65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2014 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include "cdt.h"
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#include "../../bounding_box.h"
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#include "tetrahedralize.h"
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedTV,
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typename DerivedTT,
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typename DerivedTF>
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IGL_INLINE bool igl::copyleft::tetgen::cdt(
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const Eigen::PlainObjectBase<DerivedV>& V,
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const Eigen::PlainObjectBase<DerivedF>& F,
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const CDTParam & param,
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Eigen::PlainObjectBase<DerivedTV>& TV,
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Eigen::PlainObjectBase<DerivedTT>& TT,
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Eigen::PlainObjectBase<DerivedTF>& TF)
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{
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using namespace Eigen;
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using namespace std;
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// Effective input mesh
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DerivedV U;
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DerivedF G;
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if(param.use_bounding_box)
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{
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// Construct bounding box mesh
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DerivedV BV;
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DerivedF BF;
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bounding_box(V,BV,BF);
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// scale bounding box
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const RowVector3d mid =
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(BV.colwise().minCoeff() + BV.colwise().maxCoeff()).eval()*0.5;
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BV.rowwise() -= mid;
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assert(param.bounding_box_scale >= 1.);
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BV.array() *= param.bounding_box_scale;
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BV.rowwise() += mid;
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// Append bounding box to mesh
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U.resize(V.rows()+BV.rows(),V.cols());
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U<<V,BV;
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BF.array() += V.rows();
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G.resize(F.rows()+BF.rows(),F.cols());
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G<<F,BF;
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}else
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{
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// needless copies
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U = V;
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G = F;
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}
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// effective flags;
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string flags = param.flags + (param.use_bounding_box ? "" : "c");
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return tetrahedralize(U,G,flags,TV,TT,TF);
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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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> >&);
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#endif
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