-- File:	BRepOffset_Offset.cdl
-- Created:	Thu Oct 19 14:54:41 1995
-- Author:	Bruno DUMORTIER
--		<dub@fuegox>
---Copyright:	 Matra Datavision 1995


class Offset from BRepOffset 

	---Purpose: class for the creation of Offseting.

uses
    
    Status              from BRepOffset,
    Shape               from TopoDS,
    Face                from TopoDS,
    Edge                from TopoDS,
    Vertex              from TopoDS,
    ListOfShape         from TopTools,
    DataMapOfShapeShape from TopTools, 
    Shape               from GeomAbs, 
    JoinType            from GeomAbs

is

    Create returns Offset from BRepOffset;

    Create( Face   : Face from TopoDS;
    	    Offset : Real from Standard;
	    OffsetOutside : Boolean from Standard = Standard_True;
	    JoinType      : JoinType from GeomAbs = GeomAbs_Arc)
	---Purpose: 
    returns Offset from BRepOffset;

    Create( Face    : Face                from TopoDS;
    	    Offset  : Real                from Standard;
    	    Created : DataMapOfShapeShape from TopTools;
	    OffsetOutside : Boolean from Standard = Standard_True; 
	    JoinType      : JoinType from GeomAbs = GeomAbs_Arc)
	---Purpose: This method will be  called when you want to share
	--          the  edges  soon generated  from  an other  face.
	--          e.g. when two faces are  tangents the common  edge
	--          will generate only one edge ( no pipe).
	--          
	--          The Map  will be fill  as  follow: 
	--          
	--          Created(E) = E'
	--          with: E  = an edge of <Face> 
	--                E' = the image of E in the offseting  of 
	--                     another  face  sharing E  with a
	--                     continuity at least G1
	--          
    returns Offset from BRepOffset;

    Create( Path      : Edge    from TopoDS;
    	    Edge1     : Edge    from TopoDS;
	    Edge2     : Edge    from TopoDS;
	    Offset    : Real    from Standard;
            Polynomial: Boolean from Standard = Standard_False; 
            Tol       : Real    from Standard =  1.0e-4; 
            Conti     : Shape   from GeomAbs  =  GeomAbs_C1)
	---Purpose: 
    returns Offset from BRepOffset;
    
    Create( Path      : Edge    from TopoDS;
    	    Edge1     : Edge    from TopoDS;
	    Edge2     : Edge    from TopoDS;
	    Offset    : Real    from Standard;
    	    FirstEdge : Edge    from TopoDS;
    	    LastEdge  : Edge    from TopoDS;
    	    Polynomial: Boolean from Standard = Standard_False; 
            Tol       : Real    from Standard =  1.0e-4; 
            Conti     : Shape   from GeomAbs  =  GeomAbs_C1)
	---Purpose: 
    returns Offset from BRepOffset;
    
    Create( Vertex    : Vertex      from TopoDS;
    	    LEdge     : ListOfShape from TopTools;
    	    Offset    : Real        from Standard;
    	    Polynomial: Boolean     from Standard = Standard_False; 
            Tol       : Real        from Standard =  1.0e-4; 
            Conti     : Shape       from GeomAbs  =  GeomAbs_C1)
	---Purpose: Tol and Conti are only used if Polynomial is True
	--          (Used to perfrom the approximation)
    returns Offset from BRepOffset;
    
    Init( me     : in out;
    	  Face   : Face from TopoDS;
    	  Offset : Real from Standard;
	  OffsetOutside : Boolean from Standard = Standard_True; 
	  JoinType      : JoinType from GeomAbs = GeomAbs_Arc)
	---Purpose: 
    is static;
    
    Init( me      : in out;
    	  Face    : Face                from TopoDS;
    	  Offset  : Real                from Standard;
    	  Created : DataMapOfShapeShape from TopTools; 
	  OffsetOutside : Boolean from Standard = Standard_True; 
	  JoinType      : JoinType from GeomAbs = GeomAbs_Arc)
	---Purpose: 
    is static;
    
    Init( me : in out;
    	  Path      : Edge    from TopoDS;
    	  Edge1     : Edge    from TopoDS;
	  Edge2     : Edge    from TopoDS;
	  Offset    : Real    from Standard;
          Polynomial: Boolean from Standard = Standard_False; 
          Tol       : Real    from Standard =  1.0e-4; 
          Conti     : Shape   from GeomAbs  =  GeomAbs_C1)
	---Purpose: 
    is static;
    
    Init( me : in out;
    	  Path      : Edge    from TopoDS;
    	  Edge1     : Edge    from TopoDS;
	  Edge2     : Edge    from TopoDS;
	  Offset    : Real    from Standard;
    	  FirstEdge : Edge    from TopoDS;
    	  LastEdge  : Edge    from TopoDS;
          Polynomial: Boolean from Standard = Standard_False; 
          Tol       : Real    from Standard =  1.0e-4; 
          Conti     : Shape   from GeomAbs  =  GeomAbs_C1)
	---Purpose: 
    is static;
    
    Init( me: in out;
    	  Vertex    : Vertex      from TopoDS;
    	  LEdge     : ListOfShape from TopTools;
    	  Offset    : Real        from Standard;
          Polynomial: Boolean     from Standard = Standard_False; 
          Tol       : Real        from Standard =  1.0e-4; 
          Conti     : Shape       from GeomAbs  =  GeomAbs_C1)
	---Purpose: Tol and Conti are only used if Polynomial is True
	--          (Used to perfrom the approximation)
    is static;
    
    Init( me     : in out;
    	  Edge   : Edge from TopoDS;
	  Offset : Real from Standard)
	---Purpose: Only used in Rolling Ball. Pipe on Free Boundary
    is static;

    InitialShape(me)
	---C++: return const &
	---C++: inline
    returns Shape from TopoDS;
    
    	
    Face( me)
	---C++: return const &
    returns Face from TopoDS;

    Generated(me; Shape : Shape from TopoDS)
	---Purpose: 
    returns Shape from TopoDS;

    Status( me) 
    	---Purpose: 
    returns Status from BRepOffset;

fields
    
    myShape  : Shape               from TopoDS;
    myStatus : Status              from BRepOffset;
    myFace   : Face                from TopoDS;
    myMap    : DataMapOfShapeShape from TopTools;

end Offset;