bool GeoParser::parsePolygon(const BSONObj &obj, PolygonWithCRS *out) {
if (isGeoJSONPolygon(obj)) {
const vector<BSONElement>& coordinates = obj.getFieldDotted(GEOJSON_COORDINATES).Array();
if (!parseGeoJSONCRS(obj, &out->crs))
return false;
if (out->crs == SPHERE) {
out->s2Polygon.reset(new S2Polygon());
if (!parseGeoJSONPolygonCoordinates(coordinates, obj, out->s2Polygon.get())) {
return false;
}
}
else if (out->crs == STRICT_SPHERE) {
out->bigPolygon.reset(new BigSimplePolygon());
if (!parseBigSimplePolygonCoordinates(coordinates, obj, out->bigPolygon.get())) {
return false;
}
}
} else {
BSONObjIterator typeIt(obj);
BSONElement type = typeIt.next();
BSONObjIterator coordIt(type.embeddedObject());
vector<Point> points;
while (coordIt.more()) {
Point p;
if (!parseLegacyPoint(coordIt.next().Obj(), &p)) { return false; }
points.push_back(p);
}
out->oldPolygon.init(points);
out->crs = FLAT;
}
return true;
}
bool GeoParser::parseMultiPolygon(const BSONObj &obj, MultiPolygonWithCRS *out) {
vector<BSONElement> coordElt = obj.getFieldDotted(GEOJSON_COORDINATES).Array();
out->polygons.mutableVector().clear();
out->polygons.mutableVector().resize(coordElt.size());
for (size_t i = 0; i < coordElt.size(); ++i) {
out->polygons.mutableVector()[i] = new S2Polygon();
if (!parseGeoJSONPolygonCoordinates(
coordElt[i].Array(), obj, out->polygons.vector()[i])) {
return false;
}
}
return true;
}
bool GeoParser::parsePolygon(const BSONObj &obj, PolygonWithCRS *out) {
if (isGeoJSONPolygon(obj)) {
const vector<BSONElement>& coordinates = obj.getFieldDotted(GEOJSON_COORDINATES).Array();
if (!parseGeoJSONPolygonCoordinates(coordinates, obj, &out->polygon)) { return false; }
out->crs = SPHERE;
} else {
BSONObjIterator typeIt(obj);
BSONElement type = typeIt.next();
BSONObjIterator coordIt(type.embeddedObject());
vector<Point> points;
while (coordIt.more()) {
Point p;
if (!parseLegacyPoint(coordIt.next().Obj(), &p)) { return false; }
points.push_back(p);
}
out->oldPolygon = Polygon(points);
out->crs = FLAT;
}
return true;
}
