Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/states/sq/StaticSQRelationFacet.java @ 9726:0a5239a1e46e 3.2.x
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author | Tom Gottfried <tom@intevation.de> |
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date | Wed, 02 Mar 2022 10:26:50 +0100 |
parents | e4606eae8ea5 |
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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.artifacts.states.sq; |
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10 |
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11 import java.util.List; |
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12 |
9726 | 13 import org.apache.logging.log4j.Logger; |
14 import org.apache.logging.log4j.LogManager; | |
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15 |
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16 import org.dive4elements.artifactdatabase.state.DefaultFacet; |
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17 import org.dive4elements.artifactdatabase.state.Facet; |
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18 import org.dive4elements.artifacts.Artifact; |
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19 import org.dive4elements.artifacts.CallContext; |
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20 import org.dive4elements.artifacts.DataProvider; |
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21 import org.dive4elements.river.artifacts.math.fitting.Function; |
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22 import org.dive4elements.river.artifacts.math.fitting.FunctionFactory; |
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23 import org.dive4elements.river.artifacts.model.sq.SQFunction; |
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24 import org.dive4elements.river.artifacts.model.sq.StaticSQRelation; |
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25 |
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26 |
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27 public class StaticSQRelationFacet |
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28 extends DefaultFacet |
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29 implements Facet |
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30 { |
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31 public static final String FUNCTION = "sq-pow"; |
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32 |
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33 private StaticSQRelation relation; |
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34 |
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35 private static final Logger log = |
9726 | 36 LogManager.getLogger(StaticSQRelationFacet.class); |
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37 |
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38 public StaticSQRelationFacet( |
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39 int ndx, |
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40 String name, |
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41 String description, |
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42 StaticSQRelation relation) { |
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43 super(ndx, name, description); |
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44 this.relation = relation; |
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45 } |
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46 |
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47 @Override |
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48 public Object getData(Artifact artifact, CallContext context) { |
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49 double qmax = relation.getQmax(); |
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50 double[] coeffs = new double[] {relation.getA(), relation.getB()}; |
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51 Function func = FunctionFactory.getInstance().getFunction(FUNCTION); |
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52 org.dive4elements.river.artifacts.math.Function function = |
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53 func.instantiate(coeffs); |
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54 |
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55 /* Figure out a good starting point by checking for calculated |
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56 * SQ Curves and using their starting point */ |
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57 |
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58 // this is ok because we are a DefaultFacet and not a DataFacet |
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59 // and so we are not registred with Mr. Blackboard |
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60 List<DataProvider> providers = context.getDataProvider(name); |
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61 |
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62 double startingPoint = Double.MAX_VALUE; |
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63 |
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64 for (DataProvider dp: providers) { |
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65 SQFunction other = (SQFunction) dp.provideData( |
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66 name, |
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67 null, |
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68 context); |
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69 if (other == null) { |
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70 // name is not really unique here but it's our only key |
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71 // should not happen anyhow. |
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72 log.error("Did not get data from: " + name); |
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73 continue; |
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74 } |
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75 startingPoint = Math.min(other.getMinQ(), startingPoint); |
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76 } |
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77 if (startingPoint == Double.MAX_VALUE) { |
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78 startingPoint = 0; |
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79 } |
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80 |
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81 SQFunction sqf = new SQFunction(function, startingPoint, qmax); |
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82 return sqf; |
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83 } |
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84 |
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85 @Override |
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86 public Facet deepCopy() { |
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87 StaticSQRelationFacet copy = |
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88 new StaticSQRelationFacet(index, name, description, relation); |
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89 copy.set(this); |
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90 return copy; |
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91 } |
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92 } |