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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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103
src/igl/flood_fill.cpp Normal file
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2016 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 "flood_fill.h"
#include <limits>
template <typename Derivedres, typename DerivedS>
IGL_INLINE void igl::flood_fill(
const Eigen::MatrixBase<Derivedres>& res,
Eigen::PlainObjectBase<DerivedS> & S)
{
using namespace Eigen;
using namespace std;
typedef typename DerivedS::Scalar Scalar;
const auto flood = [&res,&S] (
const int xi,
const int yi,
const int zi,
const int signed_xi,
const int signed_yi,
const int signed_zi,
const Scalar s)
{
// flood fill this value back on this row
for(int bxi = xi;signed_xi<--bxi;)
{
S(bxi+res(0)*(yi + res(1)*zi)) = s;
}
// flood fill this value back on any previous rows
for(int byi = yi;signed_yi<--byi;)
{
for(int xi = 0;xi<res(0);xi++)
{
S(xi+res(0)*(byi + res(1)*zi)) = s;
}
}
// flood fill this value back on any previous "sheets"
for(int bzi = zi;signed_zi<--bzi;)
{
for(int yi = 0;yi<res(1);yi++)
{
for(int xi = 0;xi<res(0);xi++)
{
S(xi+res(0)*(yi + res(1)*bzi)) = s;
}
}
}
};
int signed_zi = -1;
Scalar s = numeric_limits<Scalar>::quiet_NaN();
for(int zi = 0;zi<res(2);zi++)
{
int signed_yi = -1;
if(zi != 0)
{
s = S(0+res(0)*(0 + res(1)*(zi-1)));
}
for(int yi = 0;yi<res(1);yi++)
{
// index of last signed item on this row
int signed_xi = -1;
if(yi != 0)
{
s = S(0+res(0)*(yi-1 + res(1)*zi));
}
for(int xi = 0;xi<res(0);xi++)
{
int i = xi+res(0)*(yi + res(1)*zi);
if(S(i)!=S(i))
{
if(s == s)
{
S(i) = s;
}
continue;
}
s = S(i);
flood(xi,yi,zi,signed_xi,signed_yi,signed_zi,s);
// remember this position
signed_xi = xi;
signed_yi = yi;
signed_zi = zi;
}
}
}
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::flood_fill<Eigen::Matrix<int, 1, 3, 1, 1, 3>, Eigen::Matrix<float, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<int, 1, 3, 1, 1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<float, -1, 1, 0, -1, 1> >&);
// generated by autoexplicit.sh
template void igl::flood_fill<Eigen::Matrix<int, 3, 1, 0, 3, 1>, Eigen::Matrix<float, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<int, 3, 1, 0, 3, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<float, -1, 1, 0, -1, 1> >&);
// generated by autoexplicit.sh
template void igl::flood_fill<Eigen::Matrix<int, 3, 1, 0, 3, 1>, Eigen::Matrix<double, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<int, 3, 1, 0, 3, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 1, 0, -1, 1> >&);
// generated by autoexplicit.sh
template void igl::flood_fill<Eigen::Matrix<int, 1, 3, 1, 1, 3>, Eigen::Matrix<double, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<int, 1, 3, 1, 1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 1, 0, -1, 1> >&);
template void igl::flood_fill<Eigen::Matrix<float, 1, 3, 1, 1, 3>, Eigen::Matrix<float, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<float, 1, 3, 1, 1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<float, -1, 1, 0, -1, 1> >&);
#endif