Gabriele Cosmo
153 lines
5.1 KiB
C++
153 lines
5.1 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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// G4VoxelLimits
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//
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// Class description:
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//
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// Represents limitation/restrictions of space, where restrictions
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// are only made perpendicular to the cartesian axes.
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//
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// Member data:
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//
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// G4double fxAxisMin,fxAxisMax
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// G4double fyAxisMin,fyAxisMax
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// G4double fzAxisMin,fzAxisMax
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// - The min and max values along each axis. +-kInfinity if not restricted.
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// Author: Paul Kent (CERN), 13.07.1995 - Initial version.
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// --------------------------------------------------------------------
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#ifndef G4VOXELLIMITS_HH
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#define G4VOXELLIMITS_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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#include <assert.h>
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/**
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* @brief G4VoxelLimits represents limitation/restrictions of space, where
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* restrictions are only made perpendicular to the Cartesian axes.
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*/
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class G4VoxelLimits
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{
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public:
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/**
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* Default Constructor & Destructor.
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* Constructor initialises to be unlimited. Volume unrestricted.
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*/
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G4VoxelLimits() = default;
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~G4VoxelLimits() = default;
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/**
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* Restricts the volume to between specified min and max along the
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* given axis. Cartesian axes only, pMin<=pMax.
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*/
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void AddLimit(const EAxis pAxis, const G4double pMin, const G4double pMax);
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/**
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* Accessors for max extent
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*/
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G4double GetMaxXExtent() const;
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G4double GetMaxYExtent() const;
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G4double GetMaxZExtent() const;
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/**
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* Accessors for min extent
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*/
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G4double GetMinXExtent() const;
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G4double GetMinYExtent() const;
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G4double GetMinZExtent() const;
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/**
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* Accessors for the extent of the volume along the specified axis.
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*/
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G4double GetMaxExtent(const EAxis pAxis) const;
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G4double GetMinExtent(const EAxis pAxis) const;
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/**
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* Return true if the X/Y/Z axis is limited.
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*/
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G4bool IsXLimited() const;
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G4bool IsYLimited() const;
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G4bool IsZLimited() const;
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/**
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* Return true if limited along any axis.
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*/
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G4bool IsLimited() const;
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/**
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* Return true if the specified axis is restricted/limited.
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*/
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G4bool IsLimited(const EAxis pAxis) const;
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/**
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* Clips the line segment pStart->pEnd to the volume described by the
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* current limits. Returns true if the line remains after clipping,
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* else false, and leaves the vectors in an undefined state.
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*/
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G4bool ClipToLimits(G4ThreeVector& pStart, G4ThreeVector& pEnd) const;
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/**
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* Returns true if the specified vector is inside/on boundaries of limits.
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*/
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G4bool Inside(const G4ThreeVector& pVec) const;
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/**
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* Calculates the 'outcode' for the specified vector.
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* Intended for use during clipping against the limits.
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* The bits are set given the following conditions:
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* 0 pVec.x()<fxAxisMin && IsXLimited()
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* 1 pVec.x()>fxAxisMax && IsXLimited()
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* 2 pVec.y()<fyAxisMin && IsYLimited()
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* 3 pVec.y()>fyAxisMax && IsYLimited()
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* 4 pVec.z()<fzAxisMin && IsZLimited()
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* 5 pVec.z()>fzAxisMax && IsZLimited()
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*/
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G4int OutCode(const G4ThreeVector& pVec) const;
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private:
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G4double fxAxisMin = -kInfinity, fxAxisMax = kInfinity;
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G4double fyAxisMin = -kInfinity, fyAxisMax = kInfinity;
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G4double fzAxisMin = -kInfinity, fzAxisMax = kInfinity;
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};
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/**
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* Prints the limits to the stream in the form:
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* "{(xmin,xmax) (ymin,ymax) (zmin,zmax)}"
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* Replaces (xmin,xmax) by (-,-) when not limited.
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*/
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std::ostream& operator << (std::ostream& os, const G4VoxelLimits& pLim);
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#include "G4VoxelLimits.icc"
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#endif
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