generate-shapes/src/util/graph/Algorithm.tpp
Patrick Brosi 63f0b61ea1 clean up and refactor half-baked development commits and squash them into a new version.
Changes:

* support for multiple GTFS feeds as input in filtering, read default global and local configuration files
* be a bit more memory conservative
* make caching optional
* dont delete orphan edge if it would transform a degree 3 node with a possible full turn into a degree 2 node eligible for contraction
* dedicated filters for funicular and gondola
* make max snap level option more intuitive
* allow filter rules for level 0
* additional fallback for station snapping
* dont try to route for MOT unequal to trip in -T mode, force-snap to orphaned OSM station if not snap was possible
* write bounds to filtered osm
* remove unused surrounding heuristic
* use bus lanes info
* be a bit more tolerant for bus oneway streets
* create missing directories
* error if no cfg is present, clean up evaluation Makefile
2019-01-12 01:08:13 +01:00

33 lines
894 B
C++

// Copyright 2017, University of Freiburg,
// Chair of Algorithms and Data Structures.
// Authors: Patrick Brosi <brosi@informatik.uni-freiburg.de>
// _____________________________________________________________________________
template <typename N, typename E>
std::vector<std::set<Node<N, E>*> > Algorithm::connectedComponents(
const UndirGraph<N, E>& g) {
std::vector<std::set<Node<N, E>*>> ret;
std::set<Node<N, E>*> visited;
for (auto* n : g.getNds()) {
if (!visited.count(n)) {
ret.resize(ret.size() + 1);
std::stack<Node<N, E>*> q;
q.push(n);
while (!q.empty()) {
Node<N, E>* cur = q.top();
q.pop();
ret.back().insert(cur);
visited.insert(cur);
for (auto* e : cur->getAdjList()) {
if (!visited.count(e->getOtherNd(cur))) q.push(e->getOtherNd(cur));
}
}
}
}
return ret;
}