/usr/include/oce/BVH_Properties.lxx is in liboce-foundation-dev 0.17.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Created by: Denis BOGOLEPOV
// Copyright (c) 2013-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
// =======================================================================
// function : BVH_Transform
// purpose :
// =======================================================================
template<class T, int N>
BVH_Transform<T, N>::BVH_Transform()
{
//
}
// =======================================================================
// function : BVH_Transform
// purpose :
// =======================================================================
template<class T, int N>
BVH_Transform<T, N>::BVH_Transform (const BVH_MatNt& theTransform)
: myTransform (theTransform)
{
//
}
// =======================================================================
// function : ~BVH_Transform
// purpose :
// =======================================================================
template<class T, int N>
BVH_Transform<T, N>::~BVH_Transform()
{
//
}
// =======================================================================
// function : Transform
// purpose :
// =======================================================================
template<class T, int N>
const typename BVH_Transform<T, N>::BVH_MatNt& BVH_Transform<T, N>::Transform() const
{
return myTransform;
}
namespace BVH
{
template<class T, int N> struct MatrixOp
{
// Not implemented
};
template<class T> struct MatrixOp<T, 4>
{
typedef typename BVH::MatrixType<T, 4>::Type BVH_Mat4t;
static void Inverse (const BVH_Mat4t& theIn,
BVH_Mat4t& theOut)
{
theIn.Inverted (theOut);
}
typedef typename BVH::VectorType<T, 4>::Type BVH_Vec4t;
static BVH_Vec4t Multiply (const BVH_Mat4t& theMat,
const BVH_Vec4t& theVec)
{
BVH_Vec4t aOut = theMat * theVec;
return aOut * static_cast<T> (1.0 / aOut.w());
}
};
}
// =======================================================================
// function : SetTransform
// purpose :
// =======================================================================
template<class T, int N>
void BVH_Transform<T, N>::SetTransform (const BVH_MatNt& theTransform)
{
myTransform = theTransform;
BVH::MatrixOp<T, N>::Inverse (myTransform, myTransformInversed);
}
// =======================================================================
// function : Inversed
// purpose :
// =======================================================================
template<class T, int N>
const typename BVH_Transform<T, N>::BVH_MatNt& BVH_Transform<T, N>::Inversed() const
{
return myTransformInversed;
}
namespace BVH
{
template<class T, int N>
struct UnitVector
{
// Not implemented
};
template<class T>
struct UnitVector<T, 2>
{
typedef typename BVH::VectorType<T, 2>::Type BVH_Vec2t;
static BVH_Vec2t DX()
{
return BVH_Vec2t (static_cast<T> (1.0),
static_cast<T> (0.0));
}
static BVH_Vec2t DY()
{
return BVH_Vec2t (static_cast<T> (0.0),
static_cast<T> (1.0));
}
static BVH_Vec2t DZ()
{
return BVH_Vec2t (static_cast<T> (0.0),
static_cast<T> (0.0));
}
};
template<class T>
struct UnitVector<T, 3>
{
typedef typename BVH::VectorType<T, 3>::Type BVH_Vec3t;
static BVH_Vec3t DX()
{
return BVH_Vec3t (static_cast<T> (1.0),
static_cast<T> (0.0),
static_cast<T> (0.0));
}
static BVH_Vec3t DY()
{
return BVH_Vec3t (static_cast<T> (0.0),
static_cast<T> (1.0),
static_cast<T> (0.0));
}
static BVH_Vec3t DZ()
{
return BVH_Vec3t (static_cast<T> (0.0),
static_cast<T> (0.0),
static_cast<T> (1.0));
}
};
template<class T>
struct UnitVector<T, 4>
{
typedef typename BVH::VectorType<T, 4>::Type BVH_Vec4t;
static BVH_Vec4t DX()
{
return BVH_Vec4t (static_cast<T> (1.0),
static_cast<T> (0.0),
static_cast<T> (0.0),
static_cast<T> (0.0));
}
static BVH_Vec4t DY()
{
return BVH_Vec4t (static_cast<T> (0.0),
static_cast<T> (1.0),
static_cast<T> (0.0),
static_cast<T> (0.0));
}
static BVH_Vec4t DZ()
{
return BVH_Vec4t (static_cast<T> (0.0),
static_cast<T> (0.0),
static_cast<T> (1.0),
static_cast<T> (0.0));
}
};
}
// =======================================================================
// function : Apply
// purpose :
// =======================================================================
template<class T, int N>
BVH_Box<T, N> BVH_Transform<T, N>::Apply (const BVH_Box<T, N>& theBox) const
{
typename BVH_Box<T, N>::BVH_VecNt aSize = theBox.Size();
BVH_Box<T, N> aBox;
for (Standard_Integer aX = 0; aX <= 1; ++aX)
{
for (Standard_Integer aY = 0; aY <= 1; ++aY)
{
for (Standard_Integer aZ = 0; aZ <= 1; ++aZ)
{
typename BVH_Box<T, N>::BVH_VecNt aCorner = theBox.CornerMin() +
BVH::UnitVector<T, N>::DX() * aSize * static_cast<T> (aX) +
BVH::UnitVector<T, N>::DY() * aSize * static_cast<T> (aY) +
BVH::UnitVector<T, N>::DZ() * aSize * static_cast<T> (aZ);
aBox.Add (BVH::MatrixOp<T, N>::Multiply (myTransform, aCorner));
}
}
}
return aBox;
}
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