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8 | // %%%%%%%%%% |
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9 | // G4 headers |
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10 | // %%%%%%%%%% |
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11 | #include "G4UniformMagField.hh" |
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12 | #include "G4PropagatorInField.hh" |
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13 | #include "G4TransportationManager.hh" |
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14 | #include "G4Mag_UsualEqRhs.hh" |
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15 | #include "G4MagIntegratorStepper.hh" |
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16 | #include "G4ChordFinder.hh" |
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17 | #include "G4ClassicalRK4.hh" |
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18 | #include "G4HelixSimpleRunge.hh" |
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19 | |
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20 | // %%%%%%%%%% |
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21 | // Qt headers |
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22 | // %%%%%%%%%% |
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23 | #include <QtSql> |
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24 | |
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25 | // %%%%%%%%%%%%% |
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26 | // gemc headers |
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27 | // %%%%%%%%%%%%% |
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28 | #include "detector.h" |
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29 | #include "MagneticField.h" |
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30 | #include "usage.h" |
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31 | |
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32 | map<string, MagneticField> get_magnetic_Fields(gemc_opts Opt) |
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33 | { |
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34 | string hd_msg = Opt.args["LOG_MSG"].args + " Magnetic Field >> " ; |
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35 | double MGN_VERBOSITY = Opt.args["MGN_VERBOSITY"].arg; |
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36 | string database = Opt.args["DATABASE"].args; |
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37 | string dbtable = "magnetic_fields"; |
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38 | |
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39 | map<string, MagneticField> FieldMap; |
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40 | |
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41 | QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL"); |
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42 | db.setHostName("clasdb.jlab.org"); |
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43 | db.setDatabaseName(database.c_str()); |
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44 | db.setUserName("clasuser"); |
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45 | bool ok = db.open(); |
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46 | |
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47 | if(!ok) |
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48 | { |
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49 | cout << hd_msg << " Database not connected. Exiting." << endl; |
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50 | exit(-1); |
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51 | } |
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52 | |
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53 | MagneticField magneticField; |
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54 | QSqlQuery q; |
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55 | string dbexecute = "select name, type, magnitude, swim_method, description from " + dbtable ; |
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56 | q.exec(dbexecute.c_str()); |
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57 | |
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58 | if(MGN_VERBOSITY>2) |
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59 | cout << hd_msg << " Available Magnetic Fields: " << endl << endl; |
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60 | |
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61 | while (q.next()) |
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62 | { |
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63 | magneticField.name = TrimSpaces(q.value(0).toString().toStdString()); |
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64 | magneticField.type = q.value(1).toString().toStdString(); |
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65 | magneticField.magnitude = q.value(2).toString().toStdString(); |
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66 | magneticField.swim_method = q.value(3).toString().toStdString(); |
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67 | magneticField.description = q.value(4).toString().toStdString(); |
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68 | |
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69 | // Sets MFM pointer to NULL |
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70 | magneticField.init_MFM(); |
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71 | magneticField.gemcOpt = Opt; |
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72 | |
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73 | FieldMap[magneticField.name] = magneticField; |
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74 | |
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75 | if(MGN_VERBOSITY>2) |
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76 | { |
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77 | cout << " "; |
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78 | cout.width(15); |
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79 | cout << magneticField.name << " | "; |
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80 | cout << magneticField.description << endl; |
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81 | cout << " "; |
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82 | cout.width(15); |
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83 | cout << magneticField.name << " | type: | "; |
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84 | cout << magneticField.type << endl; |
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85 | cout << " "; |
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86 | cout.width(15); |
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87 | cout << magneticField.name << " | Magnitude: | "; |
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88 | cout << magneticField.magnitude << endl; |
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89 | cout << " "; |
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90 | cout.width(15); |
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91 | cout << magneticField.name << " | Swim Method: | "; |
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92 | cout << magneticField.swim_method << endl; |
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93 | cout << " -------------------------------------------------------------- " << endl; |
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94 | } |
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95 | } |
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96 | db.close(); |
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97 | |
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98 | cout << endl; |
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99 | db = QSqlDatabase(); |
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100 | db.removeDatabase("qt_sql_default_connection"); |
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101 | |
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102 | return FieldMap; |
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103 | } |
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104 | |
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105 | |
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106 | void MagneticField::create_MFM() |
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107 | { |
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108 | string hd_msg = gemcOpt.args["LOG_MSG"].args + " Magnetic Field: >> "; |
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109 | double MGN_VERBOSITY = gemcOpt.args["MGN_VERBOSITY"].arg ; |
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110 | string catch_v = gemcOpt.args["CATCH"].args; |
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111 | |
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112 | stringstream vars; |
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113 | string var, format, symmetry, MapFile; |
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114 | string var1, var2, dim; |
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115 | |
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116 | string integration_method; |
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117 | |
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118 | vars << type; |
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119 | vars >> var >> format >> symmetry >> MapFile; |
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120 | |
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121 | mappedfield = NULL; |
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122 | |
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123 | // %%%%%%%%%%%%%%%%%%%%%% |
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124 | // Uniform Magnetic Field |
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125 | // %%%%%%%%%%%%%%%%%%%%%% |
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126 | if(var == "uniform") |
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127 | { |
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128 | vars.clear(); |
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129 | vars << magnitude; |
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130 | double x,y,z; |
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131 | vars >> var; x = get_number(var); |
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132 | vars >> var; y = get_number(var); |
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133 | vars >> var; z = get_number(var); |
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134 | if(MGN_VERBOSITY>3) |
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135 | { |
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136 | cout << hd_msg << " <" << name << "> is a uniform magnetic field type." << endl; |
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137 | cout << hd_msg << " <" << name << "> dimensions:" ; |
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138 | cout << " (" << x/gauss << ", " << y/gauss << ", " << z/gauss << ") gauss." << endl; |
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139 | } |
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140 | G4UniformMagField* magField = new G4UniformMagField(G4ThreeVector((x/gauss)*gauss, (y/gauss)*gauss, (z/gauss)*gauss)); |
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141 | |
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142 | G4Mag_UsualEqRhs* iEquation = new G4Mag_UsualEqRhs(magField); |
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143 | G4MagIntegratorStepper* iStepper = new G4ClassicalRK4(iEquation); |
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144 | G4ChordFinder* iChordFinder = new G4ChordFinder(magField, 1.0e-2*mm, iStepper); |
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145 | |
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146 | MFM = new G4FieldManager(magField, iChordFinder); |
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147 | |
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148 | return; |
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149 | } |
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150 | |
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151 | // %%%%%%%%%%%%%%%%%%%%%%% |
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152 | // Mapped Field |
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153 | // phi-symmetric |
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154 | // cylindrical coordinates |
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155 | // %%%%%%%%%%%%%%%%%%%%%%% |
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156 | if(var == "mapped" && symmetry == "cylindrical") |
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157 | { |
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158 | vars.clear(); |
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159 | vars << magnitude; |
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160 | int TNPOINTS, LNPOINTS; |
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161 | double tlimits[2], llimits[2]; |
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162 | double mapOrigin[3]; |
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163 | string units[5]; |
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164 | |
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165 | vars >> var; |
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166 | TNPOINTS = (int) get_number(var); |
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167 | vars >> var1 >> var2 >> dim; |
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168 | tlimits[0] = get_number(var1 + "*" + dim); |
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169 | tlimits[1] = get_number(var2 + "*" + dim); |
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170 | units[0].assign(dim); |
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171 | |
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172 | |
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173 | vars >> var; |
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174 | LNPOINTS = (int) get_number(var); |
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175 | vars >> var1 >> var2 >> dim; |
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176 | llimits[0] = get_number(var1 + "*" + dim); |
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177 | llimits[1] = get_number(var2 + "*" + dim); |
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178 | units[1].assign(dim); |
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179 | |
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180 | // Origin |
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181 | vars >> var ; mapOrigin[0] = get_number(var); |
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182 | vars >> var ; mapOrigin[1] = get_number(var); |
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183 | vars >> var ; mapOrigin[2] = get_number(var); |
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184 | vars >> var ; units[3].assign(var); |
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185 | |
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186 | // Field Units |
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187 | vars >> var ; units[4].assign(var); |
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188 | |
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189 | vars.clear(); |
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190 | vars << swim_method; |
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191 | vars >> integration_method; |
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192 | vars.clear(); |
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193 | vars << swim_method; |
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194 | vars >> integration_method; |
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195 | if(MGN_VERBOSITY>3) |
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196 | { |
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197 | cout << hd_msg << " <" << name << "> is a phi-symmetric mapped field in cylindrical coordinates" << endl;; |
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198 | cout << hd_msg << " <" << name << "> has (" << TNPOINTS << ", " << LNPOINTS << ") points." << endl;; |
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199 | cout << hd_msg << " Tranverse Boundaries: (" << tlimits[0]/cm << ", " << tlimits[1]/cm << ") cm." << endl; |
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200 | cout << hd_msg << " Longitudinal Boundaries: (" << llimits[0]/cm << ", " << llimits[1]/cm << ") cm." << endl; |
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201 | cout << hd_msg << " Map Displacement: (" << mapOrigin[0]/cm << ", " |
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202 | << mapOrigin[1]/cm << ", " |
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203 | << mapOrigin[2]/cm << ") cm." << endl; |
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204 | cout << hd_msg << " Integration Method: " << integration_method << endl; |
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205 | cout << hd_msg << " Map Field Units: " << units[4] << endl; |
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206 | cout << hd_msg << " Map File: " << MapFile << endl; |
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207 | } |
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208 | mappedfield = new MappedField(gemcOpt, TNPOINTS, LNPOINTS, tlimits, llimits, MapFile, mapOrigin, units); |
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209 | |
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210 | } |
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211 | |
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212 | // %%%%%%%%%%%%%%%%%%%%%%% |
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213 | // Mapped Field |
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214 | // phi-segmented |
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215 | // cylindrical coordinates |
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216 | // %%%%%%%%%%%%%%%%%%%%%%% |
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217 | if(var == "mapped" && symmetry == "phi-segmented") |
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218 | { |
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219 | vars.clear(); |
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220 | vars << magnitude; |
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221 | int TNPOINTS, PNPOINTS, LNPOINTS; |
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222 | double plimits[2], tlimits[2], llimits[2]; |
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223 | double mapOrigin[3]; |
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224 | string units[5]; |
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225 | |
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226 | vars >> var ; |
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227 | PNPOINTS = (int) get_number(var); |
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228 | vars >> var1 >> var2 >> dim; |
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229 | plimits[0] = get_number(var1 + "*" + dim); |
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230 | plimits[1] = get_number(var2 + "*" + dim); |
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231 | units[0].assign(dim); |
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232 | |
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233 | vars >> var ; |
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234 | TNPOINTS = (int) get_number(var); |
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235 | vars >> var1 >> var2 >> dim; |
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236 | tlimits[0] = get_number(var1 + "*" + dim); |
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237 | tlimits[1] = get_number(var2 + "*" + dim); |
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238 | units[1].assign(dim); |
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239 | |
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240 | vars >> var ; |
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241 | LNPOINTS = (int) get_number(var); |
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242 | vars >> var1 >> var2 >> dim; |
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243 | llimits[0] = get_number(var1 + "*" + dim); |
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244 | llimits[1] = get_number(var2 + "*" + dim); |
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245 | units[2].assign(dim); |
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246 | |
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247 | // Origin |
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248 | vars >> var ; mapOrigin[0] = get_number(var); |
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249 | vars >> var ; mapOrigin[1] = get_number(var); |
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250 | vars >> var ; mapOrigin[2] = get_number(var); |
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251 | vars >> var ; units[3].assign(var); |
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252 | |
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253 | // Field Units |
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254 | vars >> var ; units[4].assign(var); |
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255 | |
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256 | vars.clear(); |
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257 | vars << swim_method; |
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258 | vars >> integration_method; |
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259 | vars.clear(); |
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260 | vars << swim_method; |
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261 | vars >> integration_method; |
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262 | double segm_phi_span = 2*(plimits[1] - plimits[0]); // factor of two: the map is assumed to cover half the segment |
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263 | int nsegments = (int) (360.0/(segm_phi_span/deg)); |
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264 | if( fabs( segm_phi_span*nsegments/deg - 360 ) > 1.0e-2 ) |
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265 | { |
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266 | cout << hd_msg << " <" << name << "> segmentation is wrong: " << nsegments << " segments, each span " |
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267 | << segm_phi_span/deg << ": it doesn't add to 360, but " << segm_phi_span*nsegments/deg << " Exiting." << endl; |
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268 | exit(0); |
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269 | |
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270 | } |
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271 | if(MGN_VERBOSITY>3) |
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272 | { |
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273 | cout << hd_msg << " <" << name << "> is a phi-segmented mapped field in cylindrical coordinates" << endl;; |
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274 | cout << hd_msg << " <" << name << "> has (" << PNPOINTS << ", " << TNPOINTS << ", " << LNPOINTS << ") points" << endl;; |
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275 | cout << hd_msg << " Azimuthal Boundaries: (" << plimits[0]/deg << ", " << plimits[1]/deg << ") deg" << endl; |
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276 | cout << hd_msg << " Tranverse Boundaries: (" << tlimits[0]/cm << ", " << tlimits[1]/cm << ") cm" << endl; |
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277 | cout << hd_msg << " Longitudinal Boundaries: (" << llimits[0]/cm << ", " << llimits[1]/cm << ") cm" << endl; |
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278 | cout << hd_msg << " Phi segment span, number of segments: " << segm_phi_span/deg << " deg, " << nsegments << endl; |
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279 | cout << hd_msg << " Map Displacement: (" << mapOrigin[0]/cm << ", " |
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280 | << mapOrigin[1]/cm << ", " |
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281 | << mapOrigin[2]/cm << ") cm" << endl; |
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282 | cout << hd_msg << " Integration Method: " << integration_method << endl; |
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283 | cout << hd_msg << " Map Field Units: " << units[4] << endl; |
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284 | cout << hd_msg << " Map File: " << MapFile << endl; |
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285 | } |
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286 | mappedfield = new MappedField(gemcOpt, TNPOINTS, PNPOINTS, LNPOINTS, tlimits, plimits, llimits, MapFile, mapOrigin, units); |
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287 | mappedfield->segm_phi_span = segm_phi_span; |
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288 | mappedfield->nsegments = nsegments; |
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289 | } |
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290 | |
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291 | |
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292 | if(integration_method == "RungeKutta") |
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293 | { |
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294 | // specialized equations for mapped magnetic field |
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295 | |
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296 | G4Mag_UsualEqRhs* iEquation = new G4Mag_UsualEqRhs(mappedfield); |
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297 | G4MagIntegratorStepper* iStepper = new G4HelixSimpleRunge(iEquation); |
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298 | G4ChordFinder* iChordFinder = new G4ChordFinder(mappedfield, 1.0e-2*mm, iStepper); |
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299 | |
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300 | MFM = new G4FieldManager(mappedfield, iChordFinder); |
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301 | MFM->SetDeltaOneStep(1*mm); |
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302 | MFM->SetDeltaIntersection(1*mm); |
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303 | } |
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304 | } |
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305 | |
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306 | MappedField::MappedField(){;} |
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307 | MappedField::~MappedField(){;} |
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308 | |
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309 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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310 | // Constructor for phi-symmetric field in cylindrical coordinates |
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311 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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312 | MappedField::MappedField(gemc_opts Opt, int TNPOINTS, int LNPOINTS, double tlimits[2], double llimits[2], |
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313 | string filename, double origin[3], string units[5]) |
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314 | { |
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315 | gemcOpt = Opt; |
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316 | string hd_msg = gemcOpt.args["LOG_MSG"].args + " Magnetic Field Constructor: >> "; |
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317 | MGN_VERBOSITY = (int) gemcOpt.args["MGN_VERBOSITY"].arg ; |
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318 | |
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319 | mapOrigin[0] = origin[0]; |
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320 | mapOrigin[1] = origin[1]; |
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321 | mapOrigin[2] = origin[2]; |
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322 | |
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323 | table_start[0] = tlimits[0]; |
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324 | table_start[1] = llimits[0]; |
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325 | cell_size[0] = (tlimits[1] - tlimits[0])/( TNPOINTS - 1); |
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326 | cell_size[1] = (llimits[1] - llimits[0])/( LNPOINTS - 1); |
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327 | |
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328 | if(MGN_VERBOSITY>3) |
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329 | { |
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330 | cout << hd_msg << " The transverse cell size is: " << cell_size[0]/cm << " cm" << endl |
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331 | << hd_msg << " and the longitudinal cell size is: " << cell_size[1]/cm << " cm" << endl; |
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332 | |
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333 | } |
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334 | |
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335 | ifstream IN(filename.c_str()); |
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336 | if(!IN) |
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337 | { |
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338 | cout << hd_msg << " File " << filename << " could not be opened. Exiting." << endl; |
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339 | exit(0); |
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340 | } |
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341 | cout << hd_msg << " Reading map file: " << filename << "... "; |
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342 | |
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343 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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344 | // Setting up storage space for tables |
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345 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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346 | B2DCylT.resize( TNPOINTS ); |
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347 | B2DCylL.resize( TNPOINTS ); |
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348 | for(int it=0; it<TNPOINTS; it++) |
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349 | { |
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350 | B2DCylT[it].resize(LNPOINTS); |
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351 | B2DCylL[it].resize(LNPOINTS); |
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352 | } |
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353 | |
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354 | // %%%%%%%%%%%%% |
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355 | // Filling table |
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356 | // %%%%%%%%%%%%% |
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357 | double TC, LC; // coordinates as read from the map |
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358 | double BT, BL; // transverse and longitudinal magnetic field as read from the map |
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359 | unsigned int IT, IL; // indexes of the vector map |
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360 | |
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361 | for(int it=0; it<TNPOINTS; it++) |
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362 | { |
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363 | for(int il=0; il<LNPOINTS; il++) |
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364 | { |
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365 | IN >> TC >> LC >> BT >> BL; |
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366 | if(units[0] == "cm") TC *= cm; |
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367 | else cout << hd_msg << " Dimension Unit " << units[0] << " not implemented yet." << endl; |
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368 | if(units[1] == "cm") LC *= cm; |
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369 | else cout << hd_msg << " Dimension Unit " << units[1] << " not implemented yet." << endl; |
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370 | |
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371 | // checking map consistency for longitudinal coordinate |
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372 | if( (llimits[0] + il*cell_size[1] - LC)/LC > 0.001) |
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373 | { |
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374 | cout << hd_msg << il << " longitudinal index wrong. Map point should be " << llimits[0] + il*cell_size[1] |
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375 | << " but it's " << LC << " instead." << endl; |
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376 | } |
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377 | |
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378 | IT = (unsigned int) floor( ( TC/mm - table_start[0]/mm + cell_size[0]/mm/2 ) / ( cell_size[0]/mm ) ) ; |
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379 | IL = (unsigned int) floor( ( LC/mm - table_start[1]/mm + cell_size[1]/mm/2 ) / ( cell_size[1]/mm ) ) ; |
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380 | |
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381 | if(units[4] == "gauss") |
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382 | { |
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383 | B2DCylT[IT][IL] = BT*gauss; |
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384 | B2DCylL[IT][IL] = BL*gauss; |
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385 | } |
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386 | if(units[4] == "kilogauss") |
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387 | { |
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388 | B2DCylT[IT][IL] = BT*kilogauss; |
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389 | B2DCylL[IT][IL] = BL*kilogauss; |
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390 | } |
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391 | else |
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392 | { |
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393 | cout << hd_msg << " Field Unit " << units[4] << " not implemented yet." << endl; |
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394 | } |
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395 | } |
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396 | // checking map consistency for transverse coordinate |
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397 | if( (tlimits[0] + it*cell_size[0] - TC)/TC > 0.001) |
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398 | { |
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399 | cout << hd_msg << it << " transverse index wrong. Map point should be " << tlimits[0] + it*cell_size[0] |
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400 | << " but it's " << TC << " instead." << endl; |
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401 | } |
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402 | } |
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403 | |
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404 | IN.close(); |
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405 | cout << " done!" << endl; |
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406 | |
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407 | } |
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408 | |
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409 | |
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410 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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411 | // Constructor for phi-segmented field in cylindrical coordinates. Field is in cartesian coordinates |
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412 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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413 | MappedField::MappedField(gemc_opts Opt, int rNPOINTS, int pNPOINTS, int zNPOINTS, double tlimits[2], double plimits[2], double llimits[2], |
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414 | string filename, double origin[3], string units[5]) |
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415 | { |
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416 | gemcOpt = Opt; |
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417 | string hd_msg = gemcOpt.args["LOG_MSG"].args + " Magnetic Field Constructor: >> "; |
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418 | MGN_VERBOSITY = (int) gemcOpt.args["MGN_VERBOSITY"].arg ; |
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419 | |
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420 | mapOrigin[0] = origin[0]; |
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421 | mapOrigin[1] = origin[1]; |
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422 | mapOrigin[2] = origin[2]; |
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423 | |
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424 | table_start[0] = plimits[0]; |
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425 | table_start[1] = tlimits[0]; |
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426 | table_start[2] = llimits[0]; |
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427 | cell_size[0] = (plimits[1] - plimits[0])/( pNPOINTS - 1); |
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428 | cell_size[1] = (tlimits[1] - tlimits[0])/( rNPOINTS - 1); |
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429 | cell_size[2] = (llimits[1] - llimits[0])/( zNPOINTS - 1); |
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430 | |
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431 | if(MGN_VERBOSITY>3) |
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432 | { |
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433 | cout << hd_msg << " the phi cell size is: " << cell_size[0]/deg << " degrees" << endl |
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434 | << hd_msg << " The radius cell size is: " << cell_size[1]/cm << " cm" << endl |
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435 | << hd_msg << " and the z cell size is: " << cell_size[2]/cm << " cm" << endl; |
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436 | } |
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437 | |
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438 | ifstream IN(filename.c_str()); |
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439 | if(!IN) |
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440 | { |
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441 | cout << hd_msg << " File " << filename << " could not be opened. Exiting." << endl; |
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442 | exit(0); |
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443 | } |
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444 | cout << hd_msg << " Reading map file: " << filename << "... "; |
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445 | |
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446 | |
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447 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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448 | // Setting up storage space for tables |
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449 | // Field[phi][r][z] |
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450 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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451 | |
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452 | B3DCylX.resize( pNPOINTS ); |
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453 | B3DCylY.resize( pNPOINTS ); |
---|
454 | B3DCylZ.resize( pNPOINTS ); |
---|
455 | for(int ip=0; ip<pNPOINTS; ip++) |
---|
456 | { |
---|
457 | B3DCylX[ip].resize( rNPOINTS ); |
---|
458 | B3DCylY[ip].resize( rNPOINTS ); |
---|
459 | B3DCylZ[ip].resize( rNPOINTS ); |
---|
460 | for(int ir=0; ir<rNPOINTS; ir++) |
---|
461 | { |
---|
462 | B3DCylX[ip][ir].resize( zNPOINTS ); |
---|
463 | B3DCylY[ip][ir].resize( zNPOINTS ); |
---|
464 | B3DCylZ[ip][ir].resize( zNPOINTS ); |
---|
465 | } |
---|
466 | } |
---|
467 | |
---|
468 | // %%%%%%%%%%%%% |
---|
469 | // Filling table |
---|
470 | // %%%%%%%%%%%%% |
---|
471 | double pC, tC, lC; // coordinates as read from the map |
---|
472 | double Bx, By, Bz; // magnetic field components as read from the map |
---|
473 | unsigned int It, Ip, Il; // indexes of the vector map |
---|
474 | for(int ip=0; ip<pNPOINTS; ip++) |
---|
475 | { |
---|
476 | for(int it=0; it<rNPOINTS; it++) |
---|
477 | { |
---|
478 | for(int il=0; il<zNPOINTS; il++) |
---|
479 | { |
---|
480 | IN >> pC >> tC >> lC >> Bx >> By >> Bz; |
---|
481 | |
---|
482 | if(units[0] == "deg") pC = pC*deg; |
---|
483 | else cout << hd_msg << " Dimension Unit " << units[0] << " not implemented yet." << endl; |
---|
484 | if(units[1] == "cm") tC *= cm; |
---|
485 | else cout << hd_msg << " Dimension Unit " << units[1] << " not implemented yet." << endl; |
---|
486 | if(units[2] == "cm") lC *= cm; |
---|
487 | else cout << hd_msg << " Dimension Unit " << units[2] << " not implemented yet." << endl; |
---|
488 | |
---|
489 | // checking map consistency for longitudinal coordinate |
---|
490 | if( (llimits[0] + il*cell_size[2] - lC)/lC > 0.001) |
---|
491 | { |
---|
492 | cout << hd_msg << il << " longitudinal index wrong. Map point should be " << llimits[0] + il*cell_size[2] |
---|
493 | << " but it's " << lC << " instead." << endl; |
---|
494 | } |
---|
495 | |
---|
496 | Ip = (unsigned int) floor( ( pC/deg - table_start[0]/deg + cell_size[0]/deg/2 ) / ( cell_size[0]/deg ) ) ; |
---|
497 | It = (unsigned int) floor( ( tC/mm - table_start[1]/mm + cell_size[1]/mm/2 ) / ( cell_size[1]/mm ) ) ; |
---|
498 | Il = (unsigned int) floor( ( lC/mm - table_start[2]/mm + cell_size[2]/mm/2 ) / ( cell_size[2]/mm ) ) ; |
---|
499 | |
---|
500 | if(units[4] == "gauss") |
---|
501 | { |
---|
502 | B3DCylX[Ip][It][Il] = Bx*gauss; |
---|
503 | B3DCylY[Ip][It][Il] = By*gauss; |
---|
504 | B3DCylZ[Ip][It][Il] = Bz*gauss; |
---|
505 | } |
---|
506 | if(units[4] == "kilogauss") |
---|
507 | { |
---|
508 | B3DCylX[Ip][It][Il] = Bx*kilogauss; |
---|
509 | B3DCylY[Ip][It][Il] = By*kilogauss; |
---|
510 | B3DCylZ[Ip][It][Il] = Bz*kilogauss; |
---|
511 | } |
---|
512 | else |
---|
513 | { |
---|
514 | cout << hd_msg << " Field Unit " << units[4] << " not implemented yet." << endl; |
---|
515 | } |
---|
516 | |
---|
517 | if(MGN_VERBOSITY>10) |
---|
518 | { |
---|
519 | cout << " phi=" << pC/deg << ", ip=" << Ip << " " |
---|
520 | << " r=" << tC/cm << ", it=" << It << " " |
---|
521 | << " z=" << lC/cm << ", iz=" << Il << " " |
---|
522 | << " Bx=" << B3DCylX[Ip][It][Il]/kilogauss << " " |
---|
523 | << " By=" << B3DCylY[Ip][It][Il]/kilogauss << " " |
---|
524 | << " Bz=" << B3DCylZ[Ip][It][Il]/kilogauss << " kilogauss. Map Values: " |
---|
525 | << " rBx=" << Bx << " " |
---|
526 | << " rBy=" << By << " " |
---|
527 | << " rBz=" << Bz << endl; |
---|
528 | |
---|
529 | } |
---|
530 | |
---|
531 | } |
---|
532 | |
---|
533 | // checking map consistency for transverse coordinate |
---|
534 | if( (tlimits[0] + it*cell_size[1] - tC)/tC > 0.001) |
---|
535 | { |
---|
536 | cout << hd_msg << it << " transverse index wrong. Map point should be " << tlimits[0] + it*cell_size[0] |
---|
537 | << " but it's " << tC << " instead." << endl; |
---|
538 | } |
---|
539 | |
---|
540 | } |
---|
541 | |
---|
542 | // checking map consistency for azimuthal coordinate |
---|
543 | if( (plimits[0] + ip*cell_size[0] - pC)/pC > 0.001) |
---|
544 | { |
---|
545 | cout << hd_msg << ip << " azimuthal index wrong. Map point should be " << plimits[0] + ip*cell_size[1] |
---|
546 | << " but it's " << pC << " instead." << endl; |
---|
547 | } |
---|
548 | |
---|
549 | } |
---|
550 | |
---|
551 | IN.close(); |
---|
552 | cout << " done!" << endl; |
---|
553 | |
---|
554 | } |
---|
555 | |
---|
556 | |
---|
557 | |
---|
558 | |
---|
559 | // %%%%%%%%%%%%% |
---|
560 | // GetFieldValue |
---|
561 | // %%%%%%%%%%%%% |
---|
562 | void MappedField::GetFieldValue(const double point[3], double *Bfield) const |
---|
563 | { |
---|
564 | |
---|
565 | double Point[3]; // global coordinates, in mm, after shifting the origin |
---|
566 | vector<double> Field[3]; |
---|
567 | |
---|
568 | Point[0] = point[0] - mapOrigin[0]/mm; |
---|
569 | Point[1] = point[1] - mapOrigin[1]/mm; |
---|
570 | Point[2] = point[2] - mapOrigin[2]/mm; |
---|
571 | |
---|
572 | Bfield[0] = Bfield[1] = Bfield[2] = 0*gauss; |
---|
573 | |
---|
574 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
---|
575 | // phi symmetric field in cylindrical coordinates |
---|
576 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
---|
577 | if(B2DCylT.size() && B2DCylL.size()) |
---|
578 | { |
---|
579 | double psfield[3] = {0,0,0}; |
---|
580 | unsigned int IT, IL; |
---|
581 | |
---|
582 | double LC; // longitudinal coordinate of the track in the global coordinate system |
---|
583 | double TC, phi; // transverse and phy polar 2D coordinates: the map is phi-symmetric. phi is angle in respect to x |
---|
584 | TC = sqrt(Point[0]*Point[0] + Point[1]*Point[1]); |
---|
585 | if( TC!=0 ) phi = acos(Point[0]/TC); |
---|
586 | else phi = 0; |
---|
587 | LC = Point[2]; |
---|
588 | |
---|
589 | IT = (unsigned int) floor( ( TC - table_start[0]/mm ) / (cell_size[0]/mm) ) ; |
---|
590 | IL = (unsigned int) floor( ( LC - table_start[1]/mm ) / (cell_size[1]/mm) ) ; |
---|
591 | |
---|
592 | if( fabs( table_start[0]/mm + IT*cell_size[0]/mm - TC) > fabs( table_start[0]/mm + (IT+1)*cell_size[0]/mm - TC) ) IT++; |
---|
593 | if( fabs( table_start[1]/mm + IL*cell_size[1]/mm - LC) > fabs( table_start[1]/mm + (IL+1)*cell_size[1]/mm - LC) ) IL++; |
---|
594 | |
---|
595 | |
---|
596 | // vector sizes are checked on both T and L components |
---|
597 | // (even if only one is enough) |
---|
598 | if(IT < B2DCylT.size() && IT < B2DCylL.size()) |
---|
599 | if(IL < B2DCylT[IT].size() && IL < B2DCylL[IT].size() ) |
---|
600 | { |
---|
601 | psfield[0] = B2DCylT[IT][IL] * cos(phi); |
---|
602 | psfield[1] = B2DCylT[IT][IL] * sin(phi); |
---|
603 | psfield[2] = B2DCylL[IT][IL]; |
---|
604 | if(MGN_VERBOSITY>5) |
---|
605 | { |
---|
606 | cout << hd_msg << " Phi-Simmetric Field: Cart. and Cyl. coordinates (cm), table indexes, magnetic field values (gauss):" << endl; |
---|
607 | cout << " x=" << point[0]/cm << " " ; |
---|
608 | cout << "y=" << point[1]/cm << " "; |
---|
609 | cout << "z=" << point[2]/cm << " "; |
---|
610 | cout << "r=" << TC/cm << " "; |
---|
611 | cout << "z=" << LC/cm << " "; |
---|
612 | cout << "phi=" << phi*180/3.141592 << " "; |
---|
613 | cout << "IT=" << IT << " "; |
---|
614 | cout << "IL=" << IL << " "; |
---|
615 | cout << "Bx=" << psfield[0]/gauss << " "; |
---|
616 | cout << "By=" << psfield[1]/gauss << " "; |
---|
617 | cout << "Bz=" << psfield[2]/gauss << endl; |
---|
618 | } |
---|
619 | } |
---|
620 | for(int i=0; i<3; i++) Field[i].push_back(psfield[i]); |
---|
621 | } |
---|
622 | |
---|
623 | |
---|
624 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
---|
625 | // phi-segmented field in cylindrical coordinates |
---|
626 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
---|
627 | if(B3DCylX.size() && B3DCylY.size() && B3DCylZ.size()) |
---|
628 | { |
---|
629 | double mfield[3] = {0,0,0}; |
---|
630 | double rotpsfield[3] = {0,0,0}; |
---|
631 | |
---|
632 | double tC, pC, lC; |
---|
633 | double pLC; |
---|
634 | double Bx, By, Bz; |
---|
635 | unsigned int Ip, It, Il; |
---|
636 | |
---|
637 | pC = atan2( Point[1], Point[0] )*rad; |
---|
638 | if( pC < 0 ) pC += 360*deg; |
---|
639 | |
---|
640 | tC = sqrt(Point[0]*Point[0] + Point[1]*Point[1]); |
---|
641 | lC = Point[2]; |
---|
642 | |
---|
643 | // Rotating the point to within the map limit |
---|
644 | int segment = 0; |
---|
645 | pLC = pC; |
---|
646 | while (pLC/deg > 30) |
---|
647 | { |
---|
648 | pLC -= 60*deg; |
---|
649 | segment++; |
---|
650 | } |
---|
651 | |
---|
652 | double dphi = pC - pLC; |
---|
653 | int sign = (pLC >= 0 ? 1 : -1); |
---|
654 | double apLC = fabs(pLC); |
---|
655 | |
---|
656 | Ip = (unsigned int) floor( ( apLC/deg - table_start[0]/deg ) / (cell_size[0]/deg ) ) ; |
---|
657 | It = (unsigned int) floor( ( tC/mm - table_start[1]/mm ) / (cell_size[1]/mm ) ) ; |
---|
658 | Il = (unsigned int) floor( ( lC/mm - table_start[2]/mm ) / (cell_size[2]/mm ) ) ; |
---|
659 | |
---|
660 | if( fabs( table_start[0]/mm + Ip*cell_size[0]/deg - apLC) > fabs( table_start[0]/mm + (Ip+1)*cell_size[0]/mm - apLC) ) Ip++; |
---|
661 | if( fabs( table_start[1]/mm + It*cell_size[1]/mm - tC) > fabs( table_start[1]/mm + (It+1)*cell_size[1]/mm - tC) ) It++; |
---|
662 | if( fabs( table_start[2]/mm + Il*cell_size[2]/mm - lC) > fabs( table_start[2]/mm + (Il+1)*cell_size[2]/mm - lC) ) Il++; |
---|
663 | |
---|
664 | // Getting Field at the rotated point |
---|
665 | // vector sizes are checked on all components |
---|
666 | // (even if only one is enough) |
---|
667 | if( Ip < B3DCylX.size() && Ip < B3DCylY.size() && Ip < B3DCylZ.size()) |
---|
668 | if( It < B3DCylX[Ip].size() && It < B3DCylY[Ip].size() && It < B3DCylZ[Ip].size()) |
---|
669 | if(Il < B3DCylX[Ip][It].size() && Il < B3DCylY[Ip][It].size() && Il < B3DCylZ[Ip][It].size()) |
---|
670 | { |
---|
671 | // Field at local point |
---|
672 | mfield[0] = B3DCylX[Ip][It][Il]; |
---|
673 | mfield[1] = B3DCylY[Ip][It][Il]; |
---|
674 | mfield[2] = B3DCylZ[Ip][It][Il]; |
---|
675 | |
---|
676 | |
---|
677 | // Rotating the field back to original point |
---|
678 | rotpsfield[0] = sign*mfield[0] * cos(dphi/rad) - mfield[1] * sin(dphi/rad); |
---|
679 | rotpsfield[1] = +sign*mfield[0] * sin(dphi/rad) + mfield[1] * cos(dphi/rad); |
---|
680 | rotpsfield[2] = sign*mfield[2]; |
---|
681 | |
---|
682 | if(MGN_VERBOSITY>6) |
---|
683 | { |
---|
684 | cout << hd_msg << " Phi-Segmented Field: Cart. and Cyl. coord. (cm), indexes, local and rotated field values (gauss):" << endl; |
---|
685 | cout << " x=" << point[0]/cm << " " ; |
---|
686 | cout << "y=" << point[1]/cm << " "; |
---|
687 | cout << "z=" << point[2]/cm << " "; |
---|
688 | cout << "phi=" << pC/deg << " "; |
---|
689 | cout << "r=" << tC/cm << " "; |
---|
690 | cout << "z=" << lC/cm << " "; |
---|
691 | cout << "dphi=" << dphi/deg << " "; |
---|
692 | cout << "dphir=" << dphi/rad << " "; |
---|
693 | cout << "lphi=" << (sign == 1 ? "+ " : "- ") << pLC/deg << " "; |
---|
694 | cout << "segment=" << segment << " "; |
---|
695 | cout << "Ip=" << Ip << " "; |
---|
696 | cout << "It=" << It << " "; |
---|
697 | cout << "Il=" << Il << " "; |
---|
698 | cout << "lBx=" << mfield[0]/gauss << " "; |
---|
699 | cout << "lBy=" << mfield[1]/gauss << " "; |
---|
700 | cout << "lBz=" << mfield[2]/gauss << " " ; |
---|
701 | cout << "rBx=" << rotpsfield[0]/gauss << " "; |
---|
702 | cout << "rBy=" << rotpsfield[1]/gauss << " "; |
---|
703 | cout << "rBz=" << rotpsfield[2]/gauss << endl; |
---|
704 | } |
---|
705 | } |
---|
706 | for(int i=0; i<3; i++) Field[i].push_back(-rotpsfield[i]); |
---|
707 | } |
---|
708 | |
---|
709 | |
---|
710 | // %%%%%%%%%%%%%%%%%% |
---|
711 | // Summing the Fields |
---|
712 | // %%%%%%%%%%%%%%%%%% |
---|
713 | for(int i=0; i<Field[0].size(); i++) |
---|
714 | for(int j=0; j<3; j++) |
---|
715 | Bfield[j] += Field[j][i]; |
---|
716 | |
---|
717 | if(MGN_VERBOSITY>5) |
---|
718 | { |
---|
719 | cout << hd_msg << " Total Field: coordinates (cm), magnetic field values (gauss):" << endl ; |
---|
720 | cout << " x=" << point[0]/cm << " " ; |
---|
721 | cout << "y=" << point[1]/cm << " "; |
---|
722 | cout << "z=" << point[2]/cm << " "; |
---|
723 | cout << "Bx=" << Bfield[0]/gauss << " "; |
---|
724 | cout << "By=" << Bfield[1]/gauss << " "; |
---|
725 | cout << "Bz=" << Bfield[2]/gauss << endl << endl; |
---|
726 | } |
---|
727 | |
---|
728 | } |
---|
729 | |
---|
730 | |
---|
731 | |
---|
732 | |
---|
733 | |
---|
734 | |
---|
735 | |
---|
736 | |
---|
737 | |
---|
738 | |
---|
739 | |
---|
740 | |
---|
741 | |
---|