83 if (yIsLog) { |
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84 return Math.pow(10, |
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85 Math.log10(base) |
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86 + Math.log10(yUpper / yLower) * percent |
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87 ); |
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88 } |
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89 return base + yLength * percent; |
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90 } |
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91 } |
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92 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |