org.apache.commons.numbers.angle

Class PlaneAngleRadians

java.lang.Object

org.apache.commons.numbers.angle.PlaneAngleRadians

public final class PlaneAngleRadians
extends Object

Utility class where all double values are assumed to be in radians.

See Also:

PlaneAngle

Field Summary

Fields

Modifier and Type	Field and Description
static double	PI Value of \( \pi \): 3.141592653589793.
static double	PI_OVER_TWO Value of \( \pi/2 \): 1.5707963267948966.
static double	THREE_PI_OVER_TWO Value of \( 3\pi/2 \): 4.71238898038469.
static double	TWO_PI Value of \( 2\pi \): 6.283185307179586.

Method Summary

Modifier and Type	Method and Description
static double	normalize(double angle, double center) Normalize an angle in an interval of size 2π around a center value.
static double	normalizeBetweenMinusPiAndPi(double angle) Normalize an angle to be in the range [-π, π).
static double	normalizeBetweenZeroAndTwoPi(double angle) Normalize an angle to be in the range [0, 2π).

Methods inherited from class java.lang.Object

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

Field Detail

PI

public static final double PI

Value of \( \pi \): 3.141592653589793.

See Also:

Constant Field Values

TWO_PI

public static final double TWO_PI

Value of \( 2\pi \): 6.283185307179586.

See Also:

Constant Field Values

PI_OVER_TWO

public static final double PI_OVER_TWO

Value of \( \pi/2 \): 1.5707963267948966.

See Also:

Constant Field Values

THREE_PI_OVER_TWO

public static final double THREE_PI_OVER_TWO

Value of \( 3\pi/2 \): 4.71238898038469.

See Also:

Constant Field Values

Method Detail

normalize

public static double normalize(double angle,
                               double center)

Normalize an angle in an interval of size 2π around a center value.

Parameters:

angle - Value to be normalized.

center - Center of the desired interval for the result.

Returns:

a - 2 * k with integer k such that center - pi <= a - 2 * k * pi < center + pi.

normalizeBetweenMinusPiAndPi

public static double normalizeBetweenMinusPiAndPi(double angle)

Normalize an angle to be in the range [-π, π).

Parameters:

angle - Value to be normalized.

Returns:

a - 2 * k with integer k such that -pi <= a - 2 * k * pi < pi.

normalizeBetweenZeroAndTwoPi

public static double normalizeBetweenZeroAndTwoPi(double angle)

Normalize an angle to be in the range [0, 2π).

Parameters:

angle - Value to be normalized.

Returns:

a - 2 * k with integer k such that 0 <= a - 2 * k * pi < 2 * pi.