58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 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_BOUNDARY_FACETS_H
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#define IGL_BOUNDARY_FACETS_H
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#include "igl_inline.h"
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#include <Eigen/Dense>
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#include <vector>
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namespace igl
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{
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// BOUNDARY_FACETS Determine boundary faces (edges) of tetrahedra (triangles)
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// stored in T (analogous to qptoolbox's `outline` and `boundary_faces`).
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//
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// Input:
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// T tetrahedron (triangle) index list, m by 4 (3), where m is the number of tetrahedra
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// Output:
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// F list of boundary faces, n by 3 (2), where n is the number of boundary faces
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// J list of indices into T, n by 1
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// K list of indices revealing across from which vertex is this facet
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//
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//
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template <
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typename DerivedT,
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typename DerivedF,
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typename DerivedJ,
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typename DerivedK>
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IGL_INLINE void boundary_facets(
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const Eigen::MatrixBase<DerivedT>& T,
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Eigen::PlainObjectBase<DerivedF>& F,
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Eigen::PlainObjectBase<DerivedJ>& J,
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Eigen::PlainObjectBase<DerivedK>& K);
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template <typename DerivedT, typename DerivedF>
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IGL_INLINE void boundary_facets(
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const Eigen::MatrixBase<DerivedT>& T,
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Eigen::PlainObjectBase<DerivedF>& F);
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// Same as above but returns F
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template <typename DerivedT, typename Ret>
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Ret boundary_facets(
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const Eigen::MatrixBase<DerivedT>& T);
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template <typename IntegerT, typename IntegerF>
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IGL_INLINE void boundary_facets(
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const std::vector<std::vector<IntegerT> > & T,
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std::vector<std::vector<IntegerF> > & F);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "boundary_facets.cpp"
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#endif
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#endif
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