com.vwp.j3d.utils.geometry
Class PointParticles

java.lang.Object
  javax.media.j3d.SceneGraphObject
      javax.media.j3d.Node
          javax.media.j3d.Leaf
              javax.media.j3d.Shape3D
                  com.vwp.j3d.utils.geometry.Particles
                      com.vwp.j3d.utils.geometry.PointParticles

public class PointParticles
extends Particles

This class creates and controls a particle animated object which shows a fountain effect using points. It bases on code by Dr. Andrew Davison (http://fivedots.coe.psu.ac.th/~ad/jg)

Field Summary

Fields inherited from class com.vwp.j3d.utils.geometry.Particles

ENABLE_APPEARANCE_MODIFY, ENABLE_PICK_REPORTING

Fields inherited from class javax.media.j3d.Shape3D

ALLOW_APPEARANCE_OVERRIDE_READ, ALLOW_APPEARANCE_OVERRIDE_WRITE, ALLOW_APPEARANCE_READ, ALLOW_APPEARANCE_WRITE, ALLOW_COLLISION_BOUNDS_READ, ALLOW_COLLISION_BOUNDS_WRITE, ALLOW_GEOMETRY_READ, ALLOW_GEOMETRY_WRITE

Fields inherited from class javax.media.j3d.Node

ALLOW_AUTO_COMPUTE_BOUNDS_READ, ALLOW_AUTO_COMPUTE_BOUNDS_WRITE, ALLOW_BOUNDS_READ, ALLOW_BOUNDS_WRITE, ALLOW_COLLIDABLE_READ, ALLOW_COLLIDABLE_WRITE, ALLOW_LOCAL_TO_VWORLD_READ, ALLOW_PICKABLE_READ, ALLOW_PICKABLE_WRITE, ENABLE_COLLISION_REPORTING

Constructor Summary

PointParticles(int flags, float radius, float height, int nps, int delay, javax.media.j3d.Appearance app)
Constructor for a PointParticle object

Method Summary

javax.media.j3d.Behavior	getParticleBehavior() Returns an Behaviour object.
void	setColorFadeIncr(float newIncr) The PointParticles object fades the color (found using the handed over Appearance object) to a darker color for emitted particles.

Methods inherited from class javax.media.j3d.Shape3D

addGeometry, cloneNode, duplicateNode, getAllGeometries, getAppearance, getAppearanceOverrideEnable, getBounds, getCollisionBounds, getGeometry, getGeometry, indexOfGeometry, insertGeometry, intersect, intersect, intersect, numGeometries, removeAllGeometries, removeGeometry, removeGeometry, setAppearance, setAppearanceOverrideEnable, setCollisionBounds, setGeometry, setGeometry

Methods inherited from class javax.media.j3d.Node

cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, cloneTree, getBoundsAutoCompute, getCollidable, getLocalToVworld, getLocalToVworld, getParent, getPickable, setBounds, setBoundsAutoCompute, setCollidable, setPickable

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, getCapability, getCapabilityIsFrequent, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setUserData, updateNodeReferences

Methods inherited from class java.lang.Object

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

Constructor Detail

PointParticles

public PointParticles(int flags,
                      float radius,
                      float height,
                      int nps,
                      int delay,
                      javax.media.j3d.Appearance app)

Constructor for a PointParticle object

Parameters:

flags - specifies which Primitive-flags have to be used for the object creation

radius - specifies some kind of radius the particles have to be calculated within; this value doesn't specifies an exact radius, it depends on the heights value

height - specifies some kind of height the particles have to be calculated within; this value doesn't specifies an exact height, it depends on the radius value

nps - the number of particles which have to be used

delay - specifies the delay in the calculation; the higher the delay is the lower is the speed of the particles

app - specifies an appearance for the object

Method Detail

getParticleBehavior

public javax.media.j3d.Behavior getParticleBehavior()

Returns an Behaviour object. This object has to be attached to a branch group the generated particle object was attached too to let the particle calculation start. Otherwise the Particle object doesn't works like expected.

Specified by:

getParticleBehavior in class Particles

setColorFadeIncr

public void setColorFadeIncr(float newIncr)

The PointParticles object fades the color (found using the handed over Appearance object) to a darker color for emitted particles. This method allowes to specify the strength of this fade effect.

Parameters:

newIncr - specifies the new fade strength, a value of 0 means no fading