Export the canvas image as a specifically named file and location

[notionparallax]

https://www.grasshopper3d.com/forum/topics/save-grashopper-canvas-as-picture-with-python?commentId=2985220%3AComment%3A1798948

as explained here. This will likely be slow, so might need to be a manually triggered event

[notionparallax]

There is some progress on this, but the maths is off. It changes the zoom to capture the image, but doesn't get the right crop box, and it doesn't reset the zoom again.

Metahoper has a component that does this, so that might be helpful, but I'm hesitant to start adding dependencies.