1 // This file is part of libigl, a simple c++ geometry processing library. 2 // 3 // Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>, Olga Diamanti <olga.diam@gmail.com> 4 // 5 // This Source Code Form is subject to the terms of the Mozilla Public License 6 // v. 2.0. If a copy of the MPL was not distributed with this file, You can 7 // obtain one at http://mozilla.org/MPL/2.0/. 8 9 #ifndef IGL_CROSS_FIELD_MISSMATCH_H 10 #define IGL_CROSS_FIELD_MISSMATCH_H 11 #include "igl_inline.h" 12 #include <Eigen/Core> 13 namespace igl 14 { 15 // Calculates the missmatch (integer), at each face edge, of a cross field defined on the mesh faces. 16 // The integer missmatch is a multiple of pi/2 that transforms the cross on one side of the edge to 17 // the cross on the other side. It represents the deviation from a Lie connection across the edge. 18 19 // Inputs: 20 // V #V by 3 eigen Matrix of mesh vertex 3D positions 21 // F #F by 3 eigen Matrix of face (quad) indices 22 // PD1 #F by 3 eigen Matrix of the first per face cross field vector 23 // PD2 #F by 3 eigen Matrix of the second per face cross field vector 24 // isCombed boolean, specifying whether the field is combed (i.e. matching has been precomputed. 25 // If not, the field is combed first. 26 // Output: 27 // Handle_MMatch #F by 3 eigen Matrix containing the integer missmatch of the cross field 28 // across all face edges 29 // 30 31 template <typename DerivedV, typename DerivedF, typename DerivedM> 32 IGL_INLINE void cross_field_missmatch(const Eigen::PlainObjectBase<DerivedV> &V, 33 const Eigen::PlainObjectBase<DerivedF> &F, 34 const Eigen::PlainObjectBase<DerivedV> &PD1, 35 const Eigen::PlainObjectBase<DerivedV> &PD2, 36 const bool isCombed, 37 Eigen::PlainObjectBase<DerivedM> &missmatch); 38 } 39 #ifndef IGL_STATIC_LIBRARY 40 #include "cross_field_missmatch.cpp" 41 #endif 42 43 #endif 44