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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
// Created on: 1993-07-22
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// Created by: Isabelle GRIGNON
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// Copyright (c) 1993-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _BRepBndLib_HeaderFile
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#define _BRepBndLib_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Boolean.hxx>
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class TopoDS_Shape;
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class Bnd_Box;
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//! This package provides the bounding boxes for curves
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//! and surfaces from BRepAdaptor.
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//! Functions to add a topological shape to a bounding box
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class BRepBndLib
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Adds the shape S to the bounding box B.
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//! More precisely are successively added to B:
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//! - each face of S; the triangulation of the face is used if it exists,
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//! - then each edge of S which does not belong to a face,
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//! the polygon of the edge is used if it exists
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//! - and last each vertex of S which does not belong to an edge.
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//! After each elementary operation, the bounding box B is
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//! enlarged by the tolerance value of the relative sub-shape.
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//! When working with the triangulation of a face this value of
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//! enlargement is the sum of the triangulation deflection and
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//! the face tolerance. When working with the
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//! polygon of an edge this value of enlargement is
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//! the sum of the polygon deflection and the edge tolerance.
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//! Warning
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//! - This algorithm is time consuming if triangulation has not
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//! been inserted inside the data structure of the shape S.
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//! - The resulting bounding box may be somewhat larger than the object.
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Standard_EXPORT static void Add (const TopoDS_Shape& S, Bnd_Box& B, const Standard_Boolean useTriangulation = Standard_True);
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//! Adds the shape S to the bounding box B.
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//! This is a quick algorithm but only works if the shape S is
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//! composed of polygonal planar faces, as is the case if S is
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//! an approached polyhedral representation of an exact
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//! shape. Pay particular attention to this because this
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//! condition is not checked and, if it not respected, an error
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//! may occur in the algorithm for which the bounding box is built.
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//! Note that the resulting bounding box is not enlarged by the
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//! tolerance value of the sub-shapes as is the case with the
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//! Add function. So the added part of the resulting bounding
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//! box is closer to the shape S.
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Standard_EXPORT static void AddClose (const TopoDS_Shape& S, Bnd_Box& B);
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protected:
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private:
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};
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#endif // _BRepBndLib_HeaderFile
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