void expire_tiles::from_nodes_line(const nodelist_t &nodes)
{
if (Options->expire_tiles_zoom < 0 || nodes.empty())
return;
if (nodes.size() == 1) {
from_bbox(nodes[0].lon, nodes[0].lat, nodes[0].lon, nodes[0].lat);
} else {
for (size_t i = 1; i < nodes.size(); ++i)
from_line(nodes[i-1].lon, nodes[i-1].lat, nodes[i].lon, nodes[i].lat);
}
}
size_t middle_ram_t::nodes_get_list(nodelist_t &out, const idlist_t nds) const
{
for (idlist_t::const_iterator it = nds.begin(); it != nds.end(); ++it) {
osmNode n;
if (!cache->get(&n, *it))
out.push_back(n);
}
return int(out.size());
}
/*
* Calculate a bounding box from a list of nodes and expire all tiles within it
*/
void expire_tiles::from_nodes_poly(const nodelist_t &nodes, osmid_t osm_id)
{
if (Options->expire_tiles_zoom < 0 || nodes.empty())
return;
double min_lon = nodes[0].lon;
double min_lat = nodes[0].lat;
double max_lon = nodes[0].lon;
double max_lat = nodes[0].lat;
for (size_t i = 1; i < nodes.size(); ++i) {
if (nodes[i].lon < min_lon) min_lon = nodes[i].lon;
if (nodes[i].lat < min_lat) min_lat = nodes[i].lat;
if (nodes[i].lon > max_lon) max_lon = nodes[i].lon;
if (nodes[i].lat > max_lat) max_lat = nodes[i].lat;
}
if (from_bbox(min_lon, min_lat, max_lon, max_lat)) {
/* Bounding box too big - just expire tiles on the line */
fprintf(stderr, "\rLarge polygon (%.0f x %.0f metres, OSM ID %" PRIdOSMID ") - only expiring perimeter\n", max_lon - min_lon, max_lat - min_lat, osm_id);
from_nodes_line(nodes);
}
}
