*-- Author : S.Burke
SUBROUTINE FFHUNT(JDIGP,JDIGR,JMAX)
**********************************************************************
* *
* Hunt for the best candidate for the 'true' track, given a list *
* of digis. *
* *
* JDIGP and JDIGR are pointers to the first digis on the track. *
* JMAX is returned as the STR index of the 'true' track. *
* *
* Note that the FRPX, FRRX, FPUX and FRUX banks are assumed to have *
* been copied to work banks, with pointers in /FFWBI/. *
* *
**********************************************************************
DIMENSION ITRUE(2,1000)
*KEEP,FKNPL.
CHARACTER*5 CKDBG
PARAMETER (CKDBG='FKDBG')
PARAMETER (NPL=72)
LOGICAL LTRUE,LFIRST,LTRPL,LTRPLD
DOUBLE PRECISION TRUE,RTRUE,CHITRU,SPRO,CPRO,SFIL,CFIL
&, SSMT,CSMT,SSMTR,CSMTR,DPRO,CBPRO,QPRO,QGAIN
&, RPRO,CRPRO,RFIL,CRFIL,RSMT,CRSMT,CHIFIL,CHISMT
*
* Per-track values can go in H1WORK; note that LTRUE and LFIRST must
* be set at least per event.
*
* This is about 36k words long; the remaining common blocks are
* about 3.6k in total. Some of this could be in /H1WORK/, but the
* blocks would have to be reorganised.
*
COMMON /H1WORK/
* /FKPROJ/
& SPRO(5,NPL),CPRO(5,5,NPL)
* /FKFILT/
&, SFIL(5,NPL),CFIL(5,5,NPL)
* /FKSMTH/
&, SSMT(5,NPL),CSMT(5,5,NPL)
&, SSMTR(5,NPL),CSMTR(5,5,NPL)
* /FKINT/
&, DPRO(5,5,NPL),CBPRO(5,5,NPL),QPRO(5,5,NPL)
&, QGAIN(5,5,NPL),IAPROX,LFIRST
* /FKRSID/
&, RPRO(2,NPL),CRPRO(2,2,NPL),RFIL(2,NPL)
&, CRFIL(2,2,NPL),RSMT(2,NPL),CRSMT(2,2,NPL)
&, CHIFIL(NPL),CHISMT(NPL)
* /FKTRUE/
&, TRUE(5,NPL),RTRUE(5,NPL),CHITRU(NPL),LTRUE
* /FKDBG/
&, LTRPL(NPL),LTRPLD(NPL)
*KEEP,FFWBI.
* Work bank indices (note that INDKTR is *NOT* a work bank index!)
PARAMETER (NWBI=10)
COMMON /FFWBI/ INDRSX(2),INDX(2),INDKX(2),INDPUR
&, INDKTR,INDKTX,INDTPR
*KEEP,BCS.
INTEGER NHROW,NHCOL,NHLEN
PARAMETER (NHROW = 2, NHCOL = 1, NHLEN=2)
INTEGER NBOSIW
PARAMETER (NBOSIW=1000000)
INTEGER IW(NBOSIW)
REAL RW(NBOSIW)
COMMON /BCS/ IW
EQUIVALENCE (RW(1),IW(1))
SAVE /BCS/
*KEEP,STFUNCT.
* index of element before row number IROW
INDR(IND,IROW)=IND+2+IW(IND+1)*(IROW-1)
* index of L'th element of row number IROW
INDCR(IND,L,IROW)=INDR(IND,IROW) + L
* L'th integer element of the IROW'th row of bank with index IND
IBTAB(IND,L,IROW)=IW(INDCR(IND,L,IROW))
* L'th real element of the IROW'th row of bank with index IND
RBTAB(IND,L,IROW)=RW(INDCR(IND,L,IROW))
*KEND.
**********************************************************************
JMAX = 0
* Allow for hit banks to be nonexistant
IF (JDIGP.GT.0 .AND. INDRSX(1).LE.0) RETURN
IF (JDIGR.GT.0 .AND. INDRSX(2).LE.0) RETURN
CALL VZERO(ITRUE,2000)
IF (JDIGP.GT.0) THEN
* Loop over planar digis looking for a corresponding hit ...
NHIT = IW(INDRSX(1)+2)
JDIG = JDIGP
100 CONTINUE
DO 200 JHIT=1,NHIT
IDIG = IBTAB(INDRSX(1),3,JHIT)
IF (IDIG.EQ.JDIG) CALL FFNUM(1,JHIT,ITRUE)
200 CONTINUE
JDIG = IBTAB(INDX(1),1,JDIG)
IF (JDIG.NE.JDIGP) GOTO 100
ENDIF
IF (JDIGR.GT.0) THEN
* ... and the same for radials
NHIT = IW(INDRSX(2)+2)
JDIG = JDIGR
300 CONTINUE
DO 400 JHIT=1,NHIT
IDIG = IBTAB(INDRSX(2),3,JHIT)
IF (IDIG.EQ.JDIG) CALL FFNUM(2,JHIT,ITRUE)
400 CONTINUE
JDIG = IBTAB(INDX(2),1,JDIG)
IF (JDIG.NE.JDIGR) GOTO 300
ENDIF
MAX = 0
JSTR = 0
500 CONTINUE
JSTR = JSTR + 1
* ITRUE now contains the number of hits for each track ...
IF (ITRUE(2,JSTR).GT.MAX) THEN
MAX = ITRUE(2,JSTR)
JMAX = ITRUE(1,JSTR)
ENDIF
IF (ITRUE(1,JSTR).GT.0 .AND. JSTR.LT.1000) GOTO 500
RETURN
END
*