// 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_RANDOM_POINTS_ON_MESH_INTRINSIC_H #define IGL_RANDOM_POINTS_ON_MESH_INTRINSIC_H #include "igl_inline.h" #include "generate_default_urbg.h" #include #include namespace igl { /// Randomly sample a mesh (V,F) n times. /// /// @param[in] n number of samples /// @param[in] dblA #F list of double areas of triangles /// @param[out] B n by 3 list of barycentric coordinates, ith row are coordinates of /// ith sampled point in face FI(i) /// @param[out] FI n list of indices into F /// @param[in,out] urbg An instance of UnformRandomBitGenerator. template < typename DeriveddblA, typename DerivedB, typename DerivedFI, typename URBG = DEFAULT_URBG> IGL_INLINE void random_points_on_mesh_intrinsic( const int n, const Eigen::MatrixBase & dblA, Eigen::PlainObjectBase & B, Eigen::PlainObjectBase & FI, URBG && urbg = igl::generate_default_urbg()); /// \overload /// /// @param[in] num_vertices number of vertices in mesh /// @param[in] F #F by 3 list of mesh triangle indices /// @param[out] B n by num_vertices sparse matrix so that B*V produces a list /// of sample points if dbl = doublearea(V,F) /// template < typename DeriveddblA, typename DerivedF, typename ScalarB, typename DerivedFI, typename URBG> IGL_INLINE void random_points_on_mesh_intrinsic( const int n, const Eigen::MatrixBase & dblA, const int num_vertices, const Eigen::MatrixBase & F, Eigen::SparseMatrix & B, Eigen::PlainObjectBase & FI, URBG && urbg); } #ifndef IGL_STATIC_LIBRARY # include "random_points_on_mesh_intrinsic.cpp" #endif #endif