| // This file is part of libigl, a simple c++ geometry processing library. |
| // |
| // Copyright (C) 2018 Alec Jacobson <alecjacobson@gmail.com> |
| // |
| // 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 ACCUMARRY_H |
| #define ACCUMARRY_H |
| #include "igl_inline.h" |
| #include <Eigen/Core> |
| namespace igl |
| { |
| /// Accumulate values in V using subscripts in S. Like Matlab's accumarray. |
| /// |
| /// @param[in] S #S list of subscripts |
| /// @param[in] V #V list of values |
| /// @param[out] A max(subs)+1 list of accumulated values |
| template < |
| typename DerivedS, |
| typename DerivedV, |
| typename DerivedA |
| > |
| void accumarray( |
| const Eigen::MatrixBase<DerivedS> & S, |
| const Eigen::MatrixBase<DerivedV> & V, |
| Eigen::PlainObjectBase<DerivedA> & A); |
| /// Accumulate constant value `V` using subscripts in S. Like Matlab's accumarray. |
| /// |
| /// @param[in] S #S list of subscripts |
| /// @param[in] V single value used for all |
| /// @param[out] A max(subs)+1 list of accumulated values |
| template < |
| typename DerivedS, |
| typename DerivedA |
| > |
| void accumarray( |
| const Eigen::MatrixBase<DerivedS> & S, |
| const typename DerivedA::Scalar V, |
| Eigen::PlainObjectBase<DerivedA> & A); |
| } |
| |
| #ifndef IGL_STATIC_LIBRARY |
| # include "accumarray.cpp" |
| #endif |
| |
| #endif |
