bool GeoParser::parsePointWithMaxDistance(const BSONObj& obj, PointWithCRS* out, double* maxOut) {
BSONObjIterator it(obj);
if (!it.more()) { return false; }
BSONElement lng = it.next();
if (!lng.isNumber()) { return false; }
if (!it.more()) { return false; }
BSONElement lat = it.next();
if (!lat.isNumber()) { return false; }
if (!it.more()) { return false; }
BSONElement dist = it.next();
if (!dist.isNumber()) { return false; }
if (it.more()) { return false; }
out->crs = FLAT;
out->oldPoint.x = lng.number();
out->oldPoint.y = lat.number();
*maxOut = dist.number();
if (isValidLngLat(lng.Number(), lat.Number())) {
out->flatUpgradedToSphere = true;
out->point = coordToPoint(lng.Number(), lat.Number());
out->cell = S2Cell(out->point);
}
return true;
}
bool GeoParser::parseCap(const BSONObj& obj, CapWithCRS *out) {
if (isLegacyCenter(obj)) {
BSONObjIterator typeIt(obj);
BSONElement type = typeIt.next();
BSONObjIterator objIt(type.embeddedObject());
BSONElement center = objIt.next();
if (!parseLegacyPoint(center.Obj(), &out->circle.center)) { return false; }
BSONElement radius = objIt.next();
out->circle.radius = radius.number();
out->crs = FLAT;
} else {
verify(isLegacyCenterSphere(obj));
BSONObjIterator typeIt(obj);
BSONElement type = typeIt.next();
BSONObjIterator objIt(type.embeddedObject());
BSONObj centerObj = objIt.next().Obj();
S2Point centerPoint;
BSONObjIterator it(centerObj);
BSONElement x = it.next();
BSONElement y = it.next();
centerPoint = coordToPoint(x.Number(), y.Number());
BSONElement radiusElt = objIt.next();
double radius = radiusElt.number();
out->cap = S2Cap::FromAxisAngle(centerPoint, S1Angle::Radians(radius));
out->circle.radius = radius;
out->circle.center = Point(x.Number(), y.Number());
out->crs = SPHERE;
}
return true;
}
static bool parsePoints(const vector<BSONElement>& coordElt, vector<S2Point>* out) {
for (size_t i = 0; i < coordElt.size(); ++i) {
const vector<BSONElement>& pointElt = coordElt[i].Array();
if (pointElt.empty()) { continue; }
out->push_back(coordToPoint(pointElt[0].Number(), pointElt[1].Number()));
}
return true;
}
bool GeoParser::parsePoint(const BSONObj &obj, PointWithCRS *out) {
if (isGeoJSONPoint(obj)) {
const vector<BSONElement>& coords = obj.getFieldDotted(GEOJSON_COORDINATES).Array();
out->point = coordToPoint(coords[0].Number(), coords[1].Number());
out->cell = S2Cell(out->point);
out->oldPoint.x = coords[0].Number();
out->oldPoint.y = coords[1].Number();
out->crs = SPHERE;
} else if (isLegacyPoint(obj)) {
BSONObjIterator it(obj);
BSONElement x = it.next();
BSONElement y = it.next();
out->point = coordToPoint(x.Number(), y.Number());
out->cell = S2Cell(out->point);
out->oldPoint.x = x.Number();
out->oldPoint.y = y.Number();
out->crs = FLAT;
}
return true;
}
bool GeoParser::parsePoint(const BSONObj &obj, S2Point *out) {
if (isGeoJSONPoint(obj)) {
parseGeoJSONPoint(obj, out);
return true;
} else if (isLegacyPoint(obj)) {
BSONObjIterator it(obj);
BSONElement x = it.next();
BSONElement y = it.next();
*out = coordToPoint(x.number(), y.number());
return true;
}
return false;
}
bool GeoParser::parseMultiPoint(const BSONObj &obj, MultiPointWithCRS *out) {
out->points.clear();
BSONElement coordElt = obj.getFieldDotted(GEOJSON_COORDINATES);
const vector<BSONElement>& coordinates = coordElt.Array();
out->points.resize(coordinates.size());
out->cells.resize(coordinates.size());
for (size_t i = 0; i < coordinates.size(); ++i) {
const vector<BSONElement>& thisCoord = coordinates[i].Array();
out->points[i] = coordToPoint(thisCoord[0].Number(), thisCoord[1].Number());
out->cells[i] = S2Cell(out->points[i]);
}
return true;
}
static S2Point coordsToPoint(const vector<BSONElement>& coordElt) {
return coordToPoint(coordElt[0].Number(), coordElt[1].Number());
}
void GeoParser::parseLegacyPoint(const BSONObj &obj, S2Point *out) {
BSONObjIterator it(obj);
BSONElement x = it.next();
BSONElement y = it.next();
*out = coordToPoint(x.number(), y.number());
}
