//! Warning: All the methods are virtual and implemented with a
//! raise to allow to redefined only the methods realy
//! used.
+//!
+//! Polynomial coefficients of BSpline surfaces used for their evaluation are
+//! cached for better performance. Therefore these evaluations are not
+//! thread-safe and parallel evaluations need to be prevented.
class Adaptor3d_Surface
{
public: