Class ZOMathUtil

Inheritance

System.Object

ZOMathUtil

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: ZO.Math

Assembly: Unity.ZeroSim.dll

Syntax

public static class ZOMathUtil

Methods

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cartesianToPolar(Vector2)

Convert 2d cartesian coordinates to polar coordinates.

Declaration

public static Vector2 cartesianToPolar(Vector2 point)

Parameters

Type	Name	Description
UnityEngine.Vector2	point	2D point

Returns

Type	Description
UnityEngine.Vector2	2D polar coordinates.

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DegreesToRadians(Double)

Convert double degrees to radians.

Declaration

public static double DegreesToRadians(double degrees)

Parameters

Type	Name	Description
System.Double	degrees	Input angle in degrees.

Returns

Type	Description
System.Double	Output angle in radians.

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FindOrthonormals(Vector3, out Vector3, out Vector3)

Get the orthonormal basis given a start vector.

Declaration

public static void FindOrthonormals(Vector3 normal, out Vector3 orthonormal1, out Vector3 orthonormal2)

Parameters

Type	Name	Description
UnityEngine.Vector3	normal	The start vector.
UnityEngine.Vector3	orthonormal1	The first ortho normal vector to the start vector.
UnityEngine.Vector3	orthonormal2	The second ortho normal vector to the start vector and the first ortho vector.

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FindQuaternionTwist(Quaternion, Vector3)

Calculate the quaternion twist about an axis. https://stackoverflow.com/questions/3684269/component-of-a-quaternion-rotation-around-an-axis

Declaration

public static float FindQuaternionTwist(Quaternion q, Vector3 axis)

Parameters

Type	Name	Description
UnityEngine.Quaternion	q	The quaternion.
UnityEngine.Vector3	axis	The axis.

Returns

Type	Description
System.Single	The twist in radians.

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isApproximatelyEqual(Double, Double, Double)

Checks if two double values are approximately equal.

Declaration

public static bool isApproximatelyEqual(double a, double b, double tolerance = 4.94065645841247E-324)

Parameters

Type	Name	Description
System.Double	a	First value.
System.Double	b	Second value.
System.Double	tolerance	The epsilon cut off.

Returns

Type	Description
System.Boolean

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isApproximatelyZero(Double, Double)

Checks if a value is approximately zero given an epsilon.

Declaration

public static bool isApproximatelyZero(double a, double tolerance = 4.94065645841247E-324)

Parameters

Type	Name	Description
System.Double	a	The value
System.Double	tolerance	The epsilon cut off.

Returns

Type	Description
System.Boolean	True if zero otherwise false.

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lowPassFilter(Single, Single, Single)

Simple low pass filter on float.

Declaration

public static float lowPassFilter(float currentValue, float prevValue, float alpha)

Parameters

Type	Name	Description
System.Single	currentValue	The current value.
System.Single	prevValue	The previous value.
System.Single	alpha	Weight 0..1 where greater value biases towards the current value.

Returns

Type	Description
System.Single	Weighted value.

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lowPassFilter(Vector3, Vector3, Single)

Simple low pass filter on Vector3

Declaration

public static Vector3 lowPassFilter(Vector3 currentValue, Vector3 prevValue, float alpha)

Parameters

Type	Name	Description
UnityEngine.Vector3	currentValue	The current value.
UnityEngine.Vector3	prevValue	The previous value.
System.Single	alpha	Weight 0..1 where greater value biases towards the current value.

Returns

Type	Description
UnityEngine.Vector3	Weighted value.

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lowPassFilter(Vector3, ref Vector3, Single, Boolean)

Declaration

public static Vector3 lowPassFilter(Vector3 targetValue, ref Vector3 intermediateValueBuf, float factor, bool init)

Parameters

Type	Name	Description
UnityEngine.Vector3	targetValue
UnityEngine.Vector3	intermediateValueBuf
System.Single	factor
System.Boolean	init

Returns

Type	Description
UnityEngine.Vector3

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lowPassFilterQuaternion(Quaternion, Quaternion, Single, Boolean)

Declaration

public static Quaternion lowPassFilterQuaternion(Quaternion intermediateValue, Quaternion targetValue, float factor, bool init = false)

Parameters

Type	Name	Description
System.Numerics.Quaternion	intermediateValue
System.Numerics.Quaternion	targetValue
System.Single	factor
System.Boolean	init

Returns

Type	Description
System.Numerics.Quaternion

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RadiansToDegrees(Double)

Converts double radians to degrees.

Declaration

public static double RadiansToDegrees(double angle)

Parameters

Type	Name	Description
System.Double	angle	Input angle in radians.

Returns

Type	Description
System.Double	Outpus angle in degrees.