-- File:	Contap_ContourGen.cdl
-- Created:	Fri Feb  5 09:39:18 1993
-- Author:	Jacques GOUSSARD
--		<jag@topsn2>
---Copyright:	 Matra Datavision 1993


generic class ContourGen from Contap
    (TheVertex      as any;
     TheArc         as any;
     TheSurface     as any;
     TheArcTool     as any;  -- as ArcTool     from Contap(TheArc)
     TheSurfaceTool as any;  -- as SurfaceTool from Contap(TheSurface)
     TheContTool    as any;  -- as ContTool    from Contap(TheVertex,TheArc,
                             --                            TheSurface)
     TheTopolTool   as Transient)-- as TopolTool from IntStart(TheVertex,
                                 --                            TheArc)

	---Purpose: 


uses PathPoint               from IntSurf,
     PathPointTool           from IntSurf,
     SequenceOfPathPoint     from IntSurf,
     InteriorPoint           from IntSurf,
     InteriorPointTool       from IntSurf,
     SequenceOfInteriorPoint from IntSurf,
     Pnt                     from gp,
     Vec                     from gp
     

raises NotDone           from StdFail,
       OutOfRange        from Standard,
       ConstructionError from Standard

    class ThePoint instantiates Point from Contap
    	(TheVertex,
	 TheArc);
    
    class TheSequenceOfPoint instantiates Sequence from TCollection
    	(ThePoint); 
	
    class TheHSequenceOfPoint instantiates HSequence from TCollection
    	(ThePoint,TheSequenceOfPoint);


    class TheLine instantiates Line from Contap
    	(TheVertex,
	 TheArc,
	 ThePoint,
	 TheHSequenceOfPoint);
	 

    class TheSequenceOfLine instantiates Sequence from TCollection
    	(TheLine);


    class TheSurfProps instantiates SurfProps from Contap
    	(TheSurface,
	 TheSurfaceTool);


    class TheSurfFunction instantiates SurfFunction from Contap
	(TheSurface,
	 TheSurfaceTool,
	 TheSurfProps from Contap,
         TheContTool);

    class TheArcFunction instantiates ArcFunction from Contap
    	(TheArc,
	 TheSurface,
	 TheArcTool,
    	 TheSurfaceTool,
	 TheSurfProps from Contap,
         TheContTool);


    class TheSearch instantiates SearchOnBoundaries from IntStart
    	(TheVertex,
	 TheArc,
	 TheArcTool,
         TheContTool,
         TheTopolTool,
	 TheArcFunction from Contap);


    class TheIWalking instantiates IWalking from IntWalk
    	(PathPoint               from IntSurf,
         PathPointTool           from IntSurf,
	 SequenceOfPathPoint     from IntSurf,
         InteriorPoint           from IntSurf,
	 InteriorPointTool       from IntSurf,
         SequenceOfInteriorPoint from IntSurf,
	 TheSurface,
         TheSurfaceTool,
	 TheSurfFunction         from Contap);


    class TheSearchInside instantiates SearchInside from IntStart
        (TheSurface,
         TheSurfaceTool,
	 TheTopolTool,
	 TheContTool,
         TheSurfFunction from Contap);

is

    Create
    
    	returns ContourGen from Contap;


    Create(Direction: Vec from gp)
    
    	returns ContourGen from Contap;


    Create(Direction: Vec from gp; Angle: Real from Standard)
    
    	returns ContourGen from Contap;


    Create(Eye: Pnt from gp)
    
    	returns ContourGen from Contap;


    Create(Surf: TheSurface; Domain: TheTopolTool; 
           Direction: Vec from gp)

	---Purpose: Creates the contour in a given direction.

    	returns ContourGen from Contap;


    Create(Surf: TheSurface; Domain: TheTopolTool; 
           Direction: Vec from gp; Angle: Real from Standard)

	---Purpose: Creates the contour in a given direction.

    	returns ContourGen from Contap;


    Create(Surf: TheSurface; Domain: TheTopolTool; 
           Eye: Pnt from gp)

	---Purpose: Creates the contour for a perspective view.

    	returns ContourGen from Contap;


    Perform(me: in out; Surf: TheSurface; Domain: TheTopolTool)

	---Purpose: Creates the contour in a given direction.

    	raises ConstructionError from Standard
    	is static;


    Perform(me: in out; Surf: TheSurface; Domain: TheTopolTool; 
                        Direction: Vec from gp)

	---Purpose: Creates the contour in a given direction.

    	is static;


    Perform(me: in out; Surf: TheSurface; Domain: TheTopolTool; 
                        Direction: Vec from gp; Angle: Real from Standard)

	---Purpose: Creates the contour in a given direction.

    	is static;


    Perform(me: in out; Surf: TheSurface; Domain: TheTopolTool; 
                        Eye: Pnt from gp)

	---Purpose: Creates the contour for a perspective view.

    	is static;


    Init(me: in out; Direction: Vec from gp)
    
    	is static;


    Init(me: in out; Direction: Vec from gp; Angle: Real from Standard)
    
    	is static;


    Init(me: in out; Eye: Pnt from gp)
    
    	is static;


    IsDone(me)
    
    	returns Boolean from Standard
	---C++: inline
	
	is static;


    IsEmpty(me)
    
    	---Purpose: Returns true if the is no line.

    	returns Boolean from Standard
	---C++: inline

    	raises NotDone from StdFail

    	is static;


    NbLines(me)
    
    	returns Integer from Standard
	---C++: inline
	
	raises NotDone from StdFail
	
	is static;
	
	
    Line(me; Index: Integer from Standard)
    
    	returns TheLine from Contap
	---C++: return const& 
	---C++: inline

	raises NotDone    from StdFail,
	       OutOfRange from Standard
	
	is static;


    SurfaceFunction(me : in out)
    returns TheSurfFunction
	---Purpose: Returns    a     reference   on     the   internal
	--          SurfaceFunction.  This is used to compute tangents
	--          on the lines.
        ---C++: return &
	---C++: inline
    is static;


    Perform(me: in out; Domain: TheTopolTool)
			   
	is static private;


    PerformAna(me: in out; Domain: TheTopolTool)
			   
	is static private;


fields

    done     : Boolean           from Standard;
    slin     : TheSequenceOfLine from Contap;
    solrst   : TheSearch         from Contap;
    solins   : TheSearchInside   from Contap;
    mySFunc  : TheSurfFunction   from Contap;
    myAFunc  : TheArcFunction    from Contap;
    modeset  : Boolean           from Standard;

end ContourGen;