-- Created on: 1994-10-21
-- Created by: Bruno DUMORTIER
-- Copyright (c) 1994-1999 Matra Datavision
-- Copyright (c) 1999-2014 OPEN CASCADE SAS
--
-- This file is part of Open CASCADE Technology software library.
--
-- This library is free software; you can redistribute it and / or modify it
-- under the terms of the GNU Lesser General Public version 2.1 as published
-- by the Free Software Foundation, with special exception defined in the file
-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
-- distribution for complete text of the license and disclaimer of any warranty.
--
-- Alternatively, this file may be used under the terms of Open CASCADE
-- commercial license or contractual agreement.

private class TrimSurfaceTool from BRepFill 

	---Purpose:

uses

    Curve         from Geom2d,
    Curve         from Geom,
    Pnt2d         from gp,
    Face          from TopoDS,
    Edge          from TopoDS,
    SequenceOfPnt from TColgp,
    Shape         from GeomAbs	
    
raises
    NoSuchObject from Standard
    
is

    Create(Bis   : Curve    from Geom2d;
    	   Face1 : Face     from TopoDS;
    	   Face2 : Face     from TopoDS;
    	   Edge1 : Edge     from TopoDS;
    	   Edge2 : Edge     from TopoDS;
           Inv1  : Boolean  from Standard;
	   Inv2  : Boolean  from Standard)
    returns TrimSurfaceTool from BRepFill;


    IntersectWith(me; EdgeOnF1 : in     Edge          from TopoDS;
    	    	      EdgeOnF2 : in     Edge          from TopoDS;
    	    	      Points   : in out SequenceOfPnt from TColgp )
	---Purpose: Intersect <Bis>  with the  projection of the edges
	--          <EdgeOnFi> and returns the intersecting parameters 
	--          on Bis and on the edges
	--          P.X() : Parameter on Bis
	--          P.Y() : Parameter on EdgeOnF1 
	--          P.Z() : Parameter on EdgeOnF2
    raises
    	NoSuchObject from Standard
	---Purpose: raises if <Edge> is not a edge of Face1 or Face2.
    is static;


    IsOnFace(me; Point : Pnt2d from gp)
    returns Boolean from Standard
	---Purpose: returns True if the Line (P, DZ) intersect the Faces
    is static;

    ProjOn(me; Point : Pnt2d from gp;
    	       Edge  : Edge  from TopoDS)
    returns Real from Standard
	---Purpose: returns the parameter of the  point <Point> on the
	--          Edge <Edge>, assuming that the point is on the edge.
    is static;


    Project(me;
    	    U1, U2           :     Real  from Standard;
	    Curve            : out Curve from Geom;
	    PCurve1, PCurve2 : out Curve from Geom2d;
	    myCont           : out Shape from GeomAbs)
	---Purpose: 
    is static;

fields

    myFace1       : Face    from TopoDS;
    myFace2       : Face    from TopoDS;
    myEdge1       : Edge    from TopoDS;
    myEdge2       : Edge    from TopoDS;
    myInv1        : Boolean from Standard;	
    myInv2        : Boolean from Standard;	
    myBis         : Curve   from Geom2d;
    
end TrimSurfaceTool;