850 lines
17 KiB
C
850 lines
17 KiB
C
|
///////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// Copyright (c) 2004-2012, Industrial Light & Magic, a division of Lucas
|
||
|
|
// Digital Ltd. LLC
|
||
|
|
//
|
||
|
|
// All rights reserved.
|
||
|
|
//
|
||
|
|
// Redistribution and use in source and binary forms, with or without
|
||
|
|
// modification, are permitted provided that the following conditions are
|
||
|
|
// met:
|
||
|
|
// * Redistributions of source code must retain the above copyright
|
||
|
|
// notice, this list of conditions and the following disclaimer.
|
||
|
|
// * Redistributions in binary form must reproduce the above
|
||
|
|
// copyright notice, this list of conditions and the following disclaimer
|
||
|
|
// in the documentation and/or other materials provided with the
|
||
|
|
// distribution.
|
||
|
|
// * Neither the name of Industrial Light & Magic nor the names of
|
||
|
|
// its contributors may be used to endorse or promote products derived
|
||
|
|
// from this software without specific prior written permission.
|
||
|
|
//
|
||
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
//
|
||
|
|
///////////////////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef INCLUDED_IMATHBOX_H
|
||
|
|
#define INCLUDED_IMATHBOX_H
|
||
|
|
|
||
|
|
//-------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// class Imath::Box<class T>
|
||
|
|
// --------------------------------
|
||
|
|
//
|
||
|
|
// This class imposes the following requirements on its
|
||
|
|
// parameter class:
|
||
|
|
//
|
||
|
|
// 1) The class T must implement these operators:
|
||
|
|
// + - < > <= >= =
|
||
|
|
// with the signature (T,T) and the expected
|
||
|
|
// return values for a numeric type.
|
||
|
|
//
|
||
|
|
// 2) The class T must implement operator=
|
||
|
|
// with the signature (T,float and/or double)
|
||
|
|
//
|
||
|
|
// 3) The class T must have a constructor which takes
|
||
|
|
// a float (and/or double) for use in initializing the box.
|
||
|
|
//
|
||
|
|
// 4) The class T must have a function T::dimensions()
|
||
|
|
// which returns the number of dimensions in the class
|
||
|
|
// (since its assumed its a vector) -- preferably, this
|
||
|
|
// returns a constant expression.
|
||
|
|
//
|
||
|
|
//-------------------------------------------------------------------
|
||
|
|
|
||
|
|
#include "ImathVec.h"
|
||
|
|
#include "ImathNamespace.h"
|
||
|
|
|
||
|
|
IMATH_INTERNAL_NAMESPACE_HEADER_ENTER
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
class Box
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
//-------------------------
|
||
|
|
// Data Members are public
|
||
|
|
//-------------------------
|
||
|
|
|
||
|
|
T min;
|
||
|
|
T max;
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Constructors - an "empty" box is created by default
|
||
|
|
//-----------------------------------------------------
|
||
|
|
|
||
|
|
Box ();
|
||
|
|
Box (const T &point);
|
||
|
|
Box (const T &minT, const T &maxT);
|
||
|
|
|
||
|
|
//--------------------
|
||
|
|
// Operators: ==, !=
|
||
|
|
//--------------------
|
||
|
|
|
||
|
|
bool operator == (const Box<T> &src) const;
|
||
|
|
bool operator != (const Box<T> &src) const;
|
||
|
|
|
||
|
|
//------------------
|
||
|
|
// Box manipulation
|
||
|
|
//------------------
|
||
|
|
|
||
|
|
void makeEmpty ();
|
||
|
|
void extendBy (const T &point);
|
||
|
|
void extendBy (const Box<T> &box);
|
||
|
|
void makeInfinite ();
|
||
|
|
|
||
|
|
//---------------------------------------------------
|
||
|
|
// Query functions - these compute results each time
|
||
|
|
//---------------------------------------------------
|
||
|
|
|
||
|
|
T size () const;
|
||
|
|
T center () const;
|
||
|
|
bool intersects (const T &point) const;
|
||
|
|
bool intersects (const Box<T> &box) const;
|
||
|
|
|
||
|
|
unsigned int majorAxis () const;
|
||
|
|
|
||
|
|
//----------------
|
||
|
|
// Classification
|
||
|
|
//----------------
|
||
|
|
|
||
|
|
bool isEmpty () const;
|
||
|
|
bool hasVolume () const;
|
||
|
|
bool isInfinite () const;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
//--------------------
|
||
|
|
// Convenient typedefs
|
||
|
|
//--------------------
|
||
|
|
|
||
|
|
typedef Box <V2s> Box2s;
|
||
|
|
typedef Box <V2i> Box2i;
|
||
|
|
typedef Box <V2f> Box2f;
|
||
|
|
typedef Box <V2d> Box2d;
|
||
|
|
typedef Box <V3s> Box3s;
|
||
|
|
typedef Box <V3i> Box3i;
|
||
|
|
typedef Box <V3f> Box3f;
|
||
|
|
typedef Box <V3d> Box3d;
|
||
|
|
|
||
|
|
|
||
|
|
//----------------
|
||
|
|
// Implementation
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<T>::Box()
|
||
|
|
{
|
||
|
|
makeEmpty();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<T>::Box (const T &point)
|
||
|
|
{
|
||
|
|
min = point;
|
||
|
|
max = point;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<T>::Box (const T &minT, const T &maxT)
|
||
|
|
{
|
||
|
|
min = minT;
|
||
|
|
max = maxT;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<T>::operator == (const Box<T> &src) const
|
||
|
|
{
|
||
|
|
return (min == src.min && max == src.max);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<T>::operator != (const Box<T> &src) const
|
||
|
|
{
|
||
|
|
return (min != src.min || max != src.max);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void Box<T>::makeEmpty()
|
||
|
|
{
|
||
|
|
min = T(T::baseTypeMax());
|
||
|
|
max = T(T::baseTypeMin());
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void Box<T>::makeInfinite()
|
||
|
|
{
|
||
|
|
min = T(T::baseTypeMin());
|
||
|
|
max = T(T::baseTypeMax());
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void
|
||
|
|
Box<T>::extendBy(const T &point)
|
||
|
|
{
|
||
|
|
for (unsigned int i = 0; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (point[i] < min[i])
|
||
|
|
min[i] = point[i];
|
||
|
|
|
||
|
|
if (point[i] > max[i])
|
||
|
|
max[i] = point[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void
|
||
|
|
Box<T>::extendBy(const Box<T> &box)
|
||
|
|
{
|
||
|
|
for (unsigned int i = 0; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (box.min[i] < min[i])
|
||
|
|
min[i] = box.min[i];
|
||
|
|
|
||
|
|
if (box.max[i] > max[i])
|
||
|
|
max[i] = box.max[i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<T>::intersects(const T &point) const
|
||
|
|
{
|
||
|
|
for (unsigned int i = 0; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (point[i] < min[i] || point[i] > max[i])
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<T>::intersects(const Box<T> &box) const
|
||
|
|
{
|
||
|
|
for (unsigned int i = 0; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (box.max[i] < min[i] || box.min[i] > max[i])
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline T
|
||
|
|
Box<T>::size() const
|
||
|
|
{
|
||
|
|
if (isEmpty())
|
||
|
|
return T (0);
|
||
|
|
|
||
|
|
return max - min;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline T
|
||
|
|
Box<T>::center() const
|
||
|
|
{
|
||
|
|
return (max + min) / 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<T>::isEmpty() const
|
||
|
|
{
|
||
|
|
for (unsigned int i = 0; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (max[i] < min[i])
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<T>::isInfinite() const
|
||
|
|
{
|
||
|
|
for (unsigned int i = 0; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (min[i] != T::baseTypeMin() || max[i] != T::baseTypeMax())
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<T>::hasVolume() const
|
||
|
|
{
|
||
|
|
for (unsigned int i = 0; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (max[i] <= min[i])
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template<class T>
|
||
|
|
inline unsigned int
|
||
|
|
Box<T>::majorAxis() const
|
||
|
|
{
|
||
|
|
unsigned int major = 0;
|
||
|
|
T s = size();
|
||
|
|
|
||
|
|
for (unsigned int i = 1; i < min.dimensions(); i++)
|
||
|
|
{
|
||
|
|
if (s[i] > s[major])
|
||
|
|
major = i;
|
||
|
|
}
|
||
|
|
|
||
|
|
return major;
|
||
|
|
}
|
||
|
|
|
||
|
|
//-------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Partial class specializations for Imath::Vec2<T> and Imath::Vec3<T>
|
||
|
|
//
|
||
|
|
//-------------------------------------------------------------------
|
||
|
|
|
||
|
|
template <typename T> class Box;
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
class Box<Vec2<T> >
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
//-------------------------
|
||
|
|
// Data Members are public
|
||
|
|
//-------------------------
|
||
|
|
|
||
|
|
Vec2<T> min;
|
||
|
|
Vec2<T> max;
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Constructors - an "empty" box is created by default
|
||
|
|
//-----------------------------------------------------
|
||
|
|
|
||
|
|
Box();
|
||
|
|
Box (const Vec2<T> &point);
|
||
|
|
Box (const Vec2<T> &minT, const Vec2<T> &maxT);
|
||
|
|
|
||
|
|
//--------------------
|
||
|
|
// Operators: ==, !=
|
||
|
|
//--------------------
|
||
|
|
|
||
|
|
bool operator == (const Box<Vec2<T> > &src) const;
|
||
|
|
bool operator != (const Box<Vec2<T> > &src) const;
|
||
|
|
|
||
|
|
//------------------
|
||
|
|
// Box manipulation
|
||
|
|
//------------------
|
||
|
|
|
||
|
|
void makeEmpty();
|
||
|
|
void extendBy (const Vec2<T> &point);
|
||
|
|
void extendBy (const Box<Vec2<T> > &box);
|
||
|
|
void makeInfinite();
|
||
|
|
|
||
|
|
//---------------------------------------------------
|
||
|
|
// Query functions - these compute results each time
|
||
|
|
//---------------------------------------------------
|
||
|
|
|
||
|
|
Vec2<T> size() const;
|
||
|
|
Vec2<T> center() const;
|
||
|
|
bool intersects (const Vec2<T> &point) const;
|
||
|
|
bool intersects (const Box<Vec2<T> > &box) const;
|
||
|
|
|
||
|
|
unsigned int majorAxis() const;
|
||
|
|
|
||
|
|
//----------------
|
||
|
|
// Classification
|
||
|
|
//----------------
|
||
|
|
|
||
|
|
bool isEmpty() const;
|
||
|
|
bool hasVolume() const;
|
||
|
|
bool isInfinite() const;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
//----------------
|
||
|
|
// Implementation
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<Vec2<T> >::Box()
|
||
|
|
{
|
||
|
|
makeEmpty();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<Vec2<T> >::Box (const Vec2<T> &point)
|
||
|
|
{
|
||
|
|
min = point;
|
||
|
|
max = point;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<Vec2<T> >::Box (const Vec2<T> &minT, const Vec2<T> &maxT)
|
||
|
|
{
|
||
|
|
min = minT;
|
||
|
|
max = maxT;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec2<T> >::operator == (const Box<Vec2<T> > &src) const
|
||
|
|
{
|
||
|
|
return (min == src.min && max == src.max);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec2<T> >::operator != (const Box<Vec2<T> > &src) const
|
||
|
|
{
|
||
|
|
return (min != src.min || max != src.max);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void Box<Vec2<T> >::makeEmpty()
|
||
|
|
{
|
||
|
|
min = Vec2<T>(Vec2<T>::baseTypeMax());
|
||
|
|
max = Vec2<T>(Vec2<T>::baseTypeMin());
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void Box<Vec2<T> >::makeInfinite()
|
||
|
|
{
|
||
|
|
min = Vec2<T>(Vec2<T>::baseTypeMin());
|
||
|
|
max = Vec2<T>(Vec2<T>::baseTypeMax());
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void
|
||
|
|
Box<Vec2<T> >::extendBy (const Vec2<T> &point)
|
||
|
|
{
|
||
|
|
if (point[0] < min[0])
|
||
|
|
min[0] = point[0];
|
||
|
|
|
||
|
|
if (point[0] > max[0])
|
||
|
|
max[0] = point[0];
|
||
|
|
|
||
|
|
if (point[1] < min[1])
|
||
|
|
min[1] = point[1];
|
||
|
|
|
||
|
|
if (point[1] > max[1])
|
||
|
|
max[1] = point[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void
|
||
|
|
Box<Vec2<T> >::extendBy (const Box<Vec2<T> > &box)
|
||
|
|
{
|
||
|
|
if (box.min[0] < min[0])
|
||
|
|
min[0] = box.min[0];
|
||
|
|
|
||
|
|
if (box.max[0] > max[0])
|
||
|
|
max[0] = box.max[0];
|
||
|
|
|
||
|
|
if (box.min[1] < min[1])
|
||
|
|
min[1] = box.min[1];
|
||
|
|
|
||
|
|
if (box.max[1] > max[1])
|
||
|
|
max[1] = box.max[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec2<T> >::intersects (const Vec2<T> &point) const
|
||
|
|
{
|
||
|
|
if (point[0] < min[0] || point[0] > max[0] ||
|
||
|
|
point[1] < min[1] || point[1] > max[1])
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec2<T> >::intersects (const Box<Vec2<T> > &box) const
|
||
|
|
{
|
||
|
|
if (box.max[0] < min[0] || box.min[0] > max[0] ||
|
||
|
|
box.max[1] < min[1] || box.min[1] > max[1])
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Vec2<T>
|
||
|
|
Box<Vec2<T> >::size() const
|
||
|
|
{
|
||
|
|
if (isEmpty())
|
||
|
|
return Vec2<T> (0);
|
||
|
|
|
||
|
|
return max - min;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Vec2<T>
|
||
|
|
Box<Vec2<T> >::center() const
|
||
|
|
{
|
||
|
|
return (max + min) / 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec2<T> >::isEmpty() const
|
||
|
|
{
|
||
|
|
if (max[0] < min[0] ||
|
||
|
|
max[1] < min[1])
|
||
|
|
return true;
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec2<T> > ::isInfinite() const
|
||
|
|
{
|
||
|
|
if (min[0] != limits<T>::min() || max[0] != limits<T>::max() ||
|
||
|
|
min[1] != limits<T>::min() || max[1] != limits<T>::max())
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec2<T> >::hasVolume() const
|
||
|
|
{
|
||
|
|
if (max[0] <= min[0] ||
|
||
|
|
max[1] <= min[1])
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline unsigned int
|
||
|
|
Box<Vec2<T> >::majorAxis() const
|
||
|
|
{
|
||
|
|
unsigned int major = 0;
|
||
|
|
Vec2<T> s = size();
|
||
|
|
|
||
|
|
if (s[1] > s[major])
|
||
|
|
major = 1;
|
||
|
|
|
||
|
|
return major;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
class Box<Vec3<T> >
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
//-------------------------
|
||
|
|
// Data Members are public
|
||
|
|
//-------------------------
|
||
|
|
|
||
|
|
Vec3<T> min;
|
||
|
|
Vec3<T> max;
|
||
|
|
|
||
|
|
//-----------------------------------------------------
|
||
|
|
// Constructors - an "empty" box is created by default
|
||
|
|
//-----------------------------------------------------
|
||
|
|
|
||
|
|
Box();
|
||
|
|
Box (const Vec3<T> &point);
|
||
|
|
Box (const Vec3<T> &minT, const Vec3<T> &maxT);
|
||
|
|
|
||
|
|
//--------------------
|
||
|
|
// Operators: ==, !=
|
||
|
|
//--------------------
|
||
|
|
|
||
|
|
bool operator == (const Box<Vec3<T> > &src) const;
|
||
|
|
bool operator != (const Box<Vec3<T> > &src) const;
|
||
|
|
|
||
|
|
//------------------
|
||
|
|
// Box manipulation
|
||
|
|
//------------------
|
||
|
|
|
||
|
|
void makeEmpty();
|
||
|
|
void extendBy (const Vec3<T> &point);
|
||
|
|
void extendBy (const Box<Vec3<T> > &box);
|
||
|
|
void makeInfinite ();
|
||
|
|
|
||
|
|
//---------------------------------------------------
|
||
|
|
// Query functions - these compute results each time
|
||
|
|
//---------------------------------------------------
|
||
|
|
|
||
|
|
Vec3<T> size() const;
|
||
|
|
Vec3<T> center() const;
|
||
|
|
bool intersects (const Vec3<T> &point) const;
|
||
|
|
bool intersects (const Box<Vec3<T> > &box) const;
|
||
|
|
|
||
|
|
unsigned int majorAxis() const;
|
||
|
|
|
||
|
|
//----------------
|
||
|
|
// Classification
|
||
|
|
//----------------
|
||
|
|
|
||
|
|
bool isEmpty() const;
|
||
|
|
bool hasVolume() const;
|
||
|
|
bool isInfinite() const;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
//----------------
|
||
|
|
// Implementation
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<Vec3<T> >::Box()
|
||
|
|
{
|
||
|
|
makeEmpty();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<Vec3<T> >::Box (const Vec3<T> &point)
|
||
|
|
{
|
||
|
|
min = point;
|
||
|
|
max = point;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Box<Vec3<T> >::Box (const Vec3<T> &minT, const Vec3<T> &maxT)
|
||
|
|
{
|
||
|
|
min = minT;
|
||
|
|
max = maxT;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec3<T> >::operator == (const Box<Vec3<T> > &src) const
|
||
|
|
{
|
||
|
|
return (min == src.min && max == src.max);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec3<T> >::operator != (const Box<Vec3<T> > &src) const
|
||
|
|
{
|
||
|
|
return (min != src.min || max != src.max);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void Box<Vec3<T> >::makeEmpty()
|
||
|
|
{
|
||
|
|
min = Vec3<T>(Vec3<T>::baseTypeMax());
|
||
|
|
max = Vec3<T>(Vec3<T>::baseTypeMin());
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void Box<Vec3<T> >::makeInfinite()
|
||
|
|
{
|
||
|
|
min = Vec3<T>(Vec3<T>::baseTypeMin());
|
||
|
|
max = Vec3<T>(Vec3<T>::baseTypeMax());
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void
|
||
|
|
Box<Vec3<T> >::extendBy (const Vec3<T> &point)
|
||
|
|
{
|
||
|
|
if (point[0] < min[0])
|
||
|
|
min[0] = point[0];
|
||
|
|
|
||
|
|
if (point[0] > max[0])
|
||
|
|
max[0] = point[0];
|
||
|
|
|
||
|
|
if (point[1] < min[1])
|
||
|
|
min[1] = point[1];
|
||
|
|
|
||
|
|
if (point[1] > max[1])
|
||
|
|
max[1] = point[1];
|
||
|
|
|
||
|
|
if (point[2] < min[2])
|
||
|
|
min[2] = point[2];
|
||
|
|
|
||
|
|
if (point[2] > max[2])
|
||
|
|
max[2] = point[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline void
|
||
|
|
Box<Vec3<T> >::extendBy (const Box<Vec3<T> > &box)
|
||
|
|
{
|
||
|
|
if (box.min[0] < min[0])
|
||
|
|
min[0] = box.min[0];
|
||
|
|
|
||
|
|
if (box.max[0] > max[0])
|
||
|
|
max[0] = box.max[0];
|
||
|
|
|
||
|
|
if (box.min[1] < min[1])
|
||
|
|
min[1] = box.min[1];
|
||
|
|
|
||
|
|
if (box.max[1] > max[1])
|
||
|
|
max[1] = box.max[1];
|
||
|
|
|
||
|
|
if (box.min[2] < min[2])
|
||
|
|
min[2] = box.min[2];
|
||
|
|
|
||
|
|
if (box.max[2] > max[2])
|
||
|
|
max[2] = box.max[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec3<T> >::intersects (const Vec3<T> &point) const
|
||
|
|
{
|
||
|
|
if (point[0] < min[0] || point[0] > max[0] ||
|
||
|
|
point[1] < min[1] || point[1] > max[1] ||
|
||
|
|
point[2] < min[2] || point[2] > max[2])
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec3<T> >::intersects (const Box<Vec3<T> > &box) const
|
||
|
|
{
|
||
|
|
if (box.max[0] < min[0] || box.min[0] > max[0] ||
|
||
|
|
box.max[1] < min[1] || box.min[1] > max[1] ||
|
||
|
|
box.max[2] < min[2] || box.min[2] > max[2])
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Vec3<T>
|
||
|
|
Box<Vec3<T> >::size() const
|
||
|
|
{
|
||
|
|
if (isEmpty())
|
||
|
|
return Vec3<T> (0);
|
||
|
|
|
||
|
|
return max - min;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline Vec3<T>
|
||
|
|
Box<Vec3<T> >::center() const
|
||
|
|
{
|
||
|
|
return (max + min) / 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec3<T> >::isEmpty() const
|
||
|
|
{
|
||
|
|
if (max[0] < min[0] ||
|
||
|
|
max[1] < min[1] ||
|
||
|
|
max[2] < min[2])
|
||
|
|
return true;
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec3<T> >::isInfinite() const
|
||
|
|
{
|
||
|
|
if (min[0] != limits<T>::min() || max[0] != limits<T>::max() ||
|
||
|
|
min[1] != limits<T>::min() || max[1] != limits<T>::max() ||
|
||
|
|
min[2] != limits<T>::min() || max[2] != limits<T>::max())
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline bool
|
||
|
|
Box<Vec3<T> >::hasVolume() const
|
||
|
|
{
|
||
|
|
if (max[0] <= min[0] ||
|
||
|
|
max[1] <= min[1] ||
|
||
|
|
max[2] <= min[2])
|
||
|
|
return false;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
template <class T>
|
||
|
|
inline unsigned int
|
||
|
|
Box<Vec3<T> >::majorAxis() const
|
||
|
|
{
|
||
|
|
unsigned int major = 0;
|
||
|
|
Vec3<T> s = size();
|
||
|
|
|
||
|
|
if (s[1] > s[major])
|
||
|
|
major = 1;
|
||
|
|
|
||
|
|
if (s[2] > s[major])
|
||
|
|
major = 2;
|
||
|
|
|
||
|
|
return major;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
IMATH_INTERNAL_NAMESPACE_HEADER_EXIT
|
||
|
|
|
||
|
|
#endif // INCLUDED_IMATHBOX_H
|