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Contents of /PamVMC_update/trk/src/f77/gprnhran.F

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Revision 1.1 - (show annotations) (download)
Tue Oct 15 15:51:23 2013 UTC (11 years, 2 months ago) by formato
Branch point for: MAIN, rel
Initial revision

1 *
2 * $Id: gprnhran.F,v 1.5 2009-06-12 18:39:58 pam-rm2 Exp $
3 *
4 * $Log: gprnhran.F,v $
5 * Revision 1.5 2009-06-12 18:39:58 pam-rm2
6 * - Introduced user-defined names of output files and random seeds number.
7 * Users can do it use options of PamVMCApplication constructor:
8 * PamVMCApplication(const char* name, const char *title, const char*
9 * filename="pamtest", Int_t seed=0).
10 * The Random object that I use is TRandom3 object which has astronomical
11 * large period (in case of default initialization 0). All random generators
12 * in the code use this object by calling of gRandom singleton which keeps
13 * it.
14 *
15 * - Corrected TOF digitization routine. No problems with TDC hits due to
16 * hadronic interactions anymore.
17 *
18 * - Some small changes was done to compile code under Root 5.23. +
19 * geant4_vmc v. 2.6 without any warnings
20 *
21 * - Some classes of PamG4RunConfiguartion was changed for geant4_vmc v.
22 * 2.6.Some obsolete classes was deleted as soon as developers implemented
23 * regions.
24 *
25 * - Navigation was changed from "geomRootToGeant4" to "geomRoot", because on
26 * VMC web page written that as soon as Geant4 has no option ONLY/MANY
27 * translation of overlapped geometry to Geant4 through VGM could be wrong.
28 * I'd like to stay with Root navigation:
29 * http://root.cern.ch/root/vmc/Geant4VMC.html. This should be default
30 * option.
31 *
32 * - New Tracker digitization routine written by Sergio was implemented
33 *
34 * - PamVMC again became compatible with geant4_vmc v.2.5 and ROOT 5.20.
35 * The problem was that ROOT developers introduced in TVirtualMC class a new
36 * method SetMagField and new base class:TVirtualMagField from which
37 * user-defined classes shoukd be derived
38 *
39 * Revision 1.1 2009-02-19 17:46:26 nikolas
40 * Cleaning up before releasing
41 *
42 * Revision 3.1 2005/12/06 01:06:42 cafagna
43 * Adding new magnetic field routines
44 *
45 * Revision 1.2 1996/04/10 16:31:41 mclareni
46 * NAME given dimension 2
47 *
48 * Revision 1.1 1996/04/09 13:34:34 mclareni
49 * Add new routine rnhran.F (V149), also to Imakefile
50 *
51 * 27/05/2005 Sergio Bottai
52 * MODIFIED IN ORDER TO USE GEANT RANDOM NUMBERS
53 *
54 *
55 SUBROUTINE GPRNHRAN(Y,N,XLO,XWID,XRAN)
56 CHARACTER*8 NAME(2)
57
58 DIMENSION Y(*)
59
60 DATA IERR /0/
61 DATA NAME /'GPRNHRAN','GPRNHPRE'/
62
63 NTRY=1
64 IF(Y(N) .EQ. 1) GOTO 4
65 WRITE(6,101) NAME(1),Y(N)
66 GOTO 5
67
68 ENTRY GPRNHPRE(Y,N)
69 NTRY=2
70
71 5 YTOT=0
72 DO 1 I = 1,N
73 IF(Y(I) .LT. 0) GOTO 9
74 YTOT=YTOT+Y(I)
75 1 Y(I)=YTOT
76 IF(YTOT .LE. 0) GOTO 9
77 YINV=1/YTOT
78 DO 2 I = 1,N
79 2 Y(I)=Y(I)*YINV
80 Y(N)=1
81 IF(NTRY .EQ. 2) RETURN
82
83 c 4 CALL RANLUX(YR,1)
84 4 CALL GRNDMC(YR,1)
85 c PRINT*,'GPRNHRAN.F calls RNDM'
86
87 L=LOCATR(Y,N,YR)
88 IF(L .LT. 0) THEN
89 L=-L
90 XRAN=XLO+XWID*(L+((YR-Y(L))/(Y(L+1)-Y(L))))
91 ELSEIF(L .EQ. 0) THEN
92 XRAN=XLO+XWID*(YR/Y(1))
93 ELSE
94 XRAN=XLO+L*XWID
95 ENDIF
96 RETURN
97
98 9 IERR=IERR+1
99 IF(IERR .LT. 6) WRITE(6,102) NAME(NTRY)
100 WRITE(6,'(1X,10F13.7)') (Y(K),K=1,N)
101 XRAN=0
102 RETURN
103 101 FORMAT(/7X,'+++++ CERN V149 ',A6,' : Y(N) = ',E15.6,' .NE. 1; ',
104 1 'Y(I) NOT IN CUMULATIVE FORM.'/)
105 102 FORMAT(/7X,'+++++ CERN V149 ',A6,' : NOT ALL VALUES Y(I) > 0'/)
106 END
107

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