public void addTurn(List<Road> via, Road.End to) {
assert equals(to.getJunction());
Relation existing = null;
for (Turn t : to.getTurns()) {
if (t.getFrom().getOutgoingRoadEnd().equals(getOutgoingRoadEnd()) && t.getVia().equals(via)) {
if (t.getFrom().equals(this)) {
// was already added
return;
}
existing = t.getRelation();
}
}
final Relation r;
if (existing == null) {
r = new Relation();
r.put("type", Constants.TYPE_TURNS);
r.addMember(new RelationMember(Constants.TURN_ROLE_FROM, getOutgoingRoadEnd().getWay()));
if (via.isEmpty()) {
r.addMember(new RelationMember(Constants.TURN_ROLE_VIA, getOutgoingJunction().getNode()));
} else {
for (Way w :
Utils.flattenVia(getOutgoingJunction().getNode(), via, to.getJunction().getNode())) {
r.addMember(new RelationMember(Constants.TURN_ROLE_VIA, w));
}
}
r.addMember(new RelationMember(Constants.TURN_ROLE_TO, to.getWay()));
getOutgoingJunction().getNode().getDataSet().addPrimitive(r);
} else {
r = existing;
}
final String key = isExtra() ? Constants.TURN_KEY_EXTRA_LANES : Constants.TURN_KEY_LANES;
final List<Integer> lanes = Turn.indices(r, key);
lanes.add(getIndex());
r.put(key, Turn.join(lanes));
}
static List<Lane> load(Road.End roadEnd) {
final List<Lane> result = new ArrayList<Lane>();
int i;
i = 0;
for (double l : CollectionUtils.reverse(roadEnd.getLengths(Kind.EXTRA_LEFT))) {
result.add(new Lane(roadEnd, --i, Kind.EXTRA_LEFT, l));
}
final int regulars = getRegularCount(roadEnd.getWay(), roadEnd.getJunction().getNode());
for (i = 1; i <= regulars; ++i) {
result.add(new Lane(roadEnd, i));
}
i = 0;
for (double l : roadEnd.getLengths(Kind.EXTRA_RIGHT)) {
result.add(new Lane(roadEnd, ++i, Kind.EXTRA_RIGHT, l));
}
return result;
}
public Road.End getIncomingRoadEnd() {
return roadEnd.getOppositeEnd();
}
public Road getRoad() {
return roadEnd.getRoad();
}
