| 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 and of QinetiQ Ltd, *
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| 20 | // * subject to DEFCON 705 IPR conditions. *
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| 21 | // * By using, copying, modifying or distributing the software (or *
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| 22 | // * any work based on the software) you agree to acknowledge its *
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| 23 | // * use in resulting scientific publications, and indicate your *
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| 24 | // * acceptance of all terms of the Geant4 Software license. *
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| 25 | // ********************************************************************
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| 26 | //
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| 27 | // $Id: G4TriangularFacet.hh,v 1.8 2007/12/10 16:30:18 gunter Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $
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| 29 | //
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| 30 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 31 | //
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| 32 | // MODULE: G4TriangularFacet.hh
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| 33 | //
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| 34 | // Date: 15/06/2005
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| 35 | // Author: P R Truscott
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| 36 | // Organisation: QinetiQ Ltd, UK
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| 37 | // Customer: UK Ministry of Defence : RAO CRP TD Electronic Systems
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| 38 | // Contract: C/MAT/N03517
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| 39 | //
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| 40 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 41 | //
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| 42 | // CHANGE HISTORY
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| 43 | // --------------
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| 44 | //
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| 45 | // 31 October 2004, P R Truscott, QinetiQ Ltd, UK - Created.
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| 46 | //
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| 47 | // %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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| 48 | //
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| 49 | // Class description:
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| 50 | //
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| 51 | // The G4TriangularFacet class is used for the contruction of
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| 52 | // G4TessellatedSolid.
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| 53 | // It is defined by three vertices, which shall be supplied in anti-clockwise
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| 54 | // order looking from the outsider of the solid where it belongs.
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| 55 | // Its constructor:
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| 56 | //
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| 57 | // G4TriangularFacet (const G4ThreeVector Pt0, const G4ThreeVector vt1,
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| 58 | // const G4ThreeVector vt2, G4FacetVertexType);
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| 59 | //
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| 60 | // takes 4 parameters to define the three vertices:
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| 61 | // 1) G4FacetvertexType = "ABSOLUTE": in this case Pt0, vt1 and vt2 are
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| 62 | // the 3 vertices in anti-clockwise order looking from the outsider.
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| 63 | // 2) G4FacetvertexType = "RELATIVE": in this case the first vertex is Pt0,
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| 64 | // the second vertex is Pt0+vt1 and the third vertex is Pt0+vt2, all
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| 65 | // in anti-clockwise order when looking from the outsider.
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| 66 |
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| 67 | ///////////////////////////////////////////////////////////////////////////////
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| 68 | #ifndef G4TriangularFacet_hh
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| 69 | #define G4TriangularFacet_hh 1
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| 70 |
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| 71 | #include "globals.hh"
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| 72 | #include "G4VFacet.hh"
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| 73 | #include "G4ThreeVector.hh"
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| 74 | #include "G4TessellatedGeometryAlgorithms.hh"
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| 75 |
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| 76 | class G4TriangularFacet : public G4VFacet
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| 77 | {
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| 78 | public: // with description
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| 79 |
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| 80 | G4TriangularFacet (const G4ThreeVector Pt0, const G4ThreeVector vt1,
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| 81 | const G4ThreeVector vt2, G4FacetVertexType);
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| 82 | ~G4TriangularFacet ();
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| 83 |
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| 84 | G4TriangularFacet (const G4TriangularFacet &right);
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| 85 | const G4TriangularFacet &operator=(G4TriangularFacet &right);
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| 86 |
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| 87 | G4VFacet *GetClone ();
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| 88 | G4TriangularFacet *GetFlippedFacet ();
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| 89 |
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| 90 | G4ThreeVector Distance (const G4ThreeVector &p);
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| 91 | G4double Distance (const G4ThreeVector &p, const G4double minDist);
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| 92 | G4double Distance (const G4ThreeVector &p, const G4double minDist,
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| 93 | const G4bool outgoing);
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| 94 | G4double Extent (const G4ThreeVector axis);
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| 95 | G4bool Intersect (const G4ThreeVector &p, const G4ThreeVector &v,
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| 96 | const G4bool outgoing, G4double &distance,
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| 97 | G4double &distFromSurface, G4ThreeVector &normal);
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| 98 | G4double GetArea ();
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| 99 | G4ThreeVector GetPointOnFace () const;
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| 100 |
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| 101 | private:
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| 102 |
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| 103 | G4double a;
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| 104 | G4double b;
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| 105 | G4double c;
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| 106 | G4double det;
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| 107 |
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| 108 | G4double sMin, sMax;
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| 109 | G4double tMin;
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| 110 |
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| 111 | G4double sqrDist;
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| 112 |
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| 113 | G4TessellatedGeometryAlgorithms *tGeomAlg;
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| 114 | };
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| 115 |
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| 116 | #endif
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