Gabriele Cosmo
105 lines
3.5 KiB
C++
105 lines
3.5 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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// G4LineSection
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//
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// Class description:
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//
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// A utility class that calculates the distance of a point from a
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// line section.
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// Author: John Apostolakis (CERN), 1999
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// --------------------------------------------------------------------
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#ifndef G4LineSection_hh
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#define G4LineSection_hh
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#include "G4Types.hh"
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#include "G4ThreeVector.hh"
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/**
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* @brief G4LineSection is a utility class that calculates the distance
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* of a point from a line section.
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*/
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class G4LineSection
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{
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public:
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/**
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* Constructor for G4LineSection.
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* @param[in] PntA Coordinates of point A defining the line.
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* @param[in] PntB Coordinates of point B defining the line.
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*/
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G4LineSection( const G4ThreeVector& PntA,
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const G4ThreeVector& PntB );
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/**
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* Default Destructor.
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*/
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~G4LineSection() = default;
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/**
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* Returns the distance of point 'OtherPnt' from the line.
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*/
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G4double Dist( const G4ThreeVector& OtherPnt ) const;
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/**
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* Returns the distance squared.
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*/
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inline G4double GetABdistanceSq() const;
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/**
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* Defines line and returns the distance of point 'OtherPnt' from it.
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*/
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inline static G4double Distline( const G4ThreeVector& OtherPnt,
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const G4ThreeVector& LinePntA,
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const G4ThreeVector& LinePntB );
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private:
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G4ThreeVector EndpointA;
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G4ThreeVector VecAtoB;
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G4double fABdistanceSq = 0.0;
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};
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// Inline methods implementations
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inline
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G4double G4LineSection::GetABdistanceSq() const
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{
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return fABdistanceSq;
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}
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inline
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G4double G4LineSection::Distline( const G4ThreeVector& OtherPnt,
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const G4ThreeVector& LinePntA,
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const G4ThreeVector& LinePntB )
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{
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G4LineSection LineAB( LinePntA, LinePntB ); // Line from A to B
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return LineAB.Dist( OtherPnt );
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}
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#endif
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