Action #2308

Add GCTABackground integration method

Added by Knödlseder Jürgen almost 7 years ago. Updated almost 7 years ago.

Status:ClosedStart date:02/08/2018
Priority:NormalDue date:
Assigned To:Knödlseder Jürgen% Done:

100%

Category:-
Target version:1.6.0
Duration:

Description

Add a method to GCTABackground that computes the expected event rate in units of counts / steradians / seconds within a given energy interval. The proposed interface for the method is 

double rate_ebin(const GCTAInstDir& dir, const GEnergy& emin, const GEnergy& emax);
The method is pure virtual and implemented at the level of the derived classes.

Recurrence

No recurrence.

History

#1 Updated by Knödlseder Jürgen almost 7 years ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 10

Add the method

gammalib::plaw_integral(double&, double&, double&, double&)
to the GMath module that analytically integrates a power law.

#2 Updated by Knödlseder Jürgen almost 7 years ago

Add the

double atan2(const double& y, const double& x)
method to compute the arc tangens in radians.

In addition, add

GCTAInstDir::theta()
GCTAInstDir::phi()
methods that return the offset and azimuth angles in instrument coordinates in radians.

#3 Updated by Knödlseder Jürgen almost 7 years ago

  • % Done changed from 10 to 80

A GCTABackground::rate_ebin() method was added to the abstract interface and implemented for GCTABackgroundPerfTable and GCTABackground3D. Unit tests were added to the C++ test class that test both classes and in particular the new rate_ebin() methods. Results look satisfactory.

#4 Updated by Knödlseder Jürgen almost 7 years ago

  • Target version set to 1.6.0

#5 Updated by Knödlseder Jürgen almost 7 years ago

  • Status changed from In Progress to Closed
  • % Done changed from 80 to 100

Merged into devel.

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