1 | package org.openstreetmap.josm.data.osm;
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2 |
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3 | import org.openstreetmap.josm.data.osm.visitor.Visitor;
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4 |
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5 |
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6 | /**
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7 | * One way segment consisting of a pair of nodes (from/to)
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8 | *
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9 | * @author imi
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10 | */
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11 | public class Segment extends OsmPrimitive {
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12 |
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13 | /**
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14 | * The starting node of the segment
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15 | */
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16 | public Node from;
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17 |
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18 | /**
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19 | * The ending node of the segment
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20 | */
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21 | public Node to;
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22 |
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23 | /**
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24 | * If set to true, this object is incomplete, which means only the id
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25 | * and type is known (type is the objects instance class)
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26 | */
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27 | public boolean incomplete;
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28 |
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29 | /**
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30 | * Create an identical clone of the argument (including the id)
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31 | */
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32 | public Segment(Segment clone) {
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33 | cloneFrom(clone);
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34 | }
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35 |
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36 | /**
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37 | * Create an segment from the given starting and ending node
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38 | * @param from Starting node of the segment.
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39 | * @param to Ending node of the segment.
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40 | */
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41 | public Segment(Node from, Node to) {
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42 | this.from = from;
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43 | this.to = to;
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44 | incomplete = false;
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45 | }
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46 |
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47 | public Segment(long id) {
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48 | this.id = id;
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49 | incomplete = true;
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50 | }
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51 |
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52 | @Override public void visit(Visitor visitor) {
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53 | visitor.visit(this);
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54 | }
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55 |
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56 | /**
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57 | * @return <code>true</code>, if the <code>ls</code> occupy
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58 | * exactly the same place as <code>this</code>.
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59 | */
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60 | public boolean equalPlace(Segment ls) {
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61 | if (equals(ls))
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62 | return true;
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63 | if (incomplete || ls.incomplete)
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64 | return incomplete == ls.incomplete;
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65 | return ((from.coor.equals(ls.from.coor) && to.coor.equals(ls.to.coor)) ||
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66 | (from.coor.equals(ls.to.coor) && to.coor.equals(ls.from.coor)));
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67 | }
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68 |
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69 | @Override public void cloneFrom(OsmPrimitive osm) {
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70 | super.cloneFrom(osm);
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71 | Segment ls = ((Segment)osm);
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72 | from = ls.from;
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73 | to = ls.to;
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74 | incomplete = ls.incomplete;
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75 | }
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76 |
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77 | @Override public String toString() {
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78 | return "{Segment id="+id+" from="+from+" to="+to+"}";
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79 | }
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80 |
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81 | @Override public boolean realEqual(OsmPrimitive osm) {
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82 | return osm instanceof Segment ?
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83 | super.realEqual(osm) &&
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84 | from.equals(((Segment)osm).from) &&
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85 | to.equals(((Segment)osm).to) : false;
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86 | }
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87 | }
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