Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/FixingsColumn.java @ 8860:28df64078f27
Merge with 0862ea5d66baf60e7eee496d130a35157cc9ec12
author | gernotbelger |
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date | Fri, 19 Jan 2018 11:23:42 +0100 |
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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; |
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10 |
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11 import org.dive4elements.river.artifacts.math.Linear; |
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12 |
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13 import java.util.Arrays; |
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14 |
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15 import java.io.Serializable; |
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16 |
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17 public class FixingsColumn |
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18 implements Serializable |
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19 { |
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20 protected double [] kms; |
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21 protected double [] ws; |
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22 |
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23 protected QRangeTree qs; |
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24 |
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25 public FixingsColumn() { |
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26 } |
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27 |
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28 public FixingsColumn( |
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29 double [] kms, |
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30 double [] ws, |
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31 QRangeTree qs |
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32 ) { |
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33 this.kms = kms; |
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34 this.ws = ws; |
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35 this.qs = qs; |
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36 } |
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37 |
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38 public boolean getW(double km, double [] w) { |
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39 return getW(km, w, 0); |
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40 } |
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41 |
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42 public boolean getW(double km, double [] w, int index) { |
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43 |
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44 if (kms.length == 0 || km < kms[0] || km > kms[kms.length-1]) { |
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45 w[index] = Double.NaN; |
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46 return true; |
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47 } |
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48 |
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49 int idx = Arrays.binarySearch(kms, km); |
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50 |
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51 if (idx >= 0) { |
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52 w[index] = ws[idx]; |
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53 return true; |
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54 } |
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55 |
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56 idx = -idx - 1; |
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57 |
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58 w[index] = Linear.linear(km, kms[idx-1], kms[idx], ws[idx-1], ws[idx]); |
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59 return false; |
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60 } |
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61 |
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62 public double getQ(double km) { |
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63 return qs.findQ(km); |
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64 } |
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65 |
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66 public QRangeTree getQRanges() { |
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67 return qs; |
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68 } |
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69 } |
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70 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |