public List<DirectEdge> getOutgoingEdges(Vertex vertex) {
Graph graph = _graphService.getGraph();
GraphVertex gv = graph.getGraphVertex(vertex);
if (gv == null) {
return Collections.emptyList();
}
List<DirectEdge> result = new ArrayList<DirectEdge>();
for (Edge out : gv.getOutgoing()) {
if (!(out instanceof TurnEdge || out instanceof OutEdge || out instanceof PlainStreetEdge)) {
continue;
}
result.add((StreetEdge) out);
}
return result;
}
@Override
public void buildGraph(Graph graph) {
WeightTable wt = new WeightTable(graph);
if (maxWalkSpeed != null) {
wt.setMaxWalkSpeed(maxWalkSpeed);
}
wt.buildTable();
graph.putService(WeightTable.class, wt);
}
public void testNetworkLinker() {
int numVerticesBefore = graph.getVertices().size();
NetworkLinker nl = new NetworkLinker(graph);
nl.createLinkage();
int numVerticesAfter = graph.getVertices().size();
assertEquals(4, numVerticesAfter - numVerticesBefore);
Collection<Edge> outgoing = graph.getOutgoing(station1);
assertTrue(outgoing.size() == 1);
DirectEdge edge = (DirectEdge) outgoing.iterator().next();
Vertex midpoint = edge.getToVertex();
assertTrue(Math.abs(midpoint.getCoordinate().y - 40.01) < 0.00000001);
outgoing = graph.getOutgoing(station2);
assertTrue(outgoing.size() == 1);
edge = (DirectEdge) outgoing.iterator().next();
Vertex station2point = edge.getToVertex();
assertTrue(Math.abs(station2point.getCoordinate().x - -74.002) < 0.00000001);
}
public boolean multipleOptionsBefore(Edge edge, State state) {
Graph graph = _graphService.getGraph();
boolean foundAlternatePaths = false;
Vertex start = edge.getFromVertex();
GraphVertex gv = graph.getGraphVertex(start);
if (gv == null) {
return false;
}
for (Edge out : gv.getOutgoing()) {
if (out == edge) {
continue;
}
if (!(out instanceof TurnEdge || out instanceof OutEdge || out instanceof PlainStreetEdge)) {
continue;
}
if (state != null && out.traverse(state) == null) {
continue;
}
// there were paths we didn't take.
foundAlternatePaths = true;
break;
}
return foundAlternatePaths;
}
public void setUp() {
graph = new Graph();
// a 0.1 degree x 0.1 degree square
top =
new StreetVertex(
"top",
GeometryUtils.makeLineString(-74.01, 40.01, -74.0, 40.01),
"top",
1500,
false,
null);
bottom =
new StreetVertex(
"bottom",
GeometryUtils.makeLineString(-74.01, 40.0, -74.0, 40.0),
"bottom",
1500,
false,
null);
left =
new StreetVertex(
"left",
GeometryUtils.makeLineString(-74.01, 40.0, -74.01, 40.01),
"left",
1500,
false,
null);
right =
new StreetVertex(
"right",
GeometryUtils.makeLineString(-74.0, 40.0, -74.0, 40.01),
"right",
1500,
false,
null);
StreetVertex topBack =
new StreetVertex(
"topBack",
GeometryUtils.makeLineString(-74.0, 40.01, -74.01, 40.01),
"topBack",
1500,
true,
null);
StreetVertex bottomBack =
new StreetVertex(
"bottomBack",
GeometryUtils.makeLineString(-74.0, 40.0, -74.01, 40.0),
"bottomBack",
1500,
true,
null);
leftBack =
new StreetVertex(
"leftBack",
GeometryUtils.makeLineString(-74.01, 40.01, -74.01, 40.0),
"leftBack",
1500,
true,
null);
rightBack =
new StreetVertex(
"rightBack",
GeometryUtils.makeLineString(-74.0, 40.01, -74.0, 40.0),
"rightBack",
1500,
true,
null);
right.setPermission(StreetTraversalPermission.PEDESTRIAN);
graph.addVertex(top);
graph.addVertex(bottom);
graph.addVertex(left);
graph.addVertex(right);
graph.addVertex(topBack);
graph.addVertex(bottomBack);
graph.addVertex(leftBack);
graph.addVertex(rightBack);
EndpointVertex tlIn =
(EndpointVertex) graph.addVertex(new EndpointVertex("tl in", -74.01, 40.01));
EndpointVertex trIn =
(EndpointVertex) graph.addVertex(new EndpointVertex("tr in", -74.0, 40.01));
EndpointVertex blIn =
(EndpointVertex) graph.addVertex(new EndpointVertex("bl in", -74.0, 40.0));
EndpointVertex brIn =
(EndpointVertex) graph.addVertex(new EndpointVertex("br in", -74.01, 40.0));
Vertex tlOut = graph.addVertex(new EndpointVertex("tl out", -74.01, 40.01));
trOut = graph.addVertex(new EndpointVertex("tr out", -74.0, 40.01));
Vertex blOut = graph.addVertex(new EndpointVertex("bl out", -74.0, 40.0));
brOut = graph.addVertex(new EndpointVertex("br out", -74.01, 40.0));
graph.addEdge(new FreeEdge(tlOut, top));
graph.addEdge(new FreeEdge(tlOut, leftBack));
graph.addEdge(new FreeEdge(trOut, topBack));
graph.addEdge(new FreeEdge(trOut, rightBack));
graph.addEdge(new FreeEdge(blOut, bottom));
graph.addEdge(new FreeEdge(blOut, left));
graph.addEdge(new FreeEdge(brOut, bottomBack));
graph.addEdge(new FreeEdge(brOut, right));
graph.addEdge(new OutEdge(topBack, tlIn));
graph.addEdge(new OutEdge(left, tlIn));
graph.addEdge(new OutEdge(top, trIn));
graph.addEdge(new OutEdge(right, trIn));
graph.addEdge(new OutEdge(bottomBack, blIn));
graph.addEdge(new OutEdge(leftBack, blIn));
graph.addEdge(new OutEdge(bottom, brIn));
graph.addEdge(new OutEdge(rightBack, brIn));
graph.addEdge(new TurnEdge(top, rightBack));
graph.addEdge(new TurnEdge(rightBack, bottomBack));
graph.addEdge(new TurnEdge(bottomBack, left));
graph.addEdge(new TurnEdge(left, top));
graph.addEdge(new TurnEdge(topBack, leftBack));
graph.addEdge(new TurnEdge(leftBack, bottom));
graph.addEdge(new TurnEdge(bottom, right));
graph.addEdge(new TurnEdge(right, topBack));
station1 =
new TransitStop(
"transitVertex 1",
-74.005,
40.0099999,
"transitVertex 1",
new AgencyAndId("A", "fleem station"),
null);
graph.addVertex(station1);
station2 =
new TransitStop(
"transitVertex 2",
-74.002,
40.0099999,
"transitVertex 2",
new AgencyAndId("A", "morx station"),
null);
graph.addVertex(station2);
}
public void testHalfEdges() {
// the shortest half-edge from the start vertex takes you down, but the shortest total path
// is up and over
TraverseOptions options = new TraverseOptions();
HashSet<Edge> turns = new HashSet<Edge>(graph.getOutgoing(left));
turns.addAll(graph.getOutgoing(leftBack));
StreetLocation start =
StreetLocation.createStreetLocation(
"start",
"start",
cast(turns, StreetEdge.class),
new LinearLocation(0, 0.4).getCoordinate(left.getGeometry()));
HashSet<Edge> endTurns = new HashSet<Edge>(graph.getOutgoing(right));
endTurns.addAll(graph.getOutgoing(rightBack));
StreetLocation end =
StreetLocation.createStreetLocation(
"end",
"end",
cast(endTurns, StreetEdge.class),
new LinearLocation(0, 0.8).getCoordinate(right.getGeometry()));
assertTrue(start.getX() < end.getX());
assertTrue(start.getY() < end.getY());
List<DirectEdge> extra = end.getExtra();
assertEquals(12, extra.size());
GregorianCalendar startTime = new GregorianCalendar(2009, 11, 1, 12, 34, 25);
ShortestPathTree spt1 =
AStar.getShortestPathTree(graph, brOut, end, TestUtils.toSeconds(startTime), options);
GraphPath pathBr = spt1.getPath(end, false);
assertNotNull("There must be a path from br to end", pathBr);
ShortestPathTree spt2 =
AStar.getShortestPathTree(graph, trOut, end, TestUtils.toSeconds(startTime), options);
GraphPath pathTr = spt2.getPath(end, false);
assertNotNull("There must be a path from tr to end", pathTr);
assertTrue(
"path from bottom to end must be longer than path from top to end",
pathBr.getWeight() > pathTr.getWeight());
ShortestPathTree spt =
AStar.getShortestPathTree(graph, start, end, TestUtils.toSeconds(startTime), options);
GraphPath path = spt.getPath(end, false);
assertNotNull("There must be a path from start to end", path);
// the bottom is not part of the shortest path
for (State s : path.states) {
assertNotSame(s.getVertex(), graph.getVertex("bottom"));
assertNotSame(s.getVertex(), graph.getVertex("bottomBack"));
}
startTime = new GregorianCalendar(2009, 11, 1, 12, 34, 25);
options.setArriveBy(true);
spt = AStar.getShortestPathTree(graph, start, end, TestUtils.toSeconds(startTime), options);
path = spt.getPath(start, false);
assertNotNull("There must be a path from start to end (looking back)", path);
// the bottom edge is not part of the shortest path
for (State s : path.states) {
assertNotSame(s.getVertex(), graph.getVertex("bottom"));
assertNotSame(s.getVertex(), graph.getVertex("bottomBack"));
}
/* Now, the right edge is not bikeable. But the user can walk their bike. So here are some tests
* that prove (a) that walking bikes works, but that (b) it is not preferred to riding a tiny bit longer.
*/
options = new TraverseOptions(new TraverseModeSet(TraverseMode.BICYCLE));
start =
StreetLocation.createStreetLocation(
"start1",
"start1",
cast(turns, StreetEdge.class),
new LinearLocation(0, 0.95).getCoordinate(top.getGeometry()));
end =
StreetLocation.createStreetLocation(
"end1",
"end1",
cast(turns, StreetEdge.class),
new LinearLocation(0, 0.95).getCoordinate(bottom.getGeometry()));
spt = AStar.getShortestPathTree(graph, start, end, TestUtils.toSeconds(startTime), options);
path = spt.getPath(start, false);
assertNotNull("There must be a path from top to bottom along the right", path);
// the left edge is not part of the shortest path (even though the bike must be walked along the
// right)
for (State s : path.states) {
assertNotSame(s.getVertex(), graph.getVertex("left"));
assertNotSame(s.getVertex(), graph.getVertex("leftBack"));
}
start =
StreetLocation.createStreetLocation(
"start2",
"start2",
cast(turns, StreetEdge.class),
new LinearLocation(0, 0.55).getCoordinate(top.getGeometry()));
end =
StreetLocation.createStreetLocation(
"end2",
"end2",
cast(turns, StreetEdge.class),
new LinearLocation(0, 0.55).getCoordinate(bottom.getGeometry()));
spt = AStar.getShortestPathTree(graph, start, end, TestUtils.toSeconds(startTime), options);
path = spt.getPath(start, false);
assertNotNull("There must be a path from top to bottom", path);
// the right edge is not part of the shortest path, e
for (State s : path.states) {
assertNotSame(s.getVertex(), graph.getVertex("right"));
assertNotSame(s.getVertex(), graph.getVertex("rightBack"));
}
}
