Mailing List picongpu-users@hzdr.de Message #30
From: Huebl, Axel <a.huebl@hzdr.de>
Subject: Re: hdf5 data and density absolute value
Date: Mon, 10 Aug 2015 17:00:34 +0200
To: <picongpu-users@hzdr.de>
Signed Data (Text SHA1)
Hi Tadzio,


the best way to explore the HDF5 syntax is to just open the file in
HDFView (also available in package repositories for ubuntu/debian and
other platforms)
  https://www.hdfgroup.org/products/java/hdfview/

All our stored data sets are normed, to get their value in SI units just
multiply them with the attribute "sim_unit".

The "density" per species is currently actually a "charge density", so
it will be negative for your electrons.

The axis are C-style, making them z, y, x. Absolute size in cells and
offsets are also encoded in an attribute, see
  https://github.com/ComputationalRadiationPhysics/picongpu/issues/924

> PS: wonderful code!

Thanks (on behalf of all developers)! :)

Best,
Axel

On 10.08.2015 16:54, Tadzio Levato wrote:
> Hi,
>
> I'm using hdf5 output and open it with matlab,
>
> for the density I obtain value in the range 0 ad -1.
>
> how to obtain the electron density absolute value ?
> how to obtain the absolute axis of the window in the 3 directions ?
>
> best
> Tadzio
>
> PS: wonderful code!
>

--

Axel Huebl
Phone +49 351 260 3582
https://www.hzdr.de/crp
Computational Radiation Physics
Laser Particle Acceleration Division
Helmholtz-Zentrum Dresden - Rossendorf e.V.

Bautzner Landstrasse 400, 01328 Dresden
POB 510119, D-01314 Dresden
Vorstand: Prof. Dr.Dr.h.c. R. Sauerbrey
          Prof. Dr.Dr.h.c. P. Joehnk
VR 1693 beim Amtsgericht Dresden

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Huebl, Axel <a.huebl@hzdr.de>
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