iicm.vrml.pw
Class Interpolator

java.lang.Object
  iicm.vrml.pw.Node
      iicm.vrml.pw.Interpolator

All Implemented Interfaces:

GotEventCallback

Direct Known Subclasses:

ColorInterpolator, CoordinateInterpolator, NormalInterpolator, OrientationInterpolator, PositionInterpolator, ScalarInterpolator

public abstract class Interpolator
extends Node
implements GotEventCallback

Interpolator base class

Field Summary

private int	interNo_
private float[]	value

Fields inherited from class iicm.vrml.pw.Node

DEF_KEYWORD, EXTERNPROTO_KEYWORD, fieldIScontent, newISname, newISnum, objname, PROTO_KEYWORD, ROUTE_KEYWORD, SCRIPT_KEYWORD, subfields, USE_KEYWORD, userdata

Constructor Summary

Interpolator()

Method Summary

void	gotEventCB(Field field, double timestamp)
(package private) abstract Field	interpolate() derived class will call interpolateFloatvalues with appropriate arguments.
(package private) void	interpolateFloatvalues(float fraction, float[] keys, int lenKeys, float[] keyvals, int lenKVals, float[] value, int valsperkey) calculates the next interpolation-step.
(package private) void	linearInterpolation(float frac, float key1, float key2, float[] val, int offs, float[] value, int valsperkey) linear interpolation of valsperkey values. fraction frac lies between key1 and key2.

Methods inherited from class iicm.vrml.pw.Node

addField, addRoute, atCurrLine, createInstanceFromName, deleteRoute, getEvent, nodeName, readFields, readNode, readNodeBody, readNodeBody, tab, traverse, traverseNode, writeNode, writeSubfield, writeSubfields, writeX3dISfields, writeX3dNode, writeX3dNode, writeX3dNode, writeX3dSubfield, writeX3dSubfields, writeX3dSubfields

Methods inherited from class java.lang.Object

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

Field Detail

interNo_

private int interNo_

value

private float[] value

Constructor Detail

Interpolator

public Interpolator()

Method Detail

linearInterpolation

void linearInterpolation(float frac,
                         float key1,
                         float key2,
                         float[] val,
                         int offs,
                         float[] value,
                         int valsperkey)

linear interpolation of valsperkey values. fraction frac lies between key1 and key2. out: valsperkey interpolated values starting from index offs * valsperkey.

interpolate

abstract Field interpolate()

derived class will call interpolateFloatvalues with appropriate arguments.

Returns:

field to which event should be sent (values changed) or null, if there are no event receivers.

interpolateFloatvalues

void interpolateFloatvalues(float fraction,
                            float[] keys,
                            int lenKeys,
                            float[] keyvals,
                            int lenKVals,
                            float[] value,
                            int valsperkey)

calculates the next interpolation-step. searches fraction in keys[] and sets value[] (valsperkey elements) to the according interpolated values out of keyvals (groups of valsperkey elements each). caller must ensure that value[] is large enough may hold valsperkey elements

gotEventCB

public void gotEventCB(Field field,
                       double timestamp)

Specified by:

gotEventCB in interface GotEventCallback