Terminates a picture on a specified workstation.
The identifier returned from calling Ngl.open_wks.
This procedure terminates a picture on the specified workstation (which is also known as advancing the frame). Failing to call this procedure may result in incomplete data being sent to a workstation.
Note that most of the plotting functions, like Ngl.xy, Ngl.vector, Ngl.contour_map, etc, automatically call Ngl.frame for you, unless you set the special resource nglFrame to False, in which case you will eventually need to call Ngl.frame yourself to terminate the picture.