JASTRONOMY::JResolutionTH1 Struct Reference

Implementation of detector resolution based on histogram. More...

#include <JResolution.hh>

Inheritance diagram for JASTRONOMY::JResolutionTH1:

Public Member Functions
virtual	~JResolutionTH1 ()
	Virtual destructor.
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::string	filename
std::string	histname

Protected Member Functions
void	load ()
	Load histogram from file.

Protected Attributes
TFile *	in = NULL
TH1D *	h1 = NULL

Detailed Description

Implementation of detector resolution based on histogram.

Note that all input angles are in degrees.

Definition at line 221 of file JResolution.hh.

Constructor & Destructor Documentation

~JResolutionTH1()

virtual JASTRONOMY::JResolutionTH1::~JResolutionTH1 ( )

inlinevirtual

Virtual destructor.

Definition at line 227 of file JResolution.hh.

    {
      if (in != NULL) {
        in->Close();
      }
    }

Member Function Documentation

read()

virtual std::istream & JASTRONOMY::JResolutionTH1::read ( std::istream & in )

inlineoverridevirtual

Read detector resolution from input stream.

Parameters

in	input stream

Returns

input stream

Implements JASTRONOMY::JResolution.

Definition at line 241 of file JResolution.hh.

    {
      in >> this->filename
         >> this->histname;
 
      load();
 
      return in;
    }

write()

virtual std::ostream & JASTRONOMY::JResolutionTH1::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 258 of file JResolution.hh.

    {
      return out << this->filename << ' '
                 << this->histname;
    }

get()

JDirection3D JASTRONOMY::JResolutionTH1::get ( ) const

inlineoverridevirtual

Get direction.

Returns

direction

Implements JASTRONOMY::JResolution.

Definition at line 270 of file JResolution.hh.

    {
      using namespace JPP;
 
      JDirection3D u(0.0, 0.0, 1.0);
 
      if (h1 != NULL) {
 
        const double theta = getRadians(h1->GetRandom(gRandom));
        const double phi   = gRandom->Uniform(-PI, +PI);
 
        const JRotation3D R(JAngle3D(theta, phi));
 
        u.rotate_back(R);
      }
 
      return u;
    }

load()

void JASTRONOMY::JResolutionTH1::load ( )

inlineprotected

Load histogram from file.

Definition at line 297 of file JResolution.hh.

    {
      in = TFile::Open(filename.c_str(), "exist");
 
      if (in == NULL || !in->IsOpen()) {
        THROW(JFileOpenException, "File: " << filename << " not opened.");
      }
 
      h1 = dynamic_cast<TH1D*>(in->Get(histname.c_str()));
 
      if (h1 == NULL) {
        THROW(JValueOutOfRange, "Histogram: " << histname << " not found.");
      }
    }

Member Data Documentation

filename

std::string JASTRONOMY::JResolutionTH1::filename

Definition at line 290 of file JResolution.hh.

histname

std::string JASTRONOMY::JResolutionTH1::histname

Definition at line 291 of file JResolution.hh.

in

TFile* JASTRONOMY::JResolutionTH1::in = NULL

mutableprotected

Definition at line 312 of file JResolution.hh.

h1

TH1D* JASTRONOMY::JResolutionTH1::h1 = NULL

mutableprotected

Definition at line 313 of file JResolution.hh.

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

• JResolution.hh