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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/false_barycentric_subdivision.cpp 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/.
#include "false_barycentric_subdivision.h"
#include "verbose.h"
#include <algorithm>
#include <igl/barycenter.h>
template <typename Scalar, typename Index>
IGL_INLINE void igl::false_barycentric_subdivision(
const Eigen::PlainObjectBase<Scalar> & V,
const Eigen::PlainObjectBase<Index> & F,
Eigen::PlainObjectBase<Scalar> & VD,
Eigen::PlainObjectBase<Index> & FD)
{
using namespace Eigen;
// Compute face barycenter
Eigen::MatrixXd BC;
igl::barycenter(V,F,BC);
// Add the barycenters to the vertices
VD.resize(V.rows()+F.rows(),3);
VD.block(0,0,V.rows(),3) = V;
VD.block(V.rows(),0,F.rows(),3) = BC;
// Each face is split four ways
FD.resize(F.rows()*3,3);
for (unsigned i=0; i<F.rows(); ++i)
{
int i0 = F(i,0);
int i1 = F(i,1);
int i2 = F(i,2);
int i3 = V.rows() + i;
Vector3i F0,F1,F2;
F0 << i0,i1,i3;
F1 << i1,i2,i3;
F2 << i2,i0,i3;
FD.row(i*3 + 0) = F0;
FD.row(i*3 + 1) = F1;
FD.row(i*3 + 2) = F2;
}
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
template void igl::false_barycentric_subdivision<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 3, 0, -1, 3> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> >&);
template void igl::false_barycentric_subdivision<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&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
#endif