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geant4/source/graphics_reps/include/G4VisExtent.hh
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2016-06-09 14:55:03 +02:00

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//
// ********************************************************************
// * 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 *
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// * 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: G4VisExtent.hh,v 1.10 2006/06/29 19:06:24 gunter Exp $
// GEANT4 tag $Name: geant4-08-02 $
//
//
// A.Walkden 28/11/95
// Class Description:
// G4VisExtent defines a bounding box in a visualisable object's local
// coordinate system which includes the object.
// WARNING: it also attempts to support the concept of a bounding
// sphere. (This is used extensively in the G4 Visualisation System
// to calculate camera parameters, etc.) Be aware that this involves
// loss of information. Given a bounding box, one can calculate the
// bounding sphere; inverting this will produce a cube which *might*
// *not* include the object. E.g., a long thin object of length l
// will have a bounding sphere of diameter l; the corresponding cube
// will have side l/std::sqrt(3) so that the bounding sphere diameter is
// still l. Thus the long thin object will stick out of the cube.
// So, if you once use the concept of bounding sphere you must stick
// with it and abandon the concept of bounding box.
// Class Description - End:
#ifndef G4VISEXTENT_HH
#define G4VISEXTENT_HH
#include "globals.hh"
#include "G4Point3D.hh"
class G4VisExtent
{
public: // With description
G4VisExtent (G4double xmin = 0., G4double xmax = 0.,
G4double ymin = 0., G4double ymax = 0.,
G4double zmin = 0., G4double zmax = 0.);
G4VisExtent (const G4Point3D& centre, G4double radius);
~G4VisExtent ();
G4bool operator != (const G4VisExtent& e) const;
G4double GetXmin () const;
G4double GetXmax () const;
G4double GetYmin () const;
G4double GetYmax () const;
G4double GetZmin () const;
G4double GetZmax () const;
G4Point3D GetExtentCentre () const;
G4Point3D GetExtentCenter () const;
G4double GetExtentRadius () const;
void SetXmin (G4double xmin);
void SetXmax (G4double xmax);
void SetYmin (G4double ymin);
void SetYmax (G4double ymax);
void SetZmin (G4double zmin);
void SetZmax (G4double zmax);
friend std::ostream& operator << (std::ostream& os, const G4VisExtent& e);
static const G4VisExtent NullExtent;
private:
G4double fXmin, fXmax, fYmin, fYmax, fZmin, fZmax;
};
inline G4double G4VisExtent::GetXmin () const { return fXmin; }
inline G4double G4VisExtent::GetXmax () const { return fXmax; }
inline G4double G4VisExtent::GetYmin () const { return fYmin; }
inline G4double G4VisExtent::GetYmax () const { return fYmax; }
inline G4double G4VisExtent::GetZmin () const { return fZmin; }
inline G4double G4VisExtent::GetZmax () const { return fZmax; }
inline G4Point3D G4VisExtent::GetExtentCenter () const {
return GetExtentCentre ();
}
inline void G4VisExtent::SetXmin (G4double xmin) {fXmin = xmin;}
inline void G4VisExtent::SetXmax (G4double xmax) {fXmax = xmax;}
inline void G4VisExtent::SetYmin (G4double ymin) {fYmin = ymin;}
inline void G4VisExtent::SetYmax (G4double ymax) {fYmax = ymax;}
inline void G4VisExtent::SetZmin (G4double zmin) {fZmin = zmin;}
inline void G4VisExtent::SetZmax (G4double zmax) {fZmax = zmax;}
#endif