*-- Author : S.Burke / J.V. Morris
SUBROUTINE FKLPAS(JPL,NDROP,IERR)
**********************************************************************
* *
* Point acquisition during smoothing (at plane JPL) *
* *
* ERROR CONDITIONS; *
* IERR = 0 ; normal termination *
* -> IERR = 1 ; smoothed vector missing *
* -> IERR = 2 ; LMES(JPL) set on entry, but IRJCT(JPL) > 1 *
* -> IERR = 3 ; LMES(JPL) not set by FKLOOK or FKHUNT *
* -> IERR = 4 ; internal error (IFLAG=0 in call to FKLRFL) *
* IERR = 7 ; measurement covariance n.p.d. (not added) *
* IERR = 11 ; smoothed covariance n.p.d. (not added) *
* IERR = 12 ; covariance of smoothed residuals n.p.d. *
* IERR = 16 ; theta > pi/2 (reset to pi/4) *
* IERR = 17 ; theta > 1 (warning) *
* *
* -> `Fatal' error *
* *
* `Fatal' means that a serious problem occurred, but all errors *
* are recoverable as no changes are made. *
* *
* Error codes from FKHUNT are passed back unchanged, but these are *
* not yet defined. *
* *
**********************************************************************
LOGICAL FKLOOK,FKHUNT
*KEEP,FKECODE.
*KEND.
*KEEP,FKNPL.
*
* 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.
*
* /FKPROJ/
* /FKFILT/
* /FKSMTH/
* /FKINT/
* /FKRSID/
* /FKTRUE/
* /FKDBG/
*KEEP,FKFLAG.
*KEEP,FKRJCT.
*KEEP,FKSMTH.
*KEEP,FKRSID.
*KEEP,FKTRUE.
*KEND.
**********************************************************************
CALL FKERR(IUTIL,IROUT,IWARN,IINF1,IERR)
*
* See if there's a new digi - first look for a completely new one ...
* (If there's already a measurement, there may be a problem. FKHUNT
* should check for this, and unhook the existing measurement if
* necessary.)
*
IF (.NOT.FKHUNT(JPL,SSMT(1,JPL),CSMT(1,1,JPL),IFAIL)) THEN
IF (IFAIL.NE.0) CALL FKERR(IUTIL,IROUT,IWARN,IFAIL,IERR)
*
* No luck, so if a point was previously rejected here, see if it
* can go back again (but don't try more than once).
* If NDROP = JPL we just rejected this point, so don't try to
* put it back!
*
* LMES(JPL) should not be set if IRJCT(JPL) is positive
CALL FKERR(IUTIL,IROUT,IWARN,IINF3,IERR)
IF (.NOT.FKLOOK(JPL,SSMT(1,JPL),CSMT(1,1,JPL),IFAIL)) RETURN
IF (IFAIL.NE.0) CALL FKERR(IUTIL,IROUT,IFAIL/100,IFAIL,IERR)
* This shouldn't happen!
*
* A new point has been found, so put it in
*
CALL FKLRFL(JPL,2,IFAIL)
IF (IFAIL.NE.0) CALL FKERR(IUTIL,IROUT,IWARN,IFAIL,IERR)
CALL FKLRSD(JPL,SSMT(1,JPL),CSMT(1,1,JPL),-3,
IF (IFAIL.NE.0) CALL FKERR(IUTIL,IROUT,IWARN,IFAIL,IERR)
CALL FKRST(JPL,IFAIL)
IF (IFAIL.NE.0) CALL FKERR(IUTIL,IROUT,IWARN,IFAIL,IERR)
* Only count a genuinely new point
*