Refresh spline doesn't seem to be working

[dazz777]

as discussed above it's null to start with

It is null even after using the code I suggested?
drawtaxiCP0002 = drawing_spline.Add ();

Hi, Sorry It so long to reply ( got sidetracked with other things ), yes this works I just needed to change drawtaxiCP0002 to a curvysplineSegment 
( it was a Gameobject !!) but as I can get and set the handles in/out position and I assume change the positon of the control point then thats fine.

Thanks.