toxi.math
Class BezierInterpolation

java.lang.Object
  toxi.math.BezierInterpolation

All Implemented Interfaces:

InterpolateStrategy

public class BezierInterpolation
extends java.lang.Object
implements InterpolateStrategy

Bezier curve interpolation with configurable coefficients. The curve parameters need to be normalized offsets relative to the start and end values passed to the interpolate(float, float, float) method, but can exceed the normal 0 .. 1.0 interval. Use symmetrical offsets to create a symmetrical curve, e.g. this will create a curve with 2 dips reaching the minimum and maximum values at 25% and 75% of the interval...

BezierInterpolation b=new BezierInterpolation(3,-3);

The curve will be a straight line with this configuration:

BezierInterpolation b=new BezierInterpolation(1f/3,-1f/3);

Field Summary

float	c1
float	c2

Constructor Summary

BezierInterpolation(float h1, float h2)

Method Summary

float	interpolate(float a, float b, float t) Implements an interpolation equation.
void	setCoefficients(float a, float b)

Methods inherited from class java.lang.Object

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

Field Detail

c1

public float c1

c2

public float c2

Constructor Detail

BezierInterpolation

public BezierInterpolation(float h1,
                           float h2)

Method Detail

interpolate

public float interpolate(float a,
                         float b,
                         float t)

Description copied from interface: InterpolateStrategy

Implements an interpolation equation.

Specified by:

interpolate in interface InterpolateStrategy

Parameters:

a - current value

b - target value

t - normalized interpolation factor (0.0 .. 1.0)

Returns:

interpolated value

setCoefficients

public void setCoefficients(float a,
                            float b)