Class Evaluator<T>
java.lang.Object
org.jdesktop.animation.timing.interpolation.Evaluator<T>
This class is used by KeyValues to calculate intermediate values for
specific types.
This class has built-in support for the following data types:
- java.lang.Byte
- java.lang.Short
- java.lang.Integer
- java.lang.Long
- java.lang.Float
- java.lang.Double
- java.awt.Color
- java.awt.geom.Point2D
- java.awt.geom.Line2D
- java.awt.geom.Dimension2D
- java.awt.geom.Rectangle2D
- java.awt.geom.RoundRectangle2D
- java.awt.geom.Ellipse2D
- java.awt.geom.Arc2D
- java.awt.geom.QuadCurve2D
- java.awt.geom.CubicCurve2D
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Constructor Summary
Constructors -
Method Summary
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Constructor Details
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Evaluator
public Evaluator()
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Method Details
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evaluate
Abstract method to evaluate between two boundary values. Built-in implementations all use linear parametric evaluation:v = v0 + (v1 - v0) * fraction
Extenders of Evaluator will need to override this method and do something similar for their own types. Note that this mechanism may be used to create non-linear interpolators for specific value types, although it may besimpler to just use the linear/parametric interpolation technique here and perform non-linear interpolation through custom Interpolators rather than perform custom calculations in this method; the point of this class is to allow calculations with new/unknown types, not to provide another mechanism for non-linear interpolation.
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