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Merged branch 'dev_native' into lm_sla_supports_auto

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Added igl library files
This commit is contained in:
Lukas Matena 2018-10-26 15:45:52 +02:00
commit 7681d00ee5
2865 changed files with 142806 additions and 22325 deletions
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src/igl/slice_into.h Normal file
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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_SLICE_INTO_H
#define IGL_SLICE_INTO_H
#include "igl_inline.h"
#define EIGEN_YES_I_KNOW_SPARSE_MODULE_IS_NOT_STABLE_YET
#include <Eigen/Dense>
#include <Eigen/Sparse>
namespace igl
{
// Act like the matlab Y(row_indices,col_indices) = X
//
// Inputs:
// X xm by xn rhs matrix
// R list of row indices
// C list of column indices
// Y ym by yn lhs matrix
// Output:
// Y ym by yn lhs matrix, same as input but Y(R,C) = X
template <typename T>
IGL_INLINE void slice_into(
const Eigen::SparseMatrix<T>& X,
const Eigen::Matrix<int,Eigen::Dynamic,1> & R,
const Eigen::Matrix<int,Eigen::Dynamic,1> & C,
Eigen::SparseMatrix<T>& Y);
template <typename DerivedX, typename DerivedY>
IGL_INLINE void slice_into(
const Eigen::DenseBase<DerivedX> & X,
const Eigen::Matrix<int,Eigen::Dynamic,1> & R,
const Eigen::Matrix<int,Eigen::Dynamic,1> & C,
Eigen::PlainObjectBase<DerivedY> & Y);
// Wrapper to only slice in one direction
//
// Inputs:
// dim dimension to slice in 1 or 2, dim=1 --> X(R,:), dim=2 --> X(:,R)
//
// Note: For now this is just a cheap wrapper.
template <typename MatX, typename MatY>
IGL_INLINE void slice_into(
const MatX & X,
const Eigen::Matrix<int,Eigen::Dynamic,1> & R,
const int dim,
MatY& Y);
template <typename DerivedX, typename DerivedY>
IGL_INLINE void slice_into(
const Eigen::DenseBase<DerivedX> & X,
const Eigen::Matrix<int,Eigen::Dynamic,1> & R,
Eigen::PlainObjectBase<DerivedY> & Y);
}
#ifndef IGL_STATIC_LIBRARY
# include "slice_into.cpp"
#endif
#endif