-- File:	BRepMAT2d_Explorer.cdl
-- Created:	Tue Oct  4 09:03:34 1994
-- Author:	Yves FRICAUD
--		<dub@fuegox>
---Copyright:	 Matra Datavision 1994


class Explorer from BRepMAT2d 

	---Purpose: Construct an explorer from wires, face, set of curves
	--          from Geom2d to compute the bisecting Locus.

uses
    SequenceOfCurve             from TColGeom2d,
    SequenceOfSequenceOfCurve   from MAT2d,
    SequenceOfBoolean           from TColStd,
    Curve                       from Geom2d,
    Wire                        from TopoDS,
    Face                        from TopoDS,
    Shape                       from TopoDS,
    IndexedDataMapOfShapeShape  from TopTools

is
    Create returns Explorer from BRepMAT2d;
    
    Create (aFace : Face from TopoDS) returns Explorer from BRepMAT2d;
    
    Clear (me : in out)
	--- Purpose : Clear the contents of <me>.    
    is static;   
    
---Category: Construction from a face
    
    Perform ( me : in out ;aFace : Face from TopoDS)
    is static;
    
-- Modified by Sergey KHROMOV - Tue Nov 26 15:48:41 2002  Begin
--   Correction of a face. Creation of a new face where all wires are 
--   connected in 2d.

--    Add  (me : in out; Spine : Wire from TopoDS; aFace : Face from TopoDS)
--    is static private;

    Add  (me : in out; Spine : Wire from TopoDS; aFace : Face from TopoDS; 
    	    	       aNewFace:  in  out  Face  from  TopoDS)
    is static private;
-- Modified by Sergey KHROMOV - Tue Nov 26 15:48:43 2002  End

    ---Purpose: Construction from a set of cuves from Geom2d.
    -- 	        Assume  the   orientation  of  the  closed   lines are
    --          compatible. (ie if A is in B, the orientation of A and B
    --          has to be different.
    --          
    --          Assume the explo contains only lines located in the 
    --          area where the bisecting locus will be computed.
    --          
    --          Assume a line don't cross itself or an other line.
    --          
    --          A contour has to be construct in adding each curve in
    --          respect to the sense of the contour.
    --          
    --          afirst point of a curve in a contour is equal to the last
    --          point of the precedent curve.
    --          
    --          No  control of this  rules is done in the construction 
    --          of the explorer
    
-- Modified by Sergey KHROMOV - Tue Nov 26 17:19:09 2002  Begin
--This method is useless. All its functionality is 
--in the previous method Add(..) now.
--    CheckConnection  (me : in out)
--    is static private;
-- Modified by Sergey KHROMOV - Tue Nov 26 17:19:09 2002  End
    
    NewContour (me : in out)
    is static  private;
    
    Add (me : in out ; aCurve : Curve from Geom2d)
    	--- Purpose : Add the curve <aCurve> at me.
    is static private;
    
---Category: Querying
                 
    NumberOfContours(me) returns Integer
    	--- Purpose : Returns the Number of contours.
    is static;
    
    NumberOfCurves(me ; IndexContour : Integer) returns Integer
    	--- Purpose : Returns the Number of Curves in the Contour  number 
    	--            <IndexContour>.
    is static;
    
    Init(me : in out ; IndexContour : Integer)
	--- Purpose : Initialisation of  an Iterator on  the curves of
	--            the Contour number <IndexContour>.           
    is static;
    
    More(me) returns Boolean from Standard
    	--- Purpose : Return False if there is no more curves on the Contour
       	--            initialised by the method Init.
    is static;
    
    Next(me : in out)
	--- Purpose  : Move to the next curve of the current Contour.
    is static;
    
    Value(me) returns Curve from Geom2d
        --- Purpose : Returns the current curve on the current Contour.
    is static;
    
    Shape (me) returns Shape from TopoDS
    is static ;	
	    
    Contour (me; IndexContour : Integer from Standard) 
    returns SequenceOfCurve from TColGeom2d
    ---C++: return const&
    is static;

-- Modified by Sergey KHROMOV - Tue Nov 26 15:51:56 2002 
    IsModified(me;  aShape:  Shape  from  TopoDS) 
    returns  Boolean  from  Standard 
    is  static;

    ModifiedShape(me;  aShape:  Shape  from  TopoDS) 
        --- Purpose : If the shape is not modified, returns the shape itself.
    returns  Shape from TopoDS 
    is  static;

    GetIsClosed (me) 
    returns SequenceOfBoolean from TColStd
    ---C++: return const&
    is static;
-- Modified by Sergey KHROMOV - Wed Mar  6 16:05:52 2002

fields

    theCurves      : SequenceOfSequenceOfCurve from MAT2d;
    current        : Integer;
    currentContour : Integer;
    myShape        : Shape from TopoDS; 
    myIsClosed     : SequenceOfBoolean  from  TColStd; 
-- Modified by Sergey KHROMOV - Tue Nov 26 15:48:02 2002  Begin
    myModifShapes  : IndexedDataMapOfShapeShape  from  TopTools;
-- Modified by Sergey KHROMOV - Tue Nov 26 15:48:03 2002  End
    
end Explorer;