igeo
Class IWall

java.lang.Object
  igeo.IObject
      igeo.IAgent
          igeo.IWall

All Implemented Interfaces:

IDynamics, ISubobject

Direct Known Subclasses:

ITriangleWall

public class IWall
extends IAgent

Infinite plane wall to bounce particle

Author:

Satoru Sugihara

Field Summary

double	elasticity coefficent for bouncing.
double	friction coefficent for tangent part of bouncing.
IVecI	planeDir
IVec	planeDirCache
IVecI	planePt
java.util.ArrayList<java.lang.Class<? extends IParticleI>>	targetClasses

Fields inherited from class igeo.IAgent

alive, duration, interactOverridden, localDynamics, parent, targets, time

Fields inherited from class igeo.IObject

attribute, dynamics, graphics, parameter, server

Constructor Summary

IWall(IVecI planeDir, IVecI planePt)

IWall(IWall wall)

Method Summary

void	bounce(IParticleI particle, java.util.ArrayList<IDynamics> agents) Calculate bouncing behavior of particle.
IVec	closerIntersection(IVec pt1, IVec pt2, java.util.ArrayList<IDynamics> agents)
double	distToCrossing(IParticleI particle) in case somebody needs to measure distance to the wall.
double	elast()
IWall	elast(double el)
double	elasticity()
IWall	elasticity(double el)
double	fric()
IWall	fric(double fric)
double	friction()
IWall	friction(double fric)
IWall	hide()
IVec	intersect(IVec pt1, IVec pt2)
boolean	isCrossing(IParticleI particle)
boolean	isCrossing(IVec pt1, IVec pt2)
boolean	isTargetClass(java.lang.Object obj)
IWall	layer(ILayer l) Set layer by ILayer object
IWall	name(java.lang.String nm) methods of IObject
void	postinteract(java.util.ArrayList<IDynamics> agents) executed after interact(ArrayList).
IWall	show()
IWall	targetClass(java.lang.Class<? extends IParticleI>... targets)
IWall	targetClass(java.lang.Class<? extends IParticleI> targetClass)

Methods inherited from class igeo.IAgent

addDynamics, alive, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, clr, del, deletDynamics, deleteDynamics, deleteDynamics, duration, duration, dynamicsNum, getDynamics, hsb, hsb, hsb, hsb, initAgent, interact, interact, localDynamics, parent, parent, postupdate, preinteract, preupdate, removeTarget, removeTarget, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setColor, setHSBColor, setHSBColor, setHSBColor, setHSBColor, target, target, targetNum, targets, time, time, update, updateGraphic, updateTarget, weight, weight

Methods inherited from class igeo.IObject

alpha, alphaInt, attr, attr, attr, awtColor, blue, blueInt, clearDynamics, clearGraphics, clr, clr, clr, clr, clr, color, cp, createGraphic, deleteGraphic, dup, getAWTColor, getColor, getGraphic, getGraphic, getParameter, graphicsNum, gray, grayInt, green, greenInt, greyInt, initGraphic, initObject, isValid, isVisible, layer, layer, name, red, redInt, resetGraphic, server, setColor, setColor, setColor, setColor, setParameter, syncColor, syncGraphic, syncWeight, visible, weight

Methods inherited from class java.lang.Object

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

Field Detail

targetClasses

public java.util.ArrayList<java.lang.Class<? extends IParticleI>> targetClasses

planeDir

public IVecI planeDir

planePt

public IVecI planePt

planeDirCache

public IVec planeDirCache

elasticity

public double elasticity

coefficent for bouncing. when elasticity = 1.0, it bounce back with same velocity and when elasticity = 0.0, it doesn't bounce but just stop at the wall

friction

public double friction

coefficent for tangent part of bouncing. when friction is zero, the tangent part of bounced velocity doesn't change. if friction is 1.0, the tangent part of bounced velocity becomes zero

Constructor Detail

IWall

public IWall(IVecI planeDir,
             IVecI planePt)

IWall

public IWall(IWall wall)

Method Detail

targetClass

public IWall targetClass(java.lang.Class<? extends IParticleI> targetClass)

targetClass

public IWall targetClass(java.lang.Class<? extends IParticleI>... targets)

isTargetClass

public boolean isTargetClass(java.lang.Object obj)

fric

public IWall fric(double fric)

fric

public double fric()

friction

public IWall friction(double fric)

friction

public double friction()

elast

public IWall elast(double el)

elast

public double elast()

elasticity

public IWall elasticity(double el)

elasticity

public double elasticity()

distToCrossing

public double distToCrossing(IParticleI particle)

in case somebody needs to measure distance to the wall.

intersect

public IVec intersect(IVec pt1,
                      IVec pt2)

isCrossing

public boolean isCrossing(IParticleI particle)

isCrossing

public boolean isCrossing(IVec pt1,
                          IVec pt2)

postinteract

public void postinteract(java.util.ArrayList<IDynamics> agents)

Description copied from interface: IDynamics

executed after interact(ArrayList). behavior can be changed by IConfig.enablePostinteract and IConfig.loopPostinteract. If IConfig.loopPostinteract is false, preupdate is executed before post interact (updated 2012/08/26).

Specified by:

postinteract in interface IDynamics

Overrides:

postinteract in class IAgent

closerIntersection

public IVec closerIntersection(IVec pt1,
                               IVec pt2,
                               java.util.ArrayList<IDynamics> agents)

bounce

public void bounce(IParticleI particle,
                   java.util.ArrayList<IDynamics> agents)

Calculate bouncing behavior of particle. With IConfig.checkAdjacentWalls=true, it checks other walls if the particle could collide into others within the same time frame and find which one to collide first. When bouncing, a particle doesn't necesarily stop at the intersection point on the wall because within one time frame, the particle moves distance of particle.vel() * IConfig.updateRate and IWall move the corresponding distance after bouncing. So if a particle is fast, user might not see the moment the particle is touching the wall. Instead, if the particle inherets ITrajectoryI, IWall inserts an intersection point into the trajectory curve.

name

public IWall name(java.lang.String nm)

methods of IObject

Overrides:

name in class IAgent

layer

public IWall layer(ILayer l)

Description copied from class: IObject

Set layer by ILayer object

Overrides:

layer in class IAgent

hide

public IWall hide()

Overrides:

hide in class IAgent

show

public IWall show()

Overrides:

show in class IAgent