Mercurial > dive4elements > river

comparison flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/MainValuesWFacet.java @ 3468:f37e7e8907cb

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merged flys-artifacts/2.8.1
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:39 +0200
parents 0f7abd95c6e2
children 35a6c9a49a76
comparison
equal deleted inserted replaced
3387:5ffad8bde8ad 3468:f37e7e8907cb
1 package de.intevation.flys.artifacts.model;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 import org.apache.log4j.Logger;
7
8 import de.intevation.artifacts.Artifact;
9 import de.intevation.artifacts.CallContext;
10 import de.intevation.artifacts.DataProvider;
11
12 import de.intevation.artifactdatabase.state.DefaultFacet;
13
14 import de.intevation.flys.artifacts.MainValuesArtifact;
15 import de.intevation.flys.artifacts.math.Linear;
16 import de.intevation.flys.jfree.FLYSAnnotation;
17 import de.intevation.flys.jfree.StickyAxisAnnotation;
18
19
20 /**
21 * Facet to show Main W Values.
22 */
23 public class MainValuesWFacet
24 extends DefaultFacet
25 implements FacetTypes {
26
27 /** Own logger. */
28 private static Logger logger = Logger.getLogger(RelativePointFacet.class);
29
30 /** Do we want MainValues at Gauge (not interpolated)? */
31 protected boolean isAtGauge;
32
33 /** Trivial Constructor. */
34 public MainValuesWFacet(String name, String description, boolean atGauge) {
35 this.description = description;
36 this.name = name;
37 this.index = 0;
38 this.isAtGauge = atGauge;
39 }
40
41
42 /**
43 * Set the hit-point in W where a line drawn from the axis would hit the
44 * curve in WQDay (if hit).
45 * Employ linear interpolation.
46 */
47 protected static void setHitPoint(WQDay wqday, StickyAxisAnnotation annotation) {
48 int idx = 0;
49 float w = annotation.getPos();
50 boolean wIncreases = wqday.getW(0) < wqday.getW(wqday.size()-1);
51 if (wIncreases) {
52 while (idx < wqday.size() && wqday.getW(idx) < w) {
53 idx++;
54 }
55 }
56 else {
57 idx = wqday.size() -1;
58 while (idx > 0 && wqday.getW(idx) > w) {
59 idx--;
60 }
61 }
62
63 double day = 0d;
64 int mod = (wIncreases) ? -1 : +1;
65 if (idx != 0 && idx < wqday.size()-1-mod) {
66 day = Linear.linear(w, wqday.getW(idx +mod), wqday.getW(idx),
67 wqday.getDay(idx+mod), wqday.getDay(idx));
68 annotation.setHitPoint((float)day);
69 }
70 else {
71 logger.debug("StickyAnnotation does not hit wqday curve");
72 }
73 }
74
75
76 /**
77 * Returns the data this facet requires.
78 *
79 * @param artifact the owner artifact.
80 * @param context the CallContext (ignored).
81 *
82 * @return the data.
83 */
84 @Override
85 public Object getData(Artifact artifact, CallContext context) {
86 MainValuesArtifact mvArtifact = (MainValuesArtifact) artifact;
87
88 List<NamedDouble> ws = mvArtifact.getMainValuesW(isAtGauge);
89 List<StickyAxisAnnotation> xy = new ArrayList<StickyAxisAnnotation>();
90
91 // Find whether a duration curve is on the blackboard.
92 WQDay wqdays = null;
93 List<DataProvider> providers = context.
94 getDataProvider(DurationCurveFacet.BB_DURATIONCURVE);
95 if (providers.size() < 1) {
96 logger.warn("Could not find durationcurve data provider.");
97 }
98 else {
99 wqdays = (WQDay) providers.get(0).provideData(
100 DurationCurveFacet.BB_DURATIONCURVE,
101 null,
102 context);
103 }
104
105 for (NamedDouble w: ws) {
106 StickyAxisAnnotation annotation =
107 new StickyAxisAnnotation(
108 w.getName(),
109 (float) w.getValue(),
110 StickyAxisAnnotation.SimpleAxis.Y_AXIS);
111 xy.add(annotation);
112 if (wqdays != null) {
113 setHitPoint(wqdays, annotation);
114 }
115 }
116
117 return new FLYSAnnotation(description, xy);
118 }
119
120
121 /**
122 * Create a deep copy of this Facet.
123 * @return a deep copy.
124 */
125 @Override
126 public MainValuesWFacet deepCopy() {
127 MainValuesWFacet copy = new MainValuesWFacet(this.name,
128 description, this.isAtGauge);
129 copy.set(this);
130 return copy;
131 }
132 }
133 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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