[yt-users] Particles in FLASH output

[Nathan Goldbaum]

On Tue, Apr 28, 2015 at 11:36 AM, Jason Galyardt <jason.galyardt at gmail.com>
wrote:

> Hi all,
>
> I'm sure I've just overlooked some bit of documentation, but I'm having
> trouble plotting particles generated by FLASH on top of the gas density.
> I've been able to load a plot file with the associated particle file via
>
> ds = yt.load(plotfileName, particle_filename=partfileName)
>
>
> However, when I try to create a projection and annotate the particles with
>
> p = yt.ProjectionPlot(ds, "y", "density")
> p.annotate_particles(1.0)                      # ValueError!
> # p.annotate_particles((4.0, 'kpc'))         # ValueError!
>
>
Can you pastebin the full error traceback?  Which yt version are you using?


> I get a ValueError from h5py indicating that zero-length selections are
> not allowed. I have also tried passing the full width of the simulation
> domain to the annotation function without success. I suspect that this is a
> user error stemming from differences between the way that Enzo and FLASH
> store particle data. However, I can't find much in the way of documentation
> or examples for the FLASH particle data format.
>
> Of course, it would also be handy to be able to write my own analysis
> scripts using both gas and particles, but for now, I'll settle for any help
> I can get on simple plotting functionality.
>
> Thanks,
>
> Jason Galyardt
> Department of Physics and Astronomy
> University of Georgia
>
>
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>
>
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