This class provides a simple interface to write Transforms to a root tree. More...

#include <TransformNtupleBranch.h>

Collaboration diagram for Trk::TransformNtupleBranch:

Public Member Functions
void	initForWrite (TTree &tree, std::string_view prefix="")
	initialize class for writing
void	initForRead (TTree &tree, std::string_view prefix="")
	initialize class for reading
void	fill (const Amg::Transform3D &transform)
	fill a transform
void	fill (const HepGeom::Transform3D &transform)
	fill a transform

Public Attributes
MatrixNtupleBranch	m_rotation
	data
VectorNtupleBranch	m_translation

Detailed Description

This class provides a simple interface to write Transforms to a root tree.

Usage:

TTree* myTree = new TTree("data","data"); TransformNtupleBranch branch; branch.initForWrite(*myTree,"");

for(int i=0;i<n;++i){ branch.fill( ); myTree->Fill(); }

Definition at line 34 of file TransformNtupleBranch.h.

Member Function Documentation

◆ fill() [1/2]

void Trk::TransformNtupleBranch::fill ( const Amg::Transform3D & transform )

fill a transform

Definition at line 23 of file TransformNtupleBranch.cxx.

                                                                    {
    Amg::Vector3D translation = transform.translation();
    Amg::RotationMatrix3D rotation = transform.rotation();
 
    m_rotation.fill(rotation);
    m_translation.fill(translation);
  }

◆ fill() [2/2]

void Trk::TransformNtupleBranch::fill ( const HepGeom::Transform3D & transform )

fill a transform

Definition at line 31 of file TransformNtupleBranch.cxx.

                                                                        {
    m_rotation.fill(transform.getRotation());
    m_translation.fill(transform.getTranslation());
  }

◆ initForRead()

void Trk::TransformNtupleBranch::initForRead	(	TTree &	tree,
		std::string_view	prefix = "" )

initialize class for reading

Definition at line 16 of file TransformNtupleBranch.cxx.

                                                                             { 
    m_rotation.initForRead(tree,"rot",3,3,prefix);
    m_translation.initForRead(tree,"trans",3,prefix);
  }

◆ initForWrite()

void Trk::TransformNtupleBranch::initForWrite	(	TTree &	tree,
		std::string_view	prefix = "" )

initialize class for writing

Definition at line 11 of file TransformNtupleBranch.cxx.

                                                                             {    
    m_rotation.initForWrite(tree,"rot",3,3,prefix);
    m_translation.initForWrite(tree,"trans",3,prefix);
  }

Member Data Documentation

◆ m_rotation

MatrixNtupleBranch Trk::TransformNtupleBranch::m_rotation

data

Definition at line 49 of file TransformNtupleBranch.h.

◆ m_translation

VectorNtupleBranch Trk::TransformNtupleBranch::m_translation

Definition at line 50 of file TransformNtupleBranch.h.

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

Public Member Functions

Public Attributes