Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/FixingsColumn.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 af13ceeba52a
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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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 :
http://dive4elements.wald.intevation.org