Package org.jfree.chart.plot.dial

Interface DialScale

All Superinterfaces:

DialLayer

All Known Implementing Classes:

StandardDialScale

public interface DialScale
extends DialLayer

A dial scale is a specialised layer that has the ability to convert data values into angles.

Method Summary

Modifier and Type	Method	Description
double	angleToValue(double angle)	Converts an angle (in degrees) to a data value.
double	valueToAngle(double value)	Converts a data value to an angle (in degrees, using the same specification as Java's Arc2D class).

Methods inherited from interface org.jfree.chart.plot.dial.DialLayer

addChangeListener, draw, hasListener, isClippedToWindow, isVisible, removeChangeListener

Method Details

valueToAngle

double valueToAngle(double value)

Converts a data value to an angle (in degrees, using the same specification as Java's Arc2D class).

Parameters:

value - the data value.

Returns:

The angle in degrees.

See Also:

• angleToValue(double)

angleToValue

double angleToValue(double angle)

Converts an angle (in degrees) to a data value.

Parameters:

angle - the angle (in degrees).

Returns:

The data value.

See Also:

• valueToAngle(double)