成员的完整列表，这些成员属于 carla::road::element::GeometryPoly3,包括所有继承而来的类成员

_a	carla::road::element::GeometryPoly3	private
_b	carla::road::element::GeometryPoly3	private
_c	carla::road::element::GeometryPoly3	private
_d	carla::road::element::GeometryPoly3	private
_heading	carla::road::element::Geometry	protected
_length	carla::road::element::Geometry	protected
_poly	carla::road::element::GeometryPoly3	private
_rtree	carla::road::element::GeometryPoly3	private
_start_position	carla::road::element::Geometry	protected
_start_position_offset	carla::road::element::Geometry	protected
_type	carla::road::element::Geometry	protected
DistanceTo(const geom::Location &) const override	carla::road::element::GeometryPoly3	virtual
Geometry(GeometryType type, double start_offset, double length, double heading, const geom::Location &start_pos)	carla::road::element::Geometry	inlineprotected
GeometryPoly3(double start_offset, double length, double heading, const geom::Location &start_pos, double a, double b, double c, double d)	carla::road::element::GeometryPoly3	inline
Geta() const	carla::road::element::GeometryPoly3	inline
Getb() const	carla::road::element::GeometryPoly3	inline
Getc() const	carla::road::element::GeometryPoly3	inline
Getd() const	carla::road::element::GeometryPoly3	inline
GetHeading() const	carla::road::element::Geometry	inline
GetLength() const	carla::road::element::Geometry	inline
GetStartOffset() const	carla::road::element::Geometry	inline
GetStartPosition()	carla::road::element::Geometry	inline
GetType() const	carla::road::element::Geometry	inline
PosFromDist(double dist) const override	carla::road::element::GeometryPoly3	virtual
PreComputeSpline()	carla::road::element::GeometryPoly3	private
Rtree typedef	carla::road::element::GeometryPoly3	private
TreeElement typedef	carla::road::element::GeometryPoly3	private
~Geometry()=default	carla::road::element::Geometry	virtual