indexing.cpp 1.0 KB

12345678910111213141516171819202122232425262728
  1. // Copyright Jim Bosch & Ankit Daftery 2010-2012.
  2. // Copyright Stefan Seefeld 2016.
  3. // Distributed under the Boost Software License, Version 1.0.
  4. // (See accompanying file LICENSE_1_0.txt or copy at
  5. // http://www.boost.org/LICENSE_1_0.txt)
  6. #include <boost/python/numpy.hpp>
  7. #include <boost/python/slice.hpp>
  8. namespace p = boost::python;
  9. namespace np = boost::python::numpy;
  10. p::object single(np::ndarray ndarr, int i) { return ndarr[i];}
  11. p::object slice(np::ndarray ndarr, p::slice sl) { return ndarr[sl];}
  12. p::object indexarray(np::ndarray ndarr, np::ndarray d1) { return ndarr[d1];}
  13. p::object indexarray_2d(np::ndarray ndarr, np::ndarray d1,np::ndarray d2) { return ndarr[p::make_tuple(d1,d2)];}
  14. p::object indexslice(np::ndarray ndarr, np::ndarray d1, p::slice sl) { return ndarr[p::make_tuple(d1, sl)];}
  15. BOOST_PYTHON_MODULE(indexing_ext)
  16. {
  17. np::initialize();
  18. p::def("single", single);
  19. p::def("slice", slice);
  20. p::def("indexarray", indexarray);
  21. p::def("indexarray", indexarray_2d);
  22. p::def("indexslice", indexslice);
  23. }