/[PAMELA software]/DarthVader/TrackerLevel2/src/F77/analysisflight.f
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Contents of /DarthVader/TrackerLevel2/src/F77/analysisflight.f

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Revision 1.18 - (show annotations) (download)
Tue Dec 23 11:28:36 2008 UTC (15 years, 11 months ago) by pam-fi
Branch: MAIN
Changes since 1.17: +1 -1 lines
more severe condition for second-track search and some protections added

1 *************************************************************************
2 * Program analysis.f
3 *
4 * - reads cluster information (LEVEL1, reduction.f output ntuple)
5 * - perform track identification and fit
6 * - create LEVEL2 ntuple
7 *
8 *************************************************************************
9 subroutine analysisflight
10
11 include 'commontracker.f'
12 include 'level1.f'
13 include 'common_momanhough.f'
14 include 'common_mech.f'
15 include 'common_xyzPAM.f'
16 include 'common_mini_2.f'
17 include 'calib.f'
18 include 'level2.f'
19
20 * input flag
21 *
22 c integer fin
23
24 * flag to chose PFA
25 character*10 PFA
26 common/FINALPFA/PFA
27
28 c parameter (inf=1.e8) !just a huge number...
29
30 * external functions
31 external npl
32 external acoordsi,coordsi,nld,coord,dcoord
33
34 integer hitplanex(6)
35 integer hitplaney(6)
36
37 logical BAD_NUCLEUS
38
39 ************************************************************
40 ************************************************************
41 ************************************************************
42 *
43 * track analysis
44 *
45 ************************************************************
46 ************************************************************
47 ************************************************************
48
49 call idtoc(pfaid,PFA)
50
51
52 if(DEBUG.EQ.1)then
53 print*,'----------------------------------'
54 print*,'Settings: '
55 print*,'PFA ',pfaid,' ---> ',PFA
56 print*,'tracking mode ',trackmode
57 print*,'fit-tolerance factor ',fact
58 print*,'minimum n.step ',istepmin
59
60 endif
61
62 RECOVER_SINGLETS = .false.
63 RECOVER_NUCLEI = .false.
64 SECOND_SEARCH = .false.
65
66 ntrk_old = 0
67
68 do i=1,nclstr1
69 cl_used(i)=0 !init mask of clusters associated to a track
70 enddo
71 dedx_x_min = dedx_x_min_mip
72 dedx_y_min = dedx_y_min_mip
73 *------------------------------------------------------
74 call init_level2
75 call init_hough
76 *------------------------------------------------------
77
78 888 continue
79
80
81 * ///////////////////////////////////////////////
82 * \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
83
84 iflag=0
85 call track_finding(iflag)
86 if(iflag.eq.1)then !bad event
87 goto 880 !fill ntp and go to next event
88 endif
89
90 * -------------------------------------
91 * fill hough output variables only for the first searc
92 * -------------------------------------
93 if(.not.SECOND_SEARCH)call fill_hough
94
95 iflag=0
96 call track_fitting(iflag)
97
98
99 * ////////////////////////////////////////////////
100 * PATCH to recover events with less than 3 couples
101 * ////////////////////////////////////////////////
102 * if no tracks have been found
103 * and n.planes with at least one couple (planehit)
104 * is less than 3 try to recover applying the hough
105 * transform to singlet
106 nplanehit=0
107 do ip=1,NPLANES
108 if(ncp_plane(ip).gt.0)nplanehit=nplanehit+1
109 enddo
110 if(DEBUG.eq.1)then
111 cc if(.true.)then
112 print*,''
113 print*,'-----------------------------------'
114 print*,'n.tracks ',ntrk
115 print*,'n.hit-planes ',nplanehit
116 endif
117 if(
118 $ .not.RECOVER_SINGLETS.and. !recover only once
119 $ ntrk.eq.0 .and. !no tracks has been found
120 $ nplanehit.le.3 .and. !if less than 3 hit planes (n.real couples)
121 $ .true.)then
122 RECOVER_SINGLETS=.true.
123 cc if(.true.)
124 if(DEBUG.EQ.1)
125 $ print*,' -----> ((( TRY TO RECOVER SINGLETS )))'
126 goto 888 !back to track finding
127 endif
128
129
130 * ////////////////////////////////////////////////
131 * PATCH to recover nuclei
132 * ////////////////////////////////////////////////
133 itrk = ntrk !check the last track first
134 isimage = 0
135 BAD_NUCLEUS=.false.
136 150 continue
137
138 dedxav = 0.
139 npt = 0
140 dedxmin = 1000000
141 if(itrk.gt.0)then
142 do ip=1,NPLANES
143 cc print*,ip,' ** ',dedx_x(ip,itrk),dedx_y(ip,itrk)
144 if(xgood_nt(ip,itrk).eq.1)then
145 dedxav = dedxav + abs(dedx_x(ip,itrk))
146 if(abs(dedx_x(ip,itrk)).lt.dedxmin)
147 $ dedxmin=abs(dedx_x(ip,itrk))
148 npt = npt + 1
149 endif
150 if(ygood_nt(ip,itrk).eq.1)then
151 dedxav = dedxav + abs(dedx_y(ip,itrk))
152 if(abs(dedx_y(ip,itrk)).lt.dedxmin)
153 $ dedxmin=abs(dedx_y(ip,itrk))
154 npt = npt + 1
155 endif
156 enddo
157 if(npt.gt.0)dedxav = dedxav/npt
158 if( dedxav.gt.dedx_min_nuclei )then
159 if( (dedxav-dedxmin)/dedxav.gt.ddedx_min_nuclei )
160 $ BAD_NUCLEUS=.true.
161 endif
162 endif
163 if(DEBUG.eq.1)then
164 cc if(.true.)then
165 print*,''
166 print*,'-----------------------------------'
167 print*,'itrk ',itrk
168 print*,'dedx(average) ',dedxav,' cut ',dedx_min_nuclei
169 print*,'dedx(minimum) ',dedxmin
170 if(dedxav.gt.0)print*,'(av-min)/av',(dedxav-dedxmin)/dedxav
171 $ ,' cut ',ddedx_min_nuclei
172 print*,'BAD_NUCLEUS ? ',BAD_NUCLEUS
173 endif
174
175 itrk=0
176 if(ntrk.gt.0)itrk = image(ntrk)
177 if(itrk.gt.0.and.isimage.eq.0)then !hence check the image
178 isimage=1
179 goto 150
180 endif
181
182
183 if(
184 $ .not.RECOVER_NUCLEI.and. !recover only once
185 $ (ntrk.eq.0.or.BAD_NUCLEUS).and. !no tracks found or bad nucleus
186 $ .true.)then
187
188 RECOVER_NUCLEI = .true.
189 dedx_x_min = dedx_x_min_nuclei
190 dedx_y_min = dedx_y_min_nuclei
191 cc if(.true.)
192 if(DEBUG.EQ.1)
193 $ print*,' -----> ((( TRY TO RECOVER NUCLEI )))'
194 * ----------------------------------------------
195 * in case of re-tracking, un-tag used clusters
196 * ----------------------------------------------
197 if(ntrk.ne.0)then
198 do ip=1,NPLANES
199 if(cltrx(ip,ntrk).ne.0)cl_used(cltrx(ip,ntrk)) = 0 !un-tag used clusters
200 if(cltry(ip,ntrk).ne.0)cl_used(cltry(ip,ntrk)) = 0 !un-tag used clusters
201 enddo
202 ntrk = ntrk-1 !decrement track
203 if(isimage.eq.1)then
204 do ip=1,NPLANES
205 if(cltrx(ip,ntrk).ne.0)cl_used(cltrx(ip,ntrk)) = 0 !un-tag used clusters
206 if(cltry(ip,ntrk).ne.0)cl_used(cltry(ip,ntrk)) = 0 !un-tag used clusters
207 enddo
208 ntrk = ntrk-1 !decrement track image
209 endif
210 endif
211 goto 888 !back to track finding
212
213 endif
214 * ----------------------------------------------
215 * back to default parameters for the second-track search
216 * ----------------------------------------------
217 if(RECOVER_NUCLEI)then
218 dedx_x_min = dedx_x_min_mip
219 dedx_y_min = dedx_y_min_mip
220 RECOVER_NUCLEI = .false.
221 endif
222
223 if(ntrk.eq.0)goto 880
224
225 * /////////////////////////////////////////////////////
226 * PATCH to perform a more efficient second-track search
227 * /////////////////////////////////////////////////////
228 * -------------------------------------------------
229 * n. hit planes and number of clusters
230 * -------------------------------------------------
231 do ip=1,NPLANES
232 hitplanex(ip)=0
233 hitplaney(ip)=0
234 nclusters=0
235 enddo
236 do icl=1,nclstr1
237 ip = npl(VIEW(icl))
238 if(cl_good(icl).eq.0.or.cl_used(icl).eq.1)goto 9
239 if(mod(VIEW(icl),2).eq.1)hitplaney(ip)=hitplaney(ip)+1 !YY
240 if(mod(VIEW(icl),2).eq.0)hitplanex(ip)=hitplanex(ip)+1 !XX
241 nclusters=nclusters+1
242 9 continue
243 enddo
244 nhitplaney=0
245 nhitplanex=0
246 do ip=1,NPLANES
247 if(hitplaney(ip).gt.0)nhitplaney=nhitplaney+1
248 if(hitplanex(ip).gt.0)nhitplanex=nhitplanex+1
249 enddo
250 * -------------------------------------------------
251 * chi2 cut
252 * -------------------------------------------------
253 p0 = 1.111588e+00
254 p1 = 1.707656e+00
255 p2 = 1.489693e-01
256 chi2m025 = p0
257 $ + abs(al_nt(5,ntrk))*p1
258 $ + al_nt(5,ntrk)*al_nt(5,ntrk)*p2
259 chi2m025_0 = p0 + 0.07*p1 + 0.07*0.07*p2
260 cc chi2m = (chi2m025-chi2m025_0+12**0.25)**4. !95%
261 chi2m = (chi2m025-chi2m025_0+20.**0.25)**4. !???
262 * -------------------------------------------------
263 * image track
264 * -------------------------------------------------
265 ntrk_best = ntrk
266 chi2_best = chi2_nt(ntrk)
267 if(image(ntrk).ne.0)
268 $ chi2_best = min(chi2_nt(ntrk),chi2_nt(image(ntrk)))
269 if(DEBUG.eq.1)then
270 cc if(.true.)then
271 print*,''
272 print*,'-----------------------------------'
273 print*,'chi2_nt(',ntrk_best,') = ',chi2_best,' < ',chi2m,' ?'
274 print*,'nhitplanex',nhitplanex
275 print*,'nhitplaney',nhitplaney
276 print*,'nclusters',nclusters
277 endif
278 if(
279 $ ntrk.gt.ntrk_old.and. !one track must have been already found
280 $ chi2_best.gt.0 .and. !this track must not be garbage
281 $ chi2_best.lt.chi2m .and. !"
282 $ nhitplaney.ge.3.and. !a minimum number of hit planes is required
283 $ nhitplanex.ge.3.and. !"
284 $ nclusters.le.20.and. !limit on number of clusters to save time
285 $ .true.)then
286
287 SECOND_SEARCH=.true.
288 c RECOVER_SINGLETS=.true. !OPTIMIZATION
289 ntrk_old=ntrk
290
291 if(DEBUG.EQ.1)
292 cc if(.true.)
293 $ print*,'***** NEW SEARCH ****'
294 goto 888 !back to track finding
295
296 endif
297
298 880 continue
299
300 * **********************************************************
301 * stores info about clusters not associated with any track
302 * **********************************************************
303
304 call fill_level2_siglets
305
306 if(DEBUG.EQ.1)then
307 print*,''
308 print*,'DONE!'
309 print*,''
310 print*,'* summary *'
311 print*,'tracks ',ntrk
312 print*,'cl used ',(cl_used(i),i=1,nclstr1)
313 print*,''
314 print*,''
315 endif
316
317 ngood = 0
318 do iv = 1,nviews
319 ngood = ngood + good1(iv)
320 enddo
321
322 8800 continue
323
324
325 * ///////////////////////////////////////////////
326 * \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
327
328 100 continue
329
330 return
331 end
332
333
334 ************************************************************
335
336

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