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: G4EnclosingCylinder.hh,v 1.8 2006/06/29 18:46:58 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $ |
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29 | // |
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30 | // |
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31 | // -------------------------------------------------------------------- |
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32 | // GEANT 4 class header file |
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33 | // |
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34 | // G4EnclosingCylinder |
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35 | // |
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36 | // Class description: |
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37 | // |
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38 | // Definition of a utility class for quickly deciding if a point |
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39 | // is clearly outside a polyhedra or polycone or deciding if |
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40 | // a trajectory is clearly going to miss those shapes. |
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41 | |
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42 | // Author: |
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43 | // David C. Williams (davidw@scipp.ucsc.edu) |
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44 | // -------------------------------------------------------------------- |
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45 | #ifndef G4EnclosingCylinder_hh |
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46 | #define G4EnclosingCylinder_hh |
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47 | |
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48 | #include "G4Types.hh" |
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49 | #include "geomdefs.hh" |
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50 | #include "G4ThreeVector.hh" |
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51 | |
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52 | class G4ReduciblePolygon; |
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53 | |
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54 | class G4EnclosingCylinder |
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55 | { |
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56 | public: // with description |
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57 | |
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58 | G4EnclosingCylinder( const G4ReduciblePolygon *rz, |
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59 | G4bool phiIsOpen, |
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60 | G4double startPhi, G4double totalPhi ); |
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61 | ~G4EnclosingCylinder(); |
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62 | |
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63 | G4bool MustBeOutside( const G4ThreeVector &p ) const; |
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64 | // Decide very rapidly if the point is outside the cylinder. |
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65 | // If one is not certain, return false. |
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66 | |
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67 | G4bool ShouldMiss( const G4ThreeVector &p, const G4ThreeVector &v ) const; |
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68 | // Decide very rapidly if the trajectory is going to miss the cylinder. |
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69 | // If one is not sure, return false. |
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70 | |
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71 | public: // without description |
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72 | |
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73 | G4EnclosingCylinder(__void__&); |
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74 | // Fake default constructor for usage restricted to direct object |
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75 | // persistency for clients requiring preallocation of memory for |
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76 | // persistifiable objects. |
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77 | |
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78 | protected: |
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79 | |
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80 | G4double radius; // radius of our cylinder |
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81 | G4double zLo, zHi; // z extent |
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82 | |
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83 | G4bool phiIsOpen; // true if there is a phi segment |
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84 | G4double startPhi, // for isPhiOpen==true, starting of phi segment |
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85 | totalPhi; // for isPhiOpen==true, size of phi segment |
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86 | |
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87 | G4double rx1, ry1, |
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88 | dx1, dy1; |
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89 | G4double rx2, ry2, |
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90 | dx2, dy2; |
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91 | |
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92 | G4bool concave; // true, if x/y cross section is concave |
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93 | |
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94 | }; |
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95 | |
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96 | #endif |
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