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73 lines
2.2 KiB
73 lines
2.2 KiB
1 year ago
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// 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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#ifndef IGL_COPYLEFT_TETGEN_CDT_H
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#define IGL_COPYLEFT_TETGEN_CDT_H
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#include "../../igl_inline.h"
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#include <Eigen/Core>
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#include <string>
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#ifndef TETLIBRARY
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# define TETLIBRARY
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#endif
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#include <tetgen.h> // Defined REAL
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namespace igl
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{
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namespace copyleft
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{
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namespace tetgen
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{
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/// Parameters for controling the CDT
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struct CDTParam
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{
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/// Tetgen can compute mesh of convex hull of input (i.e. "c") but often
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/// chokes. One workaround is to force it to mesh the entire bounding box.
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/// {false}
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bool use_bounding_box = false;
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/// Scale the bounding box a bit so that vertices near it do not give tetgen
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/// problems. {1.01}
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double bounding_box_scale = 1.01;
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/// Flags to tetgen. Do not include the "c" flag here! {"Y"}
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std::string flags = "Y";
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};
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/// Create a constrained delaunay tessellation containing convex hull of the
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/// given **non-selfintersecting** mesh.
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///
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/// @param[in] V #V by 3 list of input mesh vertices
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/// @param[in] F #F by 3 list of input mesh facets
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/// @param[in] param see above
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/// @param[out] TV #TV by 3 list of output mesh vertices (V come first)
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/// @param[out] TT #TT by 3 list of tetrahedra indices into TV.
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/// @param[out] TF #TF by 3 list of facets from F potentially subdivided.
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///
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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 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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}
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "cdt.cpp"
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#endif
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#endif
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