mirror of
https://git.mirrors.martin98.com/https://github.com/prusa3d/PrusaSlicer.git
synced 2025-08-17 21:25:59 +08:00
21116995d7
* 1. Remove all global include_directories.
* 2. Move 3d party dependencies from src to budled deps if possible.
* Unify and enforce one way of including headers:
e.g. #include "libslic3r/GCode.hpp" vs #include "GCode.hpp"
(always use the "libslic3r/GCode.hpp" option).
* Make all dependencies (also header only) a cmake target.
47 lines
1.4 KiB
C++
47 lines
1.4 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/.
|
|
#include "invert_diag.h"
|
|
|
|
template <typename T>
|
|
IGL_INLINE void igl::invert_diag(
|
|
const Eigen::SparseMatrix<T>& X,
|
|
Eigen::SparseMatrix<T>& Y)
|
|
{
|
|
#ifndef NDEBUG
|
|
typename Eigen::SparseVector<T> dX = X.diagonal().sparseView();
|
|
// Check that there are no zeros along the diagonal
|
|
assert(dX.nonZeros() == dX.size());
|
|
#endif
|
|
// http://www.alecjacobson.com/weblog/?p=2552
|
|
if(&Y != &X)
|
|
{
|
|
Y = X;
|
|
}
|
|
// Iterate over outside
|
|
for(int k=0; k<Y.outerSize(); ++k)
|
|
{
|
|
// Iterate over inside
|
|
for(typename Eigen::SparseMatrix<T>::InnerIterator it (Y,k); it; ++it)
|
|
{
|
|
if(it.col() == it.row())
|
|
{
|
|
T v = it.value();
|
|
assert(v != 0);
|
|
v = ((T)1.0)/v;
|
|
Y.coeffRef(it.row(),it.col()) = v;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef IGL_STATIC_LIBRARY
|
|
// Explicit template instantiation
|
|
template void igl::invert_diag<double>(Eigen::SparseMatrix<double, 0, int> const&, Eigen::SparseMatrix<double, 0, int>&);
|
|
template void igl::invert_diag<float>(Eigen::SparseMatrix<float, 0, int> const&, Eigen::SparseMatrix<float, 0, int>&);
|
|
#endif
|