Spline to Polyline (Line& Arc)

Hello Everyone,

In order to define the 2D or 3D Spline that I created in catia to CAM G codes, I need to convert it into polyline or arc and line. There were commands available for this operation in Autocad and NX, but I could not do this in CATIA. 

Has anyone been able to find a solution to this kind of problem before? Or do you have any solution suggestions?

Thanks for your help.