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44 lines
1.4 KiB
44 lines
1.4 KiB
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2016 Alec Jacobson <alecjacobson@gmail.com>
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// Qingan Zhou <qnzhou@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_LEXICOGRAPHIC_TRIANGULATION_H
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#define IGL_LEXICOGRAPHIC_TRIANGULATION_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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/// Given a set of points in 2D, return a lexicographic triangulation of these
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/// points.
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///
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/// @param[in] P #P by 2 list of vertex positions
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/// @param[in] orient2D A functor such that orient2D(pa, pb, pc) returns
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/// 1 if pa,pb,pc forms a conterclockwise triangle.
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/// -1 if pa,pb,pc forms a clockwise triangle.
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/// 0 if pa,pb,pc are collinear.
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/// where the argument pa,pb,pc are of type Scalar[2].
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/// @param[out] F #F by 3 of faces in lexicographic triangulation.
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template<
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typename DerivedP,
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typename Orient2D,
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typename DerivedF
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>
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IGL_INLINE void lexicographic_triangulation(
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const Eigen::MatrixBase<DerivedP>& P,
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Orient2D orient2D,
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Eigen::PlainObjectBase<DerivedF>& F);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "lexicographic_triangulation.cpp"
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#endif
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#endif
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