BambuStudio/libigl/igl/matrix_to_list.h

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2024-12-20 06:44:50 +00:00
// 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_MATRIX_TO_LIST_H
#define IGL_MATRIX_TO_LIST_H
#include "igl_inline.h"
#include <vector>
#include <Eigen/Dense>
namespace igl
{
// Convert a matrix to a list (std::vector) of row vectors of the same size
//
// Template:
// Mat Matrix type, must implement:
// .resize(m,n)
// .row(i) = Row
// T type that can be safely cast to type in Mat via '='
// Inputs:
// M an m by n matrix
// Outputs:
// V a m-long list of vectors of size n
//
// See also: list_to_matrix
template <typename DerivedM>
IGL_INLINE void matrix_to_list(
const Eigen::DenseBase<DerivedM> & M,
std::vector<std::vector<typename DerivedM::Scalar > > & V);
// Convert a matrix to a list (std::vector) of elements in column-major
// ordering.
//
// Inputs:
// M an m by n matrix
// Outputs:
// V an m*n list of elements
template <typename DerivedM>
IGL_INLINE void matrix_to_list(
const Eigen::DenseBase<DerivedM> & M,
std::vector<typename DerivedM::Scalar > & V);
// Return wrapper
template <typename DerivedM>
IGL_INLINE std::vector<typename DerivedM::Scalar > matrix_to_list(
const Eigen::DenseBase<DerivedM> & M);
}
#ifndef IGL_STATIC_LIBRARY
# include "matrix_to_list.cpp"
#endif
#endif