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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/local_basis.cpp Normal file
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2014 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 "local_basis.h"
#include <sstream>
#include <string>
#include <fstream>
#include <vector>
#include <Eigen/Geometry>
template <typename DerivedV, typename DerivedF>
IGL_INLINE void igl::local_basis(
const Eigen::PlainObjectBase<DerivedV>& V,
const Eigen::PlainObjectBase<DerivedF>& F,
Eigen::PlainObjectBase<DerivedV>& B1,
Eigen::PlainObjectBase<DerivedV>& B2,
Eigen::PlainObjectBase<DerivedV>& B3
)
{
using namespace Eigen;
using namespace std;
B1.resize(F.rows(),3);
B2.resize(F.rows(),3);
B3.resize(F.rows(),3);
for (unsigned i=0;i<F.rows();++i)
{
Eigen::Matrix<typename DerivedV::Scalar, 1, 3> v1 = (V.row(F(i,1)) - V.row(F(i,0))).normalized();
Eigen::Matrix<typename DerivedV::Scalar, 1, 3> t = V.row(F(i,2)) - V.row(F(i,0));
Eigen::Matrix<typename DerivedV::Scalar, 1, 3> v3 = v1.cross(t).normalized();
Eigen::Matrix<typename DerivedV::Scalar, 1, 3> v2 = v1.cross(v3).normalized();
B1.row(i) = v1;
B2.row(i) = -v2;
B3.row(i) = v3;
}
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::local_basis<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<double, -1, 3, 0, -1, 3> >&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&);
template void igl::local_basis<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<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&);
#endif