Undo via Python?

[wojtek]

Is it possible to Undo/Redo via python?

[wojtek]

Pretty please? 

[Alexey Pasumansky]

Hello wojtek,

Which operations do you need to Undo via Python?

[wojtek]

Hello wojtek,

Which operations do you need to Undo via Python?

Essentially what I'm doing is the following:

1. Select a section of a model I want to edit in an external package
2. Crop selection (works via script)
3. Export & Import to the external package (works via script)
after editing:
4. Import edited section as a new model (works via script)
5. Go back to the original model (works via script)
6. Undo the Cropping
7. Delete original selection

So I'm stuck at 6 and have been doing this part manually instead.

[wojtek]

Hey, any hope for Undo in the api for the next 1.8.0 build? Pretty please

[Alexey Pasumansky]

Hello wojtek,

It seems that implementation of undo/redo commands via API wouldn't be straightforward, so I can suggest to consider some workaround for your task, i.e. duplicate the original model and then, when performing the selection of mesh faces to be cropped, apply the same face selection to the duplicated model (it should have the same order of the faces), then crop faces in the original model and remove faces in the duplicated model.

[wojtek]

Hello wojtek,

It seems that implementation of undo/redo commands via API wouldn't be straightforward, so I can suggest to consider some workaround for your task, i.e. duplicate the original model and then, when performing the selection of mesh faces to be cropped, apply the same face selection to the duplicated model (it should have the same order of the faces), then crop faces in the original model and remove faces in the duplicated model.

Thanks for looking into it, I'll try your workaround though I assume it will be pretty slow with big geometry (duplication takes a while) so undo+delete manually might still make more sense.

[Seboon]

Hello Wojtek,

Try this in your script :

for widget in QtWidgets.QApplication.allWidgets():
    if widget.inherits("QToolBar") and widget.windowTitle() != "Actions":
        if widget.isEnabled():
            widget.actions()[4].trigger()

Please, let me know if it worked.