public void initSimpleGraph(Graph g) {
// 6 | 4
// 5 |
// | 6
// 4 | 5
// 3 |
// 2 | 1
// 1 | 3
// 0 | 2
// -1 | 0
// ---|-------------------
// |-2 -1 0 1 2 3 4
//
NodeAccess na = g.getNodeAccess();
na.setNode(0, -1, -2);
na.setNode(1, 2, -1);
na.setNode(2, 0, 1);
na.setNode(3, 1, 2);
na.setNode(4, 6, 1);
na.setNode(5, 4, 4);
na.setNode(6, 4.5, -0.5);
g.edge(0, 1, 3.5, true);
g.edge(0, 2, 2.5, true);
g.edge(2, 3, 1, true);
g.edge(3, 4, 3.2, true);
g.edge(1, 4, 2.4, true);
g.edge(3, 5, 1.5, true);
// make sure 6 is connected
g.edge(6, 4, 1.2, true);
}
@Test
public void testDifferentEdgeFilter() {
Graph g = new GraphBuilder(encodingManager).levelGraphCreate();
g.edge(4, 3, 10, true);
g.edge(3, 6, 10, true);
g.edge(4, 5, 10, true);
g.edge(5, 6, 10, true);
AlgorithmPreparation prep = prepareGraph(g);
DijkstraOneToMany algo = (DijkstraOneToMany) prep.createAlgo();
algo.setEdgeFilter(
new EdgeFilter() {
@Override
public boolean accept(EdgeIteratorState iter) {
return iter.getAdjNode() != 5;
}
});
Path p = algo.calcPath(4, 6);
assertEquals(Helper.createTList(4, 3, 6), p.calcNodes());
// important call!
algo.clear();
algo.setEdgeFilter(
new EdgeFilter() {
@Override
public boolean accept(EdgeIteratorState iter) {
return iter.getAdjNode() != 3;
}
});
p = algo.calcPath(4, 6);
assertEquals(Helper.createTList(4, 5, 6), p.calcNodes());
}
@Test
public void testCopy() {
Graph g = initUnsorted(createGraph());
EdgeIteratorState eb = g.edge(6, 5, 11, true);
eb.setWayGeometry(Helper.createPointList(12, 10, -1, 3));
LevelGraph lg = new GraphBuilder(encodingManager).levelGraphCreate();
GHUtility.copyTo(g, lg);
eb = lg.getEdgeProps(eb.getEdge(), 6);
assertEquals(Helper.createPointList(-1, 3, 12, 10), eb.getWayGeometry());
assertEquals(0, lg.getLevel(0));
assertEquals(0, lg.getLevel(1));
assertEquals(0, lg.getLatitude(0), 1e-6);
assertEquals(1, lg.getLongitude(0), 1e-6);
assertEquals(2.5, lg.getLatitude(1), 1e-6);
assertEquals(4.5, lg.getLongitude(1), 1e-6);
assertEquals(9, lg.getNodes());
EdgeIterator iter = lg.createEdgeExplorer().setBaseNode(8);
iter.next();
assertEquals(2.05, iter.getDistance(), 1e-6);
assertEquals("11", BitUtil.toBitString(iter.getFlags(), 2));
iter.next();
assertEquals(0.5, iter.getDistance(), 1e-6);
assertEquals("11", BitUtil.toBitString(iter.getFlags(), 2));
iter = lg.createEdgeExplorer().setBaseNode(7);
iter.next();
assertEquals(2.1, iter.getDistance(), 1e-6);
assertEquals("01", BitUtil.toBitString(iter.getFlags(), 2));
assertTrue(iter.next());
assertEquals(0.7, iter.getDistance(), 1e-6);
}
int addEdge(int fromIndex, int toIndex, PointList pointList, int flags) {
double towerNodeDistance = 0;
double prevLat = pointList.latitude(0);
double prevLon = pointList.longitude(0);
double lat;
double lon;
PointList pillarNodes = new PointList(pointList.size() - 2);
int nodes = pointList.size();
for (int i = 1; i < nodes; i++) {
lat = pointList.latitude(i);
lon = pointList.longitude(i);
towerNodeDistance += callback.calcDist(prevLat, prevLon, lat, lon);
prevLat = lat;
prevLon = lon;
if (nodes > 2 && i < nodes - 1) pillarNodes.add(lat, lon);
}
if (towerNodeDistance == 0) {
// As investigation shows often two paths should have crossed via one identical point
// but end up in two very close points. later this will be removed/fixed while
// removing short edges where one node is of degree 2
zeroCounter++;
towerNodeDistance = 0.0001;
}
EdgeIterator iter = g.edge(fromIndex, toIndex, towerNodeDistance, flags);
if (nodes > 2) iter.wayGeometry(pillarNodes);
return nodes;
}
// 8
// |
// 6->0->1->3->7
// | |
// | v
// 10<-2---4<---5
// 9
public static void initDirected1(Graph g) {
g.edge(0, 8, 1, true);
g.edge(0, 1, 1, false);
g.edge(1, 3, 1, false);
g.edge(3, 7, 1, false);
g.edge(3, 5, 1, false);
g.edge(5, 4, 1, false);
g.edge(4, 2, 1, true);
g.edge(2, 9, 1, false);
g.edge(2, 10, 1, false);
g.edge(2, 6, 1, true);
g.edge(6, 0, 1, false);
}
Graph initUnsorted(Graph g) {
g.setNode(0, 0, 1);
g.setNode(1, 2.5, 4.5);
g.setNode(2, 4.5, 4.5);
g.setNode(3, 3, 0.5);
g.setNode(4, 2.8, 2.8);
g.setNode(5, 4.2, 1.6);
g.setNode(6, 2.3, 2.2);
g.setNode(7, 5, 1.5);
g.setNode(8, 4.6, 4);
g.edge(8, 2, 0.5, true);
g.edge(7, 3, 2.1, false);
g.edge(1, 0, 3.9, true);
g.edge(7, 5, 0.7, true);
g.edge(1, 2, 1.9, true);
g.edge(8, 1, 2.05, true);
return g;
}
@Test
public void testSortDirected() {
Graph g = createGraph();
g.setNode(0, 0, 1);
g.setNode(1, 2.5, 2);
g.setNode(2, 3.5, 3);
g.edge(0, 1, 1.1, false);
g.edge(2, 1, 1.1, false);
GHUtility.sortDFS(g, createGraph());
}
@Test
public void testCannotCalculateSP2() {
Graph g = createGraph(10);
g.edge(0, 1, 1, false);
g.edge(1, 2, 1, false);
DijkstraBidirectionRef db = new DijkstraBidirectionRef(g);
db.addSkipNode(1);
Path p = db.calcPath(0, 2);
assertFalse(p.found());
}
@Test
public void testExtract() {
Graph g = createGraph();
g.edge(1, 2, 10, true);
PathBidirRef pw = new PathBidirRef(g, carEncoder);
EdgeExplorer explorer = g.createEdgeExplorer(carOutEdges);
EdgeIterator iter = explorer.setBaseNode(1);
iter.next();
pw.edgeEntry = new EdgeEntry(iter.getEdge(), 2, 0);
pw.edgeEntry.parent = new EdgeEntry(EdgeIterator.NO_EDGE, 1, 10);
pw.edgeTo = new EdgeEntry(EdgeIterator.NO_EDGE, 2, 0);
Path p = pw.extract();
assertEquals(Helper.createTList(1, 2), p.calcNodes());
assertEquals(10, p.getDistance(), 1e-4);
}
// 0-1-2-3-4
// | / |
// | 8 |
// \ / /
// 7-6-5-/
void initBiGraph(Graph graph) {
graph.edge(0, 1, 100, true);
graph.edge(1, 2, 1, true);
graph.edge(2, 3, 1, true);
graph.edge(3, 4, 1, true);
graph.edge(4, 5, 25, true);
graph.edge(5, 6, 25, true);
graph.edge(6, 7, 5, true);
graph.edge(7, 0, 5, true);
graph.edge(3, 8, 20, true);
graph.edge(8, 6, 20, true);
}
// 0-1-.....-9-10
// | ^ \
// | | |
// 17-16-...-11<-/
public static void initDirected2(Graph g) {
g.edge(0, 1, 1, true);
g.edge(1, 2, 1, true);
g.edge(2, 3, 1, true);
g.edge(3, 4, 1, true);
g.edge(4, 5, 1, true);
g.edge(5, 6, 1, true);
g.edge(6, 7, 1, true);
g.edge(7, 8, 1, true);
g.edge(8, 9, 1, true);
g.edge(9, 10, 1, true);
g.edge(10, 11, 1, false);
g.edge(11, 12, 1, true);
g.edge(11, 9, 3, false);
g.edge(12, 13, 1, true);
g.edge(13, 14, 1, true);
g.edge(14, 15, 1, true);
g.edge(15, 16, 1, true);
g.edge(16, 17, 1, true);
g.edge(17, 0, 1, true);
}
void initRoundaboutGraph(Graph g) {
// roundabout:
// 16-0-9-10--11 12<-13
// \ \ / \
// 17 \| 7-8-..
// -15-1--2--3--4 / /
// / \-5->6/ /
// -14 \________/
g.edge(16, 0, 1, true);
g.edge(0, 9, 1, true);
g.edge(0, 17, 1, true);
g.edge(9, 10, 1, true);
g.edge(10, 11, 1, true);
g.edge(11, 28, 1, true);
g.edge(28, 29, 1, true);
g.edge(29, 30, 1, true);
g.edge(30, 31, 1, true);
g.edge(31, 4, 1, true);
g.edge(17, 1, 1, true);
g.edge(15, 1, 1, true);
g.edge(14, 1, 1, true);
g.edge(14, 18, 1, true);
g.edge(18, 19, 1, true);
g.edge(19, 20, 1, true);
g.edge(20, 15, 1, true);
g.edge(19, 21, 1, true);
g.edge(21, 16, 1, true);
g.edge(1, 2, 1, true);
g.edge(2, 3, 1, true);
g.edge(3, 4, 1, true);
g.edge(4, 5, 1, false);
g.edge(5, 6, 1, false);
g.edge(6, 7, 1, false);
g.edge(7, 13, 1, false);
g.edge(13, 12, 1, false);
g.edge(12, 4, 1, false);
g.edge(7, 8, 1, true);
g.edge(8, 22, 1, true);
g.edge(22, 23, 1, true);
g.edge(23, 24, 1, true);
g.edge(24, 25, 1, true);
g.edge(25, 27, 1, true);
g.edge(27, 5, 1, true);
g.edge(25, 26, 1, false);
g.edge(26, 25, 1, false);
}
public Graph createSampleGraph(EncodingManager encodingManager) {
Graph graph = AbstractLocationIndexTester.this.createGHStorage(encodingManager);
// length does not matter here but lat,lon and outgoing edges do!
//
// lat /--------\
// 5 o- p--------\ q
// \ /-----\-----n | |
// 4 k /--l-- m/
// / \ j \ |
// 3 | g \ h---i /
// | \ / /
// 2 e---------f-- /
// / \-d
// 1 /--b-- \
// | \--------c
// 0 a
//
// lon: 0 1 2 3 4 5
int a0 = 0;
NodeAccess na = graph.getNodeAccess();
na.setNode(0, 0, 1.0001f);
int b1 = 1;
na.setNode(1, 1, 2);
int c2 = 2;
na.setNode(2, 0.5f, 4.5f);
int d3 = 3;
na.setNode(3, 1.5f, 3.8f);
int e4 = 4;
na.setNode(4, 2.01f, 0.5f);
int f5 = 5;
na.setNode(5, 2, 3);
int g6 = 6;
na.setNode(6, 3, 1.5f);
int h7 = 7;
na.setNode(7, 2.99f, 3.01f);
int i8 = 8;
na.setNode(8, 3, 4);
int j9 = 9;
na.setNode(9, 3.3f, 2.2f);
int k10 = 10;
na.setNode(10, 4, 1);
int l11 = 11;
na.setNode(11, 4.1f, 3);
int m12 = 12;
na.setNode(12, 4, 4.5f);
int n13 = 13;
na.setNode(13, 4.5f, 4.1f);
int o14 = 14;
na.setNode(14, 5, 0);
int p15 = 15;
na.setNode(15, 4.9f, 2.5f);
int q16 = 16;
na.setNode(16, 5, 5);
// => 17 locations
graph.edge(a0, b1, 1, true);
graph.edge(c2, b1, 1, true);
graph.edge(c2, d3, 1, true);
graph.edge(f5, b1, 1, true);
graph.edge(e4, f5, 1, true);
graph.edge(m12, d3, 1, true);
graph.edge(e4, k10, 1, true);
graph.edge(f5, d3, 1, true);
graph.edge(f5, i8, 1, true);
graph.edge(f5, j9, 1, true);
graph.edge(k10, g6, 1, true);
graph.edge(j9, l11, 1, true);
graph.edge(i8, l11, 1, true);
graph.edge(i8, h7, 1, true);
graph.edge(k10, n13, 1, true);
graph.edge(k10, o14, 1, true);
graph.edge(l11, p15, 1, true);
graph.edge(m12, p15, 1, true);
graph.edge(q16, p15, 1, true);
graph.edge(q16, m12, 1, true);
return graph;
}