92 lines
2.0 KiB
C#
92 lines
2.0 KiB
C#
using System;
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using System.Windows;
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namespace Microsoft.Research.DynamicDataDisplay
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{
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public static class MathHelper
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{
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public static long Clamp(long value, long min, long max)
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{
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return Math.Max(min, Math.Min(value, max));
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}
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public static double Clamp(double value, double min, double max)
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{
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return Math.Max(min, Math.Min(value, max));
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}
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/// <summary>Clamps specified value to [0,1]</summary>
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/// <param name="d">Value to clamp</param>
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/// <returns>Value in range [0,1]</returns>
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public static double Clamp(double value)
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{
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return Math.Max(0, Math.Min(value, 1));
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}
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public static int Clamp(int value, int min, int max)
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{
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return Math.Max(min, Math.Min(value, max));
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}
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public static Rect CreateRectByPoints(double xMin, double yMin, double xMax, double yMax)
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{
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return new Rect(new Point(xMin, yMin), new Point(xMax, yMax));
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}
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public static double Interpolate(double start, double end, double ratio)
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{
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return start * (1 - ratio) + end * ratio;
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}
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public static double RadiansToDegrees(this double radians)
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{
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return radians * 180 / Math.PI;
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}
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public static double DegreesToRadians(this double degrees)
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{
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return degrees / 180 * Math.PI;
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}
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/// <summary>
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/// Converts vector into angle.
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/// </summary>
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/// <param name="vector">The vector.</param>
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/// <returns>Angle in degrees.</returns>
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public static double ToAngle(this Vector vector)
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{
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return Math.Atan2(-vector.Y, vector.X).RadiansToDegrees();
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}
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public static Point ToPoint(this Vector v)
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{
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return new Point(v.X, v.Y);
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}
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public static bool IsNaN(this double d)
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{
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return Double.IsNaN(d);
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}
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public static bool IsNotNaN(this double d)
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{
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return !Double.IsNaN(d);
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}
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public static bool IsFinite(this double d)
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{
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return !Double.IsNaN(d) && !Double.IsInfinity(d);
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}
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public static bool IsInfinite(this double d)
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{
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return Double.IsInfinity(d);
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}
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public static bool AreClose(double d1, double d2, double diffRatio)
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{
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return Math.Abs(d1 / d2 - 1) < diffRatio;
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}
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}
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}
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