[6380] | 1 | // License: GPL. For details, see LICENSE file.
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[1] | 2 | package org.openstreetmap.josm.data.osm;
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| 3 |
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[11397] | 4 | import java.awt.geom.Area;
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[6830] | 5 | import java.util.Collection;
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[12031] | 6 | import java.util.List;
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[10827] | 7 | import java.util.Objects;
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[6830] | 8 | import java.util.Set;
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| 9 | import java.util.TreeSet;
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[10658] | 10 | import java.util.function.Predicate;
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[6830] | 11 |
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[4126] | 12 | import org.openstreetmap.josm.Main;
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[1636] | 13 | import org.openstreetmap.josm.data.coor.EastNorth;
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[71] | 14 | import org.openstreetmap.josm.data.coor.LatLon;
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[4100] | 15 | import org.openstreetmap.josm.data.osm.visitor.PrimitiveVisitor;
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[8] | 16 | import org.openstreetmap.josm.data.osm.visitor.Visitor;
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[12161] | 17 | import org.openstreetmap.josm.data.projection.Projecting;
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[4126] | 18 | import org.openstreetmap.josm.data.projection.Projections;
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[6556] | 19 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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| 20 | import org.openstreetmap.josm.tools.Utils;
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[1] | 21 |
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| 22 | /**
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| 23 | * One node data, consisting of one world coordinate waypoint.
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| 24 | *
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| 25 | * @author imi
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| 26 | */
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[4098] | 27 | public final class Node extends OsmPrimitive implements INode {
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[1169] | 28 |
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[4126] | 29 | /*
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| 30 | * We "inline" lat/lon rather than using a LatLon-object => reduces memory footprint
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| 31 | */
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[4229] | 32 | private double lat = Double.NaN;
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| 33 | private double lon = Double.NaN;
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[1640] | 34 |
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[4126] | 35 | /*
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| 36 | * the cached projected coordinates
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| 37 | */
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| 38 | private double east = Double.NaN;
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| 39 | private double north = Double.NaN;
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[10827] | 40 | /**
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| 41 | * The cache key to use for {@link #east} and {@link #north}.
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| 42 | */
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| 43 | private Object eastNorthCacheKey;
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[4126] | 44 |
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[7828] | 45 | /**
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| 46 | * Determines if this node has valid coordinates.
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| 47 | * @return {@code true} if this node has valid coordinates
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| 48 | * @since 7828
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| 49 | */
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[12161] | 50 | @Override
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[8512] | 51 | public boolean isLatLonKnown() {
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[12161] | 52 | // We cannot use default implementation - if we remove this implementation, we will break binary compatibility.
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[4229] | 53 | return !Double.isNaN(lat) && !Double.isNaN(lon);
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[4126] | 54 | }
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| 55 |
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[4098] | 56 | @Override
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[8512] | 57 | public void setCoor(LatLon coor) {
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[5349] | 58 | updateCoor(coor, null);
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[3382] | 59 | }
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| 60 |
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[4098] | 61 | @Override
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[8512] | 62 | public void setEastNorth(EastNorth eastNorth) {
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[5349] | 63 | updateCoor(null, eastNorth);
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[3382] | 64 | }
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| 65 |
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| 66 | private void updateCoor(LatLon coor, EastNorth eastNorth) {
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| 67 | if (getDataSet() != null) {
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| 68 | boolean locked = writeLock();
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| 69 | try {
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| 70 | getDataSet().fireNodeMoved(this, coor, eastNorth);
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| 71 | } finally {
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| 72 | writeUnlock(locked);
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[1750] | 73 | }
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[3382] | 74 | } else {
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| 75 | setCoorInternal(coor, eastNorth);
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[1731] | 76 | }
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[1636] | 77 | }
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[1640] | 78 |
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[10919] | 79 | /**
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| 80 | * Returns lat/lon coordinates of this node, or {@code null} unless {@link #isLatLonKnown()}
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| 81 | * @return lat/lon coordinates of this node, or {@code null} unless {@link #isLatLonKnown()}
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| 82 | */
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[4098] | 83 | @Override
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[8512] | 84 | public LatLon getCoor() {
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[12161] | 85 | if (!isLatLonKnown()) {
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| 86 | return null;
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| 87 | } else {
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| 88 | return new LatLon(lat, lon);
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| 89 | }
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[1640] | 90 | }
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| 91 |
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[4098] | 92 | @Override
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[12161] | 93 | public double lat() {
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| 94 | return lat;
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[10827] | 95 | }
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| 96 |
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[12161] | 97 | @Override
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| 98 | public double lon() {
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| 99 | return lon;
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| 100 | }
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| 101 |
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[12725] | 102 | /**
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| 103 | * Replies the projected east/north coordinates.
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| 104 | * <p>
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[12729] | 105 | * Uses the {@link Main#getProjection() global projection} to project the lat/lon-coordinates.
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[12753] | 106 | * <p>
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| 107 | * Method {@link org.openstreetmap.josm.data.coor.ILatLon#getEastNorth()} of
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| 108 | * implemented interface <code>ILatLon</code> is deprecated, but this method is not.
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| 109 | * @return the east north coordinates or {@code null} if {@link #isLatLonKnown()}
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| 110 | * is false.
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[12725] | 111 | */
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[12753] | 112 | @SuppressWarnings("deprecation")
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[12726] | 113 | @Override
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[12725] | 114 | public EastNorth getEastNorth() {
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| 115 | return getEastNorth(Main.getProjection());
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| 116 | }
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| 117 |
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[12161] | 118 | @Override
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| 119 | public EastNorth getEastNorth(Projecting projection) {
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[4126] | 120 | if (!isLatLonKnown()) return null;
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[4229] | 121 |
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[10827] | 122 | if (Double.isNaN(east) || Double.isNaN(north) || !Objects.equals(projection.getCacheKey(), eastNorthCacheKey)) {
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[4126] | 123 | // projected coordinates haven't been calculated yet,
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| 124 | // so fill the cache of the projected node coordinates
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[12167] | 125 | EastNorth en = projection.latlon2eastNorth(this);
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[4126] | 126 | this.east = en.east();
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| 127 | this.north = en.north();
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[10827] | 128 | this.eastNorthCacheKey = projection.getCacheKey();
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[4126] | 129 | }
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| 130 | return new EastNorth(east, north);
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[1640] | 131 | }
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| 132 |
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[3166] | 133 | /**
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| 134 | * To be used only by Dataset.reindexNode
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[9243] | 135 | * @param coor lat/lon
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| 136 | * @param eastNorth east/north
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[3166] | 137 | */
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[10763] | 138 | void setCoorInternal(LatLon coor, EastNorth eastNorth) {
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[4126] | 139 | if (coor != null) {
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| 140 | this.lat = coor.lat();
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| 141 | this.lon = coor.lon();
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| 142 | invalidateEastNorthCache();
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| 143 | } else if (eastNorth != null) {
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| 144 | LatLon ll = Projections.inverseProject(eastNorth);
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| 145 | this.lat = ll.lat();
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| 146 | this.lon = ll.lon();
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| 147 | this.east = eastNorth.east();
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| 148 | this.north = eastNorth.north();
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[10827] | 149 | this.eastNorthCacheKey = Main.getProjection().getCacheKey();
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[5349] | 150 | } else {
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| 151 | this.lat = Double.NaN;
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| 152 | this.lon = Double.NaN;
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| 153 | invalidateEastNorthCache();
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[5935] | 154 | if (isVisible()) {
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| 155 | setIncomplete(true);
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| 156 | }
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[5349] | 157 | }
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[3166] | 158 | }
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| 159 |
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[2284] | 160 | protected Node(long id, boolean allowNegative) {
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| 161 | super(id, allowNegative);
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| 162 | }
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| 163 |
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[2070] | 164 | /**
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[5410] | 165 | * Constructs a new local {@code Node} with id 0.
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[2070] | 166 | */
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| 167 | public Node() {
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[2284] | 168 | this(0, false);
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[2070] | 169 | }
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[1722] | 170 |
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[1169] | 171 | /**
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[5410] | 172 | * Constructs an incomplete {@code Node} object with the given id.
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[6830] | 173 | * @param id The id. Must be >= 0
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| 174 | * @throws IllegalArgumentException if id < 0
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[1169] | 175 | */
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[8291] | 176 | public Node(long id) {
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[2284] | 177 | super(id, false);
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[1169] | 178 | }
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[86] | 179 |
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[1169] | 180 | /**
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[5410] | 181 | * Constructs a new {@code Node} with the given id and version.
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[6830] | 182 | * @param id The id. Must be >= 0
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[5410] | 183 | * @param version The version
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[6830] | 184 | * @throws IllegalArgumentException if id < 0
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[2620] | 185 | */
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[8291] | 186 | public Node(long id, int version) {
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[2932] | 187 | super(id, version, false);
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[2620] | 188 | }
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| 189 |
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| 190 | /**
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[5410] | 191 | * Constructs an identical clone of the argument.
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| 192 | * @param clone The node to clone
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[8509] | 193 | * @param clearMetadata If {@code true}, clears the OSM id and other metadata as defined by {@link #clearOsmMetadata}.
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| 194 | * If {@code false}, does nothing
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[1169] | 195 | */
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[6140] | 196 | public Node(Node clone, boolean clearMetadata) {
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[2748] | 197 | super(clone.getUniqueId(), true /* allow negative IDs */);
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[1169] | 198 | cloneFrom(clone);
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[6140] | 199 | if (clearMetadata) {
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| 200 | clearOsmMetadata();
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[2410] | 201 | }
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[1169] | 202 | }
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[66] | 203 |
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[2410] | 204 | /**
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[5410] | 205 | * Constructs an identical clone of the argument (including the id).
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| 206 | * @param clone The node to clone, including its id
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[2410] | 207 | */
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| 208 | public Node(Node clone) {
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| 209 | this(clone, false);
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| 210 | }
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| 211 |
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[5410] | 212 | /**
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| 213 | * Constructs a new {@code Node} with the given lat/lon with id 0.
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| 214 | * @param latlon The {@link LatLon} coordinates
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| 215 | */
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[1169] | 216 | public Node(LatLon latlon) {
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[2284] | 217 | super(0, false);
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[1636] | 218 | setCoor(latlon);
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[1169] | 219 | }
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[86] | 220 |
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[5410] | 221 | /**
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| 222 | * Constructs a new {@code Node} with the given east/north with id 0.
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| 223 | * @param eastNorth The {@link EastNorth} coordinates
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| 224 | */
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[1722] | 225 | public Node(EastNorth eastNorth) {
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[2284] | 226 | super(0, false);
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[1722] | 227 | setEastNorth(eastNorth);
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| 228 | }
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| 229 |
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[3430] | 230 | @Override
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| 231 | void setDataset(DataSet dataSet) {
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| 232 | super.setDataset(dataSet);
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[7828] | 233 | if (!isIncomplete() && isVisible() && !isLatLonKnown())
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[5694] | 234 | throw new DataIntegrityProblemException("Complete node with null coordinates: " + toString());
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[3430] | 235 | }
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| 236 |
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[5410] | 237 | @Override
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[6009] | 238 | public void accept(Visitor visitor) {
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[1169] | 239 | visitor.visit(this);
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| 240 | }
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[86] | 241 |
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[5410] | 242 | @Override
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[6009] | 243 | public void accept(PrimitiveVisitor visitor) {
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[4100] | 244 | visitor.visit(this);
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| 245 | }
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| 246 |
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[5410] | 247 | @Override
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| 248 | public void cloneFrom(OsmPrimitive osm) {
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[11383] | 249 | if (!(osm instanceof Node))
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| 250 | throw new IllegalArgumentException("Not a node: " + osm);
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[3348] | 251 | boolean locked = writeLock();
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| 252 | try {
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| 253 | super.cloneFrom(osm);
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[8510] | 254 | setCoor(((Node) osm).getCoor());
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[3348] | 255 | } finally {
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| 256 | writeUnlock(locked);
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| 257 | }
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[1169] | 258 | }
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| 259 |
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[2417] | 260 | /**
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| 261 | * Merges the technical and semantical attributes from <code>other</code> onto this.
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[2512] | 262 | *
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[2417] | 263 | * Both this and other must be new, or both must be assigned an OSM ID. If both this and <code>other</code>
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| 264 | * have an assigend OSM id, the IDs have to be the same.
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[2512] | 265 | *
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[2417] | 266 | * @param other the other primitive. Must not be null.
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[8291] | 267 | * @throws IllegalArgumentException if other is null.
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| 268 | * @throws DataIntegrityProblemException if either this is new and other is not, or other is new and this is not
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| 269 | * @throws DataIntegrityProblemException if other is new and other.getId() != this.getId()
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[2417] | 270 | */
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| 271 | @Override
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| 272 | public void mergeFrom(OsmPrimitive other) {
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[11383] | 273 | if (!(other instanceof Node))
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| 274 | throw new IllegalArgumentException("Not a node: " + other);
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[3348] | 275 | boolean locked = writeLock();
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| 276 | try {
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| 277 | super.mergeFrom(other);
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| 278 | if (!other.isIncomplete()) {
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[8510] | 279 | setCoor(((Node) other).getCoor());
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[3348] | 280 | }
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| 281 | } finally {
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| 282 | writeUnlock(locked);
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[2417] | 283 | }
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| 284 | }
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| 285 |
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[11383] | 286 | @Override
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| 287 | public void load(PrimitiveData data) {
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| 288 | if (!(data instanceof NodeData))
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| 289 | throw new IllegalArgumentException("Not a node data: " + data);
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[3348] | 290 | boolean locked = writeLock();
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| 291 | try {
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| 292 | super.load(data);
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[8510] | 293 | setCoor(((NodeData) data).getCoor());
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[3348] | 294 | } finally {
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| 295 | writeUnlock(locked);
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| 296 | }
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[2284] | 297 | }
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| 298 |
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[11383] | 299 | @Override
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| 300 | public NodeData save() {
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[2284] | 301 | NodeData data = new NodeData();
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| 302 | saveCommonAttributes(data);
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[2612] | 303 | if (!isIncomplete()) {
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| 304 | data.setCoor(getCoor());
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| 305 | }
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[2284] | 306 | return data;
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| 307 | }
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| 308 |
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[5410] | 309 | @Override
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| 310 | public String toString() {
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[4126] | 311 | String coorDesc = isLatLonKnown() ? "lat="+lat+",lon="+lon : "";
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[10378] | 312 | return "{Node id=" + getUniqueId() + " version=" + getVersion() + ' ' + getFlagsAsString() + ' ' + coorDesc+'}';
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[1169] | 313 | }
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| 314 |
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[1690] | 315 | @Override
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[9979] | 316 | public boolean hasEqualSemanticAttributes(OsmPrimitive other, boolean testInterestingTagsOnly) {
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[11292] | 317 | return (other instanceof Node)
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| 318 | && hasEqualSemanticFlags(other)
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| 319 | && hasEqualCoordinates((Node) other)
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| 320 | && super.hasEqualSemanticAttributes(other, testInterestingTagsOnly);
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[1690] | 321 | }
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| 322 |
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[11292] | 323 | private boolean hasEqualCoordinates(Node other) {
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| 324 | final LatLon c1 = getCoor();
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| 325 | final LatLon c2 = other.getCoor();
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| 326 | return (c1 == null && c2 == null) || (c1 != null && c2 != null && c1.equalsEpsilon(c2));
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| 327 | }
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| 328 |
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[4098] | 329 | @Override
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[1169] | 330 | public int compareTo(OsmPrimitive o) {
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[8365] | 331 | return o instanceof Node ? Long.compare(getUniqueId(), o.getUniqueId()) : 1;
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[1169] | 332 | }
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[755] | 333 |
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[1690] | 334 | @Override
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[1990] | 335 | public String getDisplayName(NameFormatter formatter) {
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| 336 | return formatter.format(this);
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| 337 | }
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[2399] | 338 |
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[4098] | 339 | @Override
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[2399] | 340 | public OsmPrimitiveType getType() {
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| 341 | return OsmPrimitiveType.NODE;
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| 342 | }
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[2427] | 343 |
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[2437] | 344 | @Override
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[2427] | 345 | public BBox getBBox() {
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[11269] | 346 | return new BBox(lon, lat);
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[2427] | 347 | }
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[2437] | 348 |
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| 349 | @Override
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[11269] | 350 | protected void addToBBox(BBox box, Set<PrimitiveId> visited) {
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| 351 | box.add(lon, lat);
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| 352 | }
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| 353 |
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| 354 | @Override
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[2437] | 355 | public void updatePosition() {
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[9989] | 356 | // Do nothing
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[2437] | 357 | }
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[6069] | 358 |
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[5410] | 359 | @Override
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| 360 | public boolean isDrawable() {
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| 361 | // Not possible to draw a node without coordinates.
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| 362 | return super.isDrawable() && isLatLonKnown();
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| 363 | }
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[3159] | 364 |
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[5249] | 365 | /**
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| 366 | * Check whether this node connects 2 ways.
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[6069] | 367 | *
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[5249] | 368 | * @return true if isReferredByWays(2) returns true
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[6069] | 369 | * @see #isReferredByWays(int)
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[5249] | 370 | */
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[3180] | 371 | public boolean isConnectionNode() {
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[3653] | 372 | return isReferredByWays(2);
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[3159] | 373 | }
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[3253] | 374 |
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[5410] | 375 | /**
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[4126] | 376 | * Invoke to invalidate the internal cache of projected east/north coordinates.
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| 377 | * Coordinates are reprojected on demand when the {@link #getEastNorth()} is invoked
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| 378 | * next time.
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| 379 | */
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| 380 | public void invalidateEastNorthCache() {
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| 381 | this.east = Double.NaN;
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| 382 | this.north = Double.NaN;
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[10827] | 383 | this.eastNorthCacheKey = null;
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[4126] | 384 | }
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[6491] | 385 |
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| 386 | @Override
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| 387 | public boolean concernsArea() {
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| 388 | // A node cannot be an area
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| 389 | return false;
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| 390 | }
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[6556] | 391 |
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| 392 | /**
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| 393 | * Tests whether {@code this} node is connected to {@code otherNode} via at most {@code hops} nodes
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| 394 | * matching the {@code predicate} (which may be {@code null} to consider all nodes).
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[9243] | 395 | * @param otherNodes other nodes
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| 396 | * @param hops number of hops
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| 397 | * @param predicate predicate to match
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| 398 | * @return {@code true} if {@code this} node mets the conditions
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[6556] | 399 | */
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| 400 | public boolean isConnectedTo(final Collection<Node> otherNodes, final int hops, Predicate<Node> predicate) {
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| 401 | CheckParameterUtil.ensureParameterNotNull(otherNodes);
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| 402 | CheckParameterUtil.ensureThat(!otherNodes.isEmpty(), "otherNodes must not be empty!");
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| 403 | CheckParameterUtil.ensureThat(hops >= 0, "hops must be non-negative!");
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| 404 | return hops == 0
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| 405 | ? isConnectedTo(otherNodes, hops, predicate, null)
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| 406 | : isConnectedTo(otherNodes, hops, predicate, new TreeSet<Node>());
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| 407 | }
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| 408 |
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| 409 | private boolean isConnectedTo(final Collection<Node> otherNodes, final int hops, Predicate<Node> predicate, Set<Node> visited) {
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| 410 | if (otherNodes.contains(this)) {
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| 411 | return true;
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| 412 | }
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[11796] | 413 | if (hops > 0 && visited != null) {
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[6556] | 414 | visited.add(this);
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| 415 | for (final Way w : Utils.filteredCollection(this.getReferrers(), Way.class)) {
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| 416 | for (final Node n : w.getNodes()) {
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| 417 | final boolean containsN = visited.contains(n);
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| 418 | visited.add(n);
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[10658] | 419 | if (!containsN && (predicate == null || predicate.test(n))
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[8540] | 420 | && n.isConnectedTo(otherNodes, hops - 1, predicate, visited)) {
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[6556] | 421 | return true;
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| 422 | }
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| 423 | }
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| 424 | }
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| 425 | }
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| 426 | return false;
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| 427 | }
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[6639] | 428 |
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| 429 | @Override
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| 430 | public boolean isOutsideDownloadArea() {
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[11397] | 431 | if (isNewOrUndeleted() || getDataSet() == null)
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| 432 | return false;
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| 433 | Area area = getDataSet().getDataSourceArea();
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| 434 | if (area == null)
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| 435 | return false;
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| 436 | LatLon coor = getCoor();
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| 437 | return coor != null && !coor.isIn(area);
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[6639] | 438 | }
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[12031] | 439 |
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| 440 | /**
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| 441 | * Replies the set of referring ways.
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| 442 | * @return the set of referring ways
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| 443 | * @since 12031
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| 444 | */
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| 445 | public List<Way> getParentWays() {
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| 446 | return getFilteredList(getReferrers(), Way.class);
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| 447 | }
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[1] | 448 | }
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