-- File:	DsgPrs_OffsetPresentation.cdl
-- Created:	Wed Sep 18 17:27:47 1996
-- Author:	Jacques MINOT
--		<jmi@anotax.paris1.matra-dtv.fr>
---Copyright:	 Matra Datavision 1996

class OffsetPresentation from DsgPrs

        ---Purpose: A framework to define display of offsets.
uses
    Presentation from Prs3d,
    Pnt from gp,
    Dir from gp,
    Drawer from Prs3d,
    ExtendedString from TCollection,
    ArrowSide from DsgPrs
is  
    Add( myclass; aPresentation: Presentation from Prs3d;
    	    	  aDrawer: Drawer from Prs3d;
		  aText: ExtendedString from TCollection;
                  AttachmentPoint1: Pnt from gp;
		  AttachmentPoint2: Pnt from gp;
		  aDirection: Dir from gp;
		  aDirection2: Dir from gp;
		  OffsetPoint: Pnt from gp);
	---Purpose: Defines the display of elements showing offset shapes.
    	-- These include the two points of attachment
    	-- AttachmentPoint1 and AttachmentPoint1, the two
    	-- directions aDirection and aDirection2, and the offset point OffsetPoint.
    	-- These arguments are added to the presentation
    	-- object aPresentation. Their display attributes are
    	-- defined by the attribute manager aDrawer.

    AddAxes( myclass; aPresentation: Presentation from Prs3d;
    	    	  aDrawer: Drawer from Prs3d;
		  aText: ExtendedString from TCollection;
                  AttachmentPoint1: Pnt from gp;
		  AttachmentPoint2: Pnt from gp;
		  aDirection: Dir from gp;
		  aDirection2: Dir from gp;
		  OffsetPoint: Pnt from gp);
	---Purpose: draws the representation of axes alignement Constraint
	--          between the point AttachmentPoint1 and the
	--          point AttachmentPoint2, along direction 
	--          aDirection, using the offset point OffsetPoint.

end OffsetPresentation;