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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_CROSS_H
#define IGL_CROSS_H
#include "igl_inline.h"
#include <Eigen/Core>
namespace igl
{
/// Cross product; out = cross(a,b)
///
/// @param[in] a left 3d vector
/// @param[in] b right 3d vector
/// @param[out] out result 3d vector
IGL_INLINE void cross( const double *a, const double *b, double *out);
/// Computes rowwise cross product C = cross(A,B,2);
///
/// @param[in] A #A by 3 list of row-vectors
/// @param[in] B #A by 3 list of row-vectors
/// @param[out] C #A by 3 list of row-vectors
template <
typename DerivedA,
typename DerivedB,
typename DerivedC>
IGL_INLINE void cross(
const Eigen::PlainObjectBase<DerivedA> & A,
const Eigen::PlainObjectBase<DerivedB> & B,
Eigen::PlainObjectBase<DerivedC> & C);
}
#ifndef IGL_STATIC_LIBRARY
# include "cross.cpp"
#endif
#endif