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review NPS geometry DB inputs for cluster position calculations #499

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sanghwapark opened this issue Jul 27, 2023 · 0 comments

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sanghwapark commented Jul 27, 2023

Cluster positions are calculated using the shower hit positions (THcNPSShowerHit) and the center of gravity method.
X, Y, X positions of blocks are calculated from f<X,Y,X>Front and f<X,Y,X>Step

hcana/src/THcNPSArray.cxx

Line 217 in eb47666

fXPos = new Double_t* [fNRows];
fXFront and fXStep (and similarly for Y and Z coordinates) are read here:

hcana/src/THcNPSArray.cxx

Line 183 in eb47666

{"_cal_arr_front_x", &fXFront, kDouble},

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