Using Names inside User routines

From: Giuseppe Battistoni (Giuseppe.Battistoni@mi.infn.it)
Date: Tue Oct 16 2007 - 10:04:20 CEST

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    Dear Vadim,
    inside User routines you must use numbers instead of names.
    In order to get correspondance between names and numbers you can call the
    following subroutines:

    1) To get the number starting from a region name
    CALL GEON2R ( REGNAM, NREG, IERR )
    * Input variable: *
    * Regnam = region name *
    * *
    * Output variables: *
    * Nreg = region number *
    * Ierr = error code (0 on success, 1 on failure) *

    2) To get the name of a region when you know the number:
    CALL GEOR2N ( NREG, REGNAM, IERR )
    * Input variable: *
    * Nreg = region name *
    * *
    * Output variables: *
    * Regname = region number *
    * Ierr = error code (0 on success, 1 on failure) *

    Be careful: these routines are time consuming. Therefore if you really
    need to use them, you'd better fill a correspondance vector at
    initialization time and put it into a common of yours

    Note: there exist also the analogue routines for the lattice case:
    1( CALL GEOL2N ( NLATT, LATNAM, IRTLAT, IERR )
    * Input variable: *
    * Nlatt = lattice number *
    * *
    * Output variables: *
    * Latnam = lattice name (CHAR*8) *
    * Irtlat = # of the (possibile) rotation associated *
    * Ierr = error code (0 on success, 1 on failure) *
    * *

    2) CALL GEOL2N ( NLATT, LATNAM, IRTLAT, IERR )
    * Input variable: *
    * Nlatt =
    * *
    * Output variables: *
    * Latnam = lattice name (CHAR*8) *
    * Irtlat = # of the (possibile) rotation associated *
    * Ierr = error code (0 on success, 1 on failure) *

    Best regards
            Giuseppe Battistoni

     On Tue, 16 Oct 2007, Vadim Talanov wrote:

    > Dear Vitaly,
    >
    > yes, you can do this in the MGDRAW routine (available as mgdraw.f in the
    > /usermvax directory of FLUKA installation).
    >
    > At the BXDRAW entry of MGDRAW you have the MREG and NEWREG values for the FLUKA
    > geometry regions from and where to the particle track goes that should be enough
    > to record the particle information at the desired location. Most probably all
    > information about a particle track that you will need is in the (TRACKR) common.
    >
    > By the way, this e-mail inspires other question, following the recent discussion
    > how to use the names of FLUKA regions:
    >
    > Can one use the region name instead of the region number also in MGDRAW and
    > other user routines, in the same manner as it can be used now in the FLUKA input?
    >
    > Kind regards, Vadim
    >
    > Vitaly Pronskikh wrote:
    > > Dear FLUKA experts and users,
    > >
    > > could you please suggest how to obtain momenta and coordinates of particles
    > > entering a volume.
    > >
    > > Is it possible to do that using standard estimators, or one should write own
    > > subroutine (which) instead? Maybe this question has already been discussed,
    > > there and there are any examples?
    > >
    > > Many thanks for any response in advance,
    > >
    > > Vitaly
    > >
    > >
    > >
    >

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