marlintpc::rb_HyperCube Class Reference

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

Detailed Description

Row based hypercubes.

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

Constructor & Destructor Documentation

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)

References marlintpc::nCube.

Member Function Documentation

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

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

References divide(), marlintpc::rb_HyperPlane::getCut(), marlintpc::rb_HyperPlane::getRow(), marlintpc::rb_HyperPlane::getStep(), and marlintpc::nCube.

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

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

• RowBasedFastHoughTransformationProcessor.h
• RowBasedFastHoughTransformationProcessor.cc