File size: 2,394 Bytes
5b89cb9 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | // This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2014 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 "cdt.h"
#include "../../bounding_box.h"
#include "tetrahedralize.h"
template <
typename DerivedV,
typename DerivedF,
typename DerivedTV,
typename DerivedTT,
typename DerivedTF>
IGL_INLINE bool igl::copyleft::tetgen::cdt(
const Eigen::PlainObjectBase<DerivedV>& V,
const Eigen::PlainObjectBase<DerivedF>& F,
const CDTParam & param,
Eigen::PlainObjectBase<DerivedTV>& TV,
Eigen::PlainObjectBase<DerivedTT>& TT,
Eigen::PlainObjectBase<DerivedTF>& TF)
{
using namespace Eigen;
using namespace std;
// Effective input mesh
DerivedV U;
DerivedF G;
if(param.use_bounding_box)
{
// Construct bounding box mesh
DerivedV BV;
DerivedF BF;
bounding_box(V,BV,BF);
// scale bounding box
const RowVector3d mid =
(BV.colwise().minCoeff() + BV.colwise().maxCoeff()).eval()*0.5;
BV.rowwise() -= mid;
assert(param.bounding_box_scale >= 1.);
BV.array() *= param.bounding_box_scale;
BV.rowwise() += mid;
// Append bounding box to mesh
U.resize(V.rows()+BV.rows(),V.cols());
U<<V,BV;
BF.array() += V.rows();
G.resize(F.rows()+BF.rows(),F.cols());
G<<F,BF;
}else
{
// needless copies
U = V;
G = F;
}
// effective flags;
string flags = param.flags + (param.use_bounding_box ? "" : "c");
return tetrahedralize(U,G,flags,TV,TT,TF);
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
template bool igl::copyleft::tetgen::cdt<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<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&, igl::copyleft::tetgen::CDTParam const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
#endif
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