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aa9bc63b | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
aa9bc63b | 15 | /* |
541f7ba6 | 16 | $Id: |
17 | */ | |
aa9bc63b | 18 | |
541f7ba6 | 19 | #include <TObject.h> |
aa9bc63b | 20 | #include <TObjArray.h> |
aa9bc63b | 21 | |
541f7ba6 | 22 | //#include <TGeoArb8.h> |
23 | //#include <TGeoEltu.h> | |
24 | //#include <TGeoOverlap.h> | |
25 | //#include <TGeoTrack.h> | |
26 | //#include <TGeoAtt.h> | |
27 | //#include <TGeoManager.h> | |
28 | //#include <TGeoPainter.h> | |
29 | //#include <TGeoTrd1.h> | |
30 | //#include <TGeoBBox.h> | |
31 | #include <TGeoMaterial.h> | |
32 | //#include <TGeoPara.h> | |
33 | //#include <TGeoTrd2.h> | |
34 | //#include <TGeoBoolNode.h> | |
35 | #include <TGeoMatrix.h> | |
36 | //#include <TGeoPatternFinder.h> | |
37 | //#include <TGeoTube.h> | |
38 | //#include <TGeoCache.h> | |
39 | //#include <TGeoMCGeometry.h> | |
40 | //#include <TGeoPcon.h> | |
41 | //#include <TGeoVolume.h> | |
42 | //#include <TGeoChecker.h> | |
43 | #include <TGeoMedium.h> | |
44 | #include <TGeoPgon.h> | |
45 | //#include <TGeoVoxelFinder.h> | |
46 | //#include <TGeoCompositeShape.h> | |
47 | //#include <TGeometry.h> | |
48 | //#include <TGeoShape.h> | |
49 | //#include <TGeoCone.h> | |
50 | //#include <TGeoNode.h> | |
51 | //#include <TGeoSphere.h> | |
52 | #include "AliITSBaseGeometry.h" | |
aa9bc63b | 53 | |
aa9bc63b | 54 | |
541f7ba6 | 55 | ClassImp(AliITSMixture) |
162acd47 | 56 | |
541f7ba6 | 57 | AliITSMixture::AliITSMixture(const char *name,Int_t N,Double_t *w,TObjArray *m, |
58 | Double_t rho,Double_t radlen,Double_t intleng) | |
59 | :TGeoMixture(name,1,rho){ | |
60 | // Defines a new mixture from a number of Mixtures, and put the | |
61 | // resulting mixture into this object. This will compute avarage | |
62 | // isotopic value between different elements. | |
aa9bc63b | 63 | // Inputs: |
541f7ba6 | 64 | // Int_t N The number of mixtures in te TObjArray |
65 | // Double_t *w The array of weights of each mixture | |
66 | // TObjArray *m The array of AliITSMixture (TGeoMixture)s | |
67 | // to be mixed. | |
aa9bc63b | 68 | // Output: |
69 | // none. | |
70 | // Return: | |
aa9bc63b | 71 | // none. |
541f7ba6 | 72 | Int_t i,z=0,j,Nel; |
73 | Double_t tw,*nw,wel[110],Ael[110],el[110]; | |
74 | TGeoMixture *mix; | |
bc825688 | 75 | |
541f7ba6 | 76 | if(N>m->GetEntries()){ // Error not enough mixtures defined |
77 | Error("Mixing","There are more weight defined than mixtures"); | |
78 | return; | |
79 | } // end if | |
80 | // First normilize the weights just in case. | |
81 | tw = 0.0; | |
82 | for(i=0;i<N;i++) if(w[i]>0.0) tw += w[i]; | |
83 | nw = new Double_t[N]; | |
84 | for(i=0;i<N;i++) {if(w[i]>0.0) nw[i] = w[i]/tw;else nw[i] = 0.0;} | |
85 | // | |
86 | Nel=0; | |
87 | for(i=0;i<110;i++) {el[i] = wel[i] = Ael[i] = 0.0;} | |
88 | for(i=0;i<N;i++)if(w[i]>0.0) { | |
89 | mix = (TGeoMixture*) (m->At(i)); | |
90 | for(j=0;j<mix->GetNelements();j++) { | |
91 | z = (Int_t) ((mix->GetZmixt())[j]); | |
92 | wel[z] += nw[i]*((mix->GetWmixt())[j]); | |
93 | el[z] += wel[z]*((mix->GetZmixt())[j]); | |
94 | Ael[z] += wel[z]*((mix->GetAmixt())[j]); | |
95 | } // end for j | |
bc825688 | 96 | } // end for i |
541f7ba6 | 97 | tw = 0.0; |
98 | for(i=1;i<110;i++) if(wel[i]>0.0){ | |
99 | Nel++; | |
100 | tw += wel[i]; | |
101 | } // end for | |
102 | if(tw<=0.0) { // Error no elements defined. | |
103 | Error("Mixing","Total weight of this mixture is zero"); | |
104 | delete[] nw; | |
105 | return; | |
bc825688 | 106 | } // end if |
541f7ba6 | 107 | // setup TGeoMixture data members. |
108 | fNelements = Nel; | |
109 | if(fZmixture!=0) delete[] fZmixture; | |
110 | if(fAmixture!=0) delete[] fAmixture; | |
111 | if(fWeights!=0) delete[] fWeights; | |
112 | fZmixture = new Double_t[Nel]; | |
113 | fAmixture = new Double_t[Nel]; | |
114 | fWeights = new Double_t[Nel]; | |
115 | if(rho>0.) fDensity = rho; | |
116 | else { // try to compute density form mixture. | |
117 | rho = 0.0; | |
118 | for(i=0;i<N;i++) if(nw[i]>0.0) { | |
119 | mix = (TGeoMixture*) (m->At(i)); | |
120 | rho += nw[i]*(mix->GetDensity()); | |
121 | } // end for i | |
122 | fDensity = rho; | |
bc825688 | 123 | } // end if |
541f7ba6 | 124 | if(radlen>0.) fRadLen = radlen; |
125 | else { // try to compute radiation form mixture. | |
126 | // From "Review of Particle Physics" Particle Data Group Section | |
127 | // 26.4.1 equation 26.21 (2002). | |
128 | radlen = 0.0; | |
129 | for(i=0;i<N;i++) if(nw[i]>0.0) { | |
130 | mix = (TGeoMixture*) (m->At(i)); | |
131 | if(mix->GetRadLen()>0.0) rho += 1.0/(nw[i]*(mix->GetRadLen())); | |
132 | } // end for i | |
133 | fRadLen = 1.0/radlen; | |
bc825688 | 134 | } // end if |
541f7ba6 | 135 | if(intleng>0.) fIntLen = intleng; |
136 | else { // try to compute interaction form mixture. | |
137 | intleng = 0.0; | |
138 | for(i=0;i<N;i++) if(nw[i]>0.0) { | |
139 | mix = (TGeoMixture*) (m->At(i)); | |
140 | if(mix->GetIntLen()>0.0) intleng += 1.0/(nw[i]*(mix->GetIntLen())); | |
141 | } // end for i | |
142 | fIntLen = 1.0/intleng; | |
bc825688 | 143 | } // end if |
541f7ba6 | 144 | j = 0; |
145 | for(z=1;z<110;z++){ | |
146 | wel[z] /= tw; | |
147 | el[z] /= tw; | |
148 | Ael[z] /= tw; | |
149 | if(wel[z]>0.0) this->DefineElement(j++,Ael[z],el[z],wel[z]); | |
150 | } // end for i | |
151 | delete[] nw; | |
bc825688 | 152 | } |
bc825688 | 153 | |
541f7ba6 | 154 | //ClassImp(AliITSArb8) |
bc825688 | 155 | |
541f7ba6 | 156 | //ClassImp(AliITSBBox) |
bc825688 | 157 | |
541f7ba6 | 158 | //ClassImp(AliITSCone) |
bc825688 | 159 | |
541f7ba6 | 160 | //ClassImp(AliITSConeSeg) |
bc825688 | 161 | |
541f7ba6 | 162 | //ClassImp(AliITSCtub) |
bc825688 | 163 | |
541f7ba6 | 164 | //ClassImp(AliITSEltu) |
bc825688 | 165 | |
541f7ba6 | 166 | //ClassImp(AliITSGtra) |
bc825688 | 167 | |
541f7ba6 | 168 | //ClassImp(AliITSpCon) |
bc825688 | 169 | |
541f7ba6 | 170 | //ClassImp(AliITSTube) |