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fe4da5cc | 1 | * |
2 | * $Id$ | |
3 | * | |
4 | * $Log$ | |
5 | * Revision 1.1.1.1 1995/10/24 10:20:48 cernlib | |
6 | * Geant | |
7 | * | |
8 | * | |
9 | #include "geant321/pilot.h" | |
10 | *CMZ : 3.21/02 29/03/94 15.41.28 by S.Giani | |
11 | *-- Author : | |
12 | SUBROUTINE GFLRAD(IAXIS,ISH,IROT,DX,PARS,CL,CH,IERR) | |
13 | C. | |
14 | C. ****************************************************************** | |
15 | C. * * | |
16 | C. * ROUTINE TO COMPUTE THE LIMITS IN R FOR THE SHAPE ISH * | |
17 | C. * DISPLACED BY THE VECTOR DX AND ROTATED BY THE MATRIX IROT. * | |
18 | C. * IF IAXIS = 4 THE R IS THE XY PLANE R, IF IAXIS = 5 IT IS * | |
19 | C. * THE 3 DINEMSIONAL SPACE R. THE SHAPE HAS NPAR PARAMETERS * | |
20 | C. * IN THE ARRAY PARS. THE LOWER LIMIT IS RETURNED IN CL AND * | |
21 | C. * THE HIGHER IN CH. IF THE CALCULATION CANNOT BE PERFORMED * | |
22 | C. * IERR IS SET TO 1 OTHERWISE IT IS SET TO 0. * | |
23 | C. * * | |
24 | C. * ==>Called by : GFCLIM * | |
25 | C. * Author A.McPherson ********* * | |
26 | C. * * | |
27 | C. ****************************************************************** | |
28 | C. | |
29 | #include "geant321/gcbank.inc" | |
30 | #include "geant321/gconsp.inc" | |
31 | #include "geant321/gcshno.inc" | |
32 | DIMENSION DX(3),PARS(11),X(3),XT(3) | |
33 | C. | |
34 | C. -------------------------------------------------- | |
35 | C. | |
36 | IERR=1 | |
37 | C | |
38 | C FIRST CALCULATE THE LENGTH OF THE DISPLACEMENT OF THE | |
39 | C ORIGIN. | |
40 | C | |
41 | DXS=DX(1)*DX(1)+DX(2)*DX(2) | |
42 | IF(IAXIS.EQ.5) DXS=DXS+DX(3)*DX(3) | |
43 | IF(DXS.GT.0.0) DXS=SQRT(DXS) | |
44 | C | |
45 | IF(ISH.GT.4.AND.ISH.NE.10.AND.ISH.NE.28) GO TO 40 | |
46 | C | |
47 | C CUBOIDS, TRAPEZOIDS, PARALLELEPIPEDS. | |
48 | C | |
49 | CH=0.0 | |
50 | CL=DXS | |
51 | C | |
52 | DO 30 IP=1,8 | |
53 | C | |
54 | C THIS IS A LOOP OVER THE 8 CORNERS. | |
55 | C FIRST FIND THE LOCAL COORDINATES. | |
56 | C | |
57 | IF(ISH.EQ.28) THEN | |
58 | C | |
59 | C General twisted trapezoid. | |
60 | C | |
61 | IL=(IP+1)/2 | |
62 | I0=IL*4+11 | |
63 | IS=(IP-IL*2)*2+1 | |
64 | X(3)=PARS(1)*IS | |
65 | X(1)=PARS(I0)+PARS(I0+2)*X(3) | |
66 | X(2)=PARS(I0+1)+PARS(I0+3)*X(3) | |
67 | GO TO 20 | |
68 | C | |
69 | ENDIF | |
70 | C | |
71 | IP3=ISH+2 | |
72 | IF(ISH.EQ.10) IP3=3 | |
73 | IF(ISH.EQ.4) IP3=1 | |
74 | X(3)=PARS(IP3) | |
75 | IF(IP.LE.4) X(3)=-X(3) | |
76 | IP2=3 | |
77 | IF(ISH.GT.2.AND.X(3).GT.0.0) IP2=4 | |
78 | IF(ISH.EQ.1.OR.ISH.EQ.10) IP2=2 | |
79 | IF(ISH.EQ.4) IP2=4 | |
80 | IF(ISH.EQ.4.AND.X(3).GT.0.0) IP2=8 | |
81 | X(2)=PARS(IP2) | |
82 | IF(MOD(IP+3,4).LT.2) X(2)=-X(2) | |
83 | IP1=1 | |
84 | IF(ISH.NE.1.AND.ISH.NE.10.AND.X(3).GT.0.0) IP1=2 | |
85 | IF(ISH.EQ.4) IP1=5 | |
86 | IF(ISH.EQ.4.AND.X(3).GT.0.0) IP1=IP1+4 | |
87 | IF(ISH.EQ.4.AND.X(2).GT.0.0) IP1=IP1+1 | |
88 | X(1)=PARS(IP1) | |
89 | IF(MOD(IP,2).EQ.1) X(1)=-X(1) | |
90 | C | |
91 | IF(ISH.NE.10) GO TO 10 | |
92 | X(1)=X(1)+X(2)*PARS(4)+X(3)*PARS(5) | |
93 | X(2)=X(2)+X(3)*PARS(6) | |
94 | 10 CONTINUE | |
95 | C | |
96 | IF(ISH.NE.4) GO TO 20 | |
97 | IP4=7 | |
98 | IF(X(3).GT.0.0) IP4=11 | |
99 | X(1)=X(1)+X(2)*PARS(IP4)+X(3)*PARS(2) | |
100 | X(2)=X(2)+X(3)*PARS(3) | |
101 | 20 CONTINUE | |
102 | C | |
103 | C ROTATE. | |
104 | C | |
105 | JROT=LQ(JROTM-IROT) | |
106 | XT(1)=X(1) | |
107 | XT(2)=X(2) | |
108 | XT(3)=X(3) | |
109 | IF(IROT.NE.0) CALL GINROT(X,Q(JROT+1),XT) | |
110 | C | |
111 | C NOW COMPUTE RMIN = PROJECTED R ON DX AND RMAX = R | |
112 | C AND UPDATE LIMITS IF NECESSARY. | |
113 | C | |
114 | R2=(XT(1)+DX(1))**2+(XT(2)+DX(2))**2 | |
115 | IF(IAXIS.EQ.5) R2=R2+(XT(3)+DX(3))**2 | |
116 | R=SQRT(R2) | |
117 | IF(R.GT.CH) CH=R | |
118 | C | |
119 | IF(CL.LE.0.0) GO TO 30 | |
120 | C | |
121 | XPT=DX(1)*XT(1)+DX(2)*XT(2) | |
122 | IF(IAXIS.EQ.5) XPT=XPT+DX(3)*XT(3) | |
123 | IF(DXS.LE.1.0E-05) GO TO 30 | |
124 | RMN=DXS+XPT/DXS | |
125 | IF(RMN.LT.CL) CL=RMN | |
126 | C | |
127 | 30 CONTINUE | |
128 | C | |
129 | IF(CL.LE.0.0) CL=0.0 | |
130 | C | |
131 | IERR=0 | |
132 | GO TO 999 | |
133 | C | |
134 | 40 CONTINUE | |
135 | IF(ISH.GT.8.AND.ISH.NE.NSCTUB.AND.ISH.NE.13.AND.ISH.NE.14)GO TO 80 | |
136 | C | |
137 | C TUBES AND CONES. | |
138 | C | |
139 | IP3=3 | |
140 | IF(ISH.GT.6.AND.ISH.NE.NSCTUB.AND.ISH.NE.13.AND.ISH.NE.14) IP3=1 | |
141 | DZ=PARS(IP3) | |
142 | R=PARS(2) | |
143 | IF(ISH.EQ.NSCTUB) THEN | |
144 | S1 = (1.0-PARS(8))*(1.0+PARS(8)) | |
145 | IF( S1 .GT. 0.0) S1 = SQRT(S1) | |
146 | S2 = (1.0-PARS(11))*(1.0+PARS(11)) | |
147 | IF( S2 .GT. 0.0) S2 = SQRT(S2) | |
148 | IF( S2 .GT. S1 ) S1 = S2 | |
149 | DZ = DZ+R*S1 | |
150 | ENDIF | |
151 | ** | |
152 | IF(ISH.EQ.13) THEN | |
153 | ** | |
154 | ** APPROXIME TO A CYLINDER WHIT RADIUS | |
155 | ** EQUAL TO THE ELLIPSE MAJOR AXIS | |
156 | ** | |
157 | RMN=0.0 | |
158 | IF(PARS(1).GT.R) R=PARS(1) | |
159 | GOTO 50 | |
160 | ENDIF | |
161 | RMN=PARS(1) | |
162 | * | |
163 | IF(ISH.EQ.14) THEN | |
164 | R = SQRT(PARS(2)**2+(PARS(3)*TAN(PARS(4)*DEGRAD))**2) | |
165 | GO TO 50 | |
166 | ENDIF | |
167 | C | |
168 | IF(ISH.LE.6.OR.ISH.EQ.NSCTUB) GO TO 50 | |
169 | C | |
170 | R=PARS(3) | |
171 | IF(PARS(5).GT.R) R=PARS(5) | |
172 | RMN=PARS(2) | |
173 | IF(PARS(4).LT.RMN) RMN=PARS(4) | |
174 | C | |
175 | 50 CONTINUE | |
176 | C | |
177 | C ROTATE THE LOCAL Z AXIS. | |
178 | C | |
179 | X(1)=0.0 | |
180 | X(2)=0.0 | |
181 | X(3)=1.0 | |
182 | JROT=LQ(JROTM-IROT) | |
183 | XT(1)=X(1) | |
184 | XT(2)=X(2) | |
185 | XT(3)=X(3) | |
186 | IF(IROT.NE.0) CALL GINROT(X,Q(JROT+1),XT) | |
187 | C | |
188 | C COMPUTE RMIN AND RMAX ASSUMING COMPLETE TUBE HALF | |
189 | C LENGTH DZ AND RADIUS R. | |
190 | C | |
191 | ST2=1.0 | |
192 | IF(IAXIS.EQ.4) ST2=(1+XT(3))*(1-XT(3)) | |
193 | DR=SQRT(DZ*DZ*ST2+R*R) | |
194 | CL=DXS-DR | |
195 | IF(CL.LT.0.0) CL=0.0 | |
196 | CH=DXS+DR | |
197 | IF(IROT.EQ.0.AND.DXS.LT.1.0E-05) CL=RMN | |
198 | IERR=0 | |
199 | C | |
200 | GO TO 999 | |
201 | C | |
202 | 80 CONTINUE | |
203 | IF(ISH.GT.9) GO TO 999 | |
204 | C | |
205 | C SPHERE. | |
206 | C | |
207 | CL=DXS-PARS(2) | |
208 | IF(CL.LT.0.0) CL=0.0 | |
209 | CH=DXS+PARS(2) | |
210 | IF(IAXIS.EQ.5.AND.DXS.LT.1.0E-05) CL=PARS(1) | |
211 | IERR=0 | |
212 | C | |
213 | 999 CONTINUE | |
214 | END |