BESVIS tutorial

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BESVIS tutorial

• Zhengyun You
• Peking University
• Apr 28, 2006

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Notes

• Reco output by boss6.0.0 could be displayed.
  (digi.root by jobOption_rec.txt)
• besvis could run only on lxplus01(redhat7.3),
  could NOT run on lxplus03 or some other nodes
  with sl305 for the moment
• You need to open a new terminal for display, as
  it used ROOT 4.03.02 which conflicts with
  ROOT4.04.02 in boss6.0.0

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• After reconstruction, you have a digi.root, you
  want to display it

• Open a new terminal and connect to
  lxplus01.ihep.ac.cn
• Go to the directory where your digi.root
  locates
• source /ihepbatch/besdata/public/youzy/besvis/1.0
  .1/rh73_gcc32/besvis.csh
• Type besvis.exe
• A window pops up
• ( pictures on next page)

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• Double click geom_v.0.0_060428.root to load
  geometry, which takes 5 sec

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• Press Open Event File button to pop up
  a window,
• double click the file (digi.root) you want to
  display

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• Now you get the display of first event in
  digi.root You may need XY view only, now press
  XY view button or Switch Display mode
  button

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• Now you get XY view only, press ZoomIn button
  to expand or enter zoom ratio directly

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• When you need to display mdc only, goto DST
  column and click all ticks with other subsystem
  hits and tracks to cancel them

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• When mouse on Select Tool mode, put
  mouse on track or wires to show related info,
  wires color changed when its related track is
  selected.

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• If you wont show the tag with info of a track,
  click Show Info button,
• click again to show it again.

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• Goto Detector and click wire tick to show all
  wires in mdc.
• (Drawing all wires is time consuming!! now close
  this tick)

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• Click Hand Tool button to move the pad,
  with Zoom button to go to the details
  that you are interested in.

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• Click Select Tool button and put mouse
  on a wire to show info of this digi, its color
  will change.

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• Anytime you want to save a picture, press G on
  your keyboard to pop up a window for saving
  picture, .gif format is recommended.

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• A small trick here, press Cancel now, and you
  could move the tag to a better place, press G
  again to save it.

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• Now you get a 1.gif file.

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• Goto Event and press Next to show the second
  event

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• Some other subsystems

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• ZR view

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• 3D view

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• When on 3D view, press OpenGL button
  to pop up an OpenGL view

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• Or X3D button to pop up an X3D view
  (OpenGL and X3d are quite slow)

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• If you want to show MC data only, comment out all
  rec lines and leave only jobOptions_Save2Root.txt
  active, to convert ASCII MC data to digi.root,
  and open it in besvis

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Some notes

• Besvis could run on other lxplus machine so long
  as its system is RedHat 7.3.
• I have no idea how many lxplus machines with
  rh73 are available
• Fortunately, rec output with ROOT4.04.02 could be
  read by besvis using ROOT4.03.02
• However, since geom package changes a lot and
  still has a lot of bugs in 4.04.02, update to
  ROOTv5 is necessary but not urgent.
• Any problem, inform me youzy_at_hep.pku.cn