dust3d/third_party/libigl/include/igl/quat_to_mat.h

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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_QUAT_TO_MAT_H
#define IGL_QUAT_TO_MAT_H
#include "igl_inline.h"
// Name history:
// quat2mat until 16 Sept 2011
namespace igl
{
// Convert a quaternion to a 4x4 matrix
// A Quaternion, q, is defined here as an arrays of four scalars (x,y,z,w),
// such that q = x*i + y*j + z*k + w
// Input:
// quat pointer to four elements of quaternion (x,y,z,w)
// Output:
// mat pointer to 16 elements of matrix
template <typename Q_type>
IGL_INLINE void quat_to_mat(const Q_type * quat, Q_type * mat);
}
#ifndef IGL_STATIC_LIBRARY
# include "quat_to_mat.cpp"
#endif
#endif