gtfs-actions/generate-shapes
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add gaussian noise parameter

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This commit is contained in:
Patrick Brosi 2022-01-09 15:09:41 +01:00
parent 0e5213f049
commit f10397db41
6 changed files with 30 additions and 20 deletions
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26
src/pfaedle/router/ShapeBuilder.cpp
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@ -167,19 +167,25 @@ EdgeCandGroup ShapeBuilder::getEdgCands(const Stop* s) const {
auto pos = POINT(s->getLng(), s->getLat());
ret.push_back({0, 0, 0, pos, 0, {}});
// unsigned seed =
// std::chrono::system_clock::now().time_since_epoch().count();
// std::default_random_engine gen(seed);
// std::normal_distribution<double> dist(0.0, 25.0);
// add some gaussian noise
// pos.setX(pos.getX() + dist(gen));
// pos.setY(pos.getY() + dist(gen));
double maxMDist = _motCfg.osmBuildOpts.maxStationCandDistance;
double distor = util::geo::latLngDistFactor(pos);
if (_cfg.gaussianNoise > 0) {
unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
std::default_random_engine gen(seed);
// the standard dev is given in meters, convert (roughly...) to degrees
double standardDev = (_cfg.gaussianNoise / M_PER_DEG) / distor;
// mean 0 (no movement), standard dev according to config
std::normal_distribution<double> dist(0.0, standardDev);
// add gaussian noise
pos.setX(pos.getX() + dist(gen));
pos.setY(pos.getY() + dist(gen));
}
std::set<trgraph::Node*> frNIdx;
_nGrid.get(util::geo::pad(util::geo::getBoundingBox(pos),
(maxMDist / M_PER_DEG) / distor),
@ -594,7 +600,7 @@ ad::cppgtfs::gtfs::Shape ShapeBuilder::getGtfsShape(
std::string ShapeBuilder::getFreeShapeId(Trip* trip) {
std::string ret;
std::lock_guard<std::mutex> guard(_shpMutex);
while (!ret.size() || _feed->getShapes().get(ret)) {
while (!ret.size() || _feed->getShapes().has(ret)) {
_curShpCnt++;
ret = "shp_";
ret += std::to_string(trip->getRoute()->getType());