-- File:	BndLib_AddSurface.cdl
-- Created:	Mon Jul 24 14:17:25 1995
-- Author:	Modelistation
--		<model@metrox>
---Copyright:	 Matra Datavision 1995


class AddSurface from BndLib 

       	---Purpose: computes the box from a surface 
    	-- Functions to add a surface to a bounding box.
    	--  The surface is defined from a Geom surface.
uses Box     from Bnd,
     Surface from Adaptor3d


is
    Add(myclass; S   :        Surface from Adaptor3d; 
    	    	 Tol :        Real    from Standard; 
    	    	 B   : in out Box     from Bnd);

    	---Purpose: Adds to the bounding box B the surface S
    	-- B is then enlarged by the tolerance value Tol.
    	-- Note: depending on the type of curve, one of the following
    	-- representations of the surface S is used to include it in the bounding box B:
    	-- -   an exact representation if S is built from a plane, a
    	--   cylinder, a cone, a sphere or a torus,
    	-- -   the poles of the surface if S is built from a Bezier
    	--   surface or a BSpline surface,
    	-- -   the points of an approximation of the surface S in
    	--   cases other than offset surfaces;
    	-- -   in the case of an offset surface, the basis surface is first
    	--   included according to the previous rules; then the
    	--   bounding box is enlarged by the offset value.
    	--   Warning
    	-- Do not use these functions to add a non-finite surface to
    	-- the bounding box B.
    	-- If UMin, UMax, VMin or VMax is an infinite value B will become WholeSpace.
    	-- S is an adapted surface, that is, an object which is an interface between:
    	-- -   the services provided by a surface from the package Geom
    	-- -   and those required of the surface by the computation algorithm.
    	--   The adapted surface is created in the following way:
    	--    Handle(Geom_Surface) mysurface = ... ;
    	--    GeomAdaptor_Surface S(mysurface);
    	-- The bounding box B is then enlarged by adding this surface:
    	--    Bnd_Box B;
    	-- // ...
    	--    Standard_Real Tol = ... ;
    	--    AddSurface::Add ( S, Tol, B );
    
    Add(myclass; S                   : Surface from Adaptor3d; 
    	    	 UMin,UMax,VMin,VMax : Real    from Standard;
    	       	 Tol                 : Real    from Standard; 
    	    	 B                   : in out  Box from Bnd);
    	---Purpose: Adds to the bounding box B the surface S
    	-- the patch of the surface S limited in the u parametric
    	--   direction by the two parameter values UMin, UMax, and
    	--   in the v parametric direction by the two parameter
    	--   values VMin, VMax.
    	-- Note: depending on the type of curve, one of the following
    	-- representations of the surface S is used to include it in the bounding box B:
    	-- -   an exact representation if S is built from a plane, a
    	--   cylinder, a cone, a sphere or a torus,
    	-- -   the poles of the surface if S is built from a Bezier
    	--   surface or a BSpline surface,
    	-- -   the points of an approximation of the surface S in
    	--   cases other than offset surfaces;
    	-- -   in the case of an offset surface, the basis surface is first
    	--   included according to the previous rules; then the
    	--   bounding box is enlarged by the offset value.
    	--   Warning
    	-- Do not use these functions to add a non-finite surface to
    	-- the bounding box B.
    	-- If UMin, UMax, VMin or VMax is an infinite value B will become WholeSpace.
    	-- S is an adapted surface, that is, an object which is an interface between:
    	-- -   the services provided by a surface from the package Geom
    	-- -   and those required of the surface by the computation algorithm.
    	--   The adapted surface is created in the following way:
    	--    Handle(Geom_Surface) mysurface = ... ;
    	--    GeomAdaptor_Surface S(mysurface);
    	-- The bounding box B is then enlarged by adding this surface:
    	--    Bnd_Box B;
    	-- // ...
    	--    Standard_Real Tol = ... ;
    	--    AddSurface::Add ( S, Tol, B );
end AddSurface;