-- File:	BRepMAT2d_LinkTopoBilo.cdl
-- Created:	Fri Oct  7 14:30:11 1994
-- Author:	Yves FRICAUD
--		<yfr@nonox>
---Copyright:	 Matra Datavision 1994



class LinkTopoBilo from BRepMAT2d 

	---Purpose:Constucts links between the Face of the explorer and
    	--         the BasicElts contained in the bisecting locus. 

uses
    Shape                            from TopoDS,
    Wire                             from TopoDS,	    
    Explorer                         from BRepMAT2d,
    DataMapOfShapeSequenceOfBasicElt from BRepMAT2d,
    DataMapOfBasicEltShape           from BRepMAT2d,
    BisectingLocus                   from BRepMAT2d,
    BasicElt                         from MAT

raises
    ConstructionError from Standard
    
is

    Create  returns LinkTopoBilo from BRepMAT2d;    

    Create( Explo : Explorer       from BRepMAT2d; 
    	    BiLo  : BisectingLocus from BRepMAT2d)	
    returns LinkTopoBilo from BRepMAT2d    
	---Purpose: Constructs the links Between S and BiLo.
	--          
    raises
    	ConstructionError from Standard;
	---Purpose: raises if <S> is not a face.
    
    
    Perform( me    : in out; 
	     Explo : Explorer       from BRepMAT2d; 
    	     BiLo  : BisectingLocus from BRepMAT2d)  
    	---Purpose: Constructs the links Between S and BiLo.
 	--     
    raises
    	ConstructionError from Standard
	---Purpose: raises if <S> is not a face or a wire.         
    is static;
    
    
    Init (me : in out; S : Shape from TopoDS)
    	---Purpose: Initialise the Iterator on <S>
    	--          <S> is an edge or a vertex of the initial
    	--          wire or face.
    raises
    	ConstructionError from Standard
	---Purpose: raises if <S> is not an edge or a vertex.
    is static;
    
    
    More (me : in out)	returns Boolean from Standard
    	---Purpose: Returns True if there  is a current  BasicElt.
    is static;
    
    
    Next (me : in out)    	
    	---Purpose: Proceed to the next BasicElt.
    is static;
    
    
    Value(me) returns BasicElt from MAT	
    	---Purpose: Returns the current BasicElt.
    is static;
    
    GeneratingShape (me ; aBE : BasicElt from MAT)
	---Purpose: Returns the Shape linked to <aBE>.
    returns Shape from TopoDS
    is static;
    
    LinkToWire (me           : in out; 
    	        W            : Wire           from TopoDS;
		Explo        : Explorer       from BRepMAT2d;    
                IndexContour : Integer        from Standard;
                BiLo         : BisectingLocus from BRepMAT2d) 
    is static private;
    

fields
    myMap      : DataMapOfShapeSequenceOfBasicElt from BRepMAT2d;
    myBEShape  : DataMapOfBasicEltShape           from BRepMAT2d;
    myKey      : Shape                            from TopoDS;
    current    : Integer                          from Standard; 
    isEmpty    : Boolean                          from Standard;
    
end ;