CONICAL_SURF
CONICAL_SURF: "CONICAL_SURF"
CYLINDRICAL_SURF
CYLINDRICAL_SURF: "CYLINDRICAL_SURF"
GENERALISED_CONE
GENERALISED_CONE: "GENERALISED_CONE"
PLANE_SURF
PLANE_SURF: "PLANE_SURF"
QUADRIC_SURF
QUADRIC_SURF: "QUADRIC_SURF"
RULED_SURF
RULED_SURF: "RULED_SURF"
SPHERICAL_SURF
SPHERICAL_SURF: "SPHERICAL_SURF"
SURF_OF_LINEAR_EXTRUSION
SURF_OF_LINEAR_EXTRUSION: "SURF_OF_LINEAR_EXTRUSION"
SURF_OF_REVOLUTION
SURF_OF_REVOLUTION: "SURF_OF_REVOLUTION"
TOROIDAL_SURF
TOROIDAL_SURF: "TOROIDAL_SURF"
UNSPECIFIED
UNSPECIFIED: "UNSPECIFIED"
IfcBSplineSurfaceForm