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-- File: Bnd.cdl
-- Created: Tue Jan 8 09:53:22 1991
-- Author: Didier Piffault
-- <rle@topsn3>
---Copyright: Matra Datavision 1991, 1992
--- Modified by hl1 (juillet 96) : ajout de SeqOfBox
--------------------------------------------------------
--- I n f o r m a t i o n ---
--- ---
--- The Bnd_Tool class is now in the package Intf. ---
--------------------------------------------------------
package Bnd
---Purpose: Supports the Boundings Volumes. A Bounding Volume
-- is used to bound a shape to optimising algorithms.
-- If a point is outside the Bounding Volume of a
-- shape it is also outside the shape. The contrary
-- is not necessarily true.
--
-- Various classes are then implemented to describe
-- the usual Bounding volumes. Not all classes are
-- implemented.
--
-- in 3D :
-- Box -- Implemented
-- BoundSortBox -- Implemented
--
-- in 2D :
-- Box2d -- Implemented
-- BoundSortBox2d -- Implemented
--
--
---Level : Public.
-- All methods of all classes will be public.
uses Standard,
TCollection,
TColStd,
gp,
MMgt
is class Box;
---Purpose: A box parallel to the main axes.
-- A 3D Bounding.
class Array1OfBox instantiates Array1 from TCollection
(Box from Bnd);
class HArray1OfBox instantiates HArray1 from TCollection
(Box from Bnd,
Array1OfBox from Bnd);
class Sphere;
class Array1OfSphere instantiates Array1 from TCollection
(Sphere from Bnd);
class HArray1OfSphere instantiates HArray1 from TCollection
(Sphere from Bnd,
Array1OfSphere from Bnd);
class Box2d;
---Purpose: A rectangle parallel to the main axes.
-- A 2D Bounding.
class Array1OfBox2d instantiates Array1 from TCollection
(Box2d from Bnd);
class HArray1OfBox2d instantiates HArray1 from TCollection
(Box2d from Bnd,
Array1OfBox2d from Bnd);
class BoundSortBox2d;
---Purpose: A tool to sort a set of Box2d and compare with an
-- other Box2d to find the list of touched items.
class BoundSortBox;
---Purpose: A tool to sort a set of Box and compare with an
-- other Box to find the list of touched items.
class SeqOfBox instantiates Sequence from TCollection (Box from Bnd);
---Purpose: This sequence used to store the bounding boxes of sub-Shapes.
--- Optimized boxes (no Gap, no infinity supported)
generic class B2x;
generic class B3x;
class B2d instantiates B2x from Bnd (Real from Standard);
-- 2D box with double-precision coordinates
class B2f instantiates B2x from Bnd (ShortReal from Standard);
-- 2D box with single-precision coordinates
class B3d instantiates B3x from Bnd (Real from Standard);
-- 3D box with double-precision coordinates
class B3f instantiates B3x from Bnd (ShortReal from Standard);
-- 3D box with single-precision coordinates
end Bnd;
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