-- File:	Blend.cdl
-- Created:	Thu Dec  2 10:37:10 1993
-- Author:	Jacques GOUSSARD
--		<jag@topsn2>
---Copyright:	 Matra Datavision 1993


package Blend

uses IntSurf, 
    TColgp, 
    TColStd, 
    Adaptor2d, 
    gp, 
    TopAbs, 
    math, 
    TCollection, 
    MMgt, 
    StdFail,  
    GeomAbs

is

--    deferred generic class SurfaceTool;
    
    generic class Iterator;          -- template class

    deferred class AppFunction;      -- inherits FunctionSetWithDerivatives from math

    deferred class Function;         -- inherits AppFunction from Blend

    deferred class FuncInv;          -- inherits FunctionSetWithDerivatives from math

    deferred class CSFunction;       -- inherits AppFunction from Blend

    deferred class SurfRstFunction;  -- inherits AppFunction from Blend

    deferred class SurfPointFuncInv; -- inherits FunctionSetWithDerivatives from math

    deferred class SurfCurvFuncInv;  -- inherits FunctionSetWithDerivatives from math

    deferred class RstRstFunction;  -- inherits AppFunction from Blend

    deferred class CurvPointFuncInv; -- inherits FunctionSetWithDerivatives from math



    class Point;
    
    generic class Extremity;
    
    generic class PointOnRst;
    
    generic class Line;

    generic class Walking;

    generic class CSWalking;


    class SequenceOfPoint instantiates Sequence from TCollection
    	(Point from Blend);
	
    enumeration Status is 
    	StepTooLarge,
	StepTooSmall,
	Backward,
	SamePoints,
	OnRst1,
	OnRst2,
	OnRst12,
	OK
    end Status;


    enumeration DecrochStatus is 
    	NoDecroch,
	DecrochRst1,
	DecrochRst2,
	DecrochBoth
    end Status;



end Blend;