private static Autodesk.DesignScript.Geometry.Helix Convert(Autodesk.Revit.DB.CylindricalHelix crv)
{
if (crv.IsRightHanded)
{
// a negative pitch and axis vector produces helix in opposite direction
return(Autodesk.DesignScript.Geometry.Helix.ByAxis(crv.BasePoint.ToPoint(), (-1.0 * crv.ZVector).ToVector(),
crv.GetEndPoint(0).ToPoint(), -crv.Pitch, (crv.Height / crv.Pitch) * 360.0));
}
// clockwise is default
return(Autodesk.DesignScript.Geometry.Helix.ByAxis(crv.BasePoint.ToPoint(), crv.ZVector.ToVector(),
crv.GetEndPoint(0).ToPoint(), crv.Pitch, (crv.Height / crv.Pitch) * 360.0));
}
