// This file is part of libigl, a simple c++ geometry processing library. // // Copyright (C) 2013 Alec Jacobson // // 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_SQUARED_EDGE_LENGTHS_H #define IGL_SQUARED_EDGE_LENGTHS_H #include "igl_inline.h" #include namespace igl { /// Constructs a list of squared lengths of edges opposite each index in a face /// (triangle/tet) list /// /// @tparam DerivedV derived from vertex positions matrix type: i.e. MatrixXd /// @tparam DerivedF derived from face indices matrix type: i.e. MatrixXi /// @tparam DerivedL derived from edge lengths matrix type: i.e. MatrixXd /// @param[in] V eigen matrix #V by 3 /// @param[in] F #F by (2|3|4) list of mesh edges, triangles or tets /// @param[out] L #F by {1|3|6} list of edge lengths squared /// for edges, column of lengths /// for triangles, columns correspond to edges [1,2],[2,0],[0,1] /// for tets, columns correspond to edges /// [3 0],[3 1],[3 2],[1 2],[2 0],[0 1] /// template IGL_INLINE void squared_edge_lengths( const Eigen::MatrixBase& V, const Eigen::MatrixBase& F, Eigen::PlainObjectBase& L); } #ifndef IGL_STATIC_LIBRARY # include "squared_edge_lengths.cpp" #endif #endif