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h1. Content
{toc}
h1. Introduction
Offline analysis software for LCLS data historically pass a few stages;
* {PCDS:myana} -- the first C-based package,
* {PCDS:pyana} -- python-based framework,
* {PCDS:psana} -- C\+\+-based framework.
Currently, features of both frameworks are combined together under the unified
* {PCDS:psana} -- framework, which works both with C\+\+ and python modules.
This new framework allows data processing using advantage of both C\+\+ and python modules. However, there is no full backward compatibility between new {{psana}} framework and {PCDS:pyana} modules. Original {PCDS:pyana} modules would not work directly in {{psana}}, they need to be changed. In this note we discuss the difference between {PCDS:pyana} and python-{PCDS:psana} modules and present the references to documentation, which help to migrate from {PCDS:pyana} to python-{PCDS:psana}.
h1. Data types and access methods
LCLS data types have different implementation in pyana and python-psana. Auto-generated from source code documentation is available in
* [https://pswww.slac.stanford.edu/swdoc/releases/ana-current/pyana-ref/html/] for pyana and
* [https://pswww.slac.stanford.edu/swdoc/releases/ana-current/psana-ref/html/] for python-psana.
From this documentation it is clear that there is no full backward compatibility between these libraries; data types and access methods are different. Below we present a list of references with code examples for both frameworks.
h1. Access to data in pyana and psana
h2. Acqiris
|| pyana || psana ||
| [pdsdata.acqiris|https://pswww.slac.stanford.edu/swdoc/releases/ana-current/pyana-ref/html/_pdsdata/#module-_pdsdata.acqiris] | [Psana.Acqiris|https://pswww.slac.stanford.edu/swdoc/releases/ana-current/psddl_psana/pkg.Psana.Acqiris.html] |
| {{config = |
Content
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Release
Available beginning from release ana-0.9.0
Interactive psana
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% ipython
from psana import *
help(psana.CsPad)
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Access to data in pyana and psana
Acqiris
...
pyana
...
psana
...
env.getConfig(xtc.TypeId.Type.Id_AcqConfig, self.m_src) |
...
}} | {{config = env.configStore().get("Psana::Acqiris::Config", self.m_src) |
...
}} | | {{acqData = evt.get(xtc.TypeId.Type.Id_AcqWaveform, self.m_src) |
...
}} | {{acqData = evt.get("Psana::Acqiris::DataDesc", self.m_src).data_list() |
...
}} | | access to data also differs... |
...
Bld
...
pyana
...
psana
...
| | h2. Bld || pyana || psana || | {{data = evt.get(xtc.TypeId.Type.Id_FEEGasDetEnergy, self.m_src) |
...
}} | {{}} |
...
| | {{data = evt.get(xtc.TypeId.Type.Id_EBeam, self.m_src) |
...
}} | {{}} |
...
| | {{data = evt.get(xtc.TypeId.Type.Id_PhaseCavity, self.m_src) |
...
}} | {{}} |
...
| | {{data = evt.get(xtc.TypeId.Type.Id_GMD, self.m_src) |
...
}} | {{}} |
...
| | {{}} |
...
| {{}} |
...
| | {{}} |
...
| {{}} |
...
CSPad
...
pyana
...
psana
| h2. CSPad || pyana || psana || | {{}} |
...
| {{}} |
...
CSPad2x2
...
pyana
...
psana
| h2. CSPad2x2 || pyana || psana || | {{}} |
...
| {{}} |
...
Epics
...
pyana
...
psana
| h2. Epics || pyana || psana || | {{}} |
...
| {{}} |
...
Evr
...
pyana
...
psana
| h2. Evr || pyana || psana || | {{}} |
...
| {{}} |
...
Pnccd
...
pyana
...
psana
| h2. Pnccd || pyana || psana || | {{}} |
...
| {{}} |
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Princeton
...
pyana
...
psana
| h2. Princeton || pyana || psana || | {{}} |
...
| {{}} |
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Ipimb
...
pyana
...
psana
| h2. Ipimb || pyana || psana || | {{}} |
...
| {{}} |
...
Timepix
...
pyana
...
psana
| h2. Timepix || pyana || psana || | {{}} |
...
| {{}} |
...
pyana
...
psana
| h2. || pyana || psana || | {{}} |
...
| {{}} |
...
References
...
| h1. Interactive psana Interactive psana is available beginning from [release|https://pswww.slac.stanford.edu/trac/psdm/browser/psdm/_releases] ana-0.9.0. Example of how to start interactive python-psana: {code} % ipython from psana import * help(psana.CsPad) {code} h1. References * Auto-generated documentation for pyana modules: [https://pswww.slac.stanford.edu/swdoc/releases/ana-current/pyana-ref/html/] * Auto-generated documentation for python modules in psana: [https://pswww.slac.stanford.edu/swdoc/releases/ana-current/psana-ref/html/] |
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