Gabriele Cosmo
97 lines
3.7 KiB
C++
97 lines
3.7 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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// $Id: G4EnclosingCylinder.hh,v 1.8 2006/06/29 18:46:58 gunter Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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//
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//
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// --------------------------------------------------------------------
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// GEANT 4 class header file
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//
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// G4EnclosingCylinder
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//
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// Class description:
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//
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// Definition of a utility class for quickly deciding if a point
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// is clearly outside a polyhedra or polycone or deciding if
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// a trajectory is clearly going to miss those shapes.
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// Author:
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// David C. Williams (davidw@scipp.ucsc.edu)
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// --------------------------------------------------------------------
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#ifndef G4EnclosingCylinder_hh
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#define G4EnclosingCylinder_hh
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#include "G4Types.hh"
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#include "geomdefs.hh"
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#include "G4ThreeVector.hh"
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class G4ReduciblePolygon;
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class G4EnclosingCylinder
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{
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public: // with description
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G4EnclosingCylinder( const G4ReduciblePolygon *rz,
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G4bool phiIsOpen,
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G4double startPhi, G4double totalPhi );
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~G4EnclosingCylinder();
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G4bool MustBeOutside( const G4ThreeVector &p ) const;
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// Decide very rapidly if the point is outside the cylinder.
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// If one is not certain, return false.
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G4bool ShouldMiss( const G4ThreeVector &p, const G4ThreeVector &v ) const;
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// Decide very rapidly if the trajectory is going to miss the cylinder.
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// If one is not sure, return false.
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public: // without description
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G4EnclosingCylinder(__void__&);
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// Fake default constructor for usage restricted to direct object
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// persistency for clients requiring preallocation of memory for
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// persistifiable objects.
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protected:
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G4double radius; // radius of our cylinder
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G4double zLo, zHi; // z extent
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G4bool phiIsOpen; // true if there is a phi segment
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G4double startPhi, // for isPhiOpen==true, starting of phi segment
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totalPhi; // for isPhiOpen==true, size of phi segment
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G4double rx1, ry1,
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dx1, dy1;
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G4double rx2, ry2,
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dx2, dy2;
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G4bool concave; // true, if x/y cross section is concave
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};
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#endif
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