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44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2015 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_UNIQUE_EDGE_MAP_H
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#define IGL_UNIQUE_EDGE_MAP_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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// Construct relationships between facet "half"-(or rather "viewed")-edges E
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// to unique edges of the mesh seen as a graph.
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//
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// Inputs:
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// F #F by 3 list of simplices
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// Outputs:
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// E #F*3 by 2 list of all of directed edges
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// uE #uE by 2 list of unique undirected edges
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// EMAP #F*3 list of indices into uE, mapping each directed edge to unique
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// undirected edge
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// uE2E #uE list of lists of indices into E of coexisting edges
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template <
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typename DerivedF,
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typename DerivedE,
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typename DeriveduE,
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typename DerivedEMAP,
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typename uE2EType>
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IGL_INLINE void unique_edge_map(
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const Eigen::MatrixBase<DerivedF> & F,
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Eigen::PlainObjectBase<DerivedE> & E,
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Eigen::PlainObjectBase<DeriveduE> & uE,
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Eigen::PlainObjectBase<DerivedEMAP> & EMAP,
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std::vector<std::vector<uE2EType> > & uE2E);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "unique_edge_map.cpp"
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#endif
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#endif
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