*-- Author : STEPHEN J. MAXFIELD 05/04/91
SUBROUTINE FRCART(IROW,XXP,YYP,XXM,YYM,ZZ,IBAD)
**: FRCART 40000 SM. New definition of dead wire flag.
**----------------------------------------------------------------------
*
*
* PURPOSE: Compute X,Y,Z of a digitisation.
*
*
* INPUT : IROW Row number in FRRE or FRLC bank
*
*
* OUTPUT : XXP,YYP x, y of hit assuming positive sign for drift
* : XXM,YYM x, y of hit assuming negative sign for drift
* : ZZ z of hit
* : IBAD 0 if digi O.K. 1 if digi 'unreliable'
*
* NOTE : The routine uses 'local' coordinates (drift and radius)
* taken from the FRLC bank. If this temporary bank does not
* exist, it is created. The local coordinate data is
* combined with corrected geometrical data taken from
* the bank FRG1. Again if FRG1 doesn't exist, it is created.
*
*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/
*KEND.
PARAMETER(NBN=0)
* Locators for FRG1 bank
PARAMETER(IPDEAD=1)
PARAMETER(IPRPHP=2)
PARAMETER(IPRSTP=3)
PARAMETER(IPRPHM=5)
PARAMETER(IPRSTM=6)
* Locators for FRLC bank
PARAMETER(IPRCLN=1)
PARAMETER(IPRDRF=2)
PARAMETER(IPRRAD=4)
PARAMETER(IPRSGW=6)
LOGICAL FIRST
DATA FIRST/.TRUE./
*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))
*KEEP,FTFUNCT.
* Statement functions for RADIAL Chamber data access.
* Using Channel Number J
* Module, Wedge-pair and Z-plane numbers...
IRMOD(J) = J/288
IRWDP(J) = (J-IRMOD(J)*288)/12
IRZPL(J) = J-IRMOD(J)*288-IRWDP(J)*12
* Statement function for obtaining WEDGE numbers(0-47) of
* wires at plus and minus ends of Cell numbers
IRWPL(J) = (IRWDP(J)/2)*4 + (MOD(IRWDP(J),2))
IRWMI(J) = MOD(IRWPL(J) + 34,48)
* Statement function for obtaining IOS wire number (1-36)
IRIOSW(J) = IRMOD(J)*12 + IRZPL(J) + 1
* Statement functions for PLANAR Chamber data access.
* Using Channel Number J
* Module, orientation, W-cell and Z-plane numbers...
IPMOD(J) = J/384
IPORI(J) = (J-IPMOD(J)*384)/128
IPWCL(J) = (J-IPMOD(J)*384-IPORI(J)*128)/4
IPZPL(J) = (J-IPMOD(J)*384-IPORI(J)*128-IPWCL(J)*4)
* IPSMD in range 0:8 Planar module number.
IPSMD(J) = IPMOD(J)*3 + IPORI(J)
*
* IOS wire number (runs from 0 to 36)
IPIOSW(J) = IPSMD(J)*4 + IPZPL(J) + 1
* SB plane numbers (1-72) from cell number
IPSBW(J) = 24*IPMOD(J) + 4*IPORI(J) + IPZPL(J) + 1
IRSBW(J) = 24*IRMOD(J) + IRZPL(J) + 13
* Module, orientation, wire and (typical) cell number from plane
* number in the range 1-72 (planars, radials and combined)
IPMSB(J) = (J - 1)/24
IPOSB(J) = (J - 24*IPMSB(J) - 1)/4
IPZSB(J) = J - 24*IPMSB(J) - 4*IPOSB(J) - 1
IPCLSB(J) = 384*IPMSB(J) + 128*IPOSB(J) + IPZSB(J)
IRMSB(J) = (J - 1)/24
IRZSB(J) = J - 24*IRMSB(J) - 13
IRCLSB(J) = 288*IRMSB(J) + IRZSB(J)
IRADSB(J) = (J - 24*((J-1)/24) - 1)/12
ICELSB(J) = IRADSB(J)*IRCLSB(J) + (1 - IRADSB(J))*IPCLSB(J)
*KEND.
*----------------------------------------------------------------------
* Initialisations on first call...
IF(FIRST) THEN
FIRST = .FALSE.
IQFRLC = NAMIND('FRLC')
IQFRG1 = NAMIND('FRG1')
ENDIF
*-----------------------------------------------------------
IBAD = 1
IFRG1 = IW(IQFRG1)
IF(IFRG1.EQ.0) THEN
* Create FRLC bank...
CALL FTCORG
IFRG1 = IW(IQFRG1)
IF(IFRG1.EQ.0) THEN
WRITE(6,'('' FRCART : failure to create FRG1 bank'')')
CALL H1STOP
ENDIF
ENDIF
IFRLC = IW(IQFRLC)
IF(IFRLC.EQ.0) THEN
* Create FRLC bank...
CALL FRLOCO
IFRLC = IW(IQFRLC)
IF(IFRLC.EQ.0) THEN
WRITE(6,'('' FRCART : failure to create FRLC bank'')')
CALL H1STOP
ENDIF
ENDIF
NFRLC = IW(IFRLC+2)
IF(NFRLC.LE.0) THEN
* No data. Shouldn't happen if IROW valid.
CALL ERRLOG(116,'S:FRCART : IROW not meaningful!')
RETURN
ENDIF
IF(IROW.LT.0 .OR. IROW .GT. NFRLC) THEN
CALL ERRLOG(117,'S:FRCART : IROW out of range!')
RETURN
ENDIF
* Normal processing starts here...
ICLNUM= IBTAB(IFRLC,IPRCLN,IROW)
IDEAD = IBTAB(IFRG1,IPDEAD,ICLNUM+1)
IF(IDEAD .NE. 1) THEN
IBAD = 0
DRIFT = RBTAB(IFRLC,IPRDRF,IROW)
RADIUS= RBTAB(IFRLC,IPRRAD,IROW)
ISGNW = MOD(IBTAB(IFRLC,IPRSGW,IROW),2)
* Phi, Stagger and Z of wire
PHI = RBTAB(IFRG1,2+3*ISGNW,ICLNUM+1)
STAGGR = RBTAB(IFRG1,3+3*ISGNW,ICLNUM+1)
ZZ = RBTAB(IFRG1,4+3*ISGNW,ICLNUM+1)
DSIGN = 1.
DDD = DRIFT*DSIGN + STAGGR
RR = RADIUS + FLOREN(RADIUS,ABS(DDD),DSIGN)
XXP = RR*COS(PHI) - DDD*SIN(PHI)
YYP = RR*SIN(PHI) + DDD*COS(PHI)
DSIGN = -1.
DDD = DRIFT*DSIGN + STAGGR
RR = RADIUS + FLOREN(RADIUS,ABS(DDD),DSIGN)
XXM = RR*COS(PHI) - DDD*SIN(PHI)
YYM = RR*SIN(PHI) + DDD*COS(PHI)
ELSE
XXP = 0.0
YYP = 0.0
XXM = 0.0
YYM = 0.0
ZZ = 0.0
ENDIF
* Done
RETURN
END
*