I tried loading the data and got this :

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from yt.mods import * from yt.visualization.api import Streamlines pf = load('bfield.0003.vtk') yt : [ERROR ] 2014-04-17 23:39:04,278 Multiple output type candidates for bfield.0003.vtk: yt : [ERROR ] 2014-04-17 23:39:04,278 Possible: AthenaStaticOutput yt : [ERROR ] 2014-04-17 23:39:04,279 Possible: PlutoStaticOutput Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/lib/python2.7/dist-packages/yt/convenience.py", line 94, in load raise YTOutputNotIdentified(args, kwargs) yt.utilities.exceptions.YTOutputNotIdentified: Supplied ('bfield.0003.vtk',) {}, but could not load!

The grid is static and not AMR (Chombo refinement was not used). Is it not possible to plot data from static output ? V .