Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/sq/SQCurveFacet.java @ 5863:4897a58c8746

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River artifacts: Added new copyright headers.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:40:59 +0200
parents 5aa05a7a34b7
children 59ff03ff48f1
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
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.artifacts.model.sq;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import org.dive4elements.artifacts.Artifact;
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14 import org.dive4elements.artifacts.CallContext;
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15
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16 import org.dive4elements.river.artifacts.FLYSArtifact;
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17 import org.dive4elements.river.artifacts.math.fitting.Function;
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18 import org.dive4elements.river.artifacts.math.fitting.FunctionFactory;
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19 import org.dive4elements.river.artifacts.model.CalculationResult;
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20 import org.dive4elements.river.artifacts.model.DataFacet;
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21 import org.dive4elements.river.artifacts.model.FacetTypes;
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22 import org.dive4elements.river.artifacts.model.Parameters;
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23
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24 import org.dive4elements.river.artifacts.states.DefaultState.ComputeType;
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25
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26
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27 /**
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28 * Facet to show the curve in a sq relation.
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29 *
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30 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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31 */
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32 public class SQCurveFacet extends DataFacet implements FacetTypes {
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33
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34 private static final Logger log = Logger.getLogger(SQCurveFacet.class);
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35
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36
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37 public static final String FUNCTION = "sq-pow";
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38
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39
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40 private int fractionIdx;
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41
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42
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43 public SQCurveFacet() {
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44 }
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45
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46
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47 public SQCurveFacet(
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48 int idx,
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49 int fractionIdx,
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50 String name,
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51 String description,
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52 String hash,
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53 String stateId
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54 ) {
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55 super(idx, name, description, ComputeType.ADVANCE, hash, stateId);
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56 this.fractionIdx = fractionIdx;
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57 }
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58
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59
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60 @Override
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61 public Object getData(Artifact artifact, CallContext context) {
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62 log.debug("SQCurveFacet.getData");
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63
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64 if (!(artifact instanceof FLYSArtifact)) {
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65 return null;
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66 }
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67
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68 FLYSArtifact flys = (FLYSArtifact) artifact;
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69
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70 CalculationResult res = (CalculationResult) flys.compute(
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71 context, ComputeType.ADVANCE, false);
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72
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73 SQResult[] results = (SQResult[]) res.getData();
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74 SQFractionResult result = results[index].getFraction(fractionIdx);
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75
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76 Parameters params = result.getParameters();
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77
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78 if (params == null) {
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79 log.debug("no parameters found");
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80 return null;
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81 }
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82
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83 Function func = FunctionFactory.getInstance().getFunction(FUNCTION);
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84 String[] paramNames = func.getParameterNames();
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85
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86 double [] coeffs = params.get(0, paramNames);
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87
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88 if (log.isDebugEnabled()) {
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89 for (int i = 0, N = paramNames.length; i < N; i++) {
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90 log.debug("retrieved parameter " + paramNames[i] +
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91 " = " + coeffs[i]);
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92 }
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93 }
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94
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95 org.dive4elements.river.artifacts.math.Function mf =
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96 func.instantiate(coeffs);
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97
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98 double [] extent = result.getQExtent();
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99 return new SQFunction(mf, extent[0], extent[1]);
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100 }
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101
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102
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103 @Override
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104 public SQCurveFacet deepCopy() {
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105 SQCurveFacet copy = new SQCurveFacet();
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106 copy.set(this);
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107
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108 return copy;
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109 }
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110 }
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111 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org