-- File:	IGESToBRep_BasicCurve.cdl
-- Created:	Mon Mar 14 14:02:21 1994
-- Authors:	Christophe GUYOT & Frederic UNTEREINER
--		<fun@ecolox>
---Copyright:	 Matra Datavision 1994


class BasicCurve  from IGESToBRep inherits CurveAndSurface from IGESToBRep

    ---Purpose : Provides methods to transfer basic geometric curves entities 
    --           from IGES to CASCADE.
    --           These can be :
    --           * Circular arc
    --           * Conic arc
    --           * Spline curve
    --           * BSpline curve
    --           * Line
    --           * Copious data
    --           * Point
    --           * Transformation matrix

uses   

    CurveAndSurface      from IGESToBRep,
    IGESEntity           from IGESData,
    BSplineCurve         from IGESGeom,
    CircularArc          from IGESGeom,
    ConicArc             from IGESGeom,
    CopiousData          from IGESGeom,
    Line                 from IGESGeom,
    Point                from IGESGeom,
    SplineCurve          from IGESGeom,
    TransformationMatrix from IGESGeom,
    Curve                from Geom,
    BezierCurve          from Geom,
    BSplineCurve         from Geom,
    TrimmedCurve         from Geom,
    CartesianPoint       from Geom,
    Transformation       from Geom,
    Curve                from Geom2d,
    BezierCurve          from Geom2d,
    BSplineCurve         from Geom2d,
    TrimmedCurve         from Geom2d,
    CartesianPoint       from Geom2d


is

    Create returns BasicCurve;
    ---Purpose : Creates  a tool BasicCurve  ready  to  run, with
    --         epsilons  set  to  1.E-04,  TheModeTopo  to  True,  the
    --         optimization of  the continuity to False.

    Create(CS : CurveAndSurface from IGESToBRep)  returns BasicCurve;
    ---Purpose : Creates a tool BasicCurve ready to run and sets its
    --         fields as CS's.

    Create(eps        : Real;
    	   epsGeom    : Real;
    	   epsCoeff   : Real;
    	   mode       : Boolean; 
	   modeapprox : Boolean; 
    	   optimized  : Boolean)  returns BasicCurve;
    ---Purpose : Creates a tool BasicCurve ready to run.

    TransferBasicCurve     (me    : in out; 
    	    	    	    start : IGESEntity from IGESData)
    	returns mutable Curve from Geom;
    ---Purpose :  Transfert  a  IGESEntity which  answer True  to  the
    --         member : IGESToBRep::IsBasicCurve(IGESEntity).  If this
    --         Entity could not be converted, this member returns a NullEntity.
            
           
    Transfer2dBasicCurve   (me    : in out; 
    	    	    	    start : IGESEntity from IGESData) 
    	returns mutable Curve from Geom2d;
    ---Purpose :  Transfert  a  IGESEntity which  answer True  to  the
    --         member : IGESToBRep::IsBasicCurve(IGESEntity).
    --         The IGESEntity must be a curve UV and its associed TRSF must
    --         be planar .If this Entity could not be converted, this member 
    --         returns a NullEntity.
	
    TransferBSplineCurve   (me    : in out;
    	    	    	    start : BSplineCurve from IGESGeom)
    	returns mutable Curve from Geom;
	
    Transfer2dBSplineCurve (me    : in out; 
    	    	    	    start : BSplineCurve from IGESGeom)
    	returns mutable Curve from Geom2d;
	
    TransferCircularArc    (me    : in out; 
    	    	    	    start : CircularArc from IGESGeom)
    	returns mutable Curve from Geom;
	
    Transfer2dCircularArc  (me    : in out; 
    	    	    	    start : CircularArc from IGESGeom)
    	returns mutable Curve from Geom2d;
	
    TransferConicArc       (me    : in out; 
    	    	    	    start : ConicArc from IGESGeom)
    	returns mutable Curve from Geom;
	
    Transfer2dConicArc     (me    : in out; 
    	    	    	    start : ConicArc from IGESGeom)
    	returns mutable Curve from Geom2d;

    TransferCopiousData    (me    : in out; 
    	    	    	    start : CopiousData from IGESGeom)
    	returns mutable BSplineCurve from Geom;
	
    Transfer2dCopiousData  (me    : in out; 
    	    	    	    start : CopiousData from IGESGeom)
    	returns mutable BSplineCurve from Geom2d;

    TransferLine           (me    : in out; 
    	    	    	    start : Line from IGESGeom)
    	returns mutable Curve from Geom;
	
    Transfer2dLine         (me    : in out; 
    	    	    	    start : Line from IGESGeom)
    	returns mutable Curve from Geom2d;

    TransferSplineCurve    (me    : in out; 
    	    	    	    start : SplineCurve from IGESGeom)
       	returns mutable BSplineCurve from Geom;
	
    Transfer2dSplineCurve  (me    : in out; 
    	    	    	    start : SplineCurve from IGESGeom)
    	returns mutable BSplineCurve from Geom2d;

    TransferTransformation (me    : in out;
    	    	    	    start : TransformationMatrix from IGESGeom)
    	returns mutable Transformation from Geom;
	
	
end BasicCurve;