Easing equation function for a circular (sqrt(1-t^2)) easing in: accelerating from zero velocity. - CSharp System

CSharp examples for System:Math Easing Function

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Description

Easing equation function for a circular (sqrt(1-t^2)) easing in: accelerating from zero velocity.

Demo Code


using System;//from   w ww  . java 2  s. c  o  m

public class Main{
        /// <summary>
   /// Easing equation function for a circular (sqrt(1-t^2)) easing in: 
   /// accelerating from zero velocity.
   /// </summary>
   /// <param name="t">Current time in seconds.</param>
   /// <param name="b">Starting value.</param>
   /// <param name="c">Change in value.</param>
   /// <param name="d">Duration of animation.</param>
   /// <returns>The correct value.</returns>
   public static double CircEaseIn( double t, double b, double c, double d )
   {
      return -c * ( Math.Sqrt( 1 - ( t /= d ) * t ) - 1 ) + b;
   }
}

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