Gabriele Cosmo
125 lines
4.7 KiB
C++
125 lines
4.7 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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// G4ErrorCylSurfaceTarget
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//
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// Class Description:
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//
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// Limits step when track reaches a cylindrical surface.
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// Author: Pedro Arce (CIEMAT), September 2004
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// --------------------------------------------------------------------
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#ifndef G4ERRORCYLSURFACETARGET_HH
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#define G4ERRORCYLSURFACETARGET_HH
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#include "globals.hh"
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#include "G4ErrorSurfaceTarget.hh"
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#include "G4ThreeVector.hh"
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#include "G4RotationMatrix.hh"
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#include "G4AffineTransform.hh"
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#include "G4Plane3D.hh"
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/**
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* @brief G4ErrorCylSurfaceTarget is a utility class for limiting
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* the step when a track reaches a cylindrical surface.
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*/
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class G4ErrorCylSurfaceTarget : public G4ErrorSurfaceTarget
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{
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public:
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/**
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* Constructor for G4ErrorCylSurfaceTarget. It constructs a cylindrical
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* surface by radius, translation and rotation.
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* @param[in] radius Cylinder radius.
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* @param[in] trans Translation vector.
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* @param[in] rotm Rotation matrix.
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*/
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G4ErrorCylSurfaceTarget( const G4double& radius,
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const G4ThreeVector& trans = G4ThreeVector(),
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const G4RotationMatrix& rotm = G4RotationMatrix() );
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/**
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* Constructor for G4ErrorCylSurfaceTarget. It constructs a cylindrical
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* surface by radius and affine transformation.
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* @param[in] radius Cylinder radius.
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* @param[in] trans The affine transformation in input.
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*/
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G4ErrorCylSurfaceTarget( const G4double& radius,
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const G4AffineTransform& trans );
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/**
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* Default Destructor.
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*/
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~G4ErrorCylSurfaceTarget() override = default;
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/**
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* Intersects the cylindrical surface with the line in local (cylinder)
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* coordinates, given by point and direction.
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* @param[in] point The point of reference.
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* @param[in] direc The direction vector.
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* @returns The intersection point.
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*/
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G4ThreeVector IntersectLocal( const G4ThreeVector& point,
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const G4ThreeVector& direc ) const;
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/**
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* Computes the distance from a point to the cylindrical surface in a
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* given direction.
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* @param[in] point The point of reference.
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* @param[in] direc The direction vector.
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* @returns The distance value.
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*/
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G4double GetDistanceFromPoint( const G4ThreeVector& point,
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const G4ThreeVector& direc ) const override;
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/**
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* Computes the minimal distance from a point to the cylindrical surface
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* in any direction.
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* @param[in] point The point of reference.
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* @returns The distance value.
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*/
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G4double GetDistanceFromPoint( const G4ThreeVector& point ) const override;
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/**
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* Computes the plane tangent to cylindrical surface at a given point.
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* @param[in] point The point of reference.
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* @returns The tangent plane.
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*/
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G4Plane3D GetTangentPlane( const G4ThreeVector& point ) const override;
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/**
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* Dumps to standard output the cylindrical surface parameters.
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*/
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void Dump( const G4String& msg ) const override;
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private:
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G4double fradius;
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G4AffineTransform ftransform;
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};
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#endif
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