Difference between revisions of "Data viewer"
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| − | The command " | + | The command "cxi.pyana" can be configured to display the diffraction images streamed from an XTC file. |
== Configuring the viewer == | == Configuring the viewer == | ||
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</pre> | </pre> | ||
The command will marshal together all events from streams 0-4 in run 7 of experiment 346. Those events with the CXI imaging detector with the given <code>address</code> will be sent to the <code>mod_view</code> module that displays images in a GUI. Dark subtraction is done with the files <code>dark_path</code> and <code>dark_stddev</code> that are described on the [[Preparatory steps]] wiki page. | The command will marshal together all events from streams 0-4 in run 7 of experiment 346. Those events with the CXI imaging detector with the given <code>address</code> will be sent to the <code>mod_view</code> module that displays images in a GUI. Dark subtraction is done with the files <code>dark_path</code> and <code>dark_stddev</code> that are described on the [[Preparatory steps]] wiki page. | ||
| − | + | Important parameters are: | |
* <code>n_update</code>: GUI will only display every Nth event (every 120th image, in this example). | * <code>n_update</code>: GUI will only display every Nth event (every 120th image, in this example). | ||
* <code>n_collate</code>: GUI will display an average image over the last N events (last 60 events, in this example). | * <code>n_collate</code>: GUI will display an average image over the last N events (last 60 events, in this example). | ||
| + | '''Critical step:''' | ||
| + | '''Please press the Run/Pause (green) button in the GUI to make the action start.''' | ||
Latest revision as of 16:16, 19 October 2016
The command "cxi.pyana" can be configured to display the diffraction images streamed from an XTC file.
Configuring the viewer
Add to the mod_view section of your pyana config file as follows:
[pyana] modules = my_ana_pkg.mod_view num-cpu = 1 [my_ana_pkg.mod_view] address = CxiDs1-0|Cspad-0 calib_dir = /reg/g/cctbx/sources/cctbx_project/xfel/metrology/CSPad/run4/CxiDs1.0_Cspad.0 dark_path = /reg/d/psdm/cxi/cxib9713/res/darks/r0001-Ds1-avg.pickle dark_stddev = /reg/d/psdm/cxi/cxib9713/res/darks/r0001-Ds1-stddev.pickle detz_offset = 555 # Suitable values depend on the repetition rate of the instrument. n_update = 120 n_collate = 60
The command is run as follows:
cxi.pyana -c myconfig_file.cfg /path/to/xtc/streams/e346-r0007-s0[0-4]-c00.xtc
The command will marshal together all events from streams 0-4 in run 7 of experiment 346. Those events with the CXI imaging detector with the given address will be sent to the mod_view module that displays images in a GUI. Dark subtraction is done with the files dark_path and dark_stddev that are described on the Preparatory steps wiki page.
Important parameters are:
-
n_update: GUI will only display every Nth event (every 120th image, in this example). -
n_collate: GUI will display an average image over the last N events (last 60 events, in this example).
Critical step: Please press the Run/Pause (green) button in the GUI to make the action start.
