Python Sop with Code Section that creates Geometry, cook on button press

[LaidlawFX]

Hello,

Currently I have a python sop where in the code section it creates geometry each time the node cooks. I would like it to only cook/update on a button press, and cache it in-between pressings. Is this possible, and how would you structure the code to do it?

Thanks,

-Ben

Edit: https://www.sidefx.com/forum/topic/25493/ - Similar thread. 

Edited June 23, 2017 by LaidlawFX
Similar Thread Found

[Atom]

I believe the python node will naturally cache the last generate. Try dropping in a button and activating code.

ap_python_generate_button.hiplc

[LaidlawFX]

The button call, the print and other functions run via button call. Thanks . However, the geometry creation part does not work. It errors on the Geometry Creation. 

GeometryPermissionError: Geometry is read-only.

Edit: I attached an example hip file with the original concept and the new button update.

PythonSopCreateGeo.hip

Edited June 23, 2017 by LaidlawFX
Added example file.

[Atom]

Why not use a standard FileCache node?

Wouldn't Save To Disk simply be the same implementation as your Python button?

[LaidlawFX]

Overall: I'm trying to limit unnecessary cooks of this create geometry generator as it is relatively expensive. I don't want traditional work, or even on creation, to cook the node as you will incur this cost. 

As for FileCache node, as far as this system, that will happen down the road. I just wanted to clean up this code/generator as much as possible internally. 

I was thinking about using a switching mechanism between a null and the generator, with a following cache node to store it after the cook, but that is a bunch of events that needs to happen. I was kind of hoping there was a python with button equivalent for it. 

  

[Atom]

I guess you could bypass the node after it kicks out it's geometry and is cached to disk. Then on creation should not run. But I have not tested that.