public void addRelation(OSMRelation relation) {
if (_relations.containsKey(relation.getId())) return;
if (!(relation.isTag("type", "restriction"))
&& !(relation.isTag("type", "route") && relation.isTag("route", "road"))
&& !(relation.isTag("type", "multipolygon") && relation.hasTag("highway"))
&& !(relation.isTag("type", "level_map"))) {
return;
}
_relations.put(relation.getId(), relation);
if (_relations.size() % 100 == 0) _log.debug("relations=" + _relations.size());
}
/**
* Handle turn restrictions
*
* @param relation
*/
private void processRestriction(OSMRelation relation) {
long from = -1, to = -1, via = -1;
for (OSMRelationMember member : relation.getMembers()) {
String role = member.getRole();
if (role.equals("from")) {
from = member.getRef();
} else if (role.equals("to")) {
to = member.getRef();
} else if (role.equals("via")) {
via = member.getRef();
}
}
if (from == -1 || to == -1 || via == -1) {
_log.warn(
GraphBuilderAnnotation.register(graph, Variety.TURN_RESTRICTION_BAD, relation.getId()));
return;
}
Set<TraverseMode> modes = EnumSet.of(TraverseMode.BICYCLE, TraverseMode.CAR);
String exceptModes = relation.getTag("except");
if (exceptModes != null) {
for (String m : exceptModes.split(";")) {
if (m.equals("motorcar")) {
modes.remove(TraverseMode.CAR);
} else if (m.equals("bicycle")) {
modes.remove(TraverseMode.BICYCLE);
_log.warn(
GraphBuilderAnnotation.register(
graph, Variety.TURN_RESTRICTION_EXCEPTION, via, from));
}
}
}
modes = TraverseMode.internSet(modes);
TurnRestrictionTag tag;
if (relation.isTag("restriction", "no_right_turn")) {
tag = new TurnRestrictionTag(via, TurnRestrictionType.NO_TURN);
} else if (relation.isTag("restriction", "no_left_turn")) {
tag = new TurnRestrictionTag(via, TurnRestrictionType.NO_TURN);
} else if (relation.isTag("restriction", "no_straight_on")) {
tag = new TurnRestrictionTag(via, TurnRestrictionType.NO_TURN);
} else if (relation.isTag("restriction", "no_u_turn")) {
tag = new TurnRestrictionTag(via, TurnRestrictionType.NO_TURN);
} else if (relation.isTag("restriction", "only_straight_on")) {
tag = new TurnRestrictionTag(via, TurnRestrictionType.ONLY_TURN);
} else if (relation.isTag("restriction", "only_right_turn")) {
tag = new TurnRestrictionTag(via, TurnRestrictionType.ONLY_TURN);
} else if (relation.isTag("restriction", "only_left_turn")) {
tag = new TurnRestrictionTag(via, TurnRestrictionType.ONLY_TURN);
} else {
_log.warn(
GraphBuilderAnnotation.register(
graph, Variety.TURN_RESTRICTION_UNKNOWN, relation.getTag("restriction")));
return;
}
TurnRestriction restriction = new TurnRestriction();
restriction.type = tag.type;
restriction.modes = modes;
turnRestrictionsByTag.put(tag, restriction);
MapUtils.addToMapList(turnRestrictionsByFromWay, from, tag);
MapUtils.addToMapList(turnRestrictionsByToWay, to, tag);
}