std::vector<time_t> *forWay(const Osmium::OSM::WayNodeList &nodes, time_t from, time_t to) {
std::vector<time_t> *minor_times = new std::vector<time_t>();
for(Osmium::OSM::WayNodeList::const_iterator nodeit = nodes.begin(); nodeit != nodes.end(); nodeit++) {
osm_object_id_t id = nodeit->ref();
bool found = false;
Nodestore::timemap_ptr tmap = m_nodestore->lookup(id, found);
if(!found) {
continue;
}
Nodestore::timemap_cit lower = tmap->lower_bound(from);
Nodestore::timemap_cit upper = to == 0 ? tmap->end() : tmap->upper_bound(to);
for(Nodestore::timemap_cit it = lower; it != upper; it++) {
/*
* lower_bound returns elements *not lower then* from, so it can return times == from
* this results in minor with timestamps and information equal to the original way
*/
if(it->first == from) continue;
minor_times->push_back(it->first);
}
}
std::sort(minor_times->begin(), minor_times->end());
minor_times->erase(std::unique(minor_times->begin(), minor_times->end()), minor_times->end());
return minor_times;
}
void way(const shared_ptr<const OSM::Way> &way)
{
Osmium::OSM::TagList::const_iterator tagIt;
for(tagIt = way->tags().begin();
tagIt != way->tags().end(); ++tagIt)
{
std::string sKey(tagIt->key());
std::string sVal(tagIt->value());
if(sKey.compare("natural") == 0) {
if(sVal.compare("coastline") == 0) {
Osmium::OSM::WayNodeList::const_iterator nodeIt;
for(nodeIt = way->nodes().begin();
nodeIt != way->nodes().end(); ++nodeIt)
{
std::unordered_map<size_t,Node>::iterator findIt;
size_t findId = nodeIt->ref();
findIt = m_listNodes.find(findId);
if(findIt == m_listNodes.end())
{ return; } // way pointing to node not in data set
std::cout << std::fixed << std::setprecision(7)
<< findIt->second.lon << ","
<< std::fixed << std::setprecision(7)
<< findIt->second.lat << "," << 0 << "\n";
}
}
}
}
}
void way(const shared_ptr<Osmium::OSM::Way const>& way) const {
m_output_stream << "way:\n";
print_meta(way);
m_output_stream << " node_count=" << way->nodes().size() << "\n";
m_output_stream << " nodes:\n";
Osmium::OSM::WayNodeList::const_iterator end = way->nodes().end();
for (Osmium::OSM::WayNodeList::const_iterator it = way->nodes().begin(); it != end; ++it) {
m_output_stream << " ref=" << it->ref() << "\n";
}
}
geos::geom::Geometry* forWay(const Osmium::OSM::WayNodeList &nodes, time_t t, bool looksLikePolygon) {
// shorthand to the geometry factory
geos::geom::GeometryFactory *f = Osmium::Geometry::geos_geometry_factory();
// pointer to coordinate vector
std::vector<geos::geom::Coordinate> *c = new std::vector<geos::geom::Coordinate>();
// iterate over all nodes
Osmium::OSM::WayNodeList::const_iterator end = nodes.end();
for(Osmium::OSM::WayNodeList::const_iterator it = nodes.begin(); it != end; ++it) {
// the id
osm_object_id_t id = it->ref();
// was the node found in the store?
bool found;
Nodestore::Nodeinfo info = m_nodestore->lookup(id, t, found);
// a missing node can just be skipped
if(!found)
continue;
double lon = info.lon, lat = info.lat;
if(m_debug) {
std::cerr << "node #" << id << " at tstamp " << t << " references node at POINT(" << std::setprecision(8) << lon << ' ' << lat << ')' << std::endl;
}
// create a coordinate-object and add it to the vector
if(!m_keepLatLng) {
if(!Project::toMercator(&lon, &lat))
continue;
}
c->push_back(geos::geom::Coordinate(lon, lat, DoubleNotANumber));
}
// if less then 2 nodes could be found in the store, no valid way
// can be assembled and we need to skip it
if(c->size() < 2) {
if(m_showerrors) {
std::cerr << "found only " << c->size() << " valid coordinates, skipping way" << std::endl;
}
delete c;
return NULL;
}
// the resulting geometry
geos::geom::Geometry* geom;
// geos throws exception on bad geometries and such
try {
// tags say it could be a polygon, the way is closed and has
// at least 3 *different* coordinates
if(looksLikePolygon && c->front() == c->back() && c->size() >= 4) {
// build a polygon
geom = f->createPolygon(
f->createLinearRing(
f->getCoordinateSequenceFactory()->create(c)
),
NULL
);
} else {
// build a linestring
geom = f->createLineString(
f->getCoordinateSequenceFactory()->create(c)
);
}
} catch(geos::util::GEOSException e) {
if(m_showerrors) {
std::cerr << "error creating polygon: " << e.what() << std::endl;
}
delete c;
return NULL;
}
// enforce srid
if(geom) {
geom->setSRID(900913);
}
return geom;
}