@Test
public void testUnidirectionalEdgeFilter() {
graph = createGraph();
graph.edge(1, 2, 12, false);
graph.edge(1, 11, 12, false);
graph.edge(11, 1, 12, false);
graph.edge(1, 12, 12, false);
graph.edge(3, 2, 112, false);
EdgeIterator i = carOutExplorer.setBaseNode(2);
assertFalse(i.next());
assertEquals(4, GHUtility.count(carAllExplorer.setBaseNode(1)));
assertEquals(1, GHUtility.count(carInExplorer.setBaseNode(1)));
assertEquals(2, GHUtility.count(carInExplorer.setBaseNode(2)));
assertEquals(0, GHUtility.count(carInExplorer.setBaseNode(3)));
assertEquals(3, GHUtility.count(carOutExplorer.setBaseNode(1)));
assertEquals(0, GHUtility.count(carOutExplorer.setBaseNode(2)));
assertEquals(1, GHUtility.count(carOutExplorer.setBaseNode(3)));
i = carOutExplorer.setBaseNode(3);
i.next();
assertEquals(2, i.getAdjNode());
i = carOutExplorer.setBaseNode(1);
assertTrue(i.next());
assertEquals(12, i.getAdjNode());
assertTrue(i.next());
assertEquals(11, i.getAdjNode());
assertTrue(i.next());
assertEquals(2, i.getAdjNode());
assertFalse(i.next());
}
@Test
public void testGetAllEdges() {
graph = createGraph();
graph.edge(0, 1, 2, true);
graph.edge(3, 1, 1, false);
graph.edge(3, 2, 1, false);
EdgeIterator iter = graph.getAllEdges();
assertTrue(iter.next());
int edgeId = iter.getEdge();
assertEquals(0, iter.getBaseNode());
assertEquals(1, iter.getAdjNode());
assertEquals(2, iter.getDistance(), 1e-6);
assertTrue(iter.next());
int edgeId2 = iter.getEdge();
assertEquals(1, edgeId2 - edgeId);
assertEquals(1, iter.getBaseNode());
assertEquals(3, iter.getAdjNode());
assertTrue(iter.next());
assertEquals(2, iter.getBaseNode());
assertEquals(3, iter.getAdjNode());
assertFalse(iter.next());
}
/** Finds shortcuts, does not change the underlying graph. */
void findShortcuts(ShortcutHandler sch) {
long tmpDegreeCounter = 0;
EdgeIterator incomingEdges = vehicleInExplorer.setBaseNode(sch.getNode());
// collect outgoing nodes (goal-nodes) only once
while (incomingEdges.next()) {
int u_fromNode = incomingEdges.getAdjNode();
// accept only uncontracted nodes
if (g.getLevel(u_fromNode) != 0) continue;
double v_u_weight = incomingEdges.getDistance();
int skippedEdge1 = incomingEdges.getEdge();
int incomingEdgeOrigCount = getOrigEdgeCount(skippedEdge1);
// collect outgoing nodes (goal-nodes) only once
EdgeIterator outgoingEdges = vehicleOutExplorer.setBaseNode(sch.getNode());
// force fresh maps etc as this cannot be determined by from node alone (e.g. same from node
// but different avoidNode)
algo.clear();
tmpDegreeCounter++;
while (outgoingEdges.next()) {
int w_toNode = outgoingEdges.getAdjNode();
// add only uncontracted nodes
if (g.getLevel(w_toNode) != 0 || u_fromNode == w_toNode) {
continue;
}
// Limit weight as ferries or forbidden edges can increase local search too much.
// If we decrease the correct weight we only explore less and introduce more shortcuts.
// I.e. no change to accuracy is made.
double existingDirectWeight = v_u_weight + outgoingEdges.getDistance();
algo.setLimitWeight(existingDirectWeight)
.setLimitVisitedNodes((int) meanDegree * 100)
.setEdgeFilter(levelEdgeFilter.setAvoidNode(sch.getNode()));
dijkstraSW.start();
dijkstraCount++;
int endNode = algo.findEndNode(u_fromNode, w_toNode);
dijkstraSW.stop();
// compare end node as the limit could force dijkstra to finish earlier
if (endNode == w_toNode && algo.getWeight(endNode) <= existingDirectWeight)
// FOUND witness path, so do not add shortcut
continue;
sch.foundShortcut(
u_fromNode,
w_toNode,
existingDirectWeight,
outgoingEdges,
skippedEdge1,
incomingEdgeOrigCount);
}
}
if (sch instanceof AddShortcutHandler) {
// sliding mean value when using "*2" => slower changes
meanDegree = (meanDegree * 2 + tmpDegreeCounter) / 3;
// meanDegree = (meanDegree + tmpDegreeCounter) / 2;
}
}
@Test
public void testSimpleDelete2() {
graph = createGraph();
NodeAccess na = graph.getNodeAccess();
assertEquals(-1, getIdOf(graph, 12));
na.setNode(9, 9, 1);
assertEquals(-1, getIdOf(graph, 12));
na.setNode(11, 11, 1);
na.setNode(12, 12, 1);
// mini subnetwork which gets completely removed:
graph.edge(5, 10, 510, true);
graph.markNodeRemoved(5);
graph.markNodeRemoved(10);
PointList pl = new PointList();
pl.add(1, 2, Double.NaN);
pl.add(1, 3, Double.NaN);
graph.edge(9, 11, 911, true).setWayGeometry(pl);
graph.edge(9, 12, 912, true).setWayGeometry(pl);
assertEquals(13, graph.getNodes());
assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));
// perform deletion
graph.optimize();
assertEquals(11, graph.getNodes());
assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));
int id11 = getIdOf(graph, 11); // is now 10
int id12 = getIdOf(graph, 12); // is now 5
int id9 = getIdOf(graph, 9); // is now 9
assertEquals(
GHUtility.asSet(id12, id11), GHUtility.getNeighbors(carAllExplorer.setBaseNode(id9)));
assertEquals(GHUtility.asSet(id9), GHUtility.getNeighbors(carAllExplorer.setBaseNode(id11)));
assertEquals(GHUtility.asSet(id9), GHUtility.getNeighbors(carAllExplorer.setBaseNode(id12)));
EdgeIterator iter = carAllExplorer.setBaseNode(id9);
assertTrue(iter.next());
assertEquals(id12, iter.getAdjNode());
assertEquals(2, iter.fetchWayGeometry(0).getLongitude(0), 1e-7);
assertTrue(iter.next());
assertEquals(id11, iter.getAdjNode());
assertEquals(2, iter.fetchWayGeometry(0).getLongitude(0), 1e-7);
}
@Test
public void testDetachEdge() {
graph = createGraph();
graph.edge(0, 1, 2, true);
long flags = carEncoder.setProperties(10, true, false);
graph.edge(0, 2, 2, true).setWayGeometry(Helper.createPointList(1, 2, 3, 4)).setFlags(flags);
graph.edge(1, 2, 2, true);
EdgeIterator iter = graph.createEdgeExplorer().setBaseNode(0);
try {
// currently not possible to detach without next, without introducing a new property inside
// EdgeIterable
iter.detach(false);
assertTrue(false);
} catch (Exception ex) {
}
iter.next();
EdgeIteratorState edgeState2 = iter.detach(false);
assertEquals(2, iter.getAdjNode());
assertEquals(1, edgeState2.fetchWayGeometry(0).getLatitude(0), 1e-1);
assertEquals(2, edgeState2.getAdjNode());
assertTrue(carEncoder.isBool(edgeState2.getFlags(), FlagEncoder.K_FORWARD));
EdgeIteratorState edgeState3 = iter.detach(true);
assertEquals(0, edgeState3.getAdjNode());
assertEquals(2, edgeState3.getBaseNode());
assertEquals(3, edgeState3.fetchWayGeometry(0).getLatitude(0), 1e-1);
assertFalse(carEncoder.isBool(edgeState3.getFlags(), FlagEncoder.K_FORWARD));
assertEquals(GHUtility.getEdge(graph, 0, 2).getFlags(), edgeState2.getFlags());
assertEquals(GHUtility.getEdge(graph, 2, 0).getFlags(), edgeState3.getFlags());
iter.next();
assertEquals(1, iter.getAdjNode());
assertEquals(2, edgeState2.getAdjNode());
assertEquals(2, edgeState3.getBaseNode());
assertEquals(0, iter.fetchWayGeometry(0).size());
assertEquals(1, edgeState2.fetchWayGeometry(0).getLatitude(0), 1e-1);
assertEquals(3, edgeState3.fetchWayGeometry(0).getLatitude(0), 1e-1);
// #162 a directed self referencing edge should be able to reverse its state too
graph.edge(3, 3, 2, true).setFlags(flags);
EdgeIterator iter2 = graph.createEdgeExplorer().setBaseNode(3);
iter2.next();
assertEquals(edgeState2.getFlags(), iter2.detach(false).getFlags());
assertEquals(edgeState3.getFlags(), iter2.detach(true).getFlags());
}
public boolean containsLatitude(Graph g, EdgeIterator iter, double latitude) {
NodeAccess na = g.getNodeAccess();
while (iter.next()) {
if (Math.abs(na.getLatitude(iter.getAdjNode()) - latitude) < 1e-4) return true;
}
return false;
}
@Test
public void testUpdateUnidirectional() {
graph = createGraph();
graph.edge(1, 2, 12, false);
graph.edge(3, 2, 112, false);
EdgeIterator i = carOutExplorer.setBaseNode(2);
assertFalse(i.next());
i = carOutExplorer.setBaseNode(3);
assertTrue(i.next());
assertEquals(2, i.getAdjNode());
assertFalse(i.next());
graph.edge(2, 3, 112, false);
i = carOutExplorer.setBaseNode(2);
assertTrue(i.next());
assertEquals(3, i.getAdjNode());
i = carOutExplorer.setBaseNode(3);
i.next();
assertEquals(2, i.getAdjNode());
assertFalse(i.next());
}
@Test
public void testPillarNodes() {
graph = createGraph();
NodeAccess na = graph.getNodeAccess();
na.setNode(0, 0.01, 0.01);
na.setNode(4, 0.4, 0.4);
na.setNode(14, 0.14, 0.14);
na.setNode(10, 0.99, 0.99);
PointList pointList = Helper.createPointList(1, 1, 1, 2, 1, 3);
graph
.edge(0, 4)
.setDistance(100)
.setFlags(carEncoder.setProperties(10, true, false))
.setWayGeometry(pointList);
pointList = Helper.createPointList(1, 5, 1, 6, 1, 7, 1, 8, 1, 9);
graph
.edge(4, 10)
.setDistance(100)
.setFlags(carEncoder.setProperties(10, true, false))
.setWayGeometry(pointList);
pointList = Helper.createPointList(1, 13, 1, 12, 1, 11);
graph
.edge(14, 0)
.setDistance(100)
.setFlags(carEncoder.setProperties(10, true, false))
.setWayGeometry(pointList);
EdgeIterator iter = carAllExplorer.setBaseNode(0);
assertTrue(iter.next());
assertEquals(14, iter.getAdjNode());
assertPList(Helper.createPointList(1, 11, 1, 12, 1, 13.0), iter.fetchWayGeometry(0));
assertPList(
Helper.createPointList(0.01, 0.01, 1, 11, 1, 12, 1, 13.0), iter.fetchWayGeometry(1));
assertPList(
Helper.createPointList(1, 11, 1, 12, 1, 13.0, 0.14, 0.14), iter.fetchWayGeometry(2));
assertPList(
Helper.createPointList(0.01, 0.01, 1, 11, 1, 12, 1, 13.0, 0.14, 0.14),
iter.fetchWayGeometry(3));
assertTrue(iter.next());
assertEquals(4, iter.getAdjNode());
assertPList(Helper.createPointList(1, 1, 1, 2, 1, 3), iter.fetchWayGeometry(0));
assertPList(Helper.createPointList(0.01, 0.01, 1, 1, 1, 2, 1, 3), iter.fetchWayGeometry(1));
assertPList(Helper.createPointList(1, 1, 1, 2, 1, 3, 0.4, 0.4), iter.fetchWayGeometry(2));
assertPList(
Helper.createPointList(0.01, 0.01, 1, 1, 1, 2, 1, 3, 0.4, 0.4), iter.fetchWayGeometry(3));
assertFalse(iter.next());
iter = carOutExplorer.setBaseNode(0);
assertTrue(iter.next());
assertEquals(4, iter.getAdjNode());
assertPList(Helper.createPointList(1, 1, 1, 2, 1, 3), iter.fetchWayGeometry(0));
assertFalse(iter.next());
iter = carInExplorer.setBaseNode(10);
assertTrue(iter.next());
assertEquals(4, iter.getAdjNode());
assertPList(Helper.createPointList(1, 9, 1, 8, 1, 7, 1, 6, 1, 5), iter.fetchWayGeometry(0));
assertPList(
Helper.createPointList(0.99, 0.99, 1, 9, 1, 8, 1, 7, 1, 6, 1, 5), iter.fetchWayGeometry(1));
assertPList(
Helper.createPointList(1, 9, 1, 8, 1, 7, 1, 6, 1, 5, 0.4, 0.4), iter.fetchWayGeometry(2));
assertPList(
Helper.createPointList(0.99, 0.99, 1, 9, 1, 8, 1, 7, 1, 6, 1, 5, 0.4, 0.4),
iter.fetchWayGeometry(3));
assertFalse(iter.next());
}