Hello,
I understood your need, but I’m not sure to understand what you’ve already got. Are you already saving information about last time you loaded it? If yes, is it made of the example code you provided? And what is currently working: everything except the zoom info?
Last but not least, can you confirm that the functions you’re using (e.g SetPosition, SetFocalPoint,…) are from vtkRenderer?And if yes, is there some View Angle function?
I hope I can help with those informations. Thanks
Best regards