-- File:	BRepOffset_MakeOffset.cdl
-- Created:	Thu Oct 26 18:06:41 1995
-- Author:	Yves FRICAUD
--		<yfr@stylox>
---Copyright:	 Matra Datavision 1995


-- Modified by skv - Tue Mar 15 16:17:37 2005
-- Add methods for supporting history.

class MakeOffset from BRepOffset 

	---Purpose: 

uses
    Image                from BRepAlgo,
    AsDes                from BRepAlgo,
    Analyse              from BRepOffset,
    Mode                 from BRepOffset,
    DataMapOfShapeOffset from BRepOffset, 
    Error                from BRepOffset,
    Inter3d              from BRepOffset,
    DataMapOfShapeReal   from TopTools,
    Shape                from TopoDS,
    JoinType             from GeomAbs,
    Face                 from TopoDS,
    Edge                 from TopoDS,
    MapOfShape           from TopTools, 
    ListOfShape          from TopTools,
    MakeLoops            from BRepOffset

is

    Create;
    
    Create ( S            : Shape    from TopoDS;
             Offset       : Real     from Standard;
	     Tol          : Real     from Standard;
	     Mode         : Mode     from BRepOffset = BRepOffset_Skin;
    	     Intersection : Boolean  from Standard   = Standard_False;
	     SelfInter    : Boolean  from Standard   = Standard_False;
             Join         : JoinType from GeomAbs    = GeomAbs_Arc;
	     Thickening   : Boolean  from Standard   = Standard_False)
    returns MakeOffset from BRepOffset;	     
	     
---Category: Initialization.

    Initialize (me : in out;
    	        S            : Shape    from TopoDS;
                Offset       : Real     from Standard;
		Tol          : Real     from Standard;
	        Mode         : Mode     from BRepOffset = BRepOffset_Skin;
    	        Intersection : Boolean  from Standard   = Standard_False;
		SelfInter    : Boolean  from Standard   = Standard_False;
                Join         : JoinType from GeomAbs    = GeomAbs_Arc; 
		Thickening   : Boolean  from Standard   = Standard_False)
    is static;
    
    Clear (me : in out) 
    is static;

    AddFace (me : in out; F  : Face from TopoDS) is static;
    	---Purpose: Add Closing Faces,  <F>  has to be  in  the initial
    	--          shape S.
      
    SetOffsetOnFace (me  : in out; 
    	    	     F   : Face from TopoDS;
    	    	     Off : Real from Standard) is static;
    	---Purpose: set the offset <Off> on the Face <F> 

    
---Category: Computation.
    
    MakeOffsetShape (me : in out) is static;
    
    MakeThickSolid  (me : in out) is static;
    
---Category: Querying.
           
    GetAnalyse(me) 
    	---C++: return const &
    returns Analyse from BRepOffset
    is static;

    IsDone (me) returns Boolean from Standard
    is static;
    
    Shape (me) 
    	---C++: return const &
    returns Shape from TopoDS
    is static;

    Error (me) returns Error from BRepOffset;
    	---Purpose: returns information if IsDone() = FALSE.
 			    

    OffsetFacesFromShapes (me)
	---Purpose: Returns <Image> containing links between initials
 	--          shapes and offset faces.
 	---C++: return const &
    returns Image from BRepAlgo
    is static;    
    
-- Modified by skv - Tue Mar 15 16:17:37 2005 Begin
-- Query offset join type.

    GetJoinType(me) 
    	---Purpose: Returns myJoin.
    returns JoinType from GeomAbs 
    is static;
 
-- Add methods for supporting history.

    OffsetEdgesFromShapes (me)
	---Purpose: Returns <Image> containing links between initials
 	--          shapes and offset edges.
 	---C++: return const &
    returns Image from BRepAlgo
    is static;    
    
-- Modified by skv - Tue Mar 15 16:17:37 2005 End

    ClosingFaces (me)   
    	---Purpose: Returns the list of closing faces stores by AddFace 
	---C++: return const &
    returns MapOfShape from TopTools
    is static;

---Category: private methods

    BuildOffsetByArc ( me : in out )
    is static private; 
    
    BuildOffsetByInter ( me : in out )
    is static private;
       
    SelfInter  (me    : in out ; 
    	        Modif : in out MapOfShape from TopTools)
    is static private;		
    
    Intersection3D (me        : in out;
    	    	    Inter     : in out Inter3d from BRepOffset)
    is static private;		    
		    
    Intersection2D ( me       : in out ;
                     Modif    : MapOfShape from TopTools;
		     NewEdges : MapOfShape from TopTools)
    is static private;
    
    MakeLoops ( me    : in out ;
                Modif : in out MapOfShape from TopTools)
    is static private;

    MakeLoopsOnContext ( me    : in out ;
                         Modif : in out MapOfShape from TopTools)
    is static private;
    
    MakeFaces ( me    : in out ;
                Modif : in out MapOfShape from TopTools)
    is static private;
    
    MakeShells (me    : in out )
    is static private;

    SelectShells (me : in out)
    is static private;
	
    EncodeRegularity( me : in out)
    is static private;

    MakeSolid (me : in out)
    is static private;
    
    ToContext (me    : in out;
    	       MapSF : in out DataMapOfShapeOffset from BRepOffset)
    is static private;	
    
    UpdateFaceOffset (me: in out) 
	---Purpose: Private method use to update the map face<->offset
    is static private; 
     
    CorrectConicalFaces (me: in out)
	---Purpose: Private method used to correct degenerated edges on conical faces
    is static private; 

    MakeMissingWalls (me: in out)
	---Purpose: Private method used to build walls for thickening the shell
    is static private; 

fields

    myOffset         : Real       from Standard;
    myTol            : Real       from Standard;
    myShape          : Shape      from TopoDS;     -- Initial
    myMode           : Mode       from BRepOffset;
    myInter          : Boolean    from Standard;
    mySelfInter      : Boolean    from Standard;
    myJoin           : JoinType   from GeomAbs; 
    myThickening     : Boolean    from Standard;
     
    myFaceOffset     : DataMapOfShapeReal from TopTools;
    
    myFaces          : MapOfShape from TopTools;
    myAnalyse        : Analyse	  from BRepOffset;
    
    myOffsetShape    : Shape       from TopoDS;       -- Result
    myInitOffsetFace : Image       from BRepAlgo;
    myInitOffsetEdge : Image       from BRepAlgo;
    myImageOffset    : Image       from BRepAlgo; 
    myWalls          : ListOfShape from TopTools;
    myAsDes          : AsDes       from BRepAlgo;
 
    myDone           : Boolean  from Standard;
    myError          : Error    from BRepOffset;
    
    myMakeLoops      : MakeLoops from BRepOffset;
    
end MakeOffset;