-- File:      BlendFunc_ChamfInv.cdl
-- Created:   Thu Jun  6 14:49:31 1996
-- Author:    Stagiaire Xuan Trang PHAMPHU
---Copyright: Matra Datavision 1996


class ChamfInv from BlendFunc

inherits FuncInv from Blend

	---Purpose: 

uses Vector   from math,
     Matrix   from math,
     HCurve2d from Adaptor2d,
     HCurve   from Adaptor3d,
     HSurface from Adaptor3d,
     Corde    from BlendFunc
    
is
    Create(S1,S2: HSurface from Adaptor3d; C: HCurve from Adaptor3d)
    
    	returns ChamfInv from BlendFunc;
	
    Set(me: in out; OnFirst: Boolean from Standard;
    	            COnSurf: HCurve2d from Adaptor2d)

    	;


    GetTolerance(me; Tolerance: out Vector from math; Tol: Real from Standard)
    
    	;


    GetBounds(me; InfBound,SupBound: out Vector from math)
    
    	;


    IsSolution(me: in out; Sol: Vector from math; Tol: Real from Standard)
    
    	returns Boolean from Standard
    
    	;


    NbEquations(me)
    	---Purpose: returns the number of equations of the function.
    	returns Integer from Standard
    	is redefined static ;

    Value(me: in out; X: Vector; F: out Vector)
    	---Purpose: computes the values <F> of the Functions for the 
    	--          variable <X>.
    	--          Returns True if the computation was done successfully, 
    	--          False otherwise.

    	returns Boolean from Standard
    	is redefined static ;
    
    
    Derivatives(me: in out; X: Vector; D: out Matrix)
    	---Purpose: returns the values <D> of the derivatives for the 
    	--          variable <X>.
    	--          Returns True if the computation was done successfully, 
    	--          False otherwise.

    returns Boolean from Standard
    is redefined static	;
    
    
    Values(me: in out; X: Vector; F: out Vector; D: out Matrix)
    	---Purpose: returns the values <F> of the functions and the derivatives
    	--          <D> for the variable <X>.
    	--          Returns True if the computation was done successfully, 
    	--          False otherwise.

    returns Boolean from Standard
    	is redefined static ;

-- methodes hors template (en plus du create)

    Set(me: in out; Dist1, Dist2: Real from Standard; Choix: Integer from Standard)

    is static;


fields

    surf1 : HSurface from Adaptor3d;
    surf2 : HSurface from Adaptor3d;
    dis1  : Real from Standard;
    dis2  : Real from Standard;    
    curv  : HCurve from Adaptor3d;
    csurf : HCurve2d from Adaptor2d;
    choix : Integer from Standard;
    first : Boolean from Standard;
    corde1: Corde from BlendFunc;
    corde2: Corde from BlendFunc;
    
end ChamfInv;