MyMarlinTPC: marlintpc::rb_HyperCube Class Reference

MyMarlinTPC 170316

Row based hypercubes. More...

#include <RowBasedFastHoughTransformationProcessor.h>

Public Member Functions
	rb_HyperCube (unsigned int *, hyperPlaneListType &, intListType &, unsigned int=0)
	Construct row based hypercube. More...

void	print () const
	Print hypercube. More...

hitListType	divide (int, int, int, int, float, float)
	Divide hypercube (recursively). More...

Private Attributes
unsigned int	_setup [2]
	setup (number of parameters for pad plane (3), drift time measurement (2)) More...

std::vector< rb_HyperPlane * >	_planes
	list of hyperplanes More...

intListType	_distances
	list distances More...

int	_level
	(splitting) level More...

int	_numChild
	number of child cubes More...

unsigned int	_dimension
	(measurement) dimension (1 or 2) More...

Detailed Description

Row based hypercubes.

Has entries with distances and hyperplanes. Subdivided recursively until first track candidate found or maximal (splitting) level reached.

Definition at line 183 of file RowBasedFastHoughTransformationProcessor.h.

Constructor & Destructor Documentation

◆ rb_HyperCube()

marlintpc::rb_HyperCube::rb_HyperCube	(	unsigned int *	setup,
		hyperPlaneListType &	planes,
		intListType &	distances,
		unsigned int	level = `0`
	)

Construct row based hypercube.

Parameters

[in]	setup	number of parameters per measurement (pad plane, drift time)
[in]	planes	list of hyperplanes (pointer)
[in]	distances	list of distances
[in]	level	level (number of cube splittings)

Definition at line 492 of file RowBasedFastHoughTransformationProcessor.cc.

References _dimension, _numChild, _setup, and marlintpc::nCube.

Member Function Documentation

◆ divide()

hitListType marlintpc::rb_HyperCube::divide	(	int	maxCube,
		int	minRows,
		int	minLevel,
		int	maxLevel,
		float	effCut,
		float	purCut
	)

Divide hypercube (recursively).

Parameters

[in]	maxCube	maximal number of cubes to check.
[in]	minRows	minimum number of rows in child.
[in]	minLevel	minimal level (number of splittings)
[in]	maxLevel	maximal level (number of splittings)
[in]	effCut	efficiency cut (minimal hit density)
[in]	purCut	purity cut (maximal hit density)

Returns: list of hits for track candidate (from final cube)

For all child cubes count rows from intersecting hyperplanes.
Sort child cubes by (decreasing) number of rows and (increasing) distance spread (<d**2>).
Check (orderd) child cubes

Accept cube with proper hit density (and minimum level) as track candidate.
Subdivide cube if not reached maximum level.

Definition at line 518 of file RowBasedFastHoughTransformationProcessor.cc.

References _dimension, _distances, _level, _numChild, _planes, _setup, divide(), marlintpc::rb_HyperPlane::getCut(), marlintpc::rb_HyperPlane::getRow(), marlintpc::rb_HyperPlane::getStep(), and marlintpc::nCube.

Referenced by divide(), and marlintpc::RowBasedFastHoughTransformationProcessor::processEvent().

◆ print()

void marlintpc::rb_HyperCube::print ( ) const

Print hypercube.

Definition at line 503 of file RowBasedFastHoughTransformationProcessor.cc.

References _level, _numChild, and marlintpc::nCube.

Member Data Documentation

◆ _dimension

unsigned int marlintpc::rb_HyperCube::_dimension

private

(measurement) dimension (1 or 2)

Definition at line 195 of file RowBasedFastHoughTransformationProcessor.h.

Referenced by divide(), and rb_HyperCube().

◆ _distances

intListType marlintpc::rb_HyperCube::_distances

private

list distances

Definition at line 192 of file RowBasedFastHoughTransformationProcessor.h.

Referenced by divide().

◆ _level

int marlintpc::rb_HyperCube::_level

private

(splitting) level

Definition at line 193 of file RowBasedFastHoughTransformationProcessor.h.

Referenced by divide(), and print().

◆ _numChild

int marlintpc::rb_HyperCube::_numChild

private

number of child cubes

Definition at line 194 of file RowBasedFastHoughTransformationProcessor.h.

Referenced by divide(), print(), and rb_HyperCube().

◆ _planes

std::vector<rb_HyperPlane*> marlintpc::rb_HyperCube::_planes

private

list of hyperplanes

Definition at line 191 of file RowBasedFastHoughTransformationProcessor.h.

Referenced by divide().

◆ _setup

unsigned int marlintpc::rb_HyperCube::_setup[2]

private

setup (number of parameters for pad plane (3), drift time measurement (2))

Definition at line 190 of file RowBasedFastHoughTransformationProcessor.h.

Referenced by divide(), and rb_HyperCube().

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