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Re: [Opal] trackOrbit

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  • From: jjyang <jianjun.yang AT>
  • To: opal AT
  • Subject: Re: [Opal] trackOrbit
  • Date: Thu, 6 Oct 2011 10:34:37 +0200
  • List-archive: <>
  • List-id: The OPAL Discussion Forum <>

Hi Suzie,

In the parallel codes such as OPAL-CYCL, the prefer choose is trying to dump
most of data into h5 file and as less as data in ASCII file as possible.

For your purpose, there is a easy way to get the data.
You can load the h5 file into H5root and display what you want, then save
this displayed figure in *.cxx format by select "File->Print" and set the
item "Files of type" to "C++ macro".
Then you can get the data for in this code which give you the data for all
particles on the line "graph->SetPoint(...,...,...)".


Jianjun Yang
Massachusetts Institute of Technology

Work Address:
Paul Scherrer Institut WBGB/125
CH-5232 Villigen PSI Switzerland

在 2011-10-5,下午1:00, Suzie Sheehy 写道:

> Hi all,
> A quick question - I want to use the data from tracking 13 particles (with
> no space charge) to determine the transfer matrix and therefore tunes in a
> more accurate way than the 2 particle method currently used. This is a
> standard technique in other tracking codes.
> Using OPAL-CYCL, when I try tracking 13 particles by using the "fromfile"
> command for the distribution, data for all 13 particles is dumped fine into
> the .h5 file, but is there any way to get the phase space data of all 13
> particles to dump to a non-h5 file? (I note that the trackOrbit file is
> only saving information about one or two particles...? Can this be used for
> all 13 somehow?)
> Thanks,
> Suzie
> -----------------------------------------
> Suzie Sheehy
> Research Fellow and 2010 Brunel Fellow
> Royal Commission for the Exhibition of 1851
> ASTeC Intense Beams Group
> Rutherford Appleton Laboratory (R2, 403)
> Didcot, Oxon, OX11 0QX
> -----------------------------------------
> +44 (0)1235 446 782
> suzie.sheehy AT
> -----------------------------------------
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> Scanned by iCritical.
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  • [Opal] trackOrbit, Suzie Sheehy, 10/05/2011
    • Re: [Opal] trackOrbit, jjyang, 10/06/2011

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