OrcaSlicer/src/libigl/igl/slice_into.h
tamasmeszaros 2ae2672ee9 Building igl statically and moving to the dep scripts
Fixing dep build script on Windows and removing some warnings.

Use bundled igl by default.

Not building with the dependency scripts if not explicitly stated. This way, it will stay in
Fix the libigl patch to include C source files in header only mode.
2019-06-19 14:52:55 +02:00

63 lines
1.9 KiB
C++

// 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