Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/ZoomScale.java @ 5818:a4ff4167be1e

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Request feature info on all layers and show it as html if the server does not return valid gml. Non queryable layers produce an error message when the request fails. This is good enough
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 24 Apr 2013 17:33:27 +0200
parents e8c6fbed889b
children
rev   line source
4618
e8c6fbed889b New class storing configuration about zoom dependent filter levels.
Raimund Renkert <rrenkert@intevation.de>
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1 package de.intevation.flys.artifacts.model;
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2
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3 import java.util.HashMap;
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4 import java.util.Map;
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5 import java.util.Set;
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6 import java.util.TreeMap;
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7
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8 import org.apache.log4j.Logger;
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9
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10 import de.intevation.flys.artifacts.math.Linear;
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11
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12
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13 public class ZoomScale
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14 {
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15 private static Logger logger = Logger.getLogger(ZoomScale.class);
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16
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17 private HashMap<String, TreeMap<Double, Double>> rivers;
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18
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19 public ZoomScale() {
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20 this.rivers = new HashMap<String, TreeMap<Double, Double>>();
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21 }
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22
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23 public ZoomScale(String river) {
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24 this();
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25 rivers.put(river, new TreeMap<Double, Double>());
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26 }
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27
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28 public double getRadius(String river, double lower, double upper) {
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29 double range = Math.abs(upper) - Math.abs(lower);
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30 TreeMap<Double, Double> ranges = rivers.get(river);
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31 if (ranges == null) {
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32 return 0.001;
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33 }
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34 Map.Entry<Double, Double> next = ranges.higherEntry(range);
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35 Map.Entry<Double, Double> prev = ranges.lowerEntry(range);
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36 double x0 = 0d;
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37 double x1 = 0d;
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38 double y0 = 0d;
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39 double y1 = 0d;
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40 if (prev == null && next != null) {
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41 x1 = next.getKey();
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42 y1 = next.getValue();
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43 }
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44 else if (prev != null && next == null) {
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45 return prev.getValue();
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46 }
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47 else {
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48 x0 = prev.getKey();
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49 x1 = next.getKey();
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50 y0 = prev.getValue();
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51 y1 = next.getValue();
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52 }
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53 return Linear.linear(range, x0, x1, y0, y1);
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54 }
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55
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56 public void addRiver(String river) {
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57 if (!this.rivers.containsKey(river)) {
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58 this.rivers.put(river, new TreeMap<Double, Double>());
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59 }
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60 }
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61
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62 public Set<String> getRivers() {
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63 return this.rivers.keySet();
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64 }
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65
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66 public void addRange(String river, double range, double radius) {
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67 if (this.rivers.containsKey(river)) {
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68 this.rivers.get(river).put(range, radius);
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69 }
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70 else {
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71 this.rivers.put(river, new TreeMap<Double, Double>());
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72 this.rivers.get(river).put(range, radius);
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73 }
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74 }
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75 }
http://dive4elements.wald.intevation.org