Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FlowVelocityFacet.java @ 4655:cd44d28d0fbc

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Move the access to artifact data to the Access object Use BedHeightAccess class to receive the data from the artifact. This abstracts the data access from the actual artifact.
author Björn Ricks <bjoern.ricks@intevation.de>
date Tue, 11 Dec 2012 09:44:04 +0100
parents 63368dcc3f94
children 87c938d082d6
rev   line source
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d8444fcb4e44 Create chart facets for flow velocity calculation and a chart generator for this.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.flys.artifacts.model;
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2
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3 import de.intevation.artifactdatabase.state.Facet;
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4
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5 import de.intevation.artifacts.Artifact;
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6 import de.intevation.artifacts.CallContext;
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7
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8 import de.intevation.flys.artifacts.FLYSArtifact;
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9
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10 import de.intevation.flys.artifacts.access.RiverAccess;
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11 import de.intevation.flys.artifacts.context.FLYSContext;
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63368dcc3f94 Moved MovingAverage into math package
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12
63368dcc3f94 Moved MovingAverage into math package
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13 import de.intevation.flys.artifacts.math.MovingAverage;
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14 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
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15
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16 import org.apache.log4j.Logger;
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17
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18 /**
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19 * Facet of a FlowVelocity curve.
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20 */
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21 public class FlowVelocityFacet extends DataFacet {
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22
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23 private static Logger logger = Logger.getLogger(FlowVelocityFacet.class);
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24
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25 public FlowVelocityFacet() {
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26 // required for clone operation deepCopy()
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27 }
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29
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30 public FlowVelocityFacet(
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31 int idx,
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32 String name,
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33 String description,
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34 ComputeType type,
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35 String stateId,
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36 String hash
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37 ) {
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38 super(idx, name, description, type, hash, stateId);
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39 }
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40
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41
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42 public Object getData(Artifact artifact, CallContext context) {
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43 logger.debug("Get data for flow velocity at index: " + index);
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44
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45 Double start = (Double)context.getContextValue("startkm");
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Raimund Renkert <rrenkert@intevation.de>
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46 Double end = (Double)context.getContextValue("endkm");
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47 FLYSArtifact flys = (FLYSArtifact) artifact;
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48
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49 CalculationResult res = (CalculationResult)
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50 flys.compute(context, hash, stateId, type, false);
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51
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52 FlowVelocityData[] data = (FlowVelocityData[]) res.getData();
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53 if(start != null && end != null) {
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54 FLYSContext fc = (FLYSContext)context.globalContext();
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55 ZoomScale scales = (ZoomScale)fc.get("zoomscale");
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56 RiverAccess access = new RiverAccess((FLYSArtifact)artifact);
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57 String river = access.getRiver();
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58
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59 double radius = scales.getRadius(river, start, end);
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60 FlowVelocityData oldData = data[index];
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61 FlowVelocityData newData = new FlowVelocityData();
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62 double[][] q = oldData.getQPoints();
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63 double[][] totalV = MovingAverage.weighted(oldData.getTotalChannelPoints(), radius);
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64 double[][] mainV = MovingAverage.weighted(oldData.getMainChannelPoints(), radius);
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65 double[][] tau = MovingAverage.weighted(oldData.getTauPoints(), radius);
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66 for(int j = 0; j < q[0].length; j++) {
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67 newData.addKM(q[0][j]);
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68 newData.addQ(q[1][j]);
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69 newData.addTauMain(tau[1][j]);
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70 newData.addVMain(mainV[1][j]);
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71 newData.addVTotal(totalV[1][j]);
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72 }
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73 return newData;
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74 }
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75 return data[index];
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76 }
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77
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78
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79 /** Copy deeply. */
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80 @Override
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81 public Facet deepCopy() {
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82 FlowVelocityFacet copy = new FlowVelocityFacet();
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83 copy.set(this);
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84 copy.type = type;
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85 copy.hash = hash;
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86 copy.stateId = stateId;
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87 return copy;
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88 }
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89 }
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90 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org