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• Fetching the ControlPV information:
  ControlPV is available from the env object, and since it only changes at the beginning
  of each calibration cycle, the begincalibcycle function is the appropriate place to get it:
  none
  The ControlConfig object may contain several pvControl and pvMonitor objects. In this case
  there's only one, but make sure the name matches anyway: none

• Fetching the IPIMB and PhaseCavity information:
  All the other information that we need, is available through the evt object, and
  event member function is the place to get it:
  none
  Use "XppSb3Ipm-1|Ipimb-0" (a.k.a. IPM3) sum of all channels for normalization and filtering
  none
  Use "XppSb3Pim-1|Ipimb-0" (a.k.a. PIM3) channel 1 as signal
  none
  Get the phase cavity:
  none
  Compute delay time and fill histograms
  none

Edit pyana.cfg to include configuration for xppt_image_analysis, and comment out the delay_scan module:

[pyana]

modules = pyana_examples.xppt_image_analysis
#modules = pyana_examples.xppt_delayscan

[pyana_examples.xppt_image_analysis]
source = XppGon-0|Cspad-0
region = 127.3, 188.4, 95.1, 126.9

[pyana_examples.xppt_delayscan]
controlpv = fs2:ramp_angsft_target
ipimb_norm = XppSb3Ipm-1|Ipimb-0
ipimb_sig = XppSb3Pim-1|Ipimb-0
threshold = 0.1
outputfile = point_scan_delay.npy

Then run the xppt_image_analysis pyana module on xppi0112 run 55:

pyana -n 10 /reg/d/psdm/XPP/xppi0112/xtc/e162-r0055-s00-c00.xtc

*Edit pyana.cfg again and comment out the region parameter (add a semicolon ";" to the beginning of the line).
Run again a single event and try to select a region by mouse clicks instead:*

pyana -n 1 /reg/d/psdm/XPP/xppi0112/xtc/e162-r0055-s00-c00.xtc

• Hit the "Zoom to rectangle" button in the matplotlib toolbar.
• Zoom in on a rectangle around the bright spot in the "Region of interest" plot to the right.
• You should now see the region marked out in the left window.
• Hit the "Zoom" button once more, to go back to normal mode.
• Click on the red rectangle in the left plot to print the region parameters and new Center of mass to screen.