-- File:	ProjLib_Cylinder.cdl
-- Created:	Tue Aug 24 11:11:01 1993
-- Author:	Bruno DUMORTIER
--		<dub@topsn3>
---Copyright:	 Matra Datavision 1993

class Cylinder from ProjLib inherits Projector from ProjLib

	---Purpose: Projects elementary curves on a cylinder.

uses
    CurveType  from GeomAbs,
    Cylinder   from gp,
    Lin        	   from gp,
    Circ       	   from gp,
    Elips      	   from gp,
    Parab      	   from gp,
    Hypr       	   from gp,
    Lin2d      from gp,
    Circ2d     from gp,
    Elips2d    from gp,
    Parab2d    from gp,
    Hypr2d     from gp

raises
    NoSuchObject from Standard

is

    Create returns Cylinder from ProjLib;
	---Purpose: Undefined projection.

    Create(Cyl : Cylinder from gp) returns Cylinder from ProjLib;
	---Purpose: Projection on the cylinder <Cyl>.

    Create(Cyl : Cylinder from gp;
           L   : Lin from gp) returns Cylinder from ProjLib;
	---Purpose: Projection of the line <L> on the cylinder <Cyl>.

    Create(Cyl : Cylinder  from gp;
           C   : Circ from gp) returns Cylinder from ProjLib;
	---Purpose: Projection of the circle <C> on the cylinder <Cyl>.

    Create(Cyl : Cylinder  from gp;
           E   : Elips from gp) returns Cylinder from ProjLib;
	---Purpose: Projection of the ellipse <E> on the cylinder <Cyl>.



    Init(me  : in out;
    	 Cyl : Cylinder from gp)
    is static;
	 
    Project(me : in out;
    	    L  : Lin from gp)
    is redefined;

    Project(me : in out;
    	    C  : Circ from gp)
    is redefined;

    Project(me : in out;
    	    E  : Elips from gp)
    is redefined;

     Project(me : in out;
     	     P  : Parab from gp)
     is redefined;
 
     Project(me : in out;
     	     H  : Hypr from gp)
     is redefined;
	     

fields

    myCylinder : Cylinder from gp;

end Cylinder;