Gabriele Cosmo
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
// This code implementation is the intellectual property of
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// the RD44 GEANT4 collaboration.
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//
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// By copying, distributing or modifying the Program (or any work
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// based on the Program) you indicate your acceptance of this statement,
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// and all its terms.
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//
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// $Id: G4Colour.hh,v 1.2 1999/05/25 09:10:07 johna Exp $
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// GEANT4 tag $Name: geant4-00-01 $
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//
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//
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// John Allison 20th October 1996
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#ifndef G4COLOUR_HH
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#define G4COLOUR_HH
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#include "globals.hh"
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class ostream;
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class G4Colour {
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friend ostream& operator << (ostream& os, const G4Colour& c);
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public:
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G4Colour (G4double r = 1., G4double g = 1., G4double b = 1.,
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G4double a = 1.);
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G4bool operator != (const G4Colour& c) const;
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G4double GetRed () const;
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G4double GetGreen () const;
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G4double GetBlue () const;
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G4double GetAlpha () const; // alpha = opacity = 1. - transparency.
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private:
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G4double red, green, blue, alpha;
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};
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inline G4Colour::G4Colour (G4double r, G4double g, G4double b, G4double a):
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red (r), green (g), blue (b), alpha (a)
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{
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if( red > 1.0 ){red = 1.0;} if( red < 0.0 ){red = 0.0;}
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if( green > 1.0 ){green = 1.0;} if( green < 0.0 ){green = 0.0;}
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if( blue > 1.0 ){blue = 1.0;} if( blue < 0.0 ){blue = 0.0;}
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if( alpha > 1.0 ){alpha = 1.0;} if( alpha < 0.0 ){alpha = 0.0;}
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}
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inline G4double G4Colour::GetRed () const {return red;}
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inline G4double G4Colour::GetGreen () const {return green;}
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inline G4double G4Colour::GetBlue () const {return blue;}
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inline G4double G4Colour::GetAlpha () const {return alpha;}
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#endif
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