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Questions/remarks on pathfinder [message #2219] Wed, 29 February 2012 08:00 Go to previous message
Messages: 13
Registered: June 2008
Location: LYON
Dear all,

I'm trying to use pathfinder to do tracking in the Hadronic Calorimeter.
For the moment, I'm looking for straight lines.

1) As it is done now, pathfinder can't really find straight lines that are parallel to the z-axis. I'm solving this for the moment by rotating the calorimeter. To get pathfinder able to find tracks parallel to the z-axis, would it need to change deeply the Hough transform computation or just change the fit for the output track parameter ?

2) I've observed that sometimes, the result of pathfinder depends on the way the input vector of basicHit is sorted. Is is a sign that I haven't set the parameters of the finder properly ? Is it an expcted or an unexpected behaviour ?

Thanks for your answers
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