EDU.gatech.cc.is.clay
Class va_PersistBlend_va

java.lang.Object
  |
  +--EDU.gatech.cc.is.clay.Node
        |
        +--EDU.gatech.cc.is.clay.NodeVec2Array
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              +--EDU.gatech.cc.is.clay.va_PersistBlend_va

public class va_PersistBlend_va
extends NodeVec2Array

Remembers Vec2s for a given period of time. If a new vector arrives, close in value to one of the existing Vec2s, they are merged according to a "blending".

For detailed information on how to configure behaviors, see the Clay page.

Copyright (c)1997, 1998 Tucker Balch


Field Summary
static boolean DEBUG
          Turn debug printing on or off.
static int MAX_VECS
          Maximum number of Vec2s to be remembered.
 
Fields inherited from class EDU.gatech.cc.is.clay.Node
DEBUG, embedded_nodes
 
Constructor Summary
va_PersistBlend_va(double p, double mr, double a, NodeVec2Array im1)
          Instantiate a va_PersistBlend_va schema.
 
Method Summary
 Vec2[] Value(long timestamp)
          Return a Vec2Array that is the persistance.
 
Methods inherited from class EDU.gatech.cc.is.clay.Node
initTrial
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

DEBUG

public static final boolean DEBUG
Turn debug printing on or off.

MAX_VECS

public static final int MAX_VECS
Maximum number of Vec2s to be remembered.
Constructor Detail

va_PersistBlend_va

public va_PersistBlend_va(double p,
                          double mr,
                          double a,
                          NodeVec2Array im1)
Instantiate a va_PersistBlend_va schema.
Parameters:
p - double, the persistence in seconds.
mr - double, how close things must be to be considered the same.
alpha - double, how much to weight old objects (must be 0=>alpha<=1).
im1 - NodeVec2Array, the node that generates a list of items to filter.
Method Detail

Value

public Vec2[] Value(long timestamp)
Return a Vec2Array that is the persistance.
Overrides:
Value in class NodeVec2Array
Parameters:
timestamp - long, only get new information if timestamp > than last call or timestamp == -1.
Returns:
the array.