[818] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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[1228] | 27 | // $Id: G4GDMLEvaluator.cc,v 1.23 2009/04/24 15:34:20 gcosmo Exp $ |
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[818] | 28 | // GEANT4 tag $ Name:$ |
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| 29 | // |
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| 30 | // class G4GDMLEvaluator Implementation |
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| 31 | // |
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| 32 | // Original author: Zoltan Torzsok, November 2007 |
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| 33 | // |
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| 34 | // -------------------------------------------------------------------- |
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| 35 | |
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[850] | 36 | #include <sstream> |
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[1228] | 37 | |
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| 38 | #include "globals.hh" |
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| 39 | |
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[818] | 40 | #include "G4GDMLEvaluator.hh" |
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| 41 | |
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[850] | 42 | G4GDMLEvaluator::G4GDMLEvaluator() |
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| 43 | { |
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[818] | 44 | eval.clear(); |
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| 45 | eval.setStdMath(); |
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[850] | 46 | eval.setSystemOfUnits(meter,kilogram,second,ampere,kelvin,mole,candela); |
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[818] | 47 | } |
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| 48 | |
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[850] | 49 | void G4GDMLEvaluator::DefineConstant(const G4String& name, G4double value) |
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| 50 | { |
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| 51 | if (eval.findVariable(name)) |
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| 52 | { |
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| 53 | G4String error_msg = "Redefinition of constant or variable: "+name; |
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| 54 | G4Exception("G4GDMLEvaluator::DefineConstant()", "InvalidExpression", |
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| 55 | FatalException, error_msg); |
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| 56 | } |
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| 57 | eval.setVariable(name.c_str(),value); |
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| 58 | } |
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[818] | 59 | |
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[850] | 60 | void G4GDMLEvaluator::DefineVariable(const G4String& name,G4double value) |
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| 61 | { |
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| 62 | if (eval.findVariable(name)) |
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| 63 | { |
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| 64 | G4String error_msg = "Redefinition of constant or variable: "+name; |
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| 65 | G4Exception("G4GDMLEvaluator::DefineVariable()", "InvalidExpression", |
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| 66 | FatalException, error_msg); |
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| 67 | } |
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[818] | 68 | eval.setVariable(name.c_str(),value); |
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[850] | 69 | variableList.push_back(name); |
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[818] | 70 | } |
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| 71 | |
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[850] | 72 | void G4GDMLEvaluator::DefineMatrix(const G4String& name, |
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| 73 | G4int coldim, |
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| 74 | std::vector<G4double> valueList) |
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| 75 | { |
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| 76 | const G4int size = valueList.size(); |
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[818] | 77 | |
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[850] | 78 | if (size == 0) |
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| 79 | { |
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| 80 | G4String error_msg = "Matrix '"+name+"' is empty!"; |
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| 81 | G4Exception("G4GDMLEvaluator::DefineMatrix()", "InvalidSize", |
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| 82 | FatalException, error_msg); |
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| 83 | } |
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| 84 | if (size == 1) |
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| 85 | { |
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| 86 | G4String error_msg = "Matrix '" + name |
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| 87 | + "' has only one element! " |
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| 88 | + "Define a constant instead!!"; |
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| 89 | G4Exception("G4GDMLEvaluator::DefineMatrix()", "InvalidSize", |
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| 90 | FatalException, error_msg); |
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| 91 | } |
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| 92 | if (size % coldim != 0) |
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| 93 | { |
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| 94 | G4String error_msg = "Matrix '" + name + "' is not filled correctly!"; |
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| 95 | G4Exception("G4GDMLEvaluator::DefineMatrix()", "InvalidSize", |
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| 96 | FatalException, error_msg); |
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| 97 | } |
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[818] | 98 | |
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[850] | 99 | if ((size == coldim) || (coldim == 1)) // Row- or column matrix |
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| 100 | { |
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| 101 | for (G4int i=0;i<size;i++) |
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| 102 | { |
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| 103 | std::stringstream MatrixElementNameStream; |
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| 104 | MatrixElementNameStream << name << "_" << i; |
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| 105 | DefineConstant(MatrixElementNameStream.str(),valueList[i]); |
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| 106 | } |
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| 107 | } |
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| 108 | else // Normal matrix |
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| 109 | { |
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| 110 | const G4int rowdim = size/coldim; |
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| 111 | |
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| 112 | for (G4int i=0;i<rowdim;i++) |
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| 113 | { |
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| 114 | for (G4int j=0;j<coldim;j++) |
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| 115 | { |
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| 116 | std::stringstream MatrixElementNameStream; |
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| 117 | MatrixElementNameStream << name << "_" << i << "_" << j; |
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| 118 | DefineConstant(MatrixElementNameStream.str(),valueList[coldim*i+j]); |
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| 119 | } |
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| 120 | } |
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| 121 | } |
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| 122 | } |
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| 123 | |
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| 124 | void G4GDMLEvaluator::SetVariable(const G4String& name, G4double value) |
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| 125 | { |
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| 126 | if (!IsVariable(name)) |
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| 127 | { |
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| 128 | G4String error_msg = "Variable '" + name + "' is not defined!"; |
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| 129 | G4Exception("G4GDMLEvaluator::SetVariable()", "InvalidSetup", |
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| 130 | FatalException, error_msg); |
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| 131 | } |
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[818] | 132 | eval.setVariable(name.c_str(),value); |
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| 133 | } |
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| 134 | |
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[850] | 135 | G4bool G4GDMLEvaluator::IsVariable(const G4String& name) const |
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| 136 | { |
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| 137 | const size_t variableCount = variableList.size(); |
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[818] | 138 | |
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[850] | 139 | for (size_t i=0;i<variableCount;i++) |
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| 140 | { |
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| 141 | if (variableList[i] == name) { return true; } |
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| 142 | } |
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[818] | 143 | |
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[850] | 144 | return false; |
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[818] | 145 | } |
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| 146 | |
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[850] | 147 | G4String G4GDMLEvaluator::SolveBrackets(const G4String& in) |
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| 148 | { |
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[987] | 149 | std::string::size_type full = in.size(); |
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| 150 | std::string::size_type open = in.find("[",0); |
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| 151 | std::string::size_type close = in.find("]",0); |
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[818] | 152 | |
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[850] | 153 | if (open==close) { return in; } |
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[818] | 154 | |
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[850] | 155 | if (open>close) |
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| 156 | { |
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| 157 | G4String error_msg = "Bracket mismatch: " + in; |
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| 158 | G4Exception("G4GDMLEvaluator::SolveBrackets()", "InvalidExpression", |
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| 159 | FatalException, error_msg); |
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[818] | 160 | } |
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| 161 | |
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[850] | 162 | std::string::size_type begin = open; |
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| 163 | std::string::size_type end = 0; |
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[987] | 164 | std::string::size_type end1 = 0; |
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[850] | 165 | std::string out; |
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| 166 | out.append(in,0,open); |
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[987] | 167 | |
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| 168 | do // Loop for all possible matrix elements in 'in' |
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[850] | 169 | { |
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[987] | 170 | do // SolveBrackets for one matrix element |
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| 171 | { |
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| 172 | end = in.find(",",begin+1); |
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| 173 | end1= in.find("]",begin+1); |
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| 174 | if (end>end1) { end = end1; } |
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| 175 | if (end==std::string::npos) { end = close;} |
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| 176 | |
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| 177 | std::stringstream indexStream; |
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| 178 | indexStream << "_" << EvaluateInteger(in.substr(begin+1,end-begin-1))-1; |
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[850] | 179 | |
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[987] | 180 | out.append(indexStream.str()); |
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[850] | 181 | |
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[987] | 182 | begin = end; |
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[850] | 183 | |
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[987] | 184 | } while (end<close); |
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| 185 | |
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| 186 | if (full==close) { return out; } |
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| 187 | |
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| 188 | open = in.find("[",begin); |
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| 189 | close = in.find("]",begin+1); |
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[850] | 190 | |
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[987] | 191 | if (open==close) { out.append(in.substr(end+1,full-end-1)); return out; } |
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| 192 | out.append(in.substr(end+1,open-end-1)); |
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[850] | 193 | |
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[987] | 194 | begin=open; |
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| 195 | |
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| 196 | } while (close<full); |
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| 197 | |
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[850] | 198 | return out; |
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[818] | 199 | } |
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| 200 | |
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[850] | 201 | G4double G4GDMLEvaluator::Evaluate(const G4String& in) |
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| 202 | { |
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| 203 | G4String expression = SolveBrackets(in); |
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[818] | 204 | |
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| 205 | G4double value = 0.0; |
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| 206 | |
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[850] | 207 | if (!expression.empty()) |
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| 208 | { |
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[818] | 209 | value = eval.evaluate(expression.c_str()); |
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| 210 | |
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[850] | 211 | if (eval.status() != HepTool::Evaluator::OK) |
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| 212 | { |
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[818] | 213 | eval.print_error(); |
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[850] | 214 | G4String error_msg = "Error in expression: " + expression; |
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| 215 | G4Exception("G4GDMLEvaluator::Evaluate()", "InvalidExpression", |
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| 216 | FatalException, error_msg); |
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[818] | 217 | } |
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| 218 | } |
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| 219 | return value; |
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| 220 | } |
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| 221 | |
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[850] | 222 | G4int G4GDMLEvaluator::EvaluateInteger(const G4String& expression) |
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| 223 | { |
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| 224 | // This function is for evaluating integer expressions, |
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| 225 | // like loop variables and matrix indices. |
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| 226 | // Complains if the evaluated expression has a fractional |
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| 227 | // part different from zero |
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[818] | 228 | |
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| 229 | G4double value = Evaluate(expression); |
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| 230 | |
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| 231 | G4int whole = (G4int)value; |
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| 232 | G4double frac = value - (G4double)whole; |
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| 233 | |
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[850] | 234 | if (frac != 0.0) |
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| 235 | { |
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| 236 | G4String error_msg = "Expression '" + expression |
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| 237 | + "' is expected to have an integer value!"; |
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| 238 | G4Exception("G4GDMLEvaluator::EvaluateInteger()", "InvalidExpression", |
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| 239 | FatalException, error_msg); |
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| 240 | } |
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[818] | 241 | return whole; |
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| 242 | } |
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[850] | 243 | |
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| 244 | G4double G4GDMLEvaluator::GetConstant(const G4String& name) |
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| 245 | { |
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| 246 | if (IsVariable(name)) |
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| 247 | { |
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| 248 | G4String error_msg = "Constant '" + name |
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| 249 | + "' is not defined! It is a variable!"; |
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| 250 | G4Exception("G4GDMLEvaluator::GetConstant()", "InvalidSetup", |
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| 251 | FatalException, error_msg); |
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| 252 | } |
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| 253 | if (!eval.findVariable(name)) |
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| 254 | { |
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| 255 | G4String error_msg = "Constant '" + name + "' is not defined!"; |
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| 256 | G4Exception("G4GDMLEvaluator::GetConstant()", "InvalidSetup", |
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| 257 | FatalException, error_msg); |
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| 258 | } |
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| 259 | return Evaluate(name); |
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| 260 | } |
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| 261 | |
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| 262 | G4double G4GDMLEvaluator::GetVariable(const G4String& name) |
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| 263 | { |
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| 264 | if (!IsVariable(name)) |
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| 265 | { |
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| 266 | G4String error_msg = "Variable '" + name + "' is not a defined!"; |
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| 267 | G4Exception("G4GDMLEvaluator::GetVariable()", "InvalidSetup", |
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| 268 | FatalException, error_msg); |
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| 269 | } |
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| 270 | return Evaluate(name); |
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| 271 | } |
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