# ID 120370

Selection/deselection of spline interpolation wile free form mode is active.
Description | When HSC function (#HSC[]) is active, the Akima or B-Spline-Interpolation cannot additionally be selected (G151) or deselected (G150). For more information on spline function, see [PROG// Section: Akima spline interpolation]. [PROG// Section: B spline interpolation].
Response | Class | 2 | Program execution stop.
Solution | Class | 6 | Before selecting the spline function, deselect the HSC function via #HSC[OFF].
Error type | 1, Error message from NC program.