aabb_3d_disk_3d.h

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/** @file
 *  @author Bram de Greve (bram@cocamware.com)
 *  @author Tom De Muer (tom@cocamware.com)
 *
 *  *** BEGIN LICENSE INFORMATION ***
 *  
 *  The contents of this file are subject to the Common Public Attribution License 
 *  Version 1.0 (the "License"); you may not use this file except in compliance with 
 *  the License. You may obtain a copy of the License at 
 *  http://lass.sourceforge.net/cpal-license. The License is based on the 
 *  Mozilla Public License Version 1.1 but Sections 14 and 15 have been added to cover 
 *  use of software over a computer network and provide for limited attribution for 
 *  the Original Developer. In addition, Exhibit A has been modified to be consistent 
 *  with Exhibit B.
 *  
 *  Software distributed under the License is distributed on an "AS IS" basis, WITHOUT 
 *  WARRANTY OF ANY KIND, either express or implied. See the License for the specific 
 *  language governing rights and limitations under the License.
 *  
 *  The Original Code is LASS - Library of Assembled Shared Sources.
 *  
 *  The Initial Developer of the Original Code is Bram de Greve and Tom De Muer.
 *  The Original Developer is the Initial Developer.
 *  
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 *  Copyright (C) 2004-2022 the Initial Developer.
 *  All Rights Reserved.
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 */
 
#ifndef LASS_GUARDIAN_OF_INCLUSION_PRIM_AABB_3D_DISK_3D_H
#define LASS_GUARDIAN_OF_INCLUSION_PRIM_AABB_3D_DISK_3D_H
 
#include "prim_common.h"
#include "aabb_3d.h"
#include "disk_3d.h"
 
namespace lass
{
namespace prim
{
 
/** @relates lass::prim::Disk3D
 *  @sa lass::prim::Aabb3D
 */
template <typename T> 
Aabb3D<T> aabb(const Disk3D<T>& disk)
{
    typedef typename Disk3D<T>::TPoint TPoint;
    typedef typename Disk3D<T>::TVector TVector;
 
    const TPoint& c = disk.center();
    const TVector n = disk.radius() * disk.normal();
 
    Aabb3D<T> box;
    for (size_t a = 2, b = 0; b < 3; a = b++)
    {
        TVector t;
        t[a] = -n[b];
        t[b] = n[a];
        box += c + t;
        box += c - t;
    }
 
    return box;
}
 
 
 
}
}
 
#endif
 
// EOF