Bezier surface source and widget for VTK ----------------------------------------- vtkBezierSurfaceSource allows the construction of 3D Bezier surfaces as polydata. By default the Bezier surface generated corresponds to a plane of 3x3 control points. It is possible to specify new control points and/or assign a transformation to the source. vtkBezierSurfaceWidget allows interactive modification of the 3D Bezier surface by modifying the associated control points. Notice vtkBezierSurfaceWidget requires the specification of a vtkBezierSurfaceSource. Examples: BezierSource (Example_Source.cxx): Creates the default Bezier surface (3x3 control points plane). It illustrates the use of vtkBezierSurfaceSource without any vtkBezierSourceWidget. BezierSourceWidget (Example_Source_Widget.cxx): Creates a transformed Bezier surface based on an arbitrary plane. It also creates the correspondent vtkBezierSurfaceWidget wich allows the interactive modification of the Bezier surface by moving the control points.