private void attachRoadSegments(
RoutingContext ctx, List<RouteSegmentResult> result, int routeInd, int pointInd, boolean plus)
throws IOException {
RouteSegmentResult rr = result.get(routeInd);
RouteDataObject road = rr.getObject();
long nextL = pointInd < road.getPointsLength() - 1 ? getPoint(road, pointInd + 1) : 0;
long prevL = pointInd > 0 ? getPoint(road, pointInd - 1) : 0;
// attach additional roads to represent more information about the route
RouteSegmentResult previousResult = null;
// by default make same as this road id
long previousRoadId = road.getId();
if (pointInd == rr.getStartPointIndex() && routeInd > 0) {
previousResult = result.get(routeInd - 1);
previousRoadId = previousResult.getObject().getId();
if (previousRoadId != road.getId()) {
if (previousResult.getStartPointIndex() < previousResult.getEndPointIndex()
&& previousResult.getEndPointIndex()
< previousResult.getObject().getPointsLength() - 1) {
rr.attachRoute(
pointInd,
new RouteSegmentResult(
previousResult.getObject(),
previousResult.getEndPointIndex(),
previousResult.getObject().getPointsLength() - 1));
} else if (previousResult.getStartPointIndex() > previousResult.getEndPointIndex()
&& previousResult.getEndPointIndex() > 0) {
rr.attachRoute(
pointInd,
new RouteSegmentResult(
previousResult.getObject(), previousResult.getEndPointIndex(), 0));
}
}
}
Iterator<RouteSegment> it;
if (rr.getPreAttachedRoutes(pointInd) != null) {
final RouteSegmentResult[] list = rr.getPreAttachedRoutes(pointInd);
it =
new Iterator<BinaryRoutePlanner.RouteSegment>() {
int i = 0;
@Override
public boolean hasNext() {
return i < list.length;
}
@Override
public RouteSegment next() {
RouteSegmentResult r = list[i++];
return new RouteSegment(r.getObject(), r.getStartPointIndex());
}
@Override
public void remove() {}
};
} else {
RouteSegment rt =
ctx.loadRouteSegment(
road.getPoint31XTile(pointInd),
road.getPoint31YTile(pointInd),
ctx.config.memoryLimitation);
it = rt.getIterator();
}
// try to attach all segments except with current id
while (it.hasNext()) {
RouteSegment routeSegment = it.next();
if (routeSegment.road.getId() != road.getId()
&& routeSegment.road.getId() != previousRoadId) {
RouteDataObject addRoad = routeSegment.road;
checkAndInitRouteRegion(ctx, addRoad);
// TODO restrictions can be considered as well
int oneWay = ctx.getRouter().isOneWay(addRoad);
if (oneWay >= 0 && routeSegment.getSegmentStart() < addRoad.getPointsLength() - 1) {
long pointL = getPoint(addRoad, routeSegment.getSegmentStart() + 1);
if (pointL != nextL && pointL != prevL) {
// if way contains same segment (nodes) as different way (do not attach it)
rr.attachRoute(
pointInd,
new RouteSegmentResult(
addRoad, routeSegment.getSegmentStart(), addRoad.getPointsLength() - 1));
}
}
if (oneWay <= 0 && routeSegment.getSegmentStart() > 0) {
long pointL = getPoint(addRoad, routeSegment.getSegmentStart() - 1);
// if way contains same segment (nodes) as different way (do not attach it)
if (pointL != nextL && pointL != prevL) {
rr.attachRoute(
pointInd, new RouteSegmentResult(addRoad, routeSegment.getSegmentStart(), 0));
}
}
}
}
}
