src/DsgPrs/DsgPrs_TangentPresentation.cdl


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-- File:	DsgPrs_TangentPresentation.cdl
-- Created:	Tue Jan 16 14:27:16 1996
-- Author:	Jean-Pierre COMBE
--		<jpi@clipox>
---Copyright:	 Matra Datavision 1996

class TangentPresentation from DsgPrs
    	---Purpose: A framework to define display of tangents.
uses
    Presentation from Prs3d,
    Pnt from gp,
    Dir from gp,
    Drawer from Prs3d
    	
is  
    Add (myclass; aPresentation: Presentation from Prs3d;
    	    	  aDrawer: Drawer from Prs3d;
		  OffsetPoint: Pnt from gp;
		  aDirection: Dir from gp;
    	    	  aLength : Real from Standard);

	---Purpose: Adds the point OffsetPoint, the direction aDirection
    	-- and the length aLength to the presentation object aPresentation.
    	-- The display attributes of the tangent are defined by
    	-- the attribute manager aDrawer.

end TangentPresentation;