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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/edge_flaps.cpp Normal file
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2015 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 "edge_flaps.h"
#include "unique_edge_map.h"
#include <vector>
#include <cassert>
IGL_INLINE void igl::edge_flaps(
const Eigen::MatrixXi & F,
const Eigen::MatrixXi & E,
const Eigen::VectorXi & EMAP,
Eigen::MatrixXi & EF,
Eigen::MatrixXi & EI)
{
// Initialize to boundary value
EF.setConstant(E.rows(),2,-1);
EI.setConstant(E.rows(),2,-1);
// loop over all faces
for(int f = 0;f<F.rows();f++)
{
// loop over edges across from corners
for(int v = 0;v<3;v++)
{
// get edge id
const int e = EMAP(v*F.rows()+f);
// See if this is left or right flap w.r.t. edge orientation
if( F(f,(v+1)%3) == E(e,0) && F(f,(v+2)%3) == E(e,1))
{
EF(e,0) = f;
EI(e,0) = v;
}else
{
assert(F(f,(v+1)%3) == E(e,1) && F(f,(v+2)%3) == E(e,0));
EF(e,1) = f;
EI(e,1) = v;
}
}
}
}
IGL_INLINE void igl::edge_flaps(
const Eigen::MatrixXi & F,
Eigen::MatrixXi & E,
Eigen::VectorXi & EMAP,
Eigen::MatrixXi & EF,
Eigen::MatrixXi & EI)
{
Eigen::MatrixXi allE;
std::vector<std::vector<int> > uE2E;
igl::unique_edge_map(F,allE,E,EMAP,uE2E);
// Const-ify to call overload
const auto & cE = E;
const auto & cEMAP = EMAP;
return edge_flaps(F,cE,cEMAP,EF,EI);
}