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45 lines
1.6 KiB
45 lines
1.6 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) 2016 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_NON_MANIFOLD_EDGE_CURVES
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#define IGL_NON_MANIFOLD_EDGE_CURVES
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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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/// Extract non-manifold curves from a given mesh.
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/// A non-manifold curves are a set of connected non-manifold edges that
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/// does not touch other non-manifold edges except at the end points.
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/// They are also maximal in the sense that they cannot be expanded by
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/// including more edges.
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///
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/// Assumes the input mesh have all self-intersection resolved. See
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/// igl::cgal::remesh_self_intersection for more details.
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///
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/// @param[in] F #F by 3 list representing triangles.
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/// @param[in] EMAP #F*3 list of indices of unique undirected edges.
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/// @param[in] uE2E #uE list of lists of indices into E of coexisting edges.
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/// @param[out] curves An array of arrays of unique edge indices.
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template<
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typename DerivedF,
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typename DerivedEMAP,
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typename uE2EType>
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IGL_INLINE void extract_non_manifold_edge_curves(
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const Eigen::MatrixBase<DerivedF>& F,
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const Eigen::MatrixBase<DerivedEMAP>& EMAP,
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const std::vector<std::vector<uE2EType> >& uE2E,
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std::vector<std::vector<size_t> >& curves);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "extract_non_manifold_edge_curves.cpp"
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#endif
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#endif
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