Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FlowVelocityFacet.java @ 4626:5b551e3a58d5

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Add start and end km of current chart zoomlevel to the context and use these values to calculate the moving average.
author Raimund Renkert <rrenkert@intevation.de>
date Mon, 03 Dec 2012 17:10:08 +0100
parents cc6323401643
children 63368dcc3f94
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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12 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
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13
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14 import org.apache.log4j.Logger;
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15
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cc6323401643 Cosmetics: Removed some WSP, obsolete imports. Documentation added.
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16
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17 /**
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18 * Facet of a FlowVelocity curve.
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19 */
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20 public class FlowVelocityFacet extends DataFacet {
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21
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22 private static Logger logger = Logger.getLogger(FlowVelocityFacet.class);
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23
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24 public FlowVelocityFacet() {
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25 // required for clone operation deepCopy()
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26 }
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27
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28
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29 public FlowVelocityFacet(
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30 int idx,
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31 String name,
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32 String description,
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33 ComputeType type,
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34 String stateId,
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35 String hash
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36 ) {
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37 super(idx, name, description, type, hash, stateId);
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38 }
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39
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40
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41 public Object getData(Artifact artifact, CallContext context) {
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42 logger.debug("Get data for flow velocity at index: " + index);
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43
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Raimund Renkert <rrenkert@intevation.de>
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44 Double start = (Double)context.getContextValue("startkm");
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Raimund Renkert <rrenkert@intevation.de>
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45 Double end = (Double)context.getContextValue("endkm");
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46 FLYSArtifact flys = (FLYSArtifact) artifact;
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47
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48 CalculationResult res = (CalculationResult)
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49 flys.compute(context, hash, stateId, type, false);
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50
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51 FlowVelocityData[] data = (FlowVelocityData[]) res.getData();
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52 if(start != null && end != null) {
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53 FLYSContext fc = (FLYSContext)context.globalContext();
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54 ZoomScale scales = (ZoomScale)fc.get("zoomscale");
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55 RiverAccess access = new RiverAccess((FLYSArtifact)artifact);
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56 String river = access.getRiver();
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57
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58 double radius = scales.getRadius(river, start, end);
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59 FlowVelocityData oldData = data[index];
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60 FlowVelocityData newData = new FlowVelocityData();
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61 double[][] q = oldData.getQPoints();
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62 double[][] totalV = MovingAverage.weighted(oldData.getTotalChannelPoints(), radius);
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63 double[][] mainV = MovingAverage.weighted(oldData.getMainChannelPoints(), radius);
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64 double[][] tau = MovingAverage.weighted(oldData.getTauPoints(), radius);
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65 for(int j = 0; j < q[0].length; j++) {
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66 newData.addKM(q[0][j]);
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67 newData.addQ(q[1][j]);
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68 newData.addTauMain(tau[1][j]);
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69 newData.addVMain(mainV[1][j]);
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70 newData.addVTotal(totalV[1][j]);
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71 }
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72 return newData;
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73 }
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74 return data[index];
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75 }
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76
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77
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78 /** Copy deeply. */
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79 @Override
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80 public Facet deepCopy() {
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81 FlowVelocityFacet copy = new FlowVelocityFacet();
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82 copy.set(this);
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83 copy.type = type;
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84 copy.hash = hash;
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85 copy.stateId = stateId;
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86 return copy;
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87 }
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88 }
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89 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org