{"action":"created","issue":{"url":"https://api.github.com/repos/pybind/pybind11/issues/573","repository_url":"https://api.github.com/repos/pybind/pybind11","labels_url":"https://api.github.com/repos/pybind/pybind11/issues/573/labels{/name}","comments_url":"https://api.github.com/repos/pybind/pybind11/issues/573/comments","events_url":"https://api.github.com/repos/pybind/pybind11/issues/573/events","html_url":"https://github.com/pybind/pybind11/issues/573","id":197731146,"number":573,"title":"Documentation of the Eigen wrapper unclear","user":{"login":"ludwigschmidt","id":1235422,"avatar_url":"https://avatars.githubusercontent.com/u/1235422?v=3","gravatar_id":"","url":"https://api.github.com/users/ludwigschmidt","html_url":"https://github.com/ludwigschmidt","followers_url":"https://api.github.com/users/ludwigschmidt/followers","following_url":"https://api.github.com/users/ludwigschmidt/following{/other_user}","gists_url":"https://api.github.com/users/ludwigschmidt/gists{/gist_id}","starred_url":"https://api.github.com/users/ludwigschmidt/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ludwigschmidt/subscriptions","organizations_url":"https://api.github.com/users/ludwigschmidt/orgs","repos_url":"https://api.github.com/users/ludwigschmidt/repos","events_url":"https://api.github.com/users/ludwigschmidt/events{/privacy}","received_events_url":"https://api.github.com/users/ludwigschmidt/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":12,"created_at":"2016-12-27T17:05:16Z","updated_at":"2017-01-21T00:30:25Z","closed_at":null,"body":"I'm a little confused by the documentation about the Eigen <-> Numpy conversion. In particular, the documentation has an example where the information is not propagated to the caller:\r\n\r\nhttp://pybind11.readthedocs.io/en/master/advanced/cast/eigen.html\r\n\r\nWhy does the example not have the desired effect? As I understand, the Eigen and Numpy objects use the same memory buffer (via the buffer protocol). So although the Eigen object itself is not modified, the shared memory buffer should be.\r\n\r\nThank you for creating the pybind11 project!"},"comment":{"url":"https://api.github.com/repos/pybind/pybind11/issues/comments/274215478","html_url":"https://github.com/pybind/pybind11/issues/573#issuecomment-274215478","issue_url":"https://api.github.com/repos/pybind/pybind11/issues/573","id":274215478,"user":{"login":"jagerman","id":4459524,"avatar_url":"https://avatars.githubusercontent.com/u/4459524?v=3","gravatar_id":"","url":"https://api.github.com/users/jagerman","html_url":"https://github.com/jagerman","followers_url":"https://api.github.com/users/jagerman/followers","following_url":"https://api.github.com/users/jagerman/following{/other_user}","gists_url":"https://api.github.com/users/jagerman/gists{/gist_id}","starred_url":"https://api.github.com/users/jagerman/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jagerman/subscriptions","organizations_url":"https://api.github.com/users/jagerman/orgs","repos_url":"https://api.github.com/users/jagerman/repos","events_url":"https://api.github.com/users/jagerman/events{/privacy}","received_events_url":"https://api.github.com/users/jagerman/received_events","type":"User","site_admin":false},"created_at":"2017-01-21T00:30:25Z","updated_at":"2017-01-21T00:30:25Z","body":"Just submitted PR #610.  It's fairly big in that it essentially rewrites the dense Eigen support, so I suggest it sits around for a while to attract comments before merging.  @uentity @yesint @ludwigschmidt @jbremnant @patrikhuber (and all the usual suspects) I'd appreciate any comments on it!"}}
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