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G4Colour.hh
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27 // $Id: G4Colour.hh 106385 2017-10-09 09:36:33Z gcosmo $
28 //
29 //
30 // John Allison 20th October 1996
31 
32 // Class Description:
33 // Class G4Colour has 4 fields, which represent the RGBA (red, green, blue,
34 // and alpha) components of colour. Each component takes a value between
35 // 0 and 1. If an irrelevant value, i.e., a value less than 0 or greater
36 // than 1, is given as an argument of the constructor, such a value is
37 // automatically clipped to 0 or 1. Alpha is opacity (1 = opaque).
38 //
39 // A G4Colour object is instantiated by giving red, green, and blue
40 // components to its constructor, i.e.,
41 //
42 // G4Colour::G4Colour ( G4double r = 1.0,
43 // G4double g = 1.0,
44 // G4double b = 1.0,
45 // G4double a = 1.0);
46 // // 0<=red, green, blue <= 1.0
47 //
48 // The default value of each component is 1.0. That is to say, the default
49 // colour is "white". For example, colours which are often used can be
50 // instantiated as follows:
51 //
52 // G4Colour white () ; // white
53 // G4Colour white (1.0, 1.0, 1.0) ; // white
54 // G4Colour gray (0.5, 0.5, 0.5) ; // gray
55 // G4Colour black (0.0, 0.0, 0.0) ; // black
56 // G4Colour brown (0.45,0.25,0.0) ; // G4 logo brown
57 // G4Colour red (1.0, 0.0, 0.0) ; // red
58 // G4Colour green (0.0, 1.0, 0.0) ; // green
59 // G4Colour blue (0.0, 0.0, 1.0) ; // blue
60 // G4Colour cyan (0.0, 1.0, 1.0) ; // cyan
61 // G4Colour magenta (1.0, 0.0, 1.0) ; // magenta
62 // G4Colour yellow (1.0, 1.0, 0.0) ; // yellow
63 //
64 // For convenience, static member functions are also defined for the above colours.
65 //
66 // After instantiation of a G4Colour object, you can access to its components
67 // with the following access functions:
68 //
69 // G4double G4Colour::GetRed () const ; // Get the red component.
70 // G4double G4Colour::GetGreen () const ; // Get the green component.
71 // G4double G4Colour::GetBlue () const ; // Get the blue component.
72 //
73 // Class Description - End:
74 
75 #ifndef G4COLOUR_HH
76 #define G4COLOUR_HH
77 
78 #include "globals.hh"
79 #include "G4ThreeVector.hh"
80 #include <iostream>
81 #include <map>
82 
83 class G4Colour {
84 
85  friend std::ostream& operator << (std::ostream&, const G4Colour&);
86 
87 public: // With description
88 
89  G4Colour (G4double r = 1., G4double g = 1., G4double b = 1.,
90  G4double a = 1.);
91 
93  // Converts the components of the 3-vector into red, green, blue.
94  // The opacity, alpha = 1.
95 
96  operator G4ThreeVector();
97  // Converts red, green, blue into the components of a 3-vector.
98 
99  G4bool operator != (const G4Colour& c) const;
100  G4bool operator == (const G4Colour& c) const {return !(operator != (c));}
101 
102  G4Colour& operator += (const G4Colour& rhs) {*this = rhs; return *this;}
103  // Note: This is required by RayTracer in its use of G4THitsMap.
104  // Adding colours, without also taking brightness into account, does not make
105  // sense, so let us make it synonymous with operator=, which is, I guess,
106  // equivalent to covering the old colour with the new, like a coat of paint.
107 
108  G4double GetRed () const;
109  G4double GetGreen () const;
110  G4double GetBlue () const;
111  G4double GetAlpha () const; // alpha = opacity = 1. - transparency.
112 
113  void SetRed (G4double);
114  void SetGreen (G4double);
115  void SetBlue (G4double);
116  void SetAlpha (G4double); // alpha = opacity = 1. - transparency.
117 
118  static G4Colour White();
119  static G4Colour Gray();
120  static G4Colour Grey();
121  static G4Colour Black();
122  static G4Colour Brown(); // G4 logo brown
123  static G4Colour Red();
124  static G4Colour Green();
125  static G4Colour Blue();
126  static G4Colour Cyan();
127  static G4Colour Magenta();
128  static G4Colour Yellow();
129 
130  static G4bool GetColour(const G4String& key, G4Colour& result);
131  // Get colour for given key, placing it in result.
132  // The key is usually the name of the colour.
133  // The key is not case sensitive.
134  // Returns false if key doesn't exist, leaving result unchanged.
135 
136  static void AddToMap(const G4String& key, const G4Colour& colour);
137  // Add user defined colour to colour map with given key. Standard
138  // colours are added to map by default.
139 
140  static void InitialiseColourMap();
141  static const std::map<G4String, G4Colour>& GetMap();
142 
143 private:
145 
146  static std::map<G4String, G4Colour> fColourMap;
148 
149 };
150 
151 inline G4double G4Colour::GetRed () const {return red;}
152 inline G4double G4Colour::GetGreen () const {return green;}
153 inline G4double G4Colour::GetBlue () const {return blue;}
154 inline G4double G4Colour::GetAlpha () const {return alpha;}
155 inline G4Colour G4Colour::White() {return G4Colour(1.0, 1.0, 1.0);}
156 inline G4Colour G4Colour::Gray() {return G4Colour(0.5, 0.5, 0.5);}
157 inline G4Colour G4Colour::Grey() {return G4Colour(0.5, 0.5, 0.5);}
158 inline G4Colour G4Colour::Black() {return G4Colour(0.0, 0.0, 0.0);}
159 inline G4Colour G4Colour::Brown() {return G4Colour(0.45,0.25,0.0);}
160 inline G4Colour G4Colour::Red() {return G4Colour(1.0, 0.0, 0.0);}
161 inline G4Colour G4Colour::Green() {return G4Colour(0.0, 1.0, 0.0);}
162 inline G4Colour G4Colour::Blue() {return G4Colour(0.0, 0.0, 1.0);}
163 inline G4Colour G4Colour::Cyan() {return G4Colour(0.0, 1.0, 1.0);}
164 inline G4Colour G4Colour::Magenta() {return G4Colour(1.0, 0.0, 1.0);}
165 inline G4Colour G4Colour::Yellow() {return G4Colour(1.0, 1.0, 0.0);}
166 
167 #endif
CLHEP::Hep3Vector G4ThreeVector
static std::map< G4String, G4Colour > fColourMap
Definition: G4Colour.hh:146
std::vector< ExP01TrackerHit * > a
Definition: ExP01Classes.hh:33
void SetRed(G4double)
Definition: G4Colour.cc:53
void SetGreen(G4double)
Definition: G4Colour.cc:59
G4double green
Definition: G4Colour.hh:144
G4Colour & operator+=(const G4Colour &rhs)
Definition: G4Colour.hh:102
static G4bool fInitColourMap
Definition: G4Colour.hh:147
static G4Colour Black()
Definition: G4Colour.hh:158
static G4Colour Gray()
Definition: G4Colour.hh:156
G4double blue
Definition: G4Colour.hh:144
void SetBlue(G4double)
Definition: G4Colour.cc:65
static void AddToMap(const G4String &key, const G4Colour &colour)
Definition: G4Colour.cc:111
static constexpr double g
Definition: G4SIunits.hh:183
G4Colour(G4double r=1., G4double g=1., G4double b=1., G4double a=1.)
Definition: G4Colour.cc:36
double G4double
Definition: G4Types.hh:76
bool G4bool
Definition: G4Types.hh:79
static G4Colour Yellow()
Definition: G4Colour.hh:165
static void InitialiseColourMap()
Definition: G4Colour.cc:143
static G4Colour Blue()
Definition: G4Colour.hh:162
G4double GetRed() const
Definition: G4Colour.hh:151
static G4Colour Cyan()
Definition: G4Colour.hh:163
G4double G4ParticleHPJENDLHEData::G4double result
static G4Colour Magenta()
Definition: G4Colour.hh:164
static G4Colour Brown()
Definition: G4Colour.hh:159
static G4Colour Red()
Definition: G4Colour.hh:160
G4double alpha
Definition: G4Colour.hh:144
static const std::map< G4String, G4Colour > & GetMap()
Definition: G4Colour.cc:181
void SetAlpha(G4double)
Definition: G4Colour.cc:71
static G4Colour Green()
Definition: G4Colour.hh:161
static G4Colour White()
Definition: G4Colour.hh:155
G4double GetAlpha() const
Definition: G4Colour.hh:154
G4double GetBlue() const
Definition: G4Colour.hh:153
G4double GetGreen() const
Definition: G4Colour.hh:152
G4bool operator!=(const G4Colour &c) const
Definition: G4Colour.cc:97
G4double red
Definition: G4Colour.hh:144
G4bool operator==(const G4Colour &c) const
Definition: G4Colour.hh:100
friend std::ostream & operator<<(std::ostream &, const G4Colour &)
Definition: G4Colour.cc:81
static G4bool GetColour(const G4String &key, G4Colour &result)
Definition: G4Colour.cc:163
static G4Colour Grey()
Definition: G4Colour.hh:157