int output_pgsql_t::pgsql_out_relation(osmid_t id, const taglist_t &rel_tags,
const multinodelist_t &xnodes, const multitaglist_t & xtags,
const idlist_t &xid, const rolelist_t &xrole,
bool pending)
{
if (xnodes.empty())
return 0;
int roads = 0;
int make_polygon = 0;
int make_boundary = 0;
double split_at;
std::vector<int> members_superseeded(xnodes.size(), 0);
taglist_t outtags;
//if its a route relation make_boundary and make_polygon will be false otherwise one or the other will be true
if (m_tagtransform->filter_rel_member_tags(rel_tags, xtags, xrole,
&(members_superseeded[0]), &make_boundary, &make_polygon, &roads,
*m_export_list.get(), outtags)) {
return 0;
}
/* Split long linear ways after around 1 degree or 100km (polygons not effected) */
if (m_options.projection->get_proj_id() == PROJ_LATLONG)
split_at = 1;
else
split_at = 100 * 1000;
//this will either make lines or polygons (unless the lines arent a ring or are less than 3 pts) depending on the tag transform above
//TODO: pick one or the other based on which we expect to care about
geometry_builder::maybe_wkts_t wkts = builder.build_both(xnodes, make_polygon, m_options.enable_multi, split_at, id);
if (!wkts->size()) {
return 0;
}
tag *areatag = 0;
for (const auto& wkt: *wkts) {
expire->from_wkt(wkt.geom.c_str(), -id);
/* FIXME: there should be a better way to detect polygons */
if (boost::starts_with(wkt.geom, "POLYGON") || boost::starts_with(wkt.geom, "MULTIPOLYGON")) {
if ((wkt.area > 0.0) && m_enable_way_area) {
char tmp[32];
snprintf(tmp, sizeof(tmp), "%g", wkt.area);
if (!areatag) {
outtags.push_dedupe(tag("way_area", tmp));
areatag = outtags.find("way_area");
} else
areatag->value = tmp;
}
m_tables[t_poly]->write_wkt(-id, outtags, wkt.geom.c_str());
} else {
m_tables[t_line]->write_wkt(-id, outtags, wkt.geom.c_str());
if (roads)
m_tables[t_roads]->write_wkt(-id, outtags, wkt.geom.c_str());
}
}
/* Tagtransform will have marked those member ways of the relation that
* have fully been dealt with as part of the multi-polygon entry.
* Set them in the database as done and delete their entry to not
* have duplicates */
//dont do this when working with pending relations as its not needed
if (make_polygon) {
for (size_t i=0; i < xid.size(); i++) {
if (members_superseeded[i]) {
pgsql_delete_way_from_output(xid[i]);
if(!pending)
ways_done_tracker->mark(xid[i]);
}
}
}
// If the tag transform said the polygon looked like a boundary we want to make that as well
// If we are making a boundary then also try adding any relations which form complete rings
// The linear variants will have already been processed above
if (make_boundary) {
tag *areatag = 0;
wkts = builder.build_polygons(xnodes, m_options.enable_multi, id);
for (const auto& wkt: *wkts) {
expire->from_wkt(wkt.geom.c_str(), -id);
if ((wkt.area > 0.0) && m_enable_way_area) {
char tmp[32];
snprintf(tmp, sizeof(tmp), "%g", wkt.area);
if (!areatag) {
outtags.push_dedupe(tag("way_area", tmp));
areatag = outtags.find("way_area");
} else
areatag->value = tmp;
}
m_tables[t_poly]->write_wkt(-id, outtags, wkt.geom.c_str());
}
}
return 0;
}