// This file is part of libigl, a simple c++ geometry processing library. // // Copyright (C) 2016 Qingan Zhou // // This Source Code Form is subject to the terms of the Mozilla Public License // v. 2.0. If a copy of the MPL was not distributed with this file, You can // obtain one at http://mozilla.org/MPL/2.0/. #ifndef IGL_FLIP_EDGE_H #define IGL_FLIP_EDGE_H #include "igl_inline.h" #include #include namespace igl { /// Flip an edge in a triangle mesh. The edge specified by uei must have /// exactly **two** adjacent faces. Violation will result in exception. /// Another warning: edge flipping could convert manifold mesh into /// non-manifold. /// /// @param[in,out] F #F by 3 list of triangles. /// @param[in,out] E #F*3 by 2 list of all of directed edges /// @param[in,out] uE #uE by 2 list of unique undirected edges /// @param[in,out] EMAP #F*3 list of indices into uE, mapping each directed edge to unique /// undirected edge /// @param[in,out] uE2E #uE list of lists of indices into E of coexisting edges /// @param[in] ue index into uE the edge to be flipped. template < typename DerivedF, typename DerivedE, typename DeriveduE, typename DerivedEMAP, typename uE2EType> IGL_INLINE void flip_edge( Eigen::PlainObjectBase & F, Eigen::PlainObjectBase & E, Eigen::PlainObjectBase & uE, Eigen::PlainObjectBase & EMAP, std::vector > & uE2E, const size_t uei); } #ifndef IGL_STATIC_LIBRARY # include "flip_edge.cpp" #endif #endif