org.miv.pherd.ntree
Class BarycenterCellData

java.lang.Object
  org.miv.pherd.ntree.BarycenterCellData

All Implemented Interfaces:

CellData

public class BarycenterCellData
extends Object
implements CellData

Cell data that represent the barycenter of a cell.

For leaf cells the barycenter is computed from the particles in the cell. For non-lead cell, the barycenter represents the barycenters of each subcell.

Since:

2007

Author:

Antoine Dutot

Field Summary

Cell	cell The cell this data is attached to.
Point3	center The barycenter.
Object	marked Allows debugging.
double	weight The importance of this centre (in other words, the number of particles represented by this barycenter).

Constructor Summary

BarycenterCellData()

Method Summary

double	distanceFrom(Point3 p) Distance between this barycentre and a point p.
Point3	getCenter() The barycenter.
double	getWeight() The importance of the barycenter.
CellData	newCellData() Factory method to create new cell data when a cell is subdivided.
void	recompute() Recompute the data, since the cell contents changed.
void	setCell(Cell cell) Set the parent cell of this data.

Methods inherited from class java.lang.Object

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

Field Detail

center

public Point3 center

The barycenter.

weight

public double weight

The importance of this centre (in other words, the number of particles represented by this barycenter).

cell

public Cell cell

The cell this data is attached to.

marked

public Object marked

Allows debugging.

Constructor Detail

BarycenterCellData

public BarycenterCellData()

Method Detail

getCenter

public Point3 getCenter()

The barycenter.

Returns:

a point.

getWeight

public double getWeight()

The importance of the barycenter. This is the number of particles this barycenter represents.

Returns:

The weight.

distanceFrom

public double distanceFrom(Point3 p)

Distance between this barycentre and a point p.

Parameters:

p - The point to consider (the other is the barycentre).

Returns:

The distance between the point and this barycentre.

newCellData

public CellData newCellData()

Description copied from interface: CellData

Factory method to create new cell data when a cell is subdivided.

Specified by:

newCellData in interface CellData

Returns:

A new cell data element.

setCell

public void setCell(Cell cell)

Description copied from interface: CellData

Set the parent cell of this data. This occurs only once, as soon as the cell knows its data.

Specified by:

setCell in interface CellData

Parameters:

cell - The tied cell.

recompute

public void recompute()

Description copied from interface: CellData

Recompute the data, since the cell contents changed.

Specified by:

recompute in interface CellData