-- File:	DsgPrs_DiameterPresentation.cdl
-- Created:	Wed Aug 21 15:29:40 1996
-- Author:	Jacques MINOT
--		<jmi@anotax.paris1.matra-dtv.fr> 
--              modified 12-january-98  by  Sergey ZARITCHNY
--		<szy@orthodox.nnov.matra-dtv.fr> 
---Copyright:	 Matra Datavision 1996

class DiameterPresentation from DsgPrs
        
    	---Purpose: A framework for displaying diameters in shapes.  
        
        
uses
    Presentation from Prs3d,
    Pnt from gp,
    Circ from gp,
    Drawer from Prs3d,
    ArrowSide from DsgPrs,
    ExtendedString from TCollection
    	
is  
    Add( myclass; aPresentation   : Presentation   from Prs3d;
    	    	  aDrawer         : Drawer         from Prs3d;
		  aText           : ExtendedString from TCollection;
                  AttachmentPoint : Pnt            from gp;
		  aCircle         : Circ           from gp; 
	          ArrowSide: ArrowSide             from DsgPrs;
    	    	  IsDiamSymbol    : Boolean        from Standard );
	---Purpose: Draws the diameter of the circle aCircle displayed in
    	-- the presentation aPresentation and with attributes
    	-- defined by the attribute manager aDrawer. The point
    	-- AttachmentPoint defines the point of contact
    	-- between the circle and the diameter presentation.
    	-- The value of the enumeration ArrowSide controls
    	-- whether arrows will be displayed at either or both
    	-- ends of the length. The text aText labels the diameter.
		   

    Add( myclass; aPresentation   : Presentation   from Prs3d;
    	    	  aDrawer         : Drawer         from Prs3d;
		  aText           : ExtendedString from TCollection;
                  AttachmentPoint : Pnt            from gp;
		  aCircle         : Circ           from gp; 
		  uFirst          : Real           from Standard; 
		  uLast           : Real           from Standard;
	          ArrowSide       : ArrowSide      from DsgPrs; 
    	    	  IsDiamSymbol    : Boolean        from Standard);
	---Purpose: Draws the diameter of the arc anArc displayed in the
    	-- presentation aPresentation and with attributes
    	-- defined by the attribute manager aDrawer. The point
    	-- AttachmentPoint defines the point of contact
    	-- between the arc and the diameter presentation. The
    	-- value of the enumeration ArrowSide controls whether
    	-- arrows will be displayed at either or both ends of the
    	-- length. The parameters uFirst and uLast define the
    	-- first and last points of the arc. The text aText labels the diameter.

end DiameterPresentation;