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PHG4Utils.h
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1 // Tell emacs that this is a C++ source
2 // -*- C++ -*-.
3 #ifndef G4MAIN_PHG4UTILS_H
4 #define G4MAIN_PHG4UTILS_H
5 
6 #include <string>
7 #include <utility> // for pair
8 
9 class G4VisAttributes;
10 
11 class PHG4Utils
12 {
13  public:
14  static double GetLengthForRapidityCoverage(const double radius, const double eta);
15  static double GetLengthForRapidityCoverage(const double radius);
16  static void SetPseudoRapidityCoverage(const double eta);
17  static void SetColour(G4VisAttributes *att, const std::string &mat);
18  static double get_theta(const double eta);
19  static double get_eta(const double theta);
20  static std::pair<double, double> get_etaphi(const double x, const double y, const double z);
21  static double get_eta(const double radius, const double z);
22  static std::pair<bool, double> line_and_rectangle_intersect(double ax, double ay, double bx, double by, double cx, double cy, double dx, double dy);
23  static std::pair<bool, std::pair<double, double>> lines_intersect(double ax, double ay, double bx, double by, double cx, double cy, double dx, double dy);
24  static double circle_rectangle_intersection(double x1, double y1, double x2, double y2, double mx, double my, double r);
25  static double sA(double r, double x, double y);
26  static std::string md5sum(const std::string &filename);
27 
28  private:
29  static double _eta_coverage;
30 };
31 
32 #endif // G4MAIN_PHG4UTILS_H