Gabriele Cosmo
99 lines
4.0 KiB
C++
99 lines
4.0 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
//
|
|
// $Id: G4GeometryTolerance.hh 96427 2016-04-14 09:37:29Z gcosmo $
|
|
//
|
|
// --------------------------------------------------------------------
|
|
// GEANT 4 class header file
|
|
//
|
|
// Class Description:
|
|
//
|
|
// A singleton class for computation and storage of the tolerance values
|
|
// used by the geometry modeler for precision on boundaries.
|
|
// The Cartesian tolerance defines the thickness of the surface of the
|
|
// geometrical shapes for their inner funtions and for the tracking. The
|
|
// tolerance must be greater than the largest mathematical error from the
|
|
// shape distance calculation functions. The tolerance is centred on the
|
|
// surface, e.g. the Inside() method of a solid uses a tolerance dx +/- kTol/2.
|
|
// The Cartesian tolerance can either be set to a fixed value (1E-9 mm)
|
|
// or to a value computed on the basis of the maximum extent of the
|
|
// world volume assigned through the G4GeometryManager at the beginning
|
|
// of the application -before- any geometrical object is created.
|
|
|
|
// ---------------- G4GeometryTolerance ----------------
|
|
//
|
|
// Author: G.Cosmo (CERN), October 2006
|
|
// ------------------------------------------------------------
|
|
|
|
#ifndef G4GeometryTolerance_hh
|
|
#define G4GeometryTolerance_hh
|
|
|
|
#include "G4Types.hh"
|
|
|
|
class G4GeometryTolerance
|
|
{
|
|
friend class G4GeometryManager;
|
|
|
|
public: // with description
|
|
|
|
static G4GeometryTolerance* GetInstance();
|
|
// Get a pointer to the unique G4GeometryTolerance,
|
|
// creating it if necessary and setting the tolerances.
|
|
G4double GetSurfaceTolerance() const;
|
|
// Returns the current Cartesian tolerance of a surface.
|
|
G4double GetAngularTolerance() const;
|
|
// Returns the current angular tolerance.
|
|
G4double GetRadialTolerance() const;
|
|
// Returns the current radial tolerance.
|
|
|
|
public: // without description
|
|
|
|
~G4GeometryTolerance();
|
|
// Destructor.
|
|
|
|
protected:
|
|
|
|
void SetSurfaceTolerance(G4double worldExtent);
|
|
// Sets the Cartesian and Radial surface tolerance to a value computed
|
|
// from the maximum extent of the world volume. This method
|
|
// can be called only once, and is done only through the
|
|
// G4GeometryManager class.
|
|
|
|
G4GeometryTolerance();
|
|
// Protected constructor.
|
|
|
|
private:
|
|
|
|
static G4ThreadLocal G4GeometryTolerance* fpInstance;
|
|
G4double fCarTolerance;
|
|
G4double fAngTolerance;
|
|
G4double fRadTolerance;
|
|
G4bool fInitialised;
|
|
};
|
|
|
|
#endif // G4GeometryTolerance_hh
|
|
|