3D-printing/OrcaSlicer
1
0
Fork 0
mirror of https://github.com/SoftFever/OrcaSlicer.git synced 2025-11-01 21:21:10 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 5

Merged branch 'dev_native' into lm_sla_supports_auto

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

111
src/igl/per_corner_normals.cpp Normal file
View file

@ -0,0 +1,111 @@
// 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 "per_corner_normals.h"
#include "vertex_triangle_adjacency.h"
#include "per_face_normals.h"
#include "PI.h"
template <typename DerivedV, typename DerivedF, typename DerivedCN>
IGL_INLINE void igl::per_corner_normals(
const Eigen::PlainObjectBase<DerivedV>& V,
const Eigen::PlainObjectBase<DerivedF>& F,
const double corner_threshold,
Eigen::PlainObjectBase<DerivedCN> & CN)
{
using namespace Eigen;
using namespace std;
Eigen::Matrix<typename DerivedV::Scalar,Eigen::Dynamic,3> FN;
per_face_normals(V,F,FN);
vector<vector<int> > VF,VFi;
vertex_triangle_adjacency(V,F,VF,VFi);
return per_corner_normals(V,F,FN,VF,corner_threshold,CN);
}
template <
typename DerivedV,
typename DerivedF,
typename DerivedFN,
typename DerivedCN>
IGL_INLINE void igl::per_corner_normals(
const Eigen::PlainObjectBase<DerivedV>& V,
const Eigen::PlainObjectBase<DerivedF>& F,
const Eigen::PlainObjectBase<DerivedFN>& FN,
const double corner_threshold,
Eigen::PlainObjectBase<DerivedCN> & CN)
{
using namespace Eigen;
using namespace std;
vector<vector<int> > VF,VFi;
vertex_triangle_adjacency(V,F,VF,VFi);
return per_corner_normals(V,F,FN,VF,corner_threshold,CN);
}
template <
typename DerivedV,
typename DerivedF,
typename DerivedFN,
typename IndexType,
typename DerivedCN>
IGL_INLINE void igl::per_corner_normals(
const Eigen::PlainObjectBase<DerivedV>& /*V*/,
const Eigen::PlainObjectBase<DerivedF>& F,
const Eigen::PlainObjectBase<DerivedFN>& FN,
const std::vector<std::vector<IndexType> >& VF,
const double corner_threshold,
Eigen::PlainObjectBase<DerivedCN> & CN)
{
using namespace Eigen;
using namespace std;
// number of faces
const int m = F.rows();
// valence of faces
const int n = F.cols();
// initialize output to ***zero***
CN.setZero(m*n,3);
// loop over faces
for(size_t i = 0;int(i)<m;i++)
{
// Normal of this face
Eigen::Matrix<typename DerivedV::Scalar,3,1> fn = FN.row(i);
// loop over corners
for(size_t j = 0;int(j)<n;j++)
{
const std::vector<IndexType> &incident_faces = VF[F(i,j)];
// loop over faces sharing vertex of this corner
for(int k = 0;k<(int)incident_faces.size();k++)
{
Eigen::Matrix<typename DerivedV::Scalar,3,1> ifn = FN.row(incident_faces[k]);
// dot product between face's normal and other face's normal
double dp = fn.dot(ifn);
// if difference in normal is slight then add to average
if(dp > cos(corner_threshold*PI/180))
{
// add to running sum
CN.row(i*n+j) += ifn;
// else ignore
}else
{
}
}
// normalize to take average
CN.row(i*n+j).normalize();
}
}
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::per_corner_normals<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&, double, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&);
template void igl::per_corner_normals<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -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> > const&, double, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&);
template void igl::per_corner_normals<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&, double, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&);
template void igl::per_corner_normals<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 3, 0, -1, 3>, Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<double, -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> > const&, double, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&);
#endif