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repmat.h
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repmat.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_REPMAT_H
#define IGL_REPMAT_H
#include "igl_inline.h"
#define EIGEN_YES_I_KNOW_SPARSE_MODULE_IS_NOT_STABLE_YET
#include <Eigen/Dense>
#include <Eigen/Sparse>
namespace igl
{
/// Replicate and tile a matrix
///
/// @tparam T should be a eigen matrix primitive type like int or double
/// @param[in] A m by n input matrix
/// @param[in] r number of row-direction copies
/// @param[in] c number of col-direction copies
/// @param[out] B r*m by c*n output matrix
///
/// \note At least for Dense matrices this is replaced by `replicate` e.g., dst = src.replicate(n,m);
/// http://forum.kde.org/viewtopic.php?f=74&t=90876#p173517
///
template <typename DerivedA,typename DerivedB>
IGL_INLINE void repmat(
const Eigen::MatrixBase<DerivedA> & A,
const int r,
const int c,
Eigen::PlainObjectBase<DerivedB> & B);
/// \overload
template <typename T, int majorType>
IGL_INLINE void repmat(
const Eigen::SparseMatrix<T, majorType> & A,
const int r,
const int c,
Eigen::SparseMatrix<T, majorType> & B);
}
#ifndef IGL_STATIC_LIBRARY
# include "repmat.cpp"
#endif
#endif