Interpolator (gephi 0.9.3 API)

java.lang.Object
- org.gephi.appearance.api.Interpolator

Direct Known Subclasses:

Interpolator.BezierInterpolator
```
public abstract class Interpolator
extends Object
```
Abstract class that defines the single interpolate(float) method. This abstract class is implemented by built-in interpolators accessible as static classes.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Interpolator.BezierInterpolator
Bezier curve interpolator.

Field Summary

Fields
Modifier and Type	Field	Description
`static Interpolator`	`LINEAR`	Linear interpolation `x = interpolate(x)`
`static Interpolator`	`LOG2`	Log2 interpolation `Math.log(1 + x)/Math.log(2) = interpolate(x)`

Constructor Summary

Constructors
Constructor Description

Interpolator()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract float`	`interpolate(float x)`	This function takes an input value between 0 and 1 and returns another value, also between 0 and 1.
`static Interpolator`	`newBezierInterpolator(float px1, float py1, float px2, float py2)`	Builds a bezier interpolator with two control points (px1, py1) and (px2, py2).

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - LINEAR
```
public static final Interpolator LINEAR
```
    Linear interpolation x = interpolate(x)
  - LOG2
```
public static final Interpolator LOG2
```
    Log2 interpolation Math.log(1 + x)/Math.log(2) = interpolate(x)
- Constructor Detail
  - Interpolator
```
public Interpolator()
```
- Method Detail
  - newBezierInterpolator
```
public static Interpolator newBezierInterpolator(float px1,
                                                 float py1,
                                                 float px2,
                                                 float py2)
```
    Builds a bezier interpolator with two control points (px1, py1) and (px2, py2). The points should all be in range [0, 1].
    
    Parameters:
    
    px1 - the x-coordinate of first control point, between [0, 1]
    
    py1 - the y-coordinate of first control point, between [0, 1]
    
    px2 - the x-coordinate of second control point, between [0, 1]
    
    py2 - the y-coordinate of second control point, between [0, 1]
    
    Returns:
    
    new bezier interpolator
  - interpolate
```
public abstract float interpolate(float x)
```
    This function takes an input value between 0 and 1 and returns another value, also between 0 and 1.
    
    Parameters:
    
    x - a value between 0 and 1
    
    Returns:
    
    a value between 0 and 1. Values outside of this boundary may be clamped to the interval [0,1] and cause undefined results.