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  • File section: Shows a list of currently selected file(s). As you may have guessed, "File Browser" opens a file browser and "Clear File List" clears the current list of files. This section also allows you to add a file name by hand (or paste).
  • Scan section: The two buttons to the left allows you to scan the xtc file to get a summary of what datagrams are stored in it. Note, for most purposes, a "Quick Scan" is sufficient. If you need to scan the whole file, e.g. if you want to know the total number of events, number of calibration cycles, etc, you can enable the "Scan File(s)" button. If the files are big, this will take a lot of time...

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Main window before any file selection.
Click on "File Browser..." to select file(s).

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File browser

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Main window after a file has been selected. File name and file size is shown in the GUI. If the file is not too big, you can click the "Scan File(s)" button to get exact contents of the whole file. If the file is big, it's better to do a "Quick Scan" which will tell you all you need to know (except count number of events and calibration cycles).

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After scanning, a new GUI will pop up showing you a list of detectors/devices found in the file. A little more information is written to the terminal window too.

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Main window (top) after the file scan. In this case the file contain several "calibration cycles" (motor scan steps), and the GUI lists number of calibration cycles and number of events. Some more information is printed to the terminal window from which the xtcbrowser was launched.

Another window, pyana control center (bottom), also pops up, which has a few fields. "In the file(s):" In front of each detector/device name is a checkbox, where you can select which datagrams you are interested in analysing / plotting. To the right of this is a field with some general information and where you can set general parameters for pyana processing and plotting in this GUI, among them how often to update plots (default is every 100 events).

Once you checkmark the detectors you want to display information from, another tab will pop up showing pyana configuration text. "Current pyana configuration": as you select devices from the list, a tentative configuration file for running pyana is written and shown in this field.

If a ControlPV is present and checked off, only a pyana_scan module will be used. All the other devices you check will be added to the input of the scan.
If no ControlPV is used, other pyana modules will be configured as appropriate to display a variety of information from the events.
If "Epics Process Variables" are checked off, another Gui appears that lists all the epics variables. Select the ones you want to display.

Press the "Write configuration to file" button once you're done. You can further edit the file by hand if you want. Once a file is written, a "Run pyana" button will appear.

"Run pyana" lauches an input GUI that shows you the runstring. You can use the same runstring from the command line. Or hit "OK" and it'll run.

After launching pyana, another button "Quit pyana" appears... If you see you need to change parameters, you can stop pyana, edit the configuration file, and start over again.

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