private static LatLngBounds getSearchBoundsAsLatLngBounds(double radius) {
CoordinateBounds bounds = getSearchBounds(radius);
LatLngBounds b = LatLngBounds.newInstance();
b.extend(LatLng.newInstance(bounds.getMinLat(), bounds.getMinLon()));
b.extend(LatLng.newInstance(bounds.getMaxLat(), bounds.getMaxLon()));
return b;
}
@SuppressWarnings("unchecked")
public Map<NBStop, List<Stop>> getPotentialStopMatches(
List<NBRoute> nbRoutes, Collection<Stop> gtfsStops) {
Map<String, NBStop> nbStopsByTag = getStopsByTag(nbRoutes);
STRtree tree = new STRtree(gtfsStops.size());
for (Stop stop : gtfsStops) {
tree.insert(new Envelope(new Coordinate(stop.getLon(), stop.getLat())), stop);
}
tree.build();
Map<NBStop, List<Stop>> potentialMatches = new HashMap<NBStop, List<Stop>>();
int stopsWithNoMatches = 0;
for (NBStop nbStop : nbStopsByTag.values()) {
CoordinateBounds b =
SphericalGeometryLibrary.bounds(
nbStop.getLat(), nbStop.getLon(), _stopMatchingDistanceThreshold);
Envelope env = new Envelope(b.getMinLon(), b.getMaxLon(), b.getMinLat(), b.getMaxLat());
List<Stop> stopsInEnvelope = tree.query(env);
if (stopsInEnvelope.isEmpty()) {
_log.warn(
"stop with no match: tag="
+ nbStop.getTag()
+ " lat="
+ nbStop.getLat()
+ " lon="
+ nbStop.getLon());
stopsWithNoMatches++;
}
potentialMatches.put(nbStop, stopsInEnvelope);
}
if (stopsWithNoMatches > 0) {
_log.warn("stops without matches: " + stopsWithNoMatches + "/" + nbStopsByTag.size());
}
return potentialMatches;
}