public static DxfVector RightVectorFromNormal(DxfVector normal) { // compute a right (x-axis) vector from a given normal as per the Arbitrary Axis Algorithm // http://help.autodesk.com/view/OARX/2020/ENU/?guid=GUID-E19E5B42-0CC7-4EBA-B29F-5E1D595149EE var axisEpsilon = 1.0 / 64.0; if (Math.Abs(normal.X) < axisEpsilon && Math.Abs(normal.Y) < axisEpsilon) { return(YAxis.Cross(normal)); } else { return(ZAxis.Cross(normal)); } }