Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/jfree/TimeBounds.java @ 6955:94cb1845c667

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(issue1452) Coalesce to zero to avoid NaN arithmetic.
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 30 Aug 2013 15:45:14 +0200
parents af13ceeba52a
children
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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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.jfree;
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10
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11 import java.util.Date;
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12
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13 import org.jfree.chart.axis.DateAxis;
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14 import org.jfree.chart.axis.ValueAxis;
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15
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16
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17 /**
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18 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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19 */
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20 public class TimeBounds implements Bounds {
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21
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22 protected long lower;
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23 protected long upper;
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24
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25
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26 public TimeBounds(long lower, long upper) {
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27 this.lower = lower;
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28 this.upper = upper;
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29 }
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31
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32 @Override
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33 public Number getLower() {
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34 return Long.valueOf(lower);
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35 }
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36
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37
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38 public Date getLowerAsDate() {
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39 return new Date(lower);
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40 }
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41
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42
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43 @Override
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44 public Number getUpper() {
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45 return Long.valueOf(upper);
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46 }
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47
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48
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49 public Date getUpperAsDate() {
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50 return new Date(upper);
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51 }
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52
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53
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54 @Override
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55 public void applyBounds(ValueAxis axis) {
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56 DateAxis dateAxis = (DateAxis) axis;
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57
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58 dateAxis.setMinimumDate(new Date(lower));
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59 dateAxis.setMaximumDate(new Date(upper));
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60 }
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61
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62
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63 @Override
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64 public void applyBounds(ValueAxis axis, int percent) {
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65 DateAxis dateAxis = (DateAxis) axis;
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66
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67 long space = (upper - lower) / 100 * percent;
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68
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69 dateAxis.setMinimumDate(new Date(lower-space));
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70 dateAxis.setMaximumDate(new Date(upper+space));
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71 }
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73
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74 @Override
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75 public Bounds combine(Bounds bounds) {
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76 if (bounds == null) {
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77 return this;
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78 }
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79
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80 TimeBounds other = (TimeBounds) bounds;
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81
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82 long otherLower = other.getLower().longValue();
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83 long otherUpper = other.getUpper().longValue();
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84
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85 return new TimeBounds(
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86 otherLower < lower ? otherLower : lower,
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87 otherUpper > upper ? otherUpper : upper);
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88 }
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89
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90
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91 @Override
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92 public String toString() {
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93 return "TimeBounds=["+ getLowerAsDate() + " ; " + getUpperAsDate() +"]";
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94 }
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95 }
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96 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org