JASTRONOMY::JResolutionTF1 Struct Reference

Implementation of detector resolution based on a formula. More...

#include <JResolution.hh>

Inheritance diagram for JASTRONOMY::JResolutionTF1:

Public Member Functions
virtual std::istream &	read (std::istream &in) override
	Read detector resolution from input stream.
virtual std::ostream &	write (std::ostream &out) const override
	Write detector resolution to output stream.
JDirection3D	get () const override
	Get direction.

Public Attributes
std::shared_ptr< TF1 >	f1

Detailed Description

Implementation of detector resolution based on a formula.

Note that all input angles are in degrees.

Definition at line 149 of file JResolution.hh.

Member Function Documentation

read()

virtual std::istream & JASTRONOMY::JResolutionTF1::read ( std::istream & in )

inlineoverridevirtual

Read detector resolution from input stream.

Parameters

in	input stream

Returns

input stream

Implements JASTRONOMY::JResolution.

Definition at line 158 of file JResolution.hh.

    {
      TString buffer;
 
      if (buffer.ReadLine(in)) {
      
        f1.reset(new TF1("f1", buffer));
 
        if (!f1->IsValid()) {
          THROW(JParseError, "Invalid function " << buffer);
        }
      }
      
      return in;
    }

write()

virtual std::ostream & JASTRONOMY::JResolutionTF1::write ( std::ostream & out ) const

inlineoverridevirtual

Write detector resolution to output stream.

Parameters

out	output stream

Returns

output stream

Implements JASTRONOMY::JResolution.

Definition at line 181 of file JResolution.hh.

    {
      if (f1)
        return out << f1->GetExpFormula();
      else
        return out;
    }

get()

JDirection3D JASTRONOMY::JResolutionTF1::get ( ) const

inlineoverridevirtual

Get direction.

Returns

direction

Implements JASTRONOMY::JResolution.

Definition at line 195 of file JResolution.hh.

    {
      using namespace JPP;
 
      JDirection3D u(0.0, 0.0, 1.0);
 
      if (f1) {
 
        const double theta = getRadians(f1->GetRandom(gRandom));
        const double phi   = gRandom->Uniform(-PI, +PI);
 
        const JRotation3D R(JAngle3D(theta, phi));
 
        u.rotate_back(R);
      }
 
      return u;
    }

Member Data Documentation

f1

std::shared_ptr<TF1> JASTRONOMY::JResolutionTF1::f1

Definition at line 215 of file JResolution.hh.

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The documentation for this struct was generated from the following file:

• JResolution.hh