Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/jfree/DoubleBounds.java @ 4897:9c388de4b4d5

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Builder: Doc, comments.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Tue, 29 Jan 2013 11:49:37 +0100
parents 2f6d4f92d628
children e1ba8273df07
rev   line source
2327
07c39470e2cb Added new model classes that should be used for axes range adaption later.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.jfree;
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2
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3
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4 import org.jfree.chart.axis.ValueAxis;
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5 import org.jfree.data.Range;
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6
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7
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8 /**
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9 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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10 */
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11 public class DoubleBounds implements Bounds {
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12
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13 protected double lower;
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14 protected double upper;
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15
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16
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17 /**
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18 * Default constructor. <b>A DoubleBounds has always set lower &lt;
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19 * upper!</b>
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20 */
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21 public DoubleBounds(double lower, double upper) {
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22 this.lower = Math.min(lower, upper);
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23 this.upper = Math.max(lower, upper);
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24 }
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25
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26
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27 @Override
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28 public Number getLower() {
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29 return Double.valueOf(lower);
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30 }
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31
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32
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33 @Override
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34 public Number getUpper() {
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35 return Double.valueOf(upper);
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36 }
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37
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38
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39 @Override
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40 public void applyBounds(ValueAxis axis) {
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41 axis.setRange(new Range(lower, upper));
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42 }
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43
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44
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7b14d00bca8a Cosmetics, docs.
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45 /**
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46 * Set extended range to ValueAxis.
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47 * @param percent how many percent to extend (in each direction,
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48 * thus 10 percent on [0,100] -> [-10,110].
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49 */
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50 @Override
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51 public void applyBounds(ValueAxis axis, int percent) {
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52 double space = (upper - lower) / 100 * percent;
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53 axis.setRange(new Range(lower-space, upper+space));
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54 }
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55
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56
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57 @Override
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58 public Bounds combine(Bounds bounds) {
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59 if (bounds == null) {
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60 return this;
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61 }
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62
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63 DoubleBounds other = (DoubleBounds) bounds;
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64
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65 double otherLower = other.getLower().doubleValue();
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66 double otherUpper = other.getUpper().doubleValue();
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67
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68 return new DoubleBounds(
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69 otherLower < lower ? otherLower : lower,
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70 otherUpper > upper ? otherUpper : upper);
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71 }
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72
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73
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74 @Override
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75 public String toString() {
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76 return "DoubleBounds=[" + lower + " ; " + upper + "]";
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77 }
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78 }
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79 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org