This class calculates a distance between segments from two points. More...

Inheritance diagram for gaia2::CrossSegmentDistance:

Public Member Functions
	CrossSegmentDistance (const PointLayout &layout, const ParameterMap &params)

Real	operator() (const Point &p1, const Point &p2, int seg1, int seg2) const
	This function computes the distance between the two given points. More...

Public Member Functions inherited from gaia2::DistanceFunction
	DistanceFunction (const PointLayout &layout, const ParameterMap &params)

const PointLayout &	layout () const

const Region &	checkFixedLength (const Region &region) const
	Checks that the given Region only contains fixed-length descriptors and throws an exception if not. More...

Protected Attributes
DistanceFunction *	_dist

DistAggr *	_aggr1

DistAggr *	_aggr2

Protected Attributes inherited from gaia2::DistanceFunction
PointLayout	_layout

ParameterMap	_params

Region	_region

Additional Inherited Members
Public Attributes inherited from gaia2::DistanceFunction
QString	name
	Name for the metric, usually the key that was used to instantiate it from the factory.

QStringList	validParams
	List of valid parameters this analyzer accepts. More...

Detailed Description

This class calculates a distance between segments from two points.

The function used to calculate the distance between two segments is given by the distance parameter. What it does is the following:

for a given segment of p1, it computes its distance with all the segments of p2, then uses func1 to aggregate the results.
it does the previous for all segments of p1, then uses func2 to aggregate the results.

WARNING: this metric is not final, and it might change its behavior in the future.

Parameters

distance	the name of the distance to be composed with.
params	the parameters for creating the distance.
func1	the first aggregation function (min, max or mean).
func2	the second aggregation function (min, max or mean).

Member Function Documentation

Real CrossSegmentDistance::operator()	(	const Point &	p1,
		const Point &	p2,
		int	seg1,
		int	seg2
	)		const

virtual

This function computes the distance between the two given points.

It needs to be implemented in each subclass. It takes as optional arguments the number of the segments on which to operate.

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