-- File:	BRepAlgo_FaceRestrictor.cdl
-- Created:	Fri Sep  1 10:45:57 1995 
-- Author:	Yves FRICAUD
--		<yfr@nonox>
---Copyright:	 Matra Datavision 1995


class FaceRestrictor from BRepAlgo 

	---Purpose:  Builds all  the faces  limited  with a set of non
	--                 jointing   and     planars     wires.    if
	--          <ControlOrientation> is false  The Wires must have
	--          correct orientations.  Sinon orientation des wires
    	--          de telle sorte que les faces ne soient pas infinies
    	--          et qu'elles soient disjointes.

uses
    Wire                      from TopoDS,
    Face                      from TopoDS,
    ListOfShape               from TopTools,	 
    DataMapOfShapeListOfShape from TopTools
is

    Create returns FaceRestrictor from BRepAlgo;
    
    Init (me                 : in out; 
    	  F                  : Face    from TopoDS; 
    	  Proj               : Boolean from Standard = Standard_False;
    	  ControlOrientation : Boolean from Standard = Standard_False)
    	---Purpose: the surface of <F> will be the the surface of each new
    	--          faces built.
    	--          <Proj> is used to update pcurves on edges if necessary.
    	--          See Add().
    is static;
    
    Add( me : in out;
    	 W  : in out Wire  from TopoDS)
	---Purpose: Add the wire <W> to the set of wires.  
	--          
	--  Warning:
	--          The Wires must be closed.  
	--          
	--          The edges of <W> can be modified if they  have not pcurves  
	--          on the surface <S>  of <F>. In this  case 
	--          if <Proj> is false the first pcurve of  the edge 
	--          is positionned on <S>.
	--          if <Proj> is True ,the Pcurve On <S> is the 
	--          projection of the  curve 3d on <F>.
    is static;
    
    Clear(me : in out)
	---Purpose: Removes all the Wires
    is static;
    
    Perform( me : in out)
	---Purpose: Evaluate all the faces limited by the set of Wires.
    is static;
    
    IsDone( me)
    returns Boolean from Standard
    is static;
    
    More( me)
    returns Boolean from Standard
    is static;
    
    Next( me : in out)
    is static;
    
    Current(me)
    returns Face from TopoDS
    is static;
   
    PerformWithCorrection( me : in out)
	---Purpose: Evaluate all the faces limited by the set of Wires.
    is static private;
    
fields

    myDone    : Boolean     from Standard;
    modeProj  : Boolean     from Standard;
    myFace    : Face        from TopoDS;
    wires     : ListOfShape from TopTools;
    faces     : ListOfShape from TopTools;
    
    myCorrection : Boolean     from Standard;
    keyIsIn      : DataMapOfShapeListOfShape from TopTools;
    keyContains  : DataMapOfShapeListOfShape from TopTools;
    
end FaceRestrictor;