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updates to HFT-CA codes
Updated on Fri, 2015-09-04 09:59. Originally created by bouchet on 2015-09-01 12:48.
GOAL : modified codes to work in a (more) stable library -> revert to starnew (SL15i, new compiler gcc 4.8.2)
codes at :
2) hits smearing
I have re-enabled the hits smearing for PXL, IST and SST.
How it works :
codes at :
/star/institutions/ksu/bouchet/4Yifei/20150831Changes done in :
- pams/sim/g2t tables ( g2t_pix.F, g2t_ist.F, g2t_ssd.F) ; reason is because the generated hits are saved in local coordinates but the CA codes needs global coordinates
- StRoot/StPxlSimMaker, StRoot/StIstSimMaker : since hits are saved in global coordinates now, discard the 1st LocalToGlobal transformation (alternative : GlobalToLocal --> smearing in local --> LocalToGlobal)
- added sst codes : StSstFastSimMaker, StSstDbMaker
- cvs co StRoot/StBFChain and added CAMaker, sstfast option
- ssd hit --> sst hit in StCAMaker
logical Local/.false./ ! local coords requested by pixel group 10/11/13 jcw
*
G2T_PIX=STAFCV_OK
if (g2t_pix_hit_h.maxlen.le.0) return
*
i=0
g2t_pix_hit_h.nok = 0
call G2R_GET_SYS ('PIXL','PLAC',Iprin,Idigi)
if (Iprin.lt.0) go to 99
Local = Idigi.ge.2
2) hits smearing
I have re-enabled the hits smearing for PXL, IST and SST.
How it works :
- hits are moved into local coordinates via TGeoHMatrix (globalPos-->localPos)
- X,Z poistions are smeared according their respective resolution (localPos --> localPosSmeared)
- hits are moved back to global coordinates (localPosSmeared --> globalPosSmeared)
example for 3 PXL hits (1st station)
no smearing :
3) codes, how-to
no smearing :
20
-0.798798 2.75051 5.70582
1.44e-06 0 1.44e-06
0 0 1.85344
-2.26155 7.74499 6.22461
1.44e-06 0 1.44e-06
1 1 1.8549
-3.13084 -0.55507 3.58944
1.44e-06 0 1.44e-06
0 2 -2.96613
with smearing :
Differences are every small as expected.
20
-0.799565 2.75057 5.70552
1.44e-06 0 1.44e-06
0 0 1.85369
-2.26137 7.74499 6.22588
1.44e-06 0 1.44e-06
1 1 1.85488
-3.13107 -0.555622 3.58859
1.44e-06 0 1.44e-06
0 2 -2.96597
3) codes, how-to
/star/institutions/ksu/bouchet/4Yifei/20150831/pamsand
/star/institutions/ksu/bouchet/4Yifei/20150831/StRoot
to compile :
1) copy code below
2) log in starnew
3) cons pams
4) cons StRoot
(better to compile pams first, meaning w/o StRoot and then copy StRoot and compile)
1) copy code below
2) log in starnew
3) cons pams
4) cons StRoot
(better to compile pams first, meaning w/o StRoot and then copy StRoot and compile)
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