*-- Author : S.Burke
SUBROUTINE FFTRUE(JTRUE)
**********************************************************************
* *
* Fill the TRUE array from the track JTRUE *
* *
**********************************************************************
DOUBLE PRECISION Z,DZ,S(5),DTRAN(5,5)
INTEGER FFCHG
*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,FFSTEE.
PARAMETER (NFT=72)
LOGICAL LRISV,LWMAP,LGRAPH,LTRUTH
REAL DSX,DSY,DSQOP,DSTTH,DSPHI,PMCUT,PCUT,CHPCUT
&, QOPMAX,THEMAX,RFTMIN,RFTMAX,CEMAX
COMMON /FFSTEE/ DSX,DSY,DSQOP,DSTTH,DSPHI
&, PMCUT,IDIAG,JPLRSV,LRISV,LWMAP(NFT),JPLMAX
&, IRP(NPL),JPLFT(NPL),JFTPL(NFT)
&, LUNGKS,IWKGKS,IDGKS,LUNHB,LUNGKM,IWKGKM,IDGKM
&, LGRAPH,LTRUTH,IHFF,IHFK,ISRJCT,PCUT,CHPCUT
&, QOPMAX,THEMAX,RFTMIN,RFTMAX,CEMAX
*KEEP,FKCONS.
DOUBLE PRECISION ZPL,DZPL,RADL
COMMON /FKCONS/ ZPL(NPL),DZPL(NPL),RADL(NPL)
*KEEP,FKTRUE.
*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.
**********************************************************************
LTRUE = .FALSE.
* Find the starting track bank (if it exists)
INDFS = NLINK('FS ',0)
IF (INDFS.GT.0) THEN
* Find the track with the right STR number
JTRACK = 0
100 CONTINUE
JTRACK = JTRACK + 1
IF (JTRACK.GT.IW(INDFS+2)) THEN
* This should be impossible, but ...
INDFS = 0
GOTO 150
ENDIF
JSTR = IBTAB(INDFS,10,JTRACK)
IF (JSTR.NE.JTRUE) GOTO 100
PX = RBTAB(INDFS,1,JTRACK)
PY = RBTAB(INDFS,2,JTRACK)
PZ = RBTAB(INDFS,3,JTRACK)
IPDG = IBTAB(INDFS,4,JTRACK)
X = RBTAB(INDFS,5,JTRACK)
Y = RBTAB(INDFS,6,JTRACK)
Z = RBTAB(INDFS,7,JTRACK)
ENDIF
150 CONTINUE
IF (INDFS.LE.0) THEN
* Find the simulated track and vertex banks
INDSTR = NLINK('STR ',0)
INDSVX = NLINK('SVX ',0)
IF (INDSTR.LE.0 .OR. INDSVX.LE.0) RETURN
IF (JTRUE.LE.0 .OR. JTRUE.GT.IW(INDSTR+2)) RETURN
* Get the track parameters at the vertex
PX = RBTAB(INDSTR,1,JTRUE)
PY = RBTAB(INDSTR,2,JTRUE)
PZ = RBTAB(INDSTR,3,JTRUE)
IPDG = IBTAB(INDSTR,5,JTRUE)
JSVX = IBTAB(INDSTR,9,JTRUE)
X = RBTAB(INDSVX,1,JSVX)
Y = RBTAB(INDSVX,2,JSVX)
Z = RBTAB(INDSVX,3,JSVX)
ENDIF
ICHG = FFCHG(IPDG)
* Can be a gamma (if secondaries are stacked), which screws up FKTRAN
IF (ICHG.EQ.0) RETURN
* Assemble a KF-type state vector
P = SQRT(PX*PX + PY*PY + PZ*PZ)
PT = SQRT(PX*PX + PY*PY)
S(1) = X
S(2) = Y
S(3) = FLOAT(ICHG)/P
S(4) = PT/PZ
S(5) = ATAN2(PY,PX)
CALL FKNORM(S,IFAIL)
IF (IFAIL.GE.100) RETURN
* Translate to each plane in succession
DO 200 JPL=1,JPLMAX
DZ = ZPL(JPL) - Z
CALL FKTRAN(DZ,Z,S,TRUE(1,JPL),DTRAN)
200 CONTINUE
* Use FRPF/FRRF banks if available
CALL FFXTRP(JTRUE,S)
LTRUE = .TRUE.
RETURN
END
*