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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2020 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/.
#include "barycentric_interpolation.h"
#include "parallel_for.h"
template <
typename DerivedD,
typename DerivedF,
typename DerivedB,
typename DerivedI,
typename DerivedX>
IGL_INLINE void igl::barycentric_interpolation(
const Eigen::MatrixBase<DerivedD> & D,
const Eigen::MatrixBase<DerivedF> & F,
const Eigen::MatrixBase<DerivedB> & B,
const Eigen::MatrixBase<DerivedI> & I,
Eigen::PlainObjectBase<DerivedX> & X)
{
assert(B.rows() == I.size());
assert(F.cols() == B.cols());
X.setZero(B.rows(),D.cols());
// should use parallel_for
//for(int i = 0;i<X.rows();i++)
parallel_for(X.rows(),[&X,&B,&D,&F,&I](const int i)
{
for(int j = 0;j<F.cols();j++)
{
X.row(i) += B(i,j) * D.row(F(I(i),j));
}
},1000);
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::barycentric_interpolation<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<double, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&);
#endif