Hi Sam, The obtain_position_vector will provide one of two results. If it is supplied a 1D field (i.e., from a flattened data container) it will return an array of shape [3,N] where N is the number of points in the input position. If it is supplied 3D fields, which almost always come from either access a grid or gridded field directly, or when a derived field has a ValidateSpatial validator, it will return a field of shape [3, I, J, K] where I,J,K are the dimensions of the grid. I believe that the gravitational_binding_energy will always receive and return 1D arrays. On Fri, May 8, 2020 at 7:03 AM Sam Patrick via yt-users wrote:

Hello,

I'm editing code which contains the functions 'obtain_position_vector' and 'gravitational_binding_energy' within the utilities.lib.misc_utilities module and looking through their documentation. Although mostly self-explanatory I couldn't find any further information on this module on the yt website other than a list of it's comprising functions. Could anyone elaborate on the exact format of the data these functions return?

Many thanks, Sam Patrick _______________________________________________ yt-users mailing list -- yt-users@python.org To unsubscribe send an email to yt-users-leave@python.org https://mail.python.org/mailman3/lists/yt-users.python.org/ Member address: matthewturk@gmail.com