-- File:	AppBlend_Approx.cdl
-- Created:	Tue Aug 27 16:29:23 1996
-- Author:	Philippe MANGIN
--		<pmn@sgi29>
---Copyright:	 Matra Datavision 1996



deferred class Approx from AppBlend


	---Purpose: Bspline approximation of a surface.

uses Array2OfPnt             from TColgp,
     HArray2OfPnt            from TColgp,
     Array2OfReal            from TColStd,
     HArray2OfReal           from TColStd,
     Array1OfReal            from TColStd,
     HArray1OfReal           from TColStd,
     Array1OfInteger         from TColStd,
     HArray1OfInteger        from TColStd,
     Array1OfPnt2d           from TColgp

raises NotDone     from StdFail,
       DomainError from Standard,
       OutOfRange  from Standard

is



    Delete(me:out) is virtual;
    ---C++: alias "Standard_EXPORT virtual ~AppBlend_Approx(){Delete() ; }"
    


    IsDone(me)
        returns Boolean from Standard	
	is deferred;


    SurfShape(me; UDegree,VDegree  : out Integer from Standard;
                  NbUPoles,NbVPoles: out Integer from Standard;
                  NbUKnots,NbVKnots: out Integer from Standard)
    	raises NotDone from StdFail
    	is deferred;


    Surface(me; TPoles          : out Array2OfPnt from TColgp;
    	        TWeights        : out Array2OfReal from TColStd;
		TUKnots,TVKnots : out Array1OfReal from TColStd;
		TUMults,TVMults : out Array1OfInteger from TColStd)
    	raises NotDone from StdFail
    	is deferred;


    UDegree(me)
    
    	returns Integer from Standard
    	raises NotDone from StdFail
	is deferred;


    VDegree(me)
    
    	returns Integer from Standard
    	raises NotDone from StdFail
	is deferred;


    SurfPoles(me)
    
    	returns Array2OfPnt from TColgp
	---C++: return const&

	raises NotDone from StdFail
	is deferred;


    SurfWeights(me)
    
    	returns Array2OfReal from TColStd
	---C++: return const&

	raises NotDone from StdFail
	is deferred;


    SurfUKnots(me)
    
    	returns Array1OfReal from TColStd
	---C++: return const&

	raises NotDone from StdFail
	is deferred;


    SurfVKnots(me)
    
    	returns Array1OfReal from TColStd
	---C++: return const&

	raises NotDone from StdFail
	is deferred;


    SurfUMults(me)
    
    	returns Array1OfInteger from TColStd
	---C++: return const&

	raises NotDone from StdFail
	is deferred;


    SurfVMults(me)
    
    	returns Array1OfInteger from TColStd
	---C++: return const&

	raises NotDone from StdFail
	is deferred;


    NbCurves2d(me)
    
    	returns Integer from Standard	
	raises NotDone from StdFail
	is deferred;


    Curves2dShape(me; Degree,NbPoles,NbKnots: out Integer from Standard)
    
    	raises NotDone from StdFail,
	       DomainError from Standard

        is deferred;
	
	
    Curve2d(me; Index: Integer from Standard;
                TPoles   : out Array1OfPnt2d from TColgp;
		TKnots   : out Array1OfReal from TColStd;
		TMults   : out Array1OfInteger from TColStd)
		
    	raises NotDone     from StdFail,
	       OutOfRange  from Standard,
	       DomainError from Standard

    	is deferred;     


    Curves2dDegree(me)
    
    	returns Integer from Standard	
	raises NotDone from StdFail,
	       DomainError from Standard
	is deferred;
	
	
    Curve2dPoles(me; Index: Integer from Standard)
    
    	returns Array1OfPnt2d from TColgp
	---C++: return const&
	
	raises NotDone     from StdFail,
	       OutOfRange  from Standard,
	       DomainError from Standard
	is deferred;
	

    Curves2dKnots(me)
    
    	returns Array1OfReal from TColStd
	---C++: return const&

	raises NotDone from StdFail,
	       DomainError from Standard
	is deferred;


    Curves2dMults(me)
    
    	returns Array1OfInteger from TColStd
	---C++: return const&

	raises NotDone from StdFail,
	       DomainError from Standard
	is deferred;
	
    TolReached(me; Tol3d, Tol2d : out Real from Standard)
	raises NotDone from StdFail
	is deferred; 
	 
    TolCurveOnSurf(me; Index  :  Integer  from Standard) 
	returns  Real from Standard  
	raises NotDone from StdFail
        is deferred;    
                    

end Approx;