LoadInitSurface( me : in out; aFace : Face from TopoDS );
---Purpose: Loads the initial Surface
+ -- The initial surface must have orthogonal local coordinates,
+ -- i.e. partial derivatives dS/du and dS/dv must be orthogonal
+ -- at each point of surface.
+ -- If this condition breaks, distortions of resulting surface
+ -- are possible.
Add( me : in out; anEdge : Edge from TopoDS;
-- If no initial surface is given, the algorithm computes it
-- automatically. If the set of edges is not connected (Free constraint),
-- missing edges are automatically computed.
+ -- Important: the initial surface must have orthogonal local coordinates,
+ -- i.e. partial derivatives dS/du and dS/dv must be orthogonal
+ -- at each point of surface.
+ -- If this condition breaks, distortions of resulting surface
+ -- are possible.
Add( me : in out; Constr : Edge from TopoDS;