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geant4/source/graphics_reps/src/G4VisExtent.cc
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2016-06-01 15:25:35 +02:00

69 lines
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C++

// This code implementation is the intellectual property of
// the RD44 GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4VisExtent.cc,v 2.2 1998/08/22 16:20:43 allison Exp $
// GEANT4 tag $Name: geant4-00 $
//
//
// A.Walkden 28/11/95
// G4VisExtent.cc - to return parameters useful to the drawing window
// employed by Visualization code.
#include "G4VisExtent.hh"
#include "G4ios.hh"
G4VisExtent::G4VisExtent (G4double xmin, G4double xmax,
G4double ymin, G4double ymax,
G4double zmin, G4double zmax)
:fXmin(xmin), fXmax(xmax), fYmin(ymin), fYmax(ymax), fZmin(zmin), fZmax(zmax)
{}
G4VisExtent::G4VisExtent (const G4Point3D& centre, G4double radius) {
// Use inscribed radius to define G3VisExtent so that
// GetExtentRadius gets radius back again. The one is the "inverse"
// of the other, so to speak.
G4double inscribedRadius = radius / sqrt (3.);
fXmin = centre.x () - inscribedRadius;
fXmax = centre.x () + inscribedRadius;
fYmin = centre.y () - inscribedRadius;
fYmax = centre.y () + inscribedRadius;
fZmin = centre.z () - inscribedRadius;
fZmax = centre.z () + inscribedRadius;
}
G4VisExtent::~G4VisExtent () {}
G4Point3D G4VisExtent::GetExtentCentre () const {
return G4Point3D (((fXmin + fXmax) / 2.),
((fYmin + fYmax) / 2.),
((fZmin + fZmax) / 2.));
}
G4double G4VisExtent::GetExtentRadius () const {
return sqrt (((fXmax - fXmin) * (fXmax - fXmin)) +
((fYmax - fYmin) * (fYmax - fYmin)) +
((fZmax - fZmin) * (fZmax - fZmin))) / 2;
}
ostream& operator << (ostream& os, const G4VisExtent& e) {
os << "G4VisExtent (bounding box):";
os << "\n X limits: " << e.fXmin << ' ' << e.fXmax;
os << "\n Y limits: " << e.fYmin << ' ' << e.fYmax;
os << "\n Z limits: " << e.fZmin << ' ' << e.fZmax;
return os;
}
G4bool operator != (const G4VisExtent& e1, const G4VisExtent& e2) {
return ((e1.fXmin != e2.fXmin) ||
(e1.fXmax != e2.fXmax) ||
(e1.fYmin != e2.fYmin) ||
(e1.fYmax != e2.fYmax) ||
(e1.fZmin != e2.fZmin) ||
(e1.fZmax != e2.fZmax));
}