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1 | * |
| 2 | * $Id$ |
| 3 | * |
| 4 | * $Log$ |
| 5 | * Revision 1.1.1.1 1995/10/24 10:20:51 cernlib |
| 6 | * Geant |
| 7 | * |
| 8 | * |
| 9 | #include "geant321/pilot.h" |
| 10 | *CMZ : 3.21/02 29/03/94 15.41.29 by S.Giani |
| 11 | *-- Author : |
| 12 | SUBROUTINE GMEPOS (JVO, IN, XC, IFL) |
| 13 | C. |
| 14 | C. ****************************************************************** |
| 15 | C. * * |
| 16 | C. * Updates the common /GCVOLU/ and the structure JGPAR * |
| 17 | C. * for contents positioned. * |
| 18 | C. * * |
| 19 | C. * For IFL nonzero, it also checks if the point XC is inside * |
| 20 | C. * the content. It returns IN = 0, if the point is outside. * |
| 21 | C. * Otherwise, it transforms XC in the local system. * |
| 22 | C. * * |
| 23 | C. * Input : JVO, IN, XC, IFL * |
| 24 | C. * Output : IN, XC * |
| 25 | C. * * |
| 26 | C. * Called by : GDRAW, GMEDIA * |
| 27 | C. * Authors : S.Banerjee, R.Brun, F.Bruyant, A.McPherson * |
| 28 | C. * * |
| 29 | C. ****************************************************************** |
| 30 | C. |
| 31 | #include "geant321/gcbank.inc" |
| 32 | #include "geant321/gcvolu.inc" |
| 33 | DIMENSION XC(*) |
| 34 | REAL XT(3) |
| 35 | C. |
| 36 | C. ------------------------------------------------------------------ |
| 37 | C. |
| 38 | JIN = LQ(JVO-IN) |
| 39 | IVOT = Q(JIN+2) |
| 40 | JVOT = LQ(JVOLUM-IVOT) |
| 41 | IF (NLEVEL.GE.NLDEV(NLEVEL)) THEN |
| 42 | * (case with JVOLUM structure locally developed) |
| 43 | JPAR = LQ(LQ(JVOLUM-LVOLUM(NLDEV(NLEVEL)))) |
| 44 | DO 10 ILEV = NLDEV(NLEVEL), NLEVEL |
| 45 | IF (IQ(JPAR+1).EQ.0) THEN |
| 46 | IF (ILEV.EQ.NLEVEL) THEN |
| 47 | JPAR = LQ(JPAR-IN) |
| 48 | ELSE |
| 49 | JPAR = LQ(JPAR-LINDEX(ILEV+1)) |
| 50 | ENDIF |
| 51 | IF (JPAR.EQ.0) GO TO 20 |
| 52 | ELSE IF (IQ(JPAR-3).GT.1) THEN |
| 53 | JPAR = LQ(JPAR-LINDEX(ILEV+1)) |
| 54 | ELSE |
| 55 | JPAR = LQ(JPAR-1) |
| 56 | ENDIF |
| 57 | 10 CONTINUE |
| 58 | JPAR = JPAR +5 |
| 59 | NPAR = IQ(JPAR) |
| 60 | GO TO 30 |
| 61 | ENDIF |
| 62 | * (normal case) |
| 63 | 20 NPAR = Q(JVOT+5) |
| 64 | IF (NPAR.EQ.0) THEN |
| 65 | JPAR = JIN +9 |
| 66 | NPAR = Q(JPAR) |
| 67 | ELSE |
| 68 | JPAR = JVOT +6 |
| 69 | ENDIF |
| 70 | * |
| 71 | 30 IROTT = Q(JIN+4) |
| 72 | IF (IFL.NE.0) THEN |
| 73 | C***** Code Expanded From Routine: GITRAN |
| 74 | C. |
| 75 | C. ------------------------------------------------------------------ |
| 76 | C. |
| 77 | IF (IROTT .EQ. 0) THEN |
| 78 | XT(1) = XC(1) - Q(5+JIN) |
| 79 | XT(2) = XC(2) - Q(6+JIN) |
| 80 | XT(3) = XC(3) - Q(7+JIN) |
| 81 | * |
| 82 | ELSE |
| 83 | XL1 = XC(1) - Q(5+JIN) |
| 84 | XL2 = XC(2) - Q(6+JIN) |
| 85 | XL3 = XC(3) - Q(7+JIN) |
| 86 | JR = LQ(JROTM-IROTT) |
| 87 | XT(1) = XL1*Q(JR+1) + XL2*Q(JR+2) + XL3*Q(JR+3) |
| 88 | XT(2) = XL1*Q(JR+4) + XL2*Q(JR+5) + XL3*Q(JR+6) |
| 89 | XT(3) = XL1*Q(JR+7) + XL2*Q(JR+8) + XL3*Q(JR+9) |
| 90 | * |
| 91 | ENDIF |
| 92 | C***** End of Code Expanded From Routine: GITRAN |
| 93 | CALL GINME (XT, Q(JVOT+2), Q(JPAR+1), IYES) |
| 94 | IF (IYES.EQ.0) IN = 0 |
| 95 | ENDIF |
| 96 | * |
| 97 | IF (IN.GT.0) THEN |
| 98 | * |
| 99 | * Volume found at deeper level |
| 100 | * |
| 101 | NL1 = NLEVEL |
| 102 | NLEVEL = NLEVEL +1 |
| 103 | LVOLUM(NLEVEL) = IVOT |
| 104 | NAMES(NLEVEL) = IQ(JVOLUM+IVOT) |
| 105 | NUMBER(NLEVEL) = Q(JIN+3) |
| 106 | LINDEX(NLEVEL) = IN |
| 107 | LINMX(NLEVEL) = Q(JVO+3) |
| 108 | GONLY(NLEVEL) = Q(JIN+8) |
| 109 | IF (LQ(LQ(JVOLUM-IVOT)).EQ.0) THEN |
| 110 | NLDEV(NLEVEL) = NLDEV(NL1) |
| 111 | ELSE |
| 112 | NLDEV(NLEVEL) = NLEVEL |
| 113 | ENDIF |
| 114 | CALL GTRMUL (GTRAN(1,NL1), GRMAT(1,NL1), Q(JIN+5), IROTT, |
| 115 | + GTRAN(1,NLEVEL), GRMAT(1,NLEVEL) ) |
| 116 | IQ(JGPAR +NLEVEL) = NPAR |
| 117 | LQ(JGPAR -NLEVEL) = JPAR |
| 118 | * |
| 119 | IF (IFL.NE.0) THEN |
| 120 | XC(1) = XT(1) |
| 121 | XC(2) = XT(2) |
| 122 | XC(3) = XT(3) |
| 123 | ENDIF |
| 124 | ENDIF |
| 125 | * END GMEPOS |
| 126 | END |
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