-- File:	LProp_CurAndInf.cdl
-- Created:	Fri Sep  2 11:27:40 1994
-- Author:	Yves FRICAUD
--		<yfr@phylox>
---Copyright:	 Matra Datavision 1994

class CurAndInf from LProp 

	---Purpose: Stores the parameters of a curve 2d or 3d corresponding
	--          to the curvature's extremas and the Inflection's Points.

uses
    CIType            from LProp,
    SequenceOfReal    from TColStd,
    SequenceOfCIType  from LProp
    
raises 
    OutOfRange from Standard 
    
is
    Create;
    
    AddInflection (me : in out; Param : Real) 
    is static;
    
    AddExtCur (me : in out; Param : Real; IsMin : Boolean)
    is static;
    
    Clear (me : in out) 
    is static;
    
    IsEmpty (me) returns Boolean
    is static;
    
    NbPoints (me) returns Integer
	---Purpose: Returns the number of points.
	--          The Points are stored to increasing parameter.
    is static;
    
    Parameter (me; N : Integer) returns Real
	---Purpose: Returns the parameter of the Nth point.
    raises
    	OutOfRange from Standard
	---Purpose: raises if N not in the range [1,NbPoints()]    
    is static;
    
    Type (me; N : Integer) returns CIType 
    	---Purpose: Returns 
    	--          - MinCur if the Nth parameter corresponds to
    	--          a minimum of the radius of curvature.
    	--          - MaxCur if the Nth parameter corresponds to
    	--          a maximum of the radius of curvature.    
    	--          - Inflection if the parameter corresponds to
    	--          a point of inflection.
    raises
    	OutOfRange from Standard
	---Purpose: raises if N not in the range [1,NbPoints()] 
    is static;	    
    
fields
    theParams : SequenceOfReal    from TColStd;
    theTypes  : SequenceOfCIType  from LProp;

end CurAndInf;