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-- File: Prs3d_Root.cdl
-- Created: Tue Dec 15 18:07:36 1992
-- Author: Jean Louis FRENKEL
-- <jlf@mastox>
---Copyright: Matra Datavision 1992
deferred class Root from Prs3d
---Purpose: A root class for the standard presentation algorithms
-- of the StdPrs package.
--
uses
Presentation from Prs3d,
Structure from Graphic3d,
Group from Graphic3d
is
CurrentGroup(myclass; Prs3d: Presentation from Prs3d) returns Group from Graphic3d;
---Purpose: Returns the current group of primititves inside graphic
-- objects in the display.
-- A group also contains the attributes whose ranges are
-- limited to the primitives in it.
NewGroup (myclass; Prs3d: Presentation from Prs3d ) returns Group from Graphic3d ;
---Purpose: Returns the new group of primitives inside graphic
-- objects in the display.
-- A group also contains the attributes whose ranges are limited to the primitives in it.
end Root from Prs3d;
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