| 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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| 27 | // $Id: ApproxEqual.hh,v 1.4 2006/06/29 18:49:38 gunter Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-04-ref-00 $
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| 29 | //
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| 30 |
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| 31 | // ApproxEqual Functions for geometry test programs
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| 32 | //
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| 33 | // History:
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| 34 | // 20.07.95 P.Kent Translated from old code
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| 35 |
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| 36 | #ifndef APPROXEQUAL_HH
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| 37 | #define APPROXEQUAL_HH
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| 38 |
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| 39 | #include "globals.hh"
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| 40 | #include "geomdefs.hh"
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| 41 |
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| 42 | #include "G4ThreeVector.hh"
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| 43 | #include "G4AffineTransform.hh"
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| 44 |
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| 45 | const G4double kApproxEqualTolerance = 1E-6;
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| 46 |
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| 47 | // Return true if the double check is approximately equal to target
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| 48 | //
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| 49 | // Process:
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| 50 | //
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| 51 | // Return true is check if less than kApproxEqualTolerance from target
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| 52 |
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| 53 | G4bool ApproxEqual(const G4double check,const G4double target)
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| 54 | {
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| 55 | return (std::fabs(check-target)<kApproxEqualTolerance) ?true:false;
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| 56 | }
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| 57 |
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| 58 | // Return true if the 3vector check is approximately equal to target
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| 59 | G4bool ApproxEqual(const G4ThreeVector& check, const G4ThreeVector& target)
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| 60 | {
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| 61 | return (ApproxEqual(check.x(),target.x())&&
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| 62 | ApproxEqual(check.y(),target.y())&&
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| 63 | ApproxEqual(check.z(),target.z())) ? true : false;
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| 64 | }
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| 65 |
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| 66 |
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| 67 | G4bool ApproxEqual(const G4AffineTransform &tf1,
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| 68 | const G4AffineTransform &tf2)
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| 69 | {
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| 70 | for (G4int i=0;i<15;i++)
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| 71 | {
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| 72 | if (!ApproxEqual(tf1[i],tf2[i])) return false;
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| 73 | }
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| 74 | return true;
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| 75 | }
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| 76 |
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| 77 | #endif
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| 78 |
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