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New issue 484: Fields don't know about periodic boundary conditions https://bitbucket.org/yt_analysis/yt/issue/484/fields-dont-know-about-period...
Right now it's hard to figure out whether a simulation was run using periodic boundary conditions. Since some of the fields (in particular, Radius) need to know about the boundary conditions, right now yt assumes periodic boundary conditions. Unfortunately, this leads to incorrect results when (for example) one makes a profile versus Radius of non-periodic data that is near the domain boundaries.
There needs to be some way of passing in the periodicity to the field definition.
See this discussion on yt-dev: http://lists.spacepope.org/pipermail/yt-dev-spacepope.org/2012-December/0027...
A workaround is to locally redefine the various radius fields in a my_plugins.py file or at the top of a script: http://paste.yt-project.org/show/3024/
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