mirror of
https://github.com/SoftFever/OrcaSlicer.git
synced 2025-10-25 09:41:11 -06:00
2ae2672ee9
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.
46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2016 Michael Rabinovich <michaelrabinovich27@gmail.com@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 "euler_characteristic.h"
|
|
|
|
#include "edge_topology.h"
|
|
#include "edges.h"
|
|
|
|
template <typename Scalar, typename Index>
|
|
IGL_INLINE int igl::euler_characteristic(
|
|
const Eigen::PlainObjectBase<Scalar> & V,
|
|
const Eigen::PlainObjectBase<Index> & F)
|
|
{
|
|
|
|
int euler_v = V.rows();
|
|
Eigen::MatrixXi EV, FE, EF;
|
|
igl::edge_topology(V, F, EV, FE, EF);
|
|
int euler_e = EV.rows();
|
|
int euler_f = F.rows();
|
|
|
|
int euler_char = euler_v - euler_e + euler_f;
|
|
return euler_char;
|
|
|
|
}
|
|
|
|
template <typename DerivedF>
|
|
IGL_INLINE int igl::euler_characteristic(
|
|
const Eigen::MatrixBase<DerivedF> & F)
|
|
{
|
|
const int nf = F.rows();
|
|
const int nv = F.maxCoeff()+1;
|
|
Eigen::Matrix<typename DerivedF::Scalar,Eigen::Dynamic,2> E;
|
|
edges(F,E);
|
|
const int ne = E.rows();
|
|
return nv - ne + nf;
|
|
}
|
|
|
|
#ifdef IGL_STATIC_LIBRARY
|
|
// Explicit template instantiation
|
|
template int igl::euler_characteristic<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
|
|
template int igl::euler_characteristic<Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
|
|
#endif
|