//! surface from the package Geom and those required
//! of the surface by algorithms which use it.
//! Creation of the loaded surface the surface is C1 by piece
+//!
+//! 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 GeomAdaptor_Surface : public Adaptor3d_Surface
{
public: