Change the visibility of collections locally to viewport with python

Archive Python API
,
1

Hello,

We have a proyect with 2 viewports in the same interface. We need an operator that can click on one of the viewports and change the visibility of some collections locally in the viewport that has been clicked.

We have find the following code for set the view of the viewport in local mode:

bpy.context.space_data.use_local_collections = True

And the only method we have found to change the visibility of a collection:

bpy.ops.object.hide_collection(context, collection_index=i, toggle=True)

That inverts the visibility of the current collection.

The problem is, that this method changes visibility globally and we want to change it locally.

We know that the execution context is important, but since we are executing it from an operator in the tools window of the viewport, we believe that we are doing that correctly.

Other variables as disabled in viewport, have a direct access to the variable via python, example:

bpy.data.collections[“Collection”].hide_viewport = False

But the variable that we need in local does not have it.

Manually, in the interface, it is simple to do, as seen in the image
devtalk_collections

The final question is, is there any way to edit via python, the visibility of the collections locally to the viewport?

2

(moved this to the Python API section since this is not related to Blender development).

You need to pass the viewport that has the local collections enabled as an overriden context argument.

https://docs.blender.org/api/current/bpy.ops.html#overriding-context

1 Like
3

Oh thanks!

We have reviewed it and although we already did the overwriting of our context, there was our problem.

 ctx_override = context.copy()
 ctx_override['area'] = get_area(context, 'VIEW_3D')

The function get_area (…) returned the area of ​​the viewport in which to make the changes, but did not select the correct viewport, since having two in the interface always takes the first one located in the vector, which was a viewport with local visibility of collections deactivated.

Now we differentiate the viewports by their width to make the changes in the correct viewport

4

Hi! I have a similar problem and I’m not able to solve it.
I want to create a new workspace from script, the new workspace has a 3D view in it and I want to turn off local collection visibility only for that view.
I’d like not to use the operator if possible but I don’t know how.
I tried anyway with:

with context.temp_override(area=area):
    bpy.ops.object.hide_collection(collection_index=index)

where area is of type ‘VIEW 3D’ from the new workspace, but got this error:

Traceback (most recent call last):
  File "/home/joaulo/.config/blender/3.4/scripts/addons/blenderboard/operators.py", line 29, in execute
    with context.temp_override(area=area):
TypeError: Area not found in screen

Maybe I am a bit confused about how to manage context change but still don’t get a clue on how to solve.
I know this topic is quite old, maybe there is now a better way to achieve the task to hide a collection locally in a viewport (in a specific workspace, not necessarily the same where the script runs)?

By the way I’ve seen that using the feature in the 3d view sidebar it works as expected but I get (Blender 3.4):
immagine

immagine

and I cannot copy data path because it is greyed out:

immagine