1 | // $Id: EsafRandom.cc 2085 2005-08-25 15:51:58Z thea $ |
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2 | // M.Pallavicini created Feb, 11 2002 |
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3 | |
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4 | /***************************************************************************** |
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5 | * ESAF: Euso Simulation and Analysis Framework * |
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6 | * * |
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7 | * Id: EsafRandom * |
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8 | * Package: Base * |
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9 | * Coordinator: Marco.Pallavicini * |
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10 | * * |
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11 | *****************************************************************************/ |
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12 | |
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13 | //_____________________________________________________________________________ |
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14 | // |
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15 | // ESAF random numbers generator manager |
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16 | // ===================================== |
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17 | // |
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18 | // TODO |
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19 | |
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20 | #include "EsafRandom.hh" |
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21 | #include "Config.hh" |
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22 | |
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23 | EsafRandom *EsafRandom::fgMe = NULL; |
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24 | |
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25 | ClassImp(EsafRandom) |
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26 | |
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27 | //______________________________________________________________________________ |
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28 | EsafRandom::EsafRandom() : EsafConfigurable() { |
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29 | // |
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30 | // Constructor |
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31 | // |
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32 | |
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33 | string type = Conf()->GetStr("EsafRandom.fType"); |
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34 | if (type == "TRandom" ) { |
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35 | fRndm = new TRandom(); |
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36 | } else if (type == "TRandom2" ) { |
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37 | fRndm = new TRandom2(); |
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38 | } else if (type == "TRandom3" ) { |
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39 | fRndm = new TRandom3(); |
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40 | } |
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41 | else |
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42 | FatalError("EsafRandom: "+type+" random generator type not known"); |
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43 | |
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44 | // read seed from config file |
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45 | Int_t seed = (Int_t)Conf()->GetNum("EsafRandom.fSeed"); |
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46 | |
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47 | MsgForm(EsafMsg::Debug,"Seed set to %d",seed); |
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48 | fRndm->SetSeed(seed); |
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49 | |
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50 | // set frndm as root rndm number generator. |
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51 | gRandom = fRndm; |
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52 | |
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53 | } |
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54 | |
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55 | //______________________________________________________________________________ |
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56 | EsafRandom::~EsafRandom() { |
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57 | // |
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58 | // Destructor |
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59 | // |
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60 | } |
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61 | |
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62 | //______________________________________________________________________________ |
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63 | TRandom* EsafRandom::Get() { |
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64 | // |
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65 | // Get |
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66 | // |
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67 | |
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68 | if (fgMe==NULL) { |
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69 | fgMe = new EsafRandom(); |
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70 | } |
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71 | |
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72 | return fgMe->GetRandom(); |
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73 | } |
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74 | |
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75 | |
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76 | |
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