Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/access/ComputationRangeAccess.java @ 9132:8cc192731c7d

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WQSelect can now handle distance-only data
author gernotbelger
date Wed, 06 Jun 2018 14:24:51 +0200
parents e3519c3e7a0a
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rev   line source
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10 package org.dive4elements.river.artifacts.access;
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11
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12 import org.dive4elements.artifactdatabase.data.StateData;
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13 import org.dive4elements.river.artifacts.D4EArtifact;
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14 import org.dive4elements.river.artifacts.states.ComputationRangeState;
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15 import org.dive4elements.river.utils.DoubleUtil;
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16
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17 /**
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18 * Access to data handled by {@link ComputationRangeState}.
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19 *
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20 * @author Gernot Belger
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21 */
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22 public class ComputationRangeAccess extends RangeAccess {
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23
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24 public ComputationRangeAccess(final D4EArtifact artifact) {
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25 super(artifact);
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26 }
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27
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28 public double[] getFromToStep() {
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29
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30 if (!isRange())
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31 return null;
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32
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33 final double[] fromTo = getKmRange();
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34
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35 if (fromTo == null)
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36 return null;
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37
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38 final StateData dStep = getArtifact().getData("ld_step");
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39 if (dStep == null)
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40 return null;
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41
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42 final double[] result = new double[3];
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43 result[0] = fromTo[0];
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44 result[1] = fromTo[1];
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45
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46 try {
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47 final String dStepValue = (String) dStep.getValue();
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48 result[2] = DoubleUtil.round(Double.parseDouble(dStepValue) / 1000d);
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49 return result;
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50 }
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51 catch (final NumberFormatException nfe) {
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52 nfe.printStackTrace();
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53 return null;
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54 }
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55 }
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56
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57 public final double getStartKm() {
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58
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59 final KM_MODE mode = getKmRangeMode();
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60 switch (mode) {
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61 case RANGE:
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62 case DISTANCE_ONLY:
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63 return getFrom();
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64
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65 case LOCATIONS:
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66 case NONE:
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67 default:
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68 final double[] locations = getLocations();
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69 if( locations != null && locations.length > 0 )
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70 // TODO: this is the old behaviour, but what happens if the user enters the values unsorted?
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71 return locations[0];
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72
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73 return Double.NaN;
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74 }
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75 }
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76
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77 public double[] getKms() {
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78
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79 if (isRange())
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80 return getKmSteps();
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81
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82 return getLocations();
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83 }
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84 }
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