Gabriele Cosmo
114 lines
4.9 KiB
C++
114 lines
4.9 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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// $Id$
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//
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//
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// A.Walkden 28/11/95
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// Class Description:
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// G4VisExtent defines a bounding box in a visualisable object's local
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// coordinate system which includes the object.
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// WARNING: it also attempts to support the concept of a bounding
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// sphere. (This is used extensively in the G4 Visualisation System
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// to calculate camera parameters, etc.) Be aware that this involves
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// loss of information. Given a bounding box, one can calculate the
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// bounding sphere; inverting this will produce a cube which *might*
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// *not* include the object. E.g., a long thin object of length l
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// will have a bounding sphere of diameter l; the corresponding cube
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// will have side l/std::sqrt(3) so that the bounding sphere diameter is
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// still l. Thus the long thin object will stick out of the cube.
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// So, if you once use the concept of bounding sphere you must stick
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// with it and abandon the concept of bounding box.
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// Class Description - End:
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#ifndef G4VISEXTENT_HH
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#define G4VISEXTENT_HH
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#include "globals.hh"
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#include "G4Point3D.hh"
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class G4VisExtent
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{
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public: // With description
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G4VisExtent (G4double xmin = 0., G4double xmax = 0.,
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G4double ymin = 0., G4double ymax = 0.,
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G4double zmin = 0., G4double zmax = 0.);
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G4VisExtent (const G4Point3D& centre, G4double radius);
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~G4VisExtent ();
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G4bool operator != (const G4VisExtent& e) const;
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G4double GetXmin () const;
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G4double GetXmax () const;
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G4double GetYmin () const;
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G4double GetYmax () const;
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G4double GetZmin () const;
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G4double GetZmax () const;
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const G4Point3D& GetExtentCentre () const;
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const G4Point3D& GetExtentCenter () const;
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G4double GetExtentRadius () const;
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void SetXmin (G4double xmin);
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void SetXmax (G4double xmax);
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void SetYmin (G4double ymin);
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void SetYmax (G4double ymax);
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void SetZmin (G4double zmin);
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void SetZmax (G4double zmax);
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friend std::ostream& operator << (std::ostream& os, const G4VisExtent& e);
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static const G4VisExtent NullExtent;
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private:
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G4double fXmin, fXmax, fYmin, fYmax, fZmin, fZmax;
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mutable G4bool fRadiusCached, fCentreCached;
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mutable G4double fRadius;
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mutable G4Point3D fCentre;
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};
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inline G4double G4VisExtent::GetXmin () const { return fXmin; }
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inline G4double G4VisExtent::GetXmax () const { return fXmax; }
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inline G4double G4VisExtent::GetYmin () const { return fYmin; }
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inline G4double G4VisExtent::GetYmax () const { return fYmax; }
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inline G4double G4VisExtent::GetZmin () const { return fZmin; }
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inline G4double G4VisExtent::GetZmax () const { return fZmax; }
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inline const G4Point3D& G4VisExtent::GetExtentCenter () const {
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return GetExtentCentre ();
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}
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inline void G4VisExtent::SetXmin (G4double xmin)
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{fXmin = xmin; fRadiusCached = false; fCentreCached = false;}
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inline void G4VisExtent::SetXmax (G4double xmax)
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{fXmax = xmax; fRadiusCached = false; fCentreCached = false;}
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inline void G4VisExtent::SetYmin (G4double ymin)
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{fYmin = ymin; fRadiusCached = false; fCentreCached = false;}
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inline void G4VisExtent::SetYmax (G4double ymax)
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{fYmax = ymax; fRadiusCached = false; fCentreCached = false;}
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inline void G4VisExtent::SetZmin (G4double zmin)
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{fZmin = zmin; fRadiusCached = false; fCentreCached = false;}
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inline void G4VisExtent::SetZmax (G4double zmax)
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{fZmax = zmax; fRadiusCached = false; fCentreCached = false;}
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#endif
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