3D-printing/OrcaSlicer
1
0
Fork 0
mirror of https://github.com/SoftFever/OrcaSlicer.git synced 2025-10-27 02:31:10 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 6

Building igl statically and moving to the dep scripts

Browse source 
Fixing dep build script on Windows and removing some warnings.

Use bundled igl by default.

Not building with the dependency scripts if not explicitly stated. This way, it will stay in
Fix the libigl patch to include C source files in header only mode.
This commit is contained in:
tamasmeszaros 2019-06-19 14:52:55 +02:00
parent 89e39e3895
commit 2ae2672ee9
1095 changed files with 181 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

100
src/libigl/igl/crouzeix_raviart_cotmatrix.cpp Normal file
View file

@ -0,0 +1,100 @@
// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2017 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 "crouzeix_raviart_cotmatrix.h"
#include "unique_simplices.h"
#include "oriented_facets.h"
#include "is_edge_manifold.h"
#include "cotmatrix_entries.h"
template <typename DerivedV, typename DerivedF, typename LT, typename DerivedE, typename DerivedEMAP>
void igl::crouzeix_raviart_cotmatrix(
const Eigen::MatrixBase<DerivedV> & V,
const Eigen::MatrixBase<DerivedF> & F,
Eigen::SparseMatrix<LT> & L,
Eigen::PlainObjectBase<DerivedE> & E,
Eigen::PlainObjectBase<DerivedEMAP> & EMAP)
{
// All occurrences of directed "facets"
Eigen::MatrixXi allE;
oriented_facets(F,allE);
Eigen::VectorXi _1;
unique_simplices(allE,E,_1,EMAP);
return crouzeix_raviart_cotmatrix(V,F,E,EMAP,L);
}
template <typename DerivedV, typename DerivedF, typename DerivedE, typename DerivedEMAP, typename LT>
void igl::crouzeix_raviart_cotmatrix(
const Eigen::MatrixBase<DerivedV> & V,
const Eigen::MatrixBase<DerivedF> & F,
const Eigen::MatrixBase<DerivedE> & E,
const Eigen::MatrixBase<DerivedEMAP> & EMAP,
Eigen::SparseMatrix<LT> & L)
{
// number of rows
const int m = F.rows();
// Element simplex size
const int ss = F.cols();
// Mesh should be edge-manifold
assert(F.cols() != 3 || is_edge_manifold(F));
typedef Eigen::Matrix<LT,Eigen::Dynamic,Eigen::Dynamic> MatrixXS;
MatrixXS C;
cotmatrix_entries(V,F,C);
Eigen::MatrixXi F2E(m,ss);
{
int k =0;
for(int c = 0;c<ss;c++)
{
for(int f = 0;f<m;f++)
{
F2E(f,c) = k++;
}
}
}
// number of entries inserted per facet
const int k = ss*(ss-1)*2;
std::vector<Eigen::Triplet<LT> > LIJV;LIJV.reserve(k*m);
Eigen::VectorXi LI(k),LJ(k),LV(k);
// Compensation factor to match scales in matlab version
double factor = 2.0;
switch(ss)
{
default: assert(false && "unsupported simplex size");
case 3:
factor = 4.0;
LI<<0,1,2,1,2,0,0,1,2,1,2,0;
LJ<<1,2,0,0,1,2,0,1,2,1,2,0;
LV<<2,0,1,2,0,1,2,0,1,2,0,1;
break;
case 4:
factor *= -1.0;
LI<<0,3,3,3,1,2,1,0,1,2,2,0,0,3,3,3,1,2,1,0,1,2,2,0;
LJ<<1,0,1,2,2,0,0,3,3,3,1,2,0,3,3,3,1,2,1,0,1,2,2,0;
LV<<2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1,2,3,4,5,0,1;
break;
}
for(int f=0;f<m;f++)
{
for(int c = 0;c<k;c++)
{
LIJV.emplace_back(
EMAP(F2E(f,LI(c))),
EMAP(F2E(f,LJ(c))),
(c<(k/2)?-1.:1.) * factor *C(f,LV(c)));
}
}
L.resize(E.rows(),E.rows());
L.setFromTriplets(LIJV.begin(),LIJV.end());
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::crouzeix_raviart_cotmatrix<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>, double>(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::SparseMatrix<double, 0, int>&);
#endif