-- File:	ShapeAnalysis_TransferParametersProj.cdl
-- Created:	Mon Jun 21 12:53:37 1999
-- Author:	Galina KULIKOVA
--		<gka@nnov.matra-dtv.fr>
---Copyright:	 Matra Datavision 1999


class TransferParametersProj from ShapeAnalysis inherits TransferParameters from ShapeAnalysis

	---Purpose: This tool is used for transferring parameters
	--          from 3d curve of the edge to pcurve and vice versa.
	--          This tool transfers parameters with help of 
    	--          projection points from curve 3d on curve 2d and
	--          vice versa
uses
 
    Edge            from TopoDS,
    Face            from TopoDS,
    HSequenceOfReal from TColStd,
    Location        from TopLoc,
    Curve           from Geom,
    Curve           from Geom2d,
    CurveOnSurface  from Adaptor3d,
    Vertex from TopoDS
is

    Create returns mutable TransferParametersProj from ShapeAnalysis;
    	---Purpose: Creats empty constructor. 
    
    Create(E: Edge from TopoDS; F: Face from TopoDS) 
    returns mutable TransferParametersProj from ShapeAnalysis;
    	---Purpose:
    
    Init(me: mutable; E: Edge from TopoDS; F: Face from TopoDS ) is redefined;
    	---Purpose:
    
    Perform(me: mutable; Papams: HSequenceOfReal from TColStd; To2d: Boolean) 
    returns  HSequenceOfReal from TColStd is redefined;
    	---Purpose: Transfers parameters given by sequence Params from 3d curve
	--          to pcurve (if To2d is True) or back (if To2d is False)
    
    Perform(me: mutable; Param: Real; To2d: Boolean) 
    returns Real is redefined;
    	---Purpose:Transfers parameter given by  Param from 3d curve
	--          to pcurve (if To2d is True) or back (if To2d is False)

    ForceProjection (me: mutable) returns Boolean;
        ---Purpose: Returns modifiable flag forcing projection
	--          If it is False (default), projection is done only
	--          if edge is not SameParameter or if tolerance of edge
	--          is greater than MaxTolerance()
	---C++: return &
    
    TransferRange(me: mutable; newEdge: in out Edge from TopoDS; 
    	    	    	       prevPar: Real;
    	    	    	       currPar: Real;
	    		       Is2d   : Boolean) is redefined;
    	---Purpose: Recomputes range of curves from NewEdge.
    	--	    If Is2d equals True parameters are recomputed by curve2d else by curve3d. 
    
    IsSameRange(me) returns Boolean is redefined;
    	---Purpose: Returns False;
	--          
    
    PreformSegment(me: mutable;Param :Real; To2d :Boolean;
    	    	    	       First :Real; Last :Real)
    returns Real is private;			       

    CopyNMVertex(myclass; theVert: Vertex from TopoDS;
    	    	      toedge: Edge from TopoDS;
    	    	      fromedge: Edge from TopoDS ) returns Vertex from TopoDS;
    	---Purpose: Make a copy of non-manifold vertex theVert 
	--          (i.e. create new  TVertex and replace PointRepresentations for this vertex 
    	--          from fromedge to toedge. Other representations were copied)
    
    CopyNMVertex(myclass; theVert: Vertex from TopoDS;
    	    	      toFace: Face from TopoDS;
    	    	      fromFace: Face from TopoDS ) returns Vertex from TopoDS;
    	---Purpose: Make a copy of non-manifold vertex theVert 
	--          (i.e. create new  TVertex and replace PointRepresentations for this vertex 
    	--          from fromFace to toFace. Other representations were copied)
fields

    myCurve        : Curve from Geom; 
    myCurve2d      : Curve from Geom2d;
    myAC3d         : CurveOnSurface from Adaptor3d;
    myPrecision    : Real;
    myLocation     : Location from TopLoc;
    myForceProj    : Boolean;
    myInitOK       : Boolean;
    
end TransferParametersProj;