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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/opengl2/sort_triangles.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 "sort_triangles.h"
#include "project.h"
#include "../sort_triangles.h"
#include "gl.h"
#include "../sort.h"
#include "../slice.h"
#include "../barycenter.h"
#include <iostream>
template <
typename DerivedV,
typename DerivedF,
typename DerivedFF,
typename DerivedI>
void igl::opengl2::sort_triangles(
const Eigen::PlainObjectBase<DerivedV> & V,
const Eigen::PlainObjectBase<DerivedF> & F,
Eigen::PlainObjectBase<DerivedFF> & FF,
Eigen::PlainObjectBase<DerivedI> & I)
{
using namespace Eigen;
using namespace std;
// Put model, projection, and viewport matrices into double arrays
Matrix4d MV;
Matrix4d P;
glGetDoublev(GL_MODELVIEW_MATRIX, MV.data());
glGetDoublev(GL_PROJECTION_MATRIX, P.data());
if(V.cols() == 3)
{
Matrix<typename DerivedV::Scalar, DerivedV::RowsAtCompileTime,4> hV;
hV.resize(V.rows(),4);
hV.block(0,0,V.rows(),V.cols()) = V;
hV.col(3).setConstant(1);
return igl::sort_triangles(hV,F,MV,P,FF,I);
}else
{
return igl::sort_triangles(V,F,MV,P,FF,I);
}
}
template <
typename DerivedV,
typename DerivedF,
typename DerivedFF,
typename DerivedI>
void igl::opengl2::sort_triangles_slow(
const Eigen::PlainObjectBase<DerivedV> & V,
const Eigen::PlainObjectBase<DerivedF> & F,
Eigen::PlainObjectBase<DerivedFF> & FF,
Eigen::PlainObjectBase<DerivedI> & I)
{
using namespace Eigen;
using namespace std;
// Barycenter, centroid
Eigen::Matrix<typename DerivedV::Scalar, DerivedF::RowsAtCompileTime,1> D,sD;
Eigen::Matrix<typename DerivedV::Scalar, DerivedF::RowsAtCompileTime,3> BC;
D.resize(F.rows(),3);
barycenter(V,F,BC);
for(int f = 0;f<F.rows();f++)
{
Eigen::Matrix<typename DerivedV::Scalar, 3,1> bc,pbc;
bc = BC.row(f);
project(bc,pbc);
D(f) = pbc(2);
}
sort(D,1,false,sD,I);
slice(F,I,1,FF);
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
template void igl::opengl2::sort_triangles<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -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<int, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
template void igl::opengl2::sort_triangles_slow<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -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<int, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
#endif