TopoShapeFace is the OpenCasCade topological face wrapper Offset the shape by a given ammount Get the tangent in u and v isoparametric at the given point if defined Vector = valueAt(pos) - Get the point at the given parameter [0|Length] if defined Vector = normalAt(pos) - Get the normal vector at the given parameter [0|Length] if defined Vector = d1At(pos) - Get the first derivative at the given parameter [0|Length] if defined Vector = d2At(pos) - Get the second derivative at the given parameter [0|Length] if defined Float = curvatureAt(pos) - Get the curvature at the given parameter [0|Length] if defined Check if a given (u,v) pair is inside the domain of a face Make a half-space solid by this face and a reference point. Set the tolerance for the face. Set or get the tolerance of the vertex Returns a 4 tuple with the parameter range Returns the geometric surface of the face The Wire of this face Returns the center of mass of the current system. If the gravitational field is uniform, it is the center of gravity. The coordinates returned for the center of mass are expressed in the absolute Cartesian coordinate system.