226 lines
7.2 KiB
C#
226 lines
7.2 KiB
C#
using UnityEngine;
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using M = System.Math;
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// ReSharper disable InconsistentNaming
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namespace ARLocation
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{
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[System.Serializable]
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public struct DVector3
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{
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public double x;
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public double y;
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public double z;
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public DVector3(Vector3 v)
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{
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x = v.x;
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y = v.y;
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z = v.z;
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}
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/// <summary>
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/// Gets the magnitude of the vector.
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/// </summary>
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/// <value>The magnitude.</value>
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public double magnitude
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{
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get
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{
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return M.Sqrt(x * x + y * y + z * z);
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}
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}
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/// <summary>
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/// Gets the normalized version of this vector.
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/// </summary>
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/// <value>The normalized.</value>
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public DVector3 normalized
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{
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get
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{
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var m = magnitude;
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if (m < 0.00000001)
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{
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return new DVector3();
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}
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return new DVector3(x, y, z) / magnitude;
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}
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="T:DVector3"/> struct.
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/// </summary>
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public DVector3(double newX = 0.0, double newY = 0.0, double newZ = 0.0)
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{
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x = newX;
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y = newY;
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z = newZ;
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}
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/// <summary>
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/// Converts to a Vector3.
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/// </summary>
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/// <returns>The vector2.</returns>
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public Vector3 toVector3()
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{
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return new Vector3((float)x, (float)y, (float)z);
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}
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/// <summary>
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/// Equals the specified v and e.
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/// </summary>
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/// <returns>The equals.</returns>
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/// <param name="v">V.</param>
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/// <param name="e">E.</param>
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public bool Equals(DVector3 v, double e = 0.00005)
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{
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return (M.Abs(x - v.x) <= e) && (M.Abs(y - v.y) <= e) && (M.Abs(z - v.z) <= e);
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}
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/// <summary>
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/// Normalize this instance.
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/// </summary>
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public void Normalize()
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{
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double m = magnitude;
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x /= m;
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y /= m;
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z /= m;
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}
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/// <summary>
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/// Set the specified x and y.
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/// </summary>
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/// <param name="xx"></param>
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/// <param name="yy"></param>
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/// <param name="zz"></param>
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public void Set(double xx = 0.0, double yy = 0.0, double zz = 0.0)
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{
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x = xx;
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y = yy;
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z = zz;
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}
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/// <summary>
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/// Returns a <see cref="T:System.String"/> that represents the current <see cref="T:DVector3"/>.
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/// </summary>
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/// <returns>A <see cref="T:System.String"/> that represents the current <see cref="T:DVector3"/>.</returns>
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override public string ToString()
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{
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return "(" + x + ", " + y + ", " + z + ")";
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}
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/// <summary>
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/// Dot the specified a and b.
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/// </summary>
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/// <returns>The dot.</returns>
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/// <param name="a">The alpha component.</param>
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/// <param name="b">The blue component.</param>
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public static double Dot(DVector3 a, DVector3 b)
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{
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return a.x * b.x + a.y * b.y + a.z * b.z;
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}
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/// <summary>
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/// Distance the specified a and b.
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/// </summary>
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/// <returns>The distance.</returns>
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/// <param name="a">The alpha component.</param>
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/// <param name="b">The blue component.</param>
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public static double Distance(DVector3 a, DVector3 b)
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{
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return M.Sqrt(a.x * b.x + a.y * b.y + a.z * b.z);
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}
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/// <summary>
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/// Lerp the specified a, b and t.
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/// </summary>
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/// <returns>The lerp.</returns>
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/// <param name="a">The alpha component.</param>
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/// <param name="b">The blue component.</param>
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/// <param name="t">T.</param>
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public static DVector3 Lerp(DVector3 a, DVector3 b, double t)
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{
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double s = M.Max(0, M.Min(t, 1));
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return a * (1 - s) + b * s;
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}
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/// <summary>
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/// Computes the product of <c>a</c> and <c>b</c>, yielding a new <see cref="T:DVector3"/>.
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/// </summary>
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/// <param name="a">The <see cref="DVector3"/> to multiply.</param>
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/// <param name="b">The <see cref="double"/> to multiply.</param>
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/// <returns>The <see cref="T:DVector3"/> that is the <c>a</c> * <c>b</c>.</returns>
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public static DVector3 operator *(DVector3 a, double b)
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{
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return new DVector3(
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b * a.x,
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b * a.y,
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b * a.z
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);
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}
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/// <summary>
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/// Computes the product of <c>a</c> and <c>b</c>, yielding a new <see cref="T:DVector3"/>.
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/// </summary>
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/// <param name="a">The <see cref="DVector3"/> to multiply.</param>
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/// <param name="b">The <see cref="double"/> to multiply.</param>
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/// <returns>The <see cref="T:DVector3"/> that is the <c>a</c> * <c>b</c>.</returns>
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public static DVector3 operator *(double b, DVector3 a)
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{
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return new DVector3(
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b * a.x,
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b * a.y,
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b * a.z
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);
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}
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/// <summary>
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/// Computes the division of <c>a</c> and <c>b</c>, yielding a new <see cref="T:DVector3"/>.
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/// </summary>
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/// <param name="a">The <see cref="DVector3"/> to divide (the divident).</param>
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/// <param name="b">The <see cref="double"/> to divide (the divisor).</param>
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/// <returns>The <see cref="T:DVector3"/> that is the <c>a</c> / <c>b</c>.</returns>
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public static DVector3 operator /(DVector3 a, double b)
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{
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return new DVector3(
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a.x / b,
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a.y / b,
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a.z / b
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);
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}
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/// <summary>
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/// Adds a <see cref="DVector3"/> to a <see cref="DVector3"/>, yielding a new <see cref="T:DVector3"/>.
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/// </summary>
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/// <param name="a">The first <see cref="DVector3"/> to add.</param>
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/// <param name="b">The second <see cref="DVector3"/> to add.</param>
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/// <returns>The <see cref="T:DVector3"/> that is the sum of the values of <c>a</c> and <c>b</c>.</returns>
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public static DVector3 operator +(DVector3 a, DVector3 b)
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{
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return new DVector3(
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a.x + b.x,
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a.y + b.y,
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a.z + b.z
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);
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}
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/// <summary>
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/// Subtracts a <see cref="DVector3"/> from a <see cref="DVector3"/>, yielding a new <see cref="T:DVector3"/>.
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/// </summary>
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/// <param name="a">The <see cref="DVector3"/> to subtract from (the minuend).</param>
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/// <param name="b">The <see cref="DVector3"/> to subtract (the subtrahend).</param>
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/// <returns>The <see cref="T:DVector3"/> that is the <c>a</c> minus <c>b</c>.</returns>
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public static DVector3 operator -(DVector3 a, DVector3 b)
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{
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return new DVector3(
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a.x - b.x,
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a.y - b.y,
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a.z - b.z
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);
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}
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}
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}
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