[yt-dev] Issue #878: PlotWindow should fail more gracefully when plotting particle fields (yt_analysis/yt)

[Nathan Goldbaum]

New issue 878: PlotWindow should fail more gracefully when plotting particle fields
https://bitbucket.org/yt_analysis/yt/issue/878/plotwindow-should-fail-more-gracefully

Nathan Goldbaum:

Right now plotting a particle field leads to a crash in the frontend's I/O subsystem when it tries to treat the particle field as if it were a mesh field.

We should check whether we're actually plotting a mesh field and then crash gracefully with a nice error message if we detect a particle field.

Responsible: ngoldbaum