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************************************************************************ |
************************************************************************ |
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SUBROUTINE MINI_2(ISTEP,IFAIL) |
SUBROUTINE MINI2(ISTEP,IFAIL,IPRINT) |
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IMPLICIT DOUBLE PRECISION (A-H,O-Z) |
IMPLICIT DOUBLE PRECISION (A-H,O-Z) |
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include 'commontracker.f' !tracker general common |
include 'commontracker.f' !tracker general common |
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include 'common_mini_2.f' !common for the tracking procedure |
include 'common_mini_2.f' !common for the tracking procedure |
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logical DEBUG |
c logical DEBUG |
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common/dbg/DEBUG |
c common/dbg/DEBUG |
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parameter (inf=1.e8) !just a huge number... |
parameter (dinf=1.d15) !just a huge number... |
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c------------------------------------------------------------------------ |
c------------------------------------------------------------------------ |
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c variables used in the tracking procedure (mini and its subroutines) |
c variables used in the tracking procedure (mini and its subroutines) |
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c |
c |
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c ordering, but they maintain their Z coordinates. so plane number 1 is |
c ordering, but they maintain their Z coordinates. so plane number 1 is |
| 32 |
c the first one that a particle meets, and its Z coordinate is > 0 |
c the first one that a particle meets, and its Z coordinate is > 0 |
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c------------------------------------------------------------------------ |
c------------------------------------------------------------------------ |
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DATA ZINI/23.5/ !z coordinate of the reference plane |
DATA ZINI/23.5/ !!! ***PP*** to be changed !z coordinate of the reference plane |
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DATA XGOOD,YGOOD/nplanes*1.,nplanes*1./ !planes to be used in the tracking |
c DATA XGOOD,YGOOD/nplanes*1.,nplanes*1./ !planes to be used in the tracking |
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DATA STEPAL/5*1.d-7/ !alpha vector step |
DATA STEPAL/5*1.d-7/ !alpha vector step |
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DATA ISTEPMAX/100/ !maximum number of steps in the chi^2 minimization |
DATA ISTEPMAX/100/ !maximum number of steps in the chi^2 minimization |
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* !the tracking procedure |
* !the tracking procedure |
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DATA STEPMAX/100./ !maximum number of steps in the trackin gprocess |
DATA STEPMAX/100./ !maximum number of steps in the trackin gprocess |
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| 44 |
c DATA ALMAX/inf,inf,inf,inf,0.25e2/ !limits on alpha vector components |
c DATA ALMAX/dinf,dinf,1.,dinf,dinf/ !limits on alpha vector components |
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c DATA ALMIN/-inf,-inf,-inf,-inf,-0.25e2/ !" |
c DATA ALMIN/-dinf,-dinf,-1.,-dinf,-dinf/ !" |
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DATA ALMAX/inf,inf,1.,inf,0.25e2/ !limits on alpha vector components |
DATA ALMAX/dinf,dinf,1.,dinf,dinf/ !limits on alpha vector components |
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DATA ALMIN/-inf,-inf,-1.,-inf,-0.25e2/ !" |
DATA ALMIN/-dinf,-dinf,-1.,-dinf,-dinf/ !" |
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c$$$ DIMENSION DAL(5) !increment of vector alfa |
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DIMENSION CHI2DD_R(4,4),CHI2D_R(4) !hessiano e gradiente di chi2 |
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c elena-------- |
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REAL*8 AVRESX,AVRESY |
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c elena-------- |
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DIMENSION DAL(5) !increment of vector alfa |
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INTEGER IFLAG |
INTEGER IFLAG |
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c-------------------------------------------------------- |
c-------------------------------------------------------- |
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c IFLAG =1 ---- chi2 derivatives computed by using |
c IFLAG =1 ---- chi2 derivatives computed by using |
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c NB: the two metods gives equivalent results BUT |
c NB: the two metods gives equivalent results BUT |
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c method 2 is faster!! |
c method 2 is faster!! |
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c-------------------------------------------------------- |
c-------------------------------------------------------- |
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DATA IFLAG/2/ |
DATA IFLAG/2/ |
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c LOGICAL TRKDEBUG,TRKVERBOSE |
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c COMMON/TRKD/TRKDEBUG,TRKVERBOSE |
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LOGICAL TRKDEBUG,TRKVERBOSE,STUDENT |
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COMMON/TRKD/TRKDEBUG,TRKVERBOSE |
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DIMENSION AL0(5) |
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LOGICAL SUCCESS_NEW,SUCCESS_OLD |
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* |
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* define kind of minimization (0x=chi2+gaussian or 1x=likelihood+student) |
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* |
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STUDENT = .false. |
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IF(MOD(INT(TRACKMODE/10),10).EQ.1) STUDENT = .true. |
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IF(IPRINT.EQ.1) THEN |
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TRKVERBOSE = .TRUE. |
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TRKDEBUG = .FALSE. |
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ELSEIF(IPRINT.EQ.2)THEN |
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TRKVERBOSE = .TRUE. |
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TRKDEBUG = .TRUE. |
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ELSE |
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TRKVERBOSE = .FALSE. |
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TRKDEBUG = .FALSE. |
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ENDIF |
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* ---------------------------------------------------------- |
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* evaluate average spatial resolution |
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* ---------------------------------------------------------- |
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AVRESX = RESXAV |
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AVRESY = RESYAV |
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DO IP=1,6 |
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IF( XGOOD(IP).EQ.1 )THEN |
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NX=NX+1 |
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AVRESX=AVRESX+RESX(IP) |
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ENDIF |
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IF(NX.NE.0)AVRESX=AVRESX/NX |
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IF( YGOOD(IP).EQ.1 )THEN |
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NY=NY+1 |
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AVRESY=AVRESY+RESY(IP) |
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ENDIF |
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IF(NX.NE.0)AVRESY=AVRESY/NY |
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ENDDO |
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* ---------------------------------------------------------- |
* ---------------------------------------------------------- |
| 111 |
* define ALTOL(5) ---> tolerances on state vector |
* define ALTOL(5) ---> tolerances on state vector |
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* |
* |
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* ---------------------------------------------------------- |
* ---------------------------------------------------------- |
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FACT=10. !scale factor to define |
* changed in order to evaluate energy-dependent |
| 115 |
!tolerance on alfa |
* tolerances on all 5 parameters |
| 116 |
ALTOL(1)=RESX(1)/FACT !al(1) = x |
cPP FACT=1.0e10 !scale factor to define tolerance on alfa |
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ALTOL(2)=RESY(1)/FACT !al(2) = y |
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ALTOL(3)=DSQRT(RESX(1)**2 !al(3)=sin(theta) |
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$ +RESY(1)**2)/44.51/FACT |
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ALTOL(4)=ALTOL(3) !al(4)=phi |
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c deflection error (see PDG) |
c deflection error (see PDG) |
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DELETA1=0.01*RESX(1)/0.3/0.4/0.4451**2*SQRT(720./(6.+4.)) |
DELETA1 = 0.01/0.3/0.4/0.4451**2*SQRT(720./(6.+4.)) |
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DELETA2=0.016/0.3/0.4/0.4451*SQRT(0.4451/9.36) |
DELETA2 = 0.016/0.3/0.4/0.4451*SQRT(0.4451/9.36) |
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c$$$ ALTOL(1) = AVRESX/FACT !al(1) = x |
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c$$$ ALTOL(2) = AVRESY/FACT !al(2) = y |
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c$$$ ALTOL(3) = DSQRT(AVRESX**2 !al(3)=sin(theta) |
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c$$$ $ +AVRESY**2)/44.51/FACT |
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c$$$ ALTOL(4) = ALTOL(3) !al(4)=phi |
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c deflection error (see PDG) |
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c$$$ DELETA1 = 0.01*AVRESX/0.3/0.4/0.4451**2*SQRT(720./(6.+4.)) |
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c$$$ DELETA2 = 0.016/0.3/0.4/0.4451*SQRT(0.4451/9.36) |
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* ---------------------------------------------------------- |
* ---------------------------------------------------------- |
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* |
* |
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ISTEP=0 !num. steps to minimize chi^2 |
ISTEP=0 !num. steps to minimize chi^2 |
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JFAIL=0 !error flag |
JFAIL=0 !error flag |
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CALL CHISQ(IFLAG,JFAIL) !chi^2 and its derivatives |
CHI2=0 |
| 133 |
IF(JFAIL.NE.0) THEN |
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| 134 |
IFAIL=1 |
if(TRKDEBUG) print*,'guess: ',al |
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if(DEBUG) |
if(TRKDEBUG) print*,'mini2: step ',istep,chi2,1./AL(5) |
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$ PRINT *,'mini_2 ===> error on CHISQ computation !!!' |
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RETURN |
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ENDIF |
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* |
* |
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* ----------------------- |
* ----------------------- |
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* START MINIMIZATION LOOP |
* START MINIMIZATION LOOP |
| 140 |
* ----------------------- |
* ----------------------- |
| 141 |
10 ISTEP=ISTEP+1 !<<<<<<<<<<<<<< NEW STEP !! |
10 ISTEP=ISTEP+1 !<<<<<<<<<<<<<< NEW STEP !! |
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CHI2_P=CHI2 |
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c print*,'@@@@@ ',istep,' - ',al |
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cost=1e-7 |
* ------------------------------- |
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DO I=1,5 |
* **** Chi2+gaussian minimization |
| 145 |
DO J=1,5 |
* ------------------------------- |
| 146 |
CHI2DD(I,J)=CHI2DD(I,J)*COST |
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| 147 |
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IF(.NOT.STUDENT) THEN |
| 148 |
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| 149 |
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CALL CHISQ(IFLAG,JFAIL) !chi^2 and its derivatives |
| 150 |
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IF(JFAIL.NE.0) THEN |
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IFAIL=1 |
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CHI2=-9999. |
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if(TRKVERBOSE) |
| 154 |
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$ PRINT *,'*** ERROR in mini *** wrong CHISQ' |
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RETURN |
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ENDIF |
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c COST=1e-5 |
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COST=1. |
| 160 |
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DO I=1,5 |
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IF(CHI2DD(I,I).NE.0.)COST=COST/DABS(CHI2DD(I,I))**0.2 |
| 162 |
ENDDO |
ENDDO |
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CHI2D(I)=CHI2D(I)*COST |
DO I=1,5 |
| 164 |
ENDDO |
DO J=1,5 |
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CHI2DD(I,J)=CHI2DD(I,J)*COST |
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ENDDO |
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c$$$ CHI2D(I)=CHI2D(I)*COST |
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ENDDO |
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IF(PFIXED.EQ.0.) THEN |
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*------------------------------------------------------------* |
*------------------------------------------------------------* |
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* track fitting with FREE deflection |
* track fitting with FREE deflection |
| 174 |
*------------------------------------------------------------* |
*------------------------------------------------------------* |
| 175 |
CALL DSFACT(5,CHI2DD,5,IFA,DET,JFA) !CHI2DD matrix determinant |
CALL DSFACT(5,CHI2DD,5,IFA,DET,JFA) !CHI2DD matrix determinant |
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IF(IFA.NE.0) THEN !not positive-defined |
IF(IFA.NE.0) THEN !not positive-defined |
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if(DEBUG)then |
if(TRKVERBOSE)then |
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PRINT *, |
PRINT *, |
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$ 'MINI_HOUGH ==> '// |
$ '*** ERROR in mini ***'// |
| 180 |
$ '** ERROR ** on matrix inversion (not positive-defined)!!!' |
$ 'on matrix inversion (not pos-def)' |
| 181 |
$ ,DET |
$ ,DET |
| 182 |
endif |
endif |
| 183 |
IFAIL=1 |
IF(CHI2.EQ.0) CHI2=-9999. |
| 184 |
RETURN |
IF(CHI2.GT.0) CHI2=-CHI2 |
| 185 |
ENDIF |
IFAIL=1 |
| 186 |
CALL DSFINV(5,CHI2DD,5) !CHI2DD matrix inversion |
RETURN |
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ENDIF |
| 188 |
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CALL DSFINV(5,CHI2DD,5) !CHI2DD matrix inversion |
| 189 |
* ******************************************* |
* ******************************************* |
| 190 |
* find new value of AL-pha !* |
* find new value of AL-pha |
| 191 |
* !* |
* ******************************************* |
| 192 |
DO I=1,5 !* |
DO I=1,5 |
| 193 |
DAL(I)=0. !* |
DAL(I)=0. |
| 194 |
DO J=1,5 !* |
DO J=1,5 |
| 195 |
DAL(I)=DAL(I)-CHI2DD(I,J)*CHI2D(J) !* |
DAL(I)=DAL(I)-CHI2DD(I,J)*CHI2D(J) *COST |
| 196 |
COV(I,J)=CHI2DD(I,J) !* |
COV(I,J)=2.*COST*CHI2DD(I,J) |
| 197 |
ENDDO !* |
ENDDO |
| 198 |
ENDDO !* |
ENDDO |
| 199 |
DO I=1,5 !* |
DO I=1,5 |
| 200 |
AL(I)=AL(I)+DAL(I) !* |
AL(I)=AL(I)+DAL(I) |
| 201 |
ENDDO !* |
ENDDO |
| 202 |
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*------------------------------------------------------------* |
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* track fitting with FIXED deflection |
| 204 |
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*------------------------------------------------------------* |
| 205 |
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ELSE |
| 206 |
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AL(5)=1./PFIXED |
| 207 |
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DO I=1,4 |
| 208 |
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CHI2D_R(I)=CHI2D(I) |
| 209 |
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DO J=1,4 |
| 210 |
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CHI2DD_R(I,J)=CHI2DD(I,J) |
| 211 |
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ENDDO |
| 212 |
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ENDDO |
| 213 |
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CALL DSFACT(4,CHI2DD_R,4,IFA,DET,JFA) |
| 214 |
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IF(IFA.NE.0) THEN |
| 215 |
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if(TRKVERBOSE)then |
| 216 |
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PRINT *, |
| 217 |
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$ '*** ERROR in mini ***'// |
| 218 |
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$ 'on matrix inversion (not pos-def)' |
| 219 |
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$ ,DET |
| 220 |
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endif |
| 221 |
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IF(CHI2.EQ.0) CHI2=-9999. |
| 222 |
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IF(CHI2.GT.0) CHI2=-CHI2 |
| 223 |
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IFAIL=1 |
| 224 |
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RETURN |
| 225 |
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ENDIF |
| 226 |
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CALL DSFINV(4,CHI2DD_R,4) |
| 227 |
* ******************************************* |
* ******************************************* |
| 228 |
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* find new value of AL-pha |
| 229 |
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* ******************************************* |
| 230 |
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DO I=1,4 |
| 231 |
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DAL(I)=0. |
| 232 |
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DO J=1,4 |
| 233 |
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DAL(I)=DAL(I)-CHI2DD_R(I,J)*CHI2D_R(J) *COST |
| 234 |
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COV(I,J)=2.*COST*CHI2DD_R(I,J) |
| 235 |
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ENDDO |
| 236 |
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ENDDO |
| 237 |
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DAL(5)=0. |
| 238 |
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DO I=1,4 |
| 239 |
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AL(I)=AL(I)+DAL(I) |
| 240 |
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ENDDO |
| 241 |
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ENDIF |
| 242 |
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| 243 |
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if(TRKDEBUG) print*,'mini2: step ',istep,chi2,1./AL(5) |
| 244 |
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| 245 |
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c$$$ PRINT*,'DAL ',(DAL(K),K=1,5) |
| 246 |
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c$$$ PRINT*,'CHI2DOLD ',(CHI2DOLD(K),K=1,5) |
| 247 |
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| 248 |
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| 249 |
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ENDIF |
| 250 |
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| 251 |
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* ------------------------------- |
| 252 |
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* **** Likelihood+Student minimization |
| 253 |
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* ------------------------------- |
| 254 |
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| 255 |
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IF(STUDENT) THEN |
| 256 |
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CALL CHISQSTT(1,JFAIL) |
| 257 |
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DO I=1,5 |
| 258 |
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DAL(I)=0. |
| 259 |
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DO J=1,5 |
| 260 |
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DAL(I)=DAL(I)-CHI2DD(I,J)*CHI2D(J) |
| 261 |
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ENDDO |
| 262 |
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ENDDO |
| 263 |
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| 264 |
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DO I=1,5 |
| 265 |
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DO j=1,5 |
| 266 |
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COV(I,J) = 2.*CHI2DD(I,J) |
| 267 |
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ENDDO |
| 268 |
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ENDDO |
| 269 |
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| 270 |
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CHI2TOLL = 1.E-3 |
| 271 |
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ALPHA = 3.0 |
| 272 |
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BETA = -0.4 |
| 273 |
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E=1. |
| 274 |
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EA=1. |
| 275 |
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EB=1. |
| 276 |
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EC=1. |
| 277 |
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FA=1. |
| 278 |
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FB=1. |
| 279 |
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FC=1. |
| 280 |
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SUCCESS_OLD = .FALSE. |
| 281 |
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SUCCESS_NEW = .FALSE. |
| 282 |
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| 283 |
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CALL CHISQSTT(0,JFAIL) |
| 284 |
|
c$$$ PRINT*,CHI2 |
| 285 |
|
CHI2_NEW = CHI2 |
| 286 |
|
FC = CHI2 |
| 287 |
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EC = 0. |
| 288 |
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| 289 |
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100 CONTINUE |
| 290 |
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DO I=1,5 |
| 291 |
|
AL0(I)=AL(I) |
| 292 |
|
ENDDO |
| 293 |
|
DO I=1,5 |
| 294 |
|
AL(I)=AL(I)+E*DAL(I) |
| 295 |
|
ENDDO |
| 296 |
|
CALL CHISQSTT(0,JFAIL) |
| 297 |
|
CHI2_OLD = CHI2_NEW |
| 298 |
|
CHI2_NEW = CHI2 |
| 299 |
|
FA = FB |
| 300 |
|
FB = FC |
| 301 |
|
FC = CHI2 |
| 302 |
|
EA = EB |
| 303 |
|
EB = EC |
| 304 |
|
EC = E |
| 305 |
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|
| 306 |
|
c$$$ PRINT*,E,CHI2_NEW |
| 307 |
|
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| 308 |
|
IF(CHI2_NEW.LE.CHI2_OLD) THEN ! success |
| 309 |
|
IF(DABS(CHI2_NEW-CHI2_OLD).LT.CHI2TOLL) GOTO 101 |
| 310 |
|
SUCCESS_OLD = SUCCESS_NEW |
| 311 |
|
SUCCESS_NEW = .TRUE. |
| 312 |
|
E = E*ALPHA |
| 313 |
|
ELSE ! failure |
| 314 |
|
SUCCESS_OLD = SUCCESS_NEW |
| 315 |
|
SUCCESS_NEW = .FALSE. |
| 316 |
|
CHI2_NEW = CHI2_OLD |
| 317 |
|
DO I=1,5 |
| 318 |
|
AL(I)=AL0(I) |
| 319 |
|
ENDDO |
| 320 |
|
IF(SUCCESS_OLD) THEN |
| 321 |
|
DENOM = (EB-EA)*(FB-FC) - (EB-EC)*(FB-FA) |
| 322 |
|
IF(DENOM.NE.0.) THEN |
| 323 |
|
E = EB - 0.5*( (EB-EA)**2*(FB-FC) |
| 324 |
|
$ - (EB-EC)**2*(FB-FA) ) / DENOM |
| 325 |
|
ELSE |
| 326 |
|
E = BETA*E |
| 327 |
|
ENDIF |
| 328 |
|
ELSE |
| 329 |
|
E = BETA*E |
| 330 |
|
ENDIF |
| 331 |
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c$$$ E = BETA*E |
| 332 |
|
ENDIF |
| 333 |
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GOTO 100 |
| 334 |
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| 335 |
|
101 CONTINUE |
| 336 |
|
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| 337 |
|
DO I=1,5 |
| 338 |
|
DAL(I)=E*DAL(I) |
| 339 |
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ENDDO |
| 340 |
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| 341 |
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c$$$ print*,' ' |
| 342 |
|
c$$$ PRINT*,'DAL ',(DAL(K),K=1,5) |
| 343 |
|
c$$$ PRINT*,'CHI2DOLD ',(CHI2DOLD(K),K=1,5) |
| 344 |
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c$$$ print*,'==== CHI2 ====' |
| 345 |
|
c$$$ print*,chi2 |
| 346 |
|
c$$$ print*,'==== CHI2d ====' |
| 347 |
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c$$$ print*,(chi2d(i),i=1,5) |
| 348 |
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c$$$ print*,'==== CHI2dd ====' |
| 349 |
|
c$$$ do j=1,5 |
| 350 |
|
c$$$ print*,(chi2dd(j,i),i=1,5) |
| 351 |
|
c$$$ enddo |
| 352 |
|
c$$$ print*,'================' |
| 353 |
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c$$$ print*,' ' |
| 354 |
|
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| 355 |
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*========= FIN QUI ============= |
| 356 |
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| 357 |
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ENDIF |
| 358 |
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| 359 |
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| 360 |
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| 361 |
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| 362 |
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| 363 |
|
*------------------------------------------------------------* |
| 364 |
|
* ---------------------------------------------------- * |
| 365 |
|
*------------------------------------------------------------* |
| 366 |
* check parameter bounds: |
* check parameter bounds: |
| 367 |
|
*------------------------------------------------------------* |
| 368 |
DO I=1,5 |
DO I=1,5 |
| 369 |
IF(AL(I).GT.ALMAX(I).OR.AL(I).LT.ALMIN(I))THEN |
IF(AL(I).GT.ALMAX(I).OR.AL(I).LT.ALMIN(I))THEN |
| 370 |
if(DEBUG)then |
if(TRKVERBOSE)then |
| 371 |
PRINT*,' **WARNING** ' |
PRINT*,' *** WARNING in mini *** ' |
| 372 |
PRINT*,'MINI_2 ==> AL(',I,') out of range' |
PRINT*,'MINI_2 ==> AL(',I,') out of range' |
| 373 |
PRINT*,' value: ',AL(I), |
PRINT*,' value: ',AL(I), |
| 374 |
$ ' limits: ',ALMIN(I),ALMAX(I) |
$ ' limits: ',ALMIN(I),ALMAX(I) |
| 375 |
print*,'istep ',istep |
print*,'istep ',istep |
| 376 |
endif |
endif |
| 377 |
|
IF(CHI2.EQ.0) CHI2=-9999. |
| 378 |
|
IF(CHI2.GT.0) CHI2=-CHI2 |
| 379 |
IFAIL=1 |
IFAIL=1 |
| 380 |
RETURN |
RETURN |
| 381 |
ENDIF |
ENDIF |
| 382 |
ENDDO |
ENDDO |
| 383 |
* new estimate of chi^2: |
*------------------------------------------------------------* |
|
JFAIL=0 !error flag |
|
|
CALL CHISQ(IFLAG,JFAIL) !chi^2 and its derivatives |
|
|
IF(JFAIL.NE.0) THEN |
|
|
IFAIL=1 |
|
|
if(DEBUG) |
|
|
$ PRINT *,'mini_2: ===> error on CHISQ computation !!!' |
|
|
RETURN |
|
|
ENDIF |
|
| 384 |
* check number of steps: |
* check number of steps: |
| 385 |
IF(ISTEP.gt.ISTEPMAX) then |
*------------------------------------------------------------* |
| 386 |
IFAIL=1 |
IF(ISTEP.ge.ISTEPMAX) then |
| 387 |
if(DEBUG) |
c$$$ IFAIL=1 |
| 388 |
$ PRINT *,'mini_2: WARNING ===> ISTEP.GT.ISTEPMAX=',ISTEPMAX |
c$$$ if(TRKVERBOSE) |
| 389 |
|
c$$$ $ PRINT *,'*** WARNING in mini *** ISTEP.GT.ISTEPMAX=', |
| 390 |
|
c$$$ $ ISTEPMAX |
| 391 |
goto 11 |
goto 11 |
| 392 |
endif |
endif |
| 393 |
|
*------------------------------------------------------------* |
| 394 |
* --------------------------------------------- |
* --------------------------------------------- |
| 395 |
* evaluate deflection tolerance on the basis of |
* evaluate deflection tolerance on the basis of |
| 396 |
* estimated deflection |
* estimated deflection |
| 397 |
* --------------------------------------------- |
* --------------------------------------------- |
| 398 |
ALTOL(5)=DSQRT(DELETA1**2+DELETA2**2*AL(5)**2)/FACT |
*------------------------------------------------------------* |
| 399 |
|
c$$$ ALTOL(5) = DSQRT(DELETA1**2+DELETA2**2*AL(5)**2)/FACT |
| 400 |
|
ALTOL(5) = DSQRT((DELETA1*AVRESX)**2+DELETA2**2*AL(5)**2)/FACT |
| 401 |
|
ALTOL(1) = ALTOL(5)/DELETA1 |
| 402 |
|
ALTOL(2) = ALTOL(1) |
| 403 |
|
ALTOL(3) = DSQRT(ALTOL(1)**2+ALTOL(2)**2)/44.51 |
| 404 |
|
ALTOL(4) = ALTOL(3) |
| 405 |
|
|
| 406 |
|
c$$$ print*,' -- ',(DAL(I),ALTOL(I),' - ',i=1,5) !>>>> new step! |
| 407 |
|
|
| 408 |
*---- check tolerances: |
*---- check tolerances: |
| 409 |
|
c$$$ DO I=1,5 |
| 410 |
|
c$$$ if(TRKVERBOSE)print*,i,' -- ',DAL(I),ALTOL(I) !>>>> new step! |
| 411 |
|
c$$$ ENDDO |
| 412 |
|
c$$$ print*,'chi2 -- ',DCHI2 |
| 413 |
|
|
| 414 |
|
IF(ISTEP.LT.ISTEPMIN) GOTO 10 ! ***PP*** |
| 415 |
DO I=1,5 |
DO I=1,5 |
| 416 |
IF(ABS(DAL(I)).GT.ALTOL(I))GOTO 10 !>>>> new step! |
IF(ABS(DAL(I)).GT.ALTOL(I))GOTO 10 !>>>> new step! |
| 417 |
ENDDO |
ENDDO |
| 418 |
|
|
| 419 |
|
***************************** |
| 420 |
|
* final estimate of chi^2 |
| 421 |
|
***************************** |
| 422 |
|
|
| 423 |
|
* ------------------------------- |
| 424 |
|
* **** Chi2+gaussian minimization |
| 425 |
|
* ------------------------------- |
| 426 |
|
|
| 427 |
|
IF(.NOT.STUDENT) THEN |
| 428 |
|
|
| 429 |
|
JFAIL=0 !error flag |
| 430 |
|
CALL CHISQ(IFLAG,JFAIL) !chi^2 and its derivatives |
| 431 |
|
IF(JFAIL.NE.0) THEN |
| 432 |
|
IFAIL=1 |
| 433 |
|
if(TRKVERBOSE)THEN |
| 434 |
|
CHI2=-9999. |
| 435 |
|
if(TRKVERBOSE) |
| 436 |
|
$ PRINT *,'*** ERROR in mini *** wrong CHISQ' |
| 437 |
|
ENDIF |
| 438 |
|
RETURN |
| 439 |
|
ENDIF |
| 440 |
|
c COST=1e-7 |
| 441 |
|
COST=1. |
| 442 |
|
DO I=1,5 |
| 443 |
|
IF(CHI2DD(I,I).NE.0.)COST=COST/DABS(CHI2DD(I,I))**0.2 |
| 444 |
|
ENDDO |
| 445 |
|
DO I=1,5 |
| 446 |
|
DO J=1,5 |
| 447 |
|
CHI2DD(I,J)=CHI2DD(I,J)*COST |
| 448 |
|
ENDDO |
| 449 |
|
ENDDO |
| 450 |
|
IF(PFIXED.EQ.0.) THEN |
| 451 |
|
CALL DSFACT(5,CHI2DD,5,IFA,DET,JFA) !CHI2DD matrix determinant |
| 452 |
|
IF(IFA.NE.0) THEN !not positive-defined |
| 453 |
|
if(TRKVERBOSE)then |
| 454 |
|
PRINT *, |
| 455 |
|
$ '*** ERROR in mini ***'// |
| 456 |
|
$ 'on matrix inversion (not pos-def)' |
| 457 |
|
$ ,DET |
| 458 |
|
endif |
| 459 |
|
IF(CHI2.EQ.0) CHI2=-9999. |
| 460 |
|
IF(CHI2.GT.0) CHI2=-CHI2 |
| 461 |
|
IFAIL=1 |
| 462 |
|
RETURN |
| 463 |
|
ENDIF |
| 464 |
|
CALL DSFINV(5,CHI2DD,5) !CHI2DD matrix inversion |
| 465 |
|
DO I=1,5 |
| 466 |
|
c$$$ DAL(I)=0. |
| 467 |
|
DO J=1,5 |
| 468 |
|
COV(I,J)=2.*COST*CHI2DD(I,J) |
| 469 |
|
ENDDO |
| 470 |
|
ENDDO |
| 471 |
|
ELSE |
| 472 |
|
DO I=1,4 |
| 473 |
|
CHI2D_R(I)=CHI2D(I) |
| 474 |
|
DO J=1,4 |
| 475 |
|
CHI2DD_R(I,J)=CHI2DD(I,J) |
| 476 |
|
ENDDO |
| 477 |
|
ENDDO |
| 478 |
|
CALL DSFACT(4,CHI2DD_R,4,IFA,DET,JFA) |
| 479 |
|
IF(IFA.NE.0) THEN |
| 480 |
|
if(TRKVERBOSE)then |
| 481 |
|
PRINT *, |
| 482 |
|
$ '*** ERROR in mini ***'// |
| 483 |
|
$ 'on matrix inversion (not pos-def)' |
| 484 |
|
$ ,DET |
| 485 |
|
endif |
| 486 |
|
IF(CHI2.EQ.0) CHI2=-9999. |
| 487 |
|
IF(CHI2.GT.0) CHI2=-CHI2 |
| 488 |
|
IFAIL=1 |
| 489 |
|
RETURN |
| 490 |
|
ENDIF |
| 491 |
|
CALL DSFINV(4,CHI2DD_R,4) |
| 492 |
|
DO I=1,4 |
| 493 |
|
c$$$ DAL(I)=0. |
| 494 |
|
DO J=1,4 |
| 495 |
|
COV(I,J)=2.*COST*CHI2DD_R(I,J) |
| 496 |
|
ENDDO |
| 497 |
|
ENDDO |
| 498 |
|
ENDIF |
| 499 |
|
|
| 500 |
|
ENDIF |
| 501 |
|
|
| 502 |
|
* ------------------------------- |
| 503 |
|
* **** Likelihood+student minimization |
| 504 |
|
* ------------------------------- |
| 505 |
|
|
| 506 |
|
IF(STUDENT) THEN |
| 507 |
|
CALL CHISQSTT(1,JFAIL) |
| 508 |
|
DO I=1,5 |
| 509 |
|
DO j=1,5 |
| 510 |
|
COV(I,J) = 2.*CHI2DD(I,J) |
| 511 |
|
ENDDO |
| 512 |
|
ENDDO |
| 513 |
|
ENDIF |
| 514 |
|
|
| 515 |
|
***************************** |
| 516 |
|
|
| 517 |
* ------------------------------------ |
* ------------------------------------ |
| 518 |
* Number of Degree Of Freedom |
* Number of Degree Of Freedom |
| 522 |
$ +int(xgood(ip)) |
$ +int(xgood(ip)) |
| 523 |
$ +int(ygood(ip)) |
$ +int(ygood(ip)) |
| 524 |
enddo |
enddo |
| 525 |
ndof=ndof-5 |
if(pfixed.eq.0.) ndof=ndof-5 ! ***PP*** |
| 526 |
|
if(pfixed.ne.0.) ndof=ndof-4 ! ***PP*** |
| 527 |
|
if(ndof.le.0.) then |
| 528 |
|
ndof = 1 |
| 529 |
|
if(TRKVERBOSE) |
| 530 |
|
$ print*,'*** WARNING *** in mini n.dof = 0 (set to 1)' |
| 531 |
|
endif |
| 532 |
|
|
| 533 |
* ------------------------------------ |
* ------------------------------------ |
| 534 |
* Reduced chi^2 |
* Reduced chi^2 |
| 535 |
CHI2 = CHI2/dble(ndof) |
CHI2 = CHI2/dble(ndof) |
| 536 |
|
|
| 537 |
|
c print*,'mini2: chi2 ',chi2 |
| 538 |
|
|
| 539 |
11 CONTINUE |
11 CONTINUE |
| 540 |
|
|
| 541 |
101 CONTINUE |
if(TRKDEBUG) print*,'mini2: -ok- ',istep,chi2,1./AL(5) |
| 542 |
|
|
| 543 |
c print*,'END MINI' |
NSTEP=ISTEP ! ***PP*** |
| 544 |
|
|
| 545 |
|
c$$$ print*,'>>>>> NSTEP = ',NSTEP |
| 546 |
|
|
| 547 |
RETURN |
RETURN |
| 548 |
END |
END |
| 569 |
DIMENSION XV2(nplanes),YV2(nplanes),XV1(nplanes),YV1(nplanes) |
DIMENSION XV2(nplanes),YV2(nplanes),XV1(nplanes),YV1(nplanes) |
| 570 |
$ ,XV0(nplanes),YV0(nplanes) |
$ ,XV0(nplanes),YV0(nplanes) |
| 571 |
DIMENSION AL_P(5) |
DIMENSION AL_P(5) |
| 572 |
|
|
| 573 |
|
c LOGICAL TRKVERBOSE |
| 574 |
|
c COMMON/TRKD/TRKVERBOSE |
| 575 |
|
LOGICAL TRKDEBUG,TRKVERBOSE |
| 576 |
|
COMMON/TRKD/TRKDEBUG,TRKVERBOSE |
| 577 |
* |
* |
| 578 |
* chi^2 computation |
* chi^2 computation |
| 579 |
* |
* |
| 583 |
JFAIL=0 !error flag |
JFAIL=0 !error flag |
| 584 |
CALL POSXYZ(AL_P,JFAIL) !track intersection with tracking planes |
CALL POSXYZ(AL_P,JFAIL) !track intersection with tracking planes |
| 585 |
IF(JFAIL.NE.0) THEN |
IF(JFAIL.NE.0) THEN |
| 586 |
PRINT *,'CHISQ ==> error from tracking routine POSXYZ !!' |
IF(TRKVERBOSE) |
| 587 |
|
$ PRINT *,'CHISQ ==> error from trk routine POSXYZ !!' |
| 588 |
IFAIL=1 |
IFAIL=1 |
| 589 |
RETURN |
RETURN |
| 590 |
ENDIF |
ENDIF |
| 609 |
* measured position of the cluster. |
* measured position of the cluster. |
| 610 |
* --------------------------------------------------------- |
* --------------------------------------------------------- |
| 611 |
CHI2=0. |
CHI2=0. |
| 612 |
DO I=1,nplanes |
DO I=1,nplanes |
| 613 |
IF(XGOOD(I).EQ.1.AND.YGOOD(I).EQ.0)THEN !X-cl |
IF(XGOOD(I).EQ.1.AND.YGOOD(I).EQ.0)THEN !X-cl |
| 614 |
BETA = (XM_B(I)-XM_A(I))/(YM_B(I)-YM_A(I)) |
BETA = (XM_B(I)-XM_A(I))/(YM_B(I)-YM_A(I)) |
| 615 |
ALFA = XM_A(I) - BETA * YM_A(I) |
ALFA = XM_A(I) - BETA * YM_A(I) |
| 636 |
+ *( XGOOD(I)*(1-YGOOD(I)) ) |
+ *( XGOOD(I)*(1-YGOOD(I)) ) |
| 637 |
+ +((XV(I)-XM(I))**2+(YV(I)-YM(I))**2)/RESY(i)**2 |
+ +((XV(I)-XM(I))**2+(YV(I)-YM(I))**2)/RESY(i)**2 |
| 638 |
+ *( (1-XGOOD(I))*YGOOD(I) ) |
+ *( (1-XGOOD(I))*YGOOD(I) ) |
| 639 |
|
c$$$ print*,(XV(I)-XM(I))**2/RESX(i)**2 *( XGOOD(I)*YGOOD(I) ) |
| 640 |
|
c$$$ print*,(YV(I)-YM(I))**2/RESY(i)**2 *( YGOOD(I)*XGOOD(I) ) |
| 641 |
|
c$$$ print*,((XV(I)-XM(I))**2+(YV(I)-YM(I))**2)/RESX(i)**2 |
| 642 |
|
c$$$ + *( XGOOD(I)*(1-YGOOD(I)) ) |
| 643 |
|
c$$$ print*,((XV(I)-XM(I))**2+(YV(I)-YM(I))**2)/RESY(i)**2 |
| 644 |
|
c$$$ + *( (1-XGOOD(I))*YGOOD(I) ) |
| 645 |
|
c$$$ print*,XV(I),XM(I),XGOOD(I) |
| 646 |
|
c$$$ print*,YV(I),YM(I),YGOOD(I) |
| 647 |
ENDDO |
ENDDO |
| 648 |
|
c$$$ print*,'CHISQ ',chi2 |
| 649 |
* ------------------------------------------------ |
* ------------------------------------------------ |
| 650 |
* |
* |
| 651 |
* calculation of derivatives (dX/dAL_fa and dY/dAL_fa) |
* calculation of derivatives (dX/dAL_fa and dY/dAL_fa) |
| 664 |
JFAIL=0 |
JFAIL=0 |
| 665 |
CALL POSXYZ(AL_P,JFAIL) |
CALL POSXYZ(AL_P,JFAIL) |
| 666 |
IF(JFAIL.NE.0) THEN |
IF(JFAIL.NE.0) THEN |
| 667 |
PRINT *,'CHISQ ==> error from tracking routine POSXYZ !!' |
IF(TRKVERBOSE) |
| 668 |
|
*23456789012345678901234567890123456789012345678901234567890123456789012 |
| 669 |
|
$ PRINT *,'CHISQ ==> error from trk routine POSXYZ' |
| 670 |
IFAIL=1 |
IFAIL=1 |
| 671 |
RETURN |
RETURN |
| 672 |
ENDIF |
ENDIF |
| 678 |
JFAIL=0 |
JFAIL=0 |
| 679 |
CALL POSXYZ(AL_P,JFAIL) |
CALL POSXYZ(AL_P,JFAIL) |
| 680 |
IF(JFAIL.NE.0) THEN |
IF(JFAIL.NE.0) THEN |
| 681 |
PRINT *,'CHISQ ==> error from tracking routine POSXYZ !!' |
IF(TRKVERBOSE) |
| 682 |
|
$ PRINT *,'CHISQ ==> error from trk routine POSXYZ' |
| 683 |
IFAIL=1 |
IFAIL=1 |
| 684 |
RETURN |
RETURN |
| 685 |
ENDIF |
ENDIF |
| 710 |
|
|
| 711 |
COSTHE=DSQRT(1.-AL(3)**2) |
COSTHE=DSQRT(1.-AL(3)**2) |
| 712 |
IF(COSTHE.EQ.0.) THEN |
IF(COSTHE.EQ.0.) THEN |
| 713 |
PRINT *,'=== WARNING ===> COSTHE=0' |
IF(TRKVERBOSE)PRINT *,'=== WARNING ===> COSTHE=0' |
| 714 |
STOP |
IFAIL=1 |
| 715 |
|
RETURN |
| 716 |
ENDIF |
ENDIF |
| 717 |
|
|
| 718 |
DXDAL(I,3)=(ZINI-ZM(I))*DCOS(AL(4))/COSTHE**3 |
DXDAL(I,3)=(ZINI-ZM(I))*DCOS(AL(4))/COSTHE**3 |
| 765 |
RETURN |
RETURN |
| 766 |
END |
END |
| 767 |
|
|
| 768 |
|
****************************************************************************** |
| 769 |
|
* |
| 770 |
|
* routine to compute Likelihodd+Student and its derivatives |
| 771 |
|
* |
| 772 |
|
* (modified in respect to the previous one in order to include |
| 773 |
|
* single clusters. In this case the residual is evaluated by |
| 774 |
|
* calculating the distance between the track intersection and the |
| 775 |
|
* segment AB associated to the single cluster) |
| 776 |
|
* |
| 777 |
|
****************************************************************************** |
| 778 |
|
|
| 779 |
|
SUBROUTINE CHISQSTT(IFLAG,JFAIL) |
| 780 |
|
|
| 781 |
|
IMPLICIT DOUBLE PRECISION (A-H,O-Z) |
| 782 |
|
|
| 783 |
|
include 'commontracker.f' !tracker general common |
| 784 |
|
include 'common_mini_2.f' !common for the tracking procedure |
| 785 |
|
|
| 786 |
|
LOGICAL TRKDEBUG,TRKVERBOSE |
| 787 |
|
COMMON/TRKD/TRKDEBUG,TRKVERBOSE |
| 788 |
|
|
| 789 |
|
DIMENSION AL_P(5) |
| 790 |
|
DIMENSION VECTEMP(5) |
| 791 |
|
c$$$ DIMENSION U(5) ! BFGS |
| 792 |
|
|
| 793 |
|
DO I=1,5 |
| 794 |
|
AL_P(I)=AL(I) |
| 795 |
|
ENDDO |
| 796 |
|
JFAIL=0 !error flag |
| 797 |
|
CALL POSXYZ(AL_P,JFAIL) !track intersection with tracking planes |
| 798 |
|
IF(JFAIL.NE.0) THEN |
| 799 |
|
IF(TRKVERBOSE) |
| 800 |
|
$ PRINT *,'CHISQSTT ==> error from trk routine POSXYZ !!' |
| 801 |
|
IFAIL=1 |
| 802 |
|
RETURN |
| 803 |
|
ENDIF |
| 804 |
|
|
| 805 |
|
DO I=1,nplanes |
| 806 |
|
DXDAL(I,1)=1. |
| 807 |
|
DYDAL(I,1)=0. |
| 808 |
|
DXDAL(I,2)=0. |
| 809 |
|
DYDAL(I,2)=1. |
| 810 |
|
COSTHE=DSQRT(1.-AL(3)**2) |
| 811 |
|
IF(COSTHE.EQ.0.) THEN |
| 812 |
|
IF(TRKVERBOSE)PRINT *,'=== WARNING ===> COSTHE=0' |
| 813 |
|
IFAIL=1 |
| 814 |
|
RETURN |
| 815 |
|
ENDIF |
| 816 |
|
DXDAL(I,3)=(ZINI-ZM(I))*DCOS(AL(4))/COSTHE**3 |
| 817 |
|
DYDAL(I,3)=(ZINI-ZM(I))*DSIN(AL(4))/COSTHE**3 |
| 818 |
|
DXDAL(I,4)=-AL(3)*(ZINI-ZM(I))*DSIN(AL(4))/COSTHE |
| 819 |
|
DYDAL(I,4)=AL(3)*(ZINI-ZM(I))*DCOS(AL(4))/COSTHE |
| 820 |
|
IF(AL(5).NE.0.) THEN |
| 821 |
|
DXDAL(I,5)= |
| 822 |
|
+ (XV(I)-(AL(1)+AL(3)/COSTHE*(ZINI-ZM(I)) |
| 823 |
|
+ *DCOS(AL(4))))/AL(5) |
| 824 |
|
DYDAL(I,5)= |
| 825 |
|
+ (YV(I)-(AL(2)+AL(3)/COSTHE*(ZINI-ZM(I)) |
| 826 |
|
+ *DSIN(AL(4))))/AL(5) |
| 827 |
|
ELSE |
| 828 |
|
DXDAL(I,5)=100.*( 0.25 *0.3*0.4*(0.01*(ZINI-ZM(I)))**2 ) |
| 829 |
|
DYDAL(I,5)=0. |
| 830 |
|
ENDIF |
| 831 |
|
ENDDO |
| 832 |
|
|
| 833 |
|
IF(IFLAG.EQ.0) THEN ! function calulation |
| 834 |
|
CHI2=0. |
| 835 |
|
DO I=1,nplanes |
| 836 |
|
IF(XGOOD(I).EQ.1.AND.YGOOD(I).EQ.0)THEN !X-cl |
| 837 |
|
BETA = (XM_B(I)-XM_A(I))/(YM_B(I)-YM_A(I)) |
| 838 |
|
ALFA = XM_A(I) - BETA * YM_A(I) |
| 839 |
|
YM(I) = ( YV(I) + BETA*XV(I) - BETA*ALFA )/(1+BETA**2) |
| 840 |
|
if(YM(I).lt.dmin1(YM_A(I),YM_B(I))) |
| 841 |
|
$ YM(I)=dmin1(YM_A(I),YM_B(I)) |
| 842 |
|
if(YM(I).gt.dmax1(YM_A(I),YM_B(I))) |
| 843 |
|
$ YM(I)=dmax1(YM_A(I),YM_B(I)) |
| 844 |
|
XM(I) = ALFA + BETA * YM(I) !<<<< measured coordinates |
| 845 |
|
ELSEIF(XGOOD(I).EQ.0.AND.YGOOD(I).EQ.1)THEN !Y-cl |
| 846 |
|
BETA = (YM_B(I)-YM_A(I))/(XM_B(I)-XM_A(I)) |
| 847 |
|
ALFA = YM_A(I) - BETA * XM_A(I) |
| 848 |
|
XM(I) = ( XV(I) + BETA*YV(I) - BETA*ALFA )/(1+BETA**2) |
| 849 |
|
if(XM(I).lt.dmin1(XM_A(I),XM_B(I))) |
| 850 |
|
$ XM(I)=dmin1(XM_A(I),XM_B(I)) |
| 851 |
|
if(XM(I).gt.dmax1(XM_A(I),XM_B(I))) |
| 852 |
|
$ XM(I)=dmax1(XM_A(I),XM_B(I)) |
| 853 |
|
YM(I) = ALFA + BETA * XM(I) !<<<< measured coordinates |
| 854 |
|
ENDIF |
| 855 |
|
TERMX = DLOG( (TAILX(I)*RESX(I)**2+(XV(I)-XM(I))**2)/ |
| 856 |
|
$ (TAILX(I)*RESX(I)**2) ) |
| 857 |
|
TERMY = DLOG( (TAILY(I)*RESY(I)**2+(YV(I)-YM(I))**2)/ |
| 858 |
|
$ (TAILY(I)*RESY(I)**2) ) |
| 859 |
|
CHI2=CHI2 |
| 860 |
|
$ +(TAILX(I)+1.0)*TERMX *( XGOOD(I) ) |
| 861 |
|
$ +(TAILY(I)+1.0)*TERMY *( YGOOD(I) ) |
| 862 |
|
ENDDO |
| 863 |
|
ENDIF |
| 864 |
|
|
| 865 |
|
IF(IFLAG.EQ.1) THEN ! derivative calulation |
| 866 |
|
DO I=1,5 |
| 867 |
|
CHI2DOLD(I)=CHI2D(I) |
| 868 |
|
ENDDO |
| 869 |
|
DO J=1,5 |
| 870 |
|
CHI2D(J)=0. |
| 871 |
|
DO I=1,nplanes |
| 872 |
|
CHI2D(J)=CHI2D(J) |
| 873 |
|
$ +2.*(TAILX(I)+1.0)*(XV(I)-XM(I))/ |
| 874 |
|
$ (TAILX(I)*RESX(I)**2+(XV(I)-XM(I))**2)* |
| 875 |
|
$ DXDAL(I,J) *XGOOD(I) |
| 876 |
|
$ +2.*(TAILY(I)+1.0)*(YV(I)-YM(I))/ |
| 877 |
|
$ (TAILY(I)*RESY(I)**2+(YV(I)-YM(I))**2)* |
| 878 |
|
$ DYDAL(I,J) *YGOOD(I) |
| 879 |
|
ENDDO |
| 880 |
|
ENDDO |
| 881 |
|
DO K=1,5 |
| 882 |
|
VECTEMP(K)=0. |
| 883 |
|
DO M=1,5 |
| 884 |
|
VECTEMP(K) = VECTEMP(K) + |
| 885 |
|
$ COV(K,M)/2.*(CHI2D(M)-CHI2DOLD(M)) |
| 886 |
|
ENDDO |
| 887 |
|
ENDDO |
| 888 |
|
DOWN1 = 0. |
| 889 |
|
DO K=1,5 |
| 890 |
|
DOWN1 = DOWN1 + DAL(K)*(CHI2D(K)-CHI2DOLD(K)) |
| 891 |
|
ENDDO |
| 892 |
|
IF(DOWN1.EQ.0.) THEN |
| 893 |
|
PRINT*,'WARNING IN MATRIX CALULATION (STUDENT), DOWN1 = 0' |
| 894 |
|
IFAIL=1 |
| 895 |
|
RETURN |
| 896 |
|
ENDIF |
| 897 |
|
DOWN2 = 0. |
| 898 |
|
DO K=1,5 |
| 899 |
|
DO M=1,5 |
| 900 |
|
DOWN2 = DOWN2 + (CHI2D(K)-CHI2DOLD(K))*VECTEMP(K) |
| 901 |
|
ENDDO |
| 902 |
|
ENDDO |
| 903 |
|
IF(DOWN2.EQ.0.) THEN |
| 904 |
|
PRINT*,'WARNING IN MATRIX CALULATION (STUDENT), DOWN2 = 0' |
| 905 |
|
IFAIL=1 |
| 906 |
|
RETURN |
| 907 |
|
ENDIF |
| 908 |
|
c$$$ DO K=1,5 ! BFGS |
| 909 |
|
c$$$ U(K) = DAL(K)/DOWN1 - VECTEMP(K)/DOWN2 |
| 910 |
|
c$$$ ENDDO |
| 911 |
|
DO I=1,5 |
| 912 |
|
DO J=1,5 |
| 913 |
|
CHI2DD(I,J) = COV(I,J)/2. |
| 914 |
|
$ +DAL(I)*DAL(J)/DOWN1 |
| 915 |
|
$ -VECTEMP(I)*VECTEMP(J)/DOWN2 |
| 916 |
|
c$$$ $ +DOWN2*U(I)*U(J) ! BFGS |
| 917 |
|
ENDDO |
| 918 |
|
ENDDO |
| 919 |
|
ENDIF |
| 920 |
|
|
| 921 |
|
RETURN |
| 922 |
|
END |
| 923 |
|
|
| 924 |
***************************************************************** |
***************************************************************** |
| 925 |
* |
* |
| 926 |
* Routine to compute the track intersection points |
* Routine to compute the track intersection points |
| 951 |
|
|
| 952 |
include 'commontracker.f' !tracker general common |
include 'commontracker.f' !tracker general common |
| 953 |
include 'common_mini_2.f' !common for the tracking procedure |
include 'common_mini_2.f' !common for the tracking procedure |
| 954 |
|
|
| 955 |
|
c LOGICAL TRKVERBOSE |
| 956 |
|
c COMMON/TRKD/TRKVERBOSE |
| 957 |
|
LOGICAL TRKDEBUG,TRKVERBOSE |
| 958 |
|
COMMON/TRKD/TRKDEBUG,TRKVERBOSE |
| 959 |
c |
c |
| 960 |
DIMENSION AL_P(5) |
DIMENSION AL_P(5) |
| 961 |
* |
* |
| 962 |
DO I=1,nplanes |
cpp DO I=1,nplanes |
| 963 |
ZV(I)=ZM(I) ! |
cpp ZV(I)=ZM(I) ! |
| 964 |
ENDDO |
cpp ENDDO |
| 965 |
* |
* |
| 966 |
* set parameters for GRKUTA |
* set parameters for GRKUTA |
| 967 |
* |
* |
| 975 |
VOUT(6)=-1.*DSQRT(1.-AL_P(3)**2) |
VOUT(6)=-1.*DSQRT(1.-AL_P(3)**2) |
| 976 |
IF(AL_P(5).NE.0.) VOUT(7)=DABS(1./AL_P(5)) |
IF(AL_P(5).NE.0.) VOUT(7)=DABS(1./AL_P(5)) |
| 977 |
IF(AL_P(5).EQ.0.) VOUT(7)=1.E8 |
IF(AL_P(5).EQ.0.) VOUT(7)=1.E8 |
| 978 |
|
|
| 979 |
|
c$$$ print*,'POSXY (prima) ',vout |
| 980 |
|
|
| 981 |
DO I=1,nplanes |
DO I=1,nplanes |
| 982 |
step=vout(3)-zv(i) |
cpp step=vout(3)-zv(i) |
| 983 |
|
step=vout(3)-zm(i) |
| 984 |
10 DO J=1,7 |
10 DO J=1,7 |
| 985 |
VECT(J)=VOUT(J) |
VECT(J)=VOUT(J) |
| 986 |
VECTINI(J)=VOUT(J) |
VECTINI(J)=VOUT(J) |
| 989 |
CALL GRKUTA(CHARGE,STEP,VECT,VOUT) |
CALL GRKUTA(CHARGE,STEP,VECT,VOUT) |
| 990 |
IF(VOUT(3).GT.VECT(3)) THEN |
IF(VOUT(3).GT.VECT(3)) THEN |
| 991 |
IFAIL=1 |
IFAIL=1 |
| 992 |
PRINT *,'posxy (grkuta): WARNING ===> backward track!!' |
if(TRKVERBOSE) |
| 993 |
print*,'charge',charge |
$ PRINT *,'posxy (grkuta): WARNING ===> backward track!!' |
| 994 |
print*,'vect',vect |
c$$$ if(.TRUE.)print*,'charge',charge |
| 995 |
print*,'vout',vout |
c$$$ if(.TRUE.)print*,'vect',vect |
| 996 |
print*,'step',step |
c$$$ if(.TRUE.)print*,'vout',vout |
| 997 |
|
c$$$ if(.TRUE.)print*,'step',step |
| 998 |
|
if(TRKVERBOSE)print*,'charge',charge |
| 999 |
|
if(TRKVERBOSE)print*,'vect',vect |
| 1000 |
|
if(TRKVERBOSE)print*,'vout',vout |
| 1001 |
|
if(TRKVERBOSE)print*,'step',step |
| 1002 |
RETURN |
RETURN |
| 1003 |
ENDIF |
ENDIF |
| 1004 |
Z=VOUT(3) |
Z=VOUT(3) |
| 1012 |
GOTO 11 |
GOTO 11 |
| 1013 |
ENDIF |
ENDIF |
| 1014 |
|
|
| 1015 |
|
|
| 1016 |
* ----------------------------------------------- |
* ----------------------------------------------- |
| 1017 |
* evaluate track coordinates |
* evaluate track coordinates |
| 1018 |
100 XV(I)=VOUT(1) |
100 XV(I)=VOUT(1) |
| 1022 |
AYV(I)=DATAN(VOUT(5)/VOUT(6))*180./ACOS(-1.) |
AYV(I)=DATAN(VOUT(5)/VOUT(6))*180./ACOS(-1.) |
| 1023 |
* ----------------------------------------------- |
* ----------------------------------------------- |
| 1024 |
|
|
| 1025 |
|
IF(TRACKMODE.EQ.1) THEN |
| 1026 |
|
* ----------------------------------------------- |
| 1027 |
|
* change of energy by bremsstrahlung for electrons |
| 1028 |
|
VOUT(7) = VOUT(7) * 0.997 !0.9968 |
| 1029 |
|
* ----------------------------------------------- |
| 1030 |
|
ENDIF |
| 1031 |
|
|
| 1032 |
ENDDO |
ENDDO |
| 1033 |
|
|
| 1034 |
|
c$$$ print*,'POSXY (dopo) ',vout |
| 1035 |
|
|
| 1036 |
|
|
| 1037 |
RETURN |
RETURN |
| 1038 |
END |
END |
| 1039 |
|
|
| 1074 |
RESY(IP) = 1000. !12.d-4 |
RESY(IP) = 1000. !12.d-4 |
| 1075 |
XGOOD(IP) = 0 |
XGOOD(IP) = 0 |
| 1076 |
YGOOD(IP) = 0 |
YGOOD(IP) = 0 |
| 1077 |
|
DEDXTRK_X(IP) = 0 |
| 1078 |
|
DEDXTRK_Y(IP) = 0 |
| 1079 |
|
AXV(IP) = 0 |
| 1080 |
|
AYV(IP) = 0 |
| 1081 |
|
XV(IP) = -100 |
| 1082 |
|
YV(IP) = -100 |
| 1083 |
enddo |
enddo |
| 1084 |
|
|
| 1085 |
return |
return |
| 1086 |
end |
end |
| 1087 |
|
|
| 1088 |
|
|
| 1089 |
|
*************************************************** |
| 1090 |
|
* * |
| 1091 |
|
* * |
| 1092 |
|
* * |
| 1093 |
|
* * |
| 1094 |
|
* * |
| 1095 |
|
* * |
| 1096 |
|
************************************************** |
| 1097 |
|
|
| 1098 |
|
subroutine guess() |
| 1099 |
|
|
| 1100 |
|
c IMPLICIT DOUBLE PRECISION (A-H,O-Z) |
| 1101 |
|
|
| 1102 |
|
include 'commontracker.f' !tracker general common |
| 1103 |
|
include 'common_mini_2.f' !common for the tracking procedure |
| 1104 |
|
|
| 1105 |
|
REAL*4 XP(NPLANES),ZP(NPLANES),AP(NPLANES),RP(NPLANES) |
| 1106 |
|
REAL*4 CHI,XC,ZC,RADIUS |
| 1107 |
|
* ---------------------------------------- |
| 1108 |
|
* Y view |
| 1109 |
|
* ---------------------------------------- |
| 1110 |
|
* ---------------------------------------- |
| 1111 |
|
* initial guess with a straigth line |
| 1112 |
|
* ---------------------------------------- |
| 1113 |
|
SZZ=0. |
| 1114 |
|
SZY=0. |
| 1115 |
|
SSY=0. |
| 1116 |
|
SZ=0. |
| 1117 |
|
S1=0. |
| 1118 |
|
DO I=1,nplanes |
| 1119 |
|
IF(YGOOD(I).EQ.1)THEN |
| 1120 |
|
YY = YM(I) |
| 1121 |
|
IF(XGOOD(I).EQ.0)THEN |
| 1122 |
|
YY = (YM_A(I) + YM_B(I))/2 |
| 1123 |
|
ENDIF |
| 1124 |
|
SZZ=SZZ+ZM(I)*ZM(I) |
| 1125 |
|
SZY=SZY+ZM(I)*YY |
| 1126 |
|
SSY=SSY+YY |
| 1127 |
|
SZ=SZ+ZM(I) |
| 1128 |
|
S1=S1+1. |
| 1129 |
|
ENDIF |
| 1130 |
|
ENDDO |
| 1131 |
|
DET=SZZ*S1-SZ*SZ |
| 1132 |
|
AY=(SZY*S1-SZ*SSY)/DET |
| 1133 |
|
BY=(SZZ*SSY-SZY*SZ)/DET |
| 1134 |
|
Y0 = AY*ZINI+BY |
| 1135 |
|
* ---------------------------------------- |
| 1136 |
|
* X view |
| 1137 |
|
* ---------------------------------------- |
| 1138 |
|
* ---------------------------------------- |
| 1139 |
|
* 1) initial guess with a circle |
| 1140 |
|
* ---------------------------------------- |
| 1141 |
|
NP=0 |
| 1142 |
|
DO I=1,nplanes |
| 1143 |
|
IF(XGOOD(I).EQ.1)THEN |
| 1144 |
|
XX = XM(I) |
| 1145 |
|
IF(YGOOD(I).EQ.0)THEN |
| 1146 |
|
XX = (XM_A(I) + XM_B(I))/2 |
| 1147 |
|
ENDIF |
| 1148 |
|
NP=NP+1 |
| 1149 |
|
XP(NP)=XX |
| 1150 |
|
ZP(NP)=ZM(I) |
| 1151 |
|
ENDIF |
| 1152 |
|
ENDDO |
| 1153 |
|
IFLAG=0 !no debug mode |
| 1154 |
|
CALL TRICIRCLE(NP,XP,ZP,AP,RP,CHI,XC,ZC,RADIUS,IFLAG) |
| 1155 |
|
|
| 1156 |
|
c$$$ print*,' circle: ',XC,ZC,RADIUS,' --- ',CHI,IFLAG |
| 1157 |
|
c$$$ print*,' XP ',(xp(i),i=1,np) |
| 1158 |
|
c$$$ print*,' ZP ',(zp(i),i=1,np) |
| 1159 |
|
c$$$ print*,' AP ',(ap(i),i=1,np) |
| 1160 |
|
c$$$ print*,' XP ',(rp(i),i=1,np) |
| 1161 |
|
|
| 1162 |
|
IF(IFLAG.NE.0)GOTO 10 !straigth fit |
| 1163 |
|
c if(CHI.gt.100)GOTO 10 !straigth fit |
| 1164 |
|
ARG = RADIUS**2-(ZINI-ZC)**2 |
| 1165 |
|
IF(ARG.LT.0)GOTO 10 !straigth fit |
| 1166 |
|
DC = SQRT(ARG) |
| 1167 |
|
IF(XC.GT.0)DC=-DC |
| 1168 |
|
X0=XC+DC |
| 1169 |
|
AX = -(ZINI-ZC)/DC |
| 1170 |
|
DEF=100./(RADIUS*0.3*0.43) |
| 1171 |
|
IF(XC.GT.0)DEF=-DEF |
| 1172 |
|
|
| 1173 |
|
|
| 1174 |
|
|
| 1175 |
|
IF(ABS(X0).GT.30)THEN |
| 1176 |
|
c$$$ PRINT*,'STRANGE GUESS: XC,ZC,R ',XC,ZC,RADIUS |
| 1177 |
|
c$$$ $ ,' - CHI ',CHI,' - X0,AX,DEF ',X0,AX,DEF |
| 1178 |
|
GOTO 10 !straigth fit |
| 1179 |
|
ENDIF |
| 1180 |
|
GOTO 20 !guess is ok |
| 1181 |
|
|
| 1182 |
|
* ---------------------------------------- |
| 1183 |
|
* 2) initial guess with a straigth line |
| 1184 |
|
* - if circle does not intersect reference plane |
| 1185 |
|
* - if bad chi**2 |
| 1186 |
|
* ---------------------------------------- |
| 1187 |
|
10 CONTINUE |
| 1188 |
|
SZZ=0. |
| 1189 |
|
SZX=0. |
| 1190 |
|
SSX=0. |
| 1191 |
|
SZ=0. |
| 1192 |
|
S1=0. |
| 1193 |
|
DO I=1,nplanes |
| 1194 |
|
IF(XGOOD(I).EQ.1)THEN |
| 1195 |
|
XX = XM(I) |
| 1196 |
|
IF(YGOOD(I).EQ.0)THEN |
| 1197 |
|
XX = (XM_A(I) + XM_B(I))/2 |
| 1198 |
|
ENDIF |
| 1199 |
|
SZZ=SZZ+ZM(I)*ZM(I) |
| 1200 |
|
SZX=SZX+ZM(I)*XX |
| 1201 |
|
SSX=SSX+XX |
| 1202 |
|
SZ=SZ+ZM(I) |
| 1203 |
|
S1=S1+1. |
| 1204 |
|
ENDIF |
| 1205 |
|
ENDDO |
| 1206 |
|
DET=SZZ*S1-SZ*SZ |
| 1207 |
|
AX=(SZX*S1-SZ*SSX)/DET |
| 1208 |
|
BX=(SZZ*SSX-SZX*SZ)/DET |
| 1209 |
|
DEF = 0 |
| 1210 |
|
X0 = AX*ZINI+BX |
| 1211 |
|
|
| 1212 |
|
20 CONTINUE |
| 1213 |
|
* ---------------------------------------- |
| 1214 |
|
* guess |
| 1215 |
|
* ---------------------------------------- |
| 1216 |
|
|
| 1217 |
|
AL(1) = X0 |
| 1218 |
|
AL(2) = Y0 |
| 1219 |
|
tath = sqrt(AY**2+AX**2) |
| 1220 |
|
AL(3) = tath/sqrt(1+tath**2) |
| 1221 |
|
c$$$ IF(AX.NE.0)THEN |
| 1222 |
|
c$$$ AL(4)= atan(AY/AX) |
| 1223 |
|
c$$$ ELSE |
| 1224 |
|
c$$$ AL(4) = acos(-1.)/2 |
| 1225 |
|
c$$$ IF(AY.LT.0)AL(4) = AL(4)+acos(-1.) |
| 1226 |
|
c$$$ ENDIF |
| 1227 |
|
c$$$ IF(AX.LT.0)AL(4)= acos(-1.)+ AL(4) |
| 1228 |
|
c$$$ AL(4) = -acos(-1.) + AL(4) !from incidence direction to tracking ref.sys. |
| 1229 |
|
|
| 1230 |
|
c$$$ AL(4) = 0. |
| 1231 |
|
c$$$ IF(AX.NE.0.AND.AY.NE.0)THEN |
| 1232 |
|
c$$$ AL(4)= atan(AY/AX) |
| 1233 |
|
c$$$ ELSEIF(AY.EQ.0)THEN |
| 1234 |
|
c$$$ AL(4) = 0. |
| 1235 |
|
c$$$ IF(AX.LT.0)AL(4) = AL(4)+acos(-1.) |
| 1236 |
|
c$$$ ELSEIF(AX.EQ.0)THEN |
| 1237 |
|
c$$$ AL(4) = acos(-1.)/2 |
| 1238 |
|
c$$$ IF(AY.LT.0)AL(4) = AL(4)+acos(-1.) |
| 1239 |
|
c$$$ ENDIF |
| 1240 |
|
c$$$ IF(AX.LT.0)AL(4)= acos(-1.)+ AL(4) |
| 1241 |
|
c$$$ AL(4) = -acos(-1.) + AL(4) !from incidence direction to tracking ref.sys. |
| 1242 |
|
|
| 1243 |
|
c$$$ AL(4)=0. |
| 1244 |
|
c$$$ IF( AX.NE.0.OR.AY.NE.0. ) THEN |
| 1245 |
|
c$$$ AL(4) = ASIN(AY/SQRT(AX**2+AY**2)) |
| 1246 |
|
c$$$ IF(AX.LT.0.) AL(4) = ACOS(-1.0)-AL(4) |
| 1247 |
|
c$$$ ENDIF |
| 1248 |
|
|
| 1249 |
|
AL(4)=0. |
| 1250 |
|
IF( AX.NE.0.OR.AY.NE.0. ) THEN |
| 1251 |
|
AL(4) = ASIN(AY/SQRT(AX**2+AY**2)) |
| 1252 |
|
IF(AX.LT.0.AND.AY.GE.0) AL(4) = ACOS(-1.0)-AL(4) |
| 1253 |
|
IF(AX.LT.0.AND.AY.LT.0) AL(4) = -ACOS(-1.0)-AL(4) |
| 1254 |
|
ENDIF |
| 1255 |
|
IF(AY.GT.0.) AL(4) = AL(4)-ACOS(-1.0) |
| 1256 |
|
IF(AY.LE.0.) AL(4) = AL(4)+ACOS(-1.0) |
| 1257 |
|
|
| 1258 |
|
AL(5) = DEF |
| 1259 |
|
|
| 1260 |
|
c print*,' guess: ',(al(i),i=1,5) |
| 1261 |
|
|
| 1262 |
|
end |
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