Module org.elasticsearch.server

Package org.elasticsearch.lucene.spatial

Class CentroidCalculator

java.lang.Object

org.elasticsearch.lucene.spatial.CentroidCalculator

public class CentroidCalculator
extends Object

This class keeps a running Kahan-sum of coordinates that are to be averaged in TriangleTreeWriter for use as the centroid of a shape.

Constructor Summary

Constructors

Constructor	Description
CentroidCalculator()

Method Summary

Modifier and Type	Method	Description
void	add(Geometry geometry)	Add a geometry to the calculator
DimensionalShapeType	getDimensionalShapeType()
double	getX()
double	getY()
double	sumWeight()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CentroidCalculator

public CentroidCalculator()

Method Details

add

public void add(Geometry geometry)

Add a geometry to the calculator

Parameters:

geometry - the geometry to add

getX

public double getX()

Returns:

the x-coordinate centroid

getY

public double getY()

Returns:

the y-coordinate centroid

sumWeight

public double sumWeight()

Returns:

the sum of all the weighted coordinates summed in the calculator

getDimensionalShapeType

public DimensionalShapeType getDimensionalShapeType()

Returns:

the highest dimensional shape type summed in the calculator