source: trunk/source/graphics_reps/include/G4VisExtent.hh@ 1136

Last change on this file since 1136 was 1058, checked in by garnier, 17 years ago

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[830]1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
9// * include a list of copyright holders. *
10// * *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work make any representation or warranty, express or implied, *
14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
23// * acceptance of all terms of the Geant4 Software license. *
24// ********************************************************************
25//
26//
27// $Id: G4VisExtent.hh,v 1.10 2006/06/29 19:06:24 gunter Exp $
[1058]28// GEANT4 tag $Name: geant4-09-02-ref-02 $
[830]29//
30//
31// A.Walkden 28/11/95
32
33// Class Description:
34// G4VisExtent defines a bounding box in a visualisable object's local
35// coordinate system which includes the object.
36// WARNING: it also attempts to support the concept of a bounding
37// sphere. (This is used extensively in the G4 Visualisation System
38// to calculate camera parameters, etc.) Be aware that this involves
39// loss of information. Given a bounding box, one can calculate the
40// bounding sphere; inverting this will produce a cube which *might*
41// *not* include the object. E.g., a long thin object of length l
42// will have a bounding sphere of diameter l; the corresponding cube
43// will have side l/std::sqrt(3) so that the bounding sphere diameter is
44// still l. Thus the long thin object will stick out of the cube.
45// So, if you once use the concept of bounding sphere you must stick
46// with it and abandon the concept of bounding box.
47// Class Description - End:
48
49#ifndef G4VISEXTENT_HH
50#define G4VISEXTENT_HH
51
52#include "globals.hh"
53#include "G4Point3D.hh"
54
55class G4VisExtent
56{
57public: // With description
58
59 G4VisExtent (G4double xmin = 0., G4double xmax = 0.,
60 G4double ymin = 0., G4double ymax = 0.,
61 G4double zmin = 0., G4double zmax = 0.);
62 G4VisExtent (const G4Point3D& centre, G4double radius);
63 ~G4VisExtent ();
64 G4bool operator != (const G4VisExtent& e) const;
65 G4double GetXmin () const;
66 G4double GetXmax () const;
67 G4double GetYmin () const;
68 G4double GetYmax () const;
69 G4double GetZmin () const;
70 G4double GetZmax () const;
71 G4Point3D GetExtentCentre () const;
72 G4Point3D GetExtentCenter () const;
73 G4double GetExtentRadius () const;
74 void SetXmin (G4double xmin);
75 void SetXmax (G4double xmax);
76 void SetYmin (G4double ymin);
77 void SetYmax (G4double ymax);
78 void SetZmin (G4double zmin);
79 void SetZmax (G4double zmax);
80 friend std::ostream& operator << (std::ostream& os, const G4VisExtent& e);
81 static const G4VisExtent NullExtent;
82
83private:
84 G4double fXmin, fXmax, fYmin, fYmax, fZmin, fZmax;
85};
86
87inline G4double G4VisExtent::GetXmin () const { return fXmin; }
88inline G4double G4VisExtent::GetXmax () const { return fXmax; }
89inline G4double G4VisExtent::GetYmin () const { return fYmin; }
90inline G4double G4VisExtent::GetYmax () const { return fYmax; }
91inline G4double G4VisExtent::GetZmin () const { return fZmin; }
92inline G4double G4VisExtent::GetZmax () const { return fZmax; }
93
94inline G4Point3D G4VisExtent::GetExtentCenter () const {
95 return GetExtentCentre ();
96}
97
98inline void G4VisExtent::SetXmin (G4double xmin) {fXmin = xmin;}
99inline void G4VisExtent::SetXmax (G4double xmax) {fXmax = xmax;}
100inline void G4VisExtent::SetYmin (G4double ymin) {fYmin = ymin;}
101inline void G4VisExtent::SetYmax (G4double ymax) {fYmax = ymax;}
102inline void G4VisExtent::SetZmin (G4double zmin) {fZmin = zmin;}
103inline void G4VisExtent::SetZmax (G4double zmax) {fZmax = zmax;}
104
105#endif
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