CS计算机代考程序代写 ///////////////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 – 2015 G-Truc Creation (www.g-truc.net)
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the “Software”), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
///
/// Restrictions:
/// By making use of the Software for military purposes, you choose to make
/// a Bunny unhappy.
///
/// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
/// THE SOFTWARE.
///
/// @ref gtx_norm
/// @file glm/gtx/norm.inl
/// @date 2005-12-21 / 2008-07-24
/// @author Christophe Riccio
///////////////////////////////////////////////////////////////////////////////////

namespace glm
{
template
GLM_FUNC_QUALIFIER T length2
(
T const & x
)
{
return x * x;
}

template
GLM_FUNC_QUALIFIER T length2
(
tvec2 const & x
)
{
return dot(x, x);
}

template
GLM_FUNC_QUALIFIER T length2
(
tvec3 const & x
)
{
return dot(x, x);
}

template
GLM_FUNC_QUALIFIER T length2
(
tvec4 const & x
)
{
return dot(x, x);
}

template
GLM_FUNC_QUALIFIER T distance2
(
T const & p0,
T const & p1
)
{
return length2(p1 – p0);
}

template
GLM_FUNC_QUALIFIER T distance2
(
tvec2 const & p0,
tvec2 const & p1
)
{
return length2(p1 – p0);
}

template
GLM_FUNC_QUALIFIER T distance2
(
tvec3 const & p0,
tvec3 const & p1
)
{
return length2(p1 – p0);
}

template
GLM_FUNC_QUALIFIER T distance2
(
tvec4 const & p0,
tvec4 const & p1
)
{
return length2(p1 – p0);
}

template
GLM_FUNC_QUALIFIER T l1Norm
(
tvec3 const & a,
tvec3 const & b
)
{
return abs(b.x – a.x) + abs(b.y – a.y) + abs(b.z – a.z);
}

template
GLM_FUNC_QUALIFIER T l1Norm
(
tvec3 const & v
)
{
return abs(v.x) + abs(v.y) + abs(v.z);
}

template
GLM_FUNC_QUALIFIER T l2Norm
(
tvec3 const & a,
tvec3 const & b
)
{
return length(b – a);
}

template
GLM_FUNC_QUALIFIER T l2Norm
(
tvec3 const & v
)
{
return length(v);
}

template
GLM_FUNC_QUALIFIER T lxNorm
(
tvec3 const & x,
tvec3 const & y,
unsigned int Depth
)
{
return pow(pow(y.x – x.x, T(Depth)) + pow(y.y – x.y, T(Depth)) + pow(y.z – x.z, T(Depth)), T(1) / T(Depth));
}

template
GLM_FUNC_QUALIFIER T lxNorm
(
tvec3 const & v,
unsigned int Depth
)
{
return pow(pow(v.x, T(Depth)) + pow(v.y, T(Depth)) + pow(v.z, T(Depth)), T(1) / T(Depth));
}

}//namespace glm