BBTK_INPUT(PolyDataToActor,Opacity,"Opacity",double,"");
BBTK_INPUT(PolyDataToActor,Colour,"r g b",vectorcolour,"colour");
BBTK_INPUT(PolyDataToActor,Renderer,"3D scene in which to insert the surface",vtkRenderer*,"");
BBTK_INPUT(PolyDataToActor,Opacity,"Opacity",double,"");
BBTK_INPUT(PolyDataToActor,Colour,"r g b",vectorcolour,"colour");
BBTK_INPUT(PolyDataToActor,Renderer,"3D scene in which to insert the surface",vtkRenderer*,"");