BezierCurves.BezierCurve3D.GetCubicSegment C# (CSharp) Method

        public void GetCubicSegment(float time, out BezierPoint3D startPoint, out BezierPoint3D endPoint, out float timeRelativeToSegment)
        {
            startPoint = null;
            endPoint = null;
            timeRelativeToSegment = 0f;

            float subCurvePercent = 0f;
            float totalPercent = 0f;
            float approximateLength = this.GetApproximateLength();
            int subCurveSampling = (this.Sampling / (this.KeyPointsCount - 1)) + 1;

            for (int i = 0; i < this.KeyPointsCount - 1; i++)
            {
                subCurvePercent = BezierCurve3D.GetApproximateLengthOfCubicCurve(this.KeyPoints[i], this.KeyPoints[i + 1], subCurveSampling) / approximateLength;
                if (subCurvePercent + totalPercent > time)
                {
                    startPoint = this.KeyPoints[i];
                    endPoint = this.KeyPoints[i + 1];

                    break;
                }

                totalPercent += subCurvePercent;
            }

            if (endPoint == null)
            {
                // If the evaluated point is very near to the end of the curve
                startPoint = this.KeyPoints[this.KeyPointsCount - 2];
                endPoint = this.KeyPoints[this.KeyPointsCount - 1];

                totalPercent -= subCurvePercent; // We remove the percentage of the last sub-curve
            }

            timeRelativeToSegment = (time - totalPercent) / subCurvePercent;
        }