public GHResponse route(
List<GHPoint> waypoints, List<Double> headings, boolean withInstructions) {
if (waypoints.size() < 2) {
throw new IllegalArgumentException("Number of waypoints must be greater or equal 2");
}
GHRequest request;
if (headings != null) {
request = new GHRequest(waypoints, headings);
request.setVehicle(FlagEncoderFactory.CAR);
request.setWeighting("fastest");
if (!USE_CONTRACTION_HIERARCHIES) {
request.getHints().put(Parameters.CH.DISABLE, true);
request.getHints().put("routing.flexible_mode.force", true);
request.getHints().put(Parameters.Routing.EDGE_BASED, true);
} else {
request
.getHints()
.put(
Parameters.CH.FORCE_HEADING,
true); // Allow headings for routes using CH, but may produce artifacts (see
// https://github.com/graphhopper/graphhopper/pull/434#issuecomment-110275256)
}
} else {
request = new GHRequest(waypoints);
}
request.setLocale(Locale.getDefault()).setAlgorithm(Parameters.Algorithms.DIJKSTRA_BI);
if (!withInstructions) {
request.getHints().put(Parameters.Routing.INSTRUCTIONS, false);
}
return gh.route(request);
}
