net.algart.model3d.common.movement.model
Interface HavingInteractionRadius

All Superinterfaces:

HavingCenter, Item

All Known Implementing Classes:

ElasticBall

public interface HavingInteractionRadius
extends HavingCenter

Item which cannot act to other items, also implementing this interface, if their centers are too far from this one: farther than some interaction radius R. More precisely, there is a guarantee, that if toItem and byItem implement this interface, the distance between their centers Math.sqrt(toItem.squareOfDistance(byItem))>R₁+R₂ (where R₁=toItem.getMaxInteractionRadius() and R₂=byItem.getMaxInteractionRadius()), and rule is any InteractionRule, then rule.calculateForce method returns zero force F=0.

This interface extends HavingCenter, because the "interaction radius" concept have no sense for items which have no centers.

AlgART Laboratory 2010

Since:

JDK 1.5

Version:

1.0

Author:

Daniel Alievsky

getMaxInteractionRadius

double getMaxInteractionRadius()

Returns the interaction radius R: maximal distance from the center where this object can affect to other item, also implementing this interface. Can return Double.POSITIVE_INFINITY: it means the same as if the object does not implement this interface.

Returns:

the interaction radius R.