PropagationPropertiesCalculator Class Reference

#include <PropagationPropertiesCalculator.hpp>

Collaboration diagram for PropagationPropertiesCalculator:

List of all members.

Public Member Functions

PropagationPropertiesCalculator (Hdf5DataReader *pDataReader, const std::string voltageName="V")

double CalculateMaximumUpstrokeVelocity (unsigned globalNodeIndex)

std::vector< double > CalculateAllMaximumUpstrokeVelocities (unsigned globalNodeIndex, double threshold)

std::vector< double > CalculateUpstrokeTimes (unsigned globalNodeIndex, double threshold)

double CalculateConductionVelocity (unsigned globalNearNodeIndex, unsigned globalFarNodeIndex, const double euclideanDistance)

std::vector< double > CalculateAllConductionVelocities (unsigned globalNearNodeIndex, unsigned globalFarNodeIndex, const double euclideanDistance)

double CalculateActionPotentialDuration (const double percentage, unsigned globalNodeIndex)

double CalculatePeakMembranePotential (unsigned globalNodeIndex)

std::vector< double > CalculateAllActionPotentialDurations (const double percentage, unsigned globalNodeIndex, double threshold)

Private Attributes

Hdf5DataReader * mpDataReader

const std::string mVoltageName

Detailed Description

Calculate physiological properties at given global mesh indices

maximum upstroke velocity at a single cell
times of upstroke at a single cell
(all) conduction velocities between two cells
(all) action potential duration at a single cell
maximum transmembrane potential (maximum systolic potential) at a single cell.

Definition at line 44 of file PropagationPropertiesCalculator.hpp.

Constructor & Destructor Documentation

PropagationPropertiesCalculator::PropagationPropertiesCalculator	(	Hdf5DataReader *	pDataReader,
		const std::string	voltageName = `"V"`
	)

Constructor.

Parameters:

	pDataReader	Pointer to the data reader containing the simulation.
	voltageName	Optionally the name of the variable representing the membrane potential. Defaults to "V".

Definition at line 34 of file PropagationPropertiesCalculator.cpp.

Member Function Documentation

double PropagationPropertiesCalculator::CalculateMaximumUpstrokeVelocity ( unsigned globalNodeIndex )

Calculate the maximum upstroke velocity at a single cell. We calculate for the last upstroke found in the simulation data.

Parameters:

globalNodeIndex

The cell at which to calculate.

Todo:: the following helper method, when used, causes seg faults. Mend it and use to reduce repeated code.

Definition at line 55 of file PropagationPropertiesCalculator.cpp.

References CellProperties::GetLastMaxUpstrokeVelocity(), Hdf5DataReader::GetUnlimitedDimensionValues(), Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

std::vector< double > PropagationPropertiesCalculator::CalculateAllMaximumUpstrokeVelocities	(	unsigned	globalNodeIndex,
		double	threshold
	)

Calculate the maximum upstroke velocity at a single cell. We return all the max upstroke velocities for all APs.

Parameters:

	globalNodeIndex	The cell at which to calculate.
	threshold	The voltage threshold (we use this for marking the end of an AP)

Definition at line 63 of file PropagationPropertiesCalculator.cpp.

References CellProperties::GetMaxUpstrokeVelocities(), Hdf5DataReader::GetUnlimitedDimensionValues(), Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

Referenced by PostProcessingWriter::WriteMaxUpstrokeVelocityMap().

std::vector< double > PropagationPropertiesCalculator::CalculateUpstrokeTimes	(	unsigned	globalNodeIndex,
		double	threshold
	)

Calculate the times of upstroke at a single cell. We return all the times of upstroke velocities for all APs.

Parameters:

	globalNodeIndex	The cell at which to calculate.
	threshold	The voltage threshold for APD calculation (we count this as the start of an AP)

Definition at line 71 of file PropagationPropertiesCalculator.cpp.

References CellProperties::GetTimesAtMaxUpstrokeVelocity(), Hdf5DataReader::GetUnlimitedDimensionValues(), Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

Referenced by PostProcessingWriter::WriteUpstrokeTimeMap().

double PropagationPropertiesCalculator::CalculateConductionVelocity	(	unsigned	globalNearNodeIndex,
		unsigned	globalFarNodeIndex,
		const double	euclideanDistance
	)

Calculate the conduction velocity between two cells, i.e. the time taken for an AP to propagate from one to the other. It returns the value of conduction velocity of the LAST action potential that reached both nodes. Throws exceptions if an AP never reached one of the nodes.

Parameters:

	globalNearNodeIndex	The cell to measure from.
	globalFarNodeIndex	The cell to measure to.
	euclideanDistance	The distance the AP travels between the cells, along the tissue.

Definition at line 115 of file PropagationPropertiesCalculator.cpp.

References CellProperties::GetMaxUpstrokeVelocities(), CellProperties::GetTimeAtLastMaxUpstrokeVelocity(), CellProperties::GetTimesAtMaxUpstrokeVelocity(), Hdf5DataReader::GetUnlimitedDimensionValues(), Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

Referenced by AbstractConvergenceTester< CELL, CARDIAC_PROBLEM, DIM, PROBLEM_DIM >::Converge().

std::vector< double > PropagationPropertiesCalculator::CalculateAllConductionVelocities	(	unsigned	globalNearNodeIndex,
		unsigned	globalFarNodeIndex,
		const double	euclideanDistance
	)

Calculate all the conduction velocities between two cells, i.e. the time taken for all APs to propagate from one to the other. It returns a vector containing all the conduction velocities for each of the APs that reached the two nodes (only the APs that reached both nodes). Throws exceptions if an AP never reached one of the nodes.

Parameters:

	globalNearNodeIndex	The cell to measure from.
	globalFarNodeIndex	The cell to measure to.
	euclideanDistance	The distance the AP travels between the cells, along the tissue.

Definition at line 173 of file PropagationPropertiesCalculator.cpp.

References CellProperties::GetTimesAtMaxUpstrokeVelocity(), Hdf5DataReader::GetUnlimitedDimensionValues(), Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

Referenced by PostProcessingWriter::WriteConductionVelocityMap().

double PropagationPropertiesCalculator::CalculateActionPotentialDuration	(	const double	percentage,
		unsigned	globalNodeIndex
	)

Calculate the action potential duration at a single cell. We calculate for the last AP found in the simulation data.

Parameters:

	percentage	The percentage of the amplitude to calculate for.
	globalNodeIndex	The cell at which to calculate.

Definition at line 79 of file PropagationPropertiesCalculator.cpp.

References CellProperties::GetLastActionPotentialDuration(), Hdf5DataReader::GetUnlimitedDimensionValues(), Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

Referenced by AbstractConvergenceTester< CELL, CARDIAC_PROBLEM, DIM, PROBLEM_DIM >::Converge().

double PropagationPropertiesCalculator::CalculatePeakMembranePotential ( unsigned globalNodeIndex )

Calculate the maximum transmembrane potential (maximum systolic potential) at a single cell. We calculate for the last AP found in the simulation data.

Parameters:

globalNodeIndex

The cell at which to calculate.

Definition at line 101 of file PropagationPropertiesCalculator.cpp.

References Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

std::vector< double > PropagationPropertiesCalculator::CalculateAllActionPotentialDurations	(	const double	percentage,
		unsigned	globalNodeIndex,
		double	threshold
	)

Calculate all the action potentials duration at a single cell.

Parameters:

	percentage	The percentage of the amplitude to calculate for.
	globalNodeIndex	The cell at which to calculate.
	threshold	The voltage threshold for APD calculation (we count this as the start of an AP)

Definition at line 92 of file PropagationPropertiesCalculator.cpp.

References CellProperties::GetAllActionPotentialDurations(), Hdf5DataReader::GetUnlimitedDimensionValues(), Hdf5DataReader::GetVariableOverTime(), mpDataReader, and mVoltageName.

Referenced by PostProcessingWriter::WriteApdMapFile().

Member Data Documentation

Hdf5DataReader* PropagationPropertiesCalculator::mpDataReader [private]

Reader to get the data from which we use to calculate properties.

Definition at line 48 of file PropagationPropertiesCalculator.hpp.

Referenced by CalculateActionPotentialDuration(), CalculateAllActionPotentialDurations(), CalculateAllConductionVelocities(), CalculateAllMaximumUpstrokeVelocities(), CalculateConductionVelocity(), CalculateMaximumUpstrokeVelocity(), CalculatePeakMembranePotential(), and CalculateUpstrokeTimes().

const std::string PropagationPropertiesCalculator::mVoltageName [private]

Name of the variable representing the membrane potential.

Definition at line 50 of file PropagationPropertiesCalculator.hpp.

Referenced by CalculateActionPotentialDuration(), CalculateAllActionPotentialDurations(), CalculateAllConductionVelocities(), CalculateAllMaximumUpstrokeVelocities(), CalculateConductionVelocity(), CalculateMaximumUpstrokeVelocity(), CalculatePeakMembranePotential(), and CalculateUpstrokeTimes().

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

/tmp/release_1.1/heart/src/postprocessing/PropagationPropertiesCalculator.hpp
/tmp/release_1.1/heart/src/postprocessing/PropagationPropertiesCalculator.cpp


Public Member Functions
	PropagationPropertiesCalculator (Hdf5DataReader *pDataReader, const std::string voltageName="V")
double	CalculateMaximumUpstrokeVelocity (unsigned globalNodeIndex)
std::vector< double >	CalculateAllMaximumUpstrokeVelocities (unsigned globalNodeIndex, double threshold)
std::vector< double >	CalculateUpstrokeTimes (unsigned globalNodeIndex, double threshold)
double	CalculateConductionVelocity (unsigned globalNearNodeIndex, unsigned globalFarNodeIndex, const double euclideanDistance)
std::vector< double >	CalculateAllConductionVelocities (unsigned globalNearNodeIndex, unsigned globalFarNodeIndex, const double euclideanDistance)
double	CalculateActionPotentialDuration (const double percentage, unsigned globalNodeIndex)
double	CalculatePeakMembranePotential (unsigned globalNodeIndex)
std::vector< double >	CalculateAllActionPotentialDurations (const double percentage, unsigned globalNodeIndex, double threshold)
Private Attributes
Hdf5DataReader *	mpDataReader
const std::string	mVoltageName