QGIS » QGIS Application

The node tool, selection happens without regard to the visibility of the object. In the simple case (procedure 1), you can simply set the layer to invisible and show that object selection is still possible. In a more complex case (procedure 2), a portion of a layer is made invisible (with categorized style rules).

With the existing node tool, procedure one is a bit unnatural, because you can only select features on the currently selected layer. The second procedure is a much more natural use case.
One or both of these cases may be OBE by the new node tool in 3.0.

Procedure 1:¶

1. Create a polygon scratch layer
2. Edit the layer
3. Select add feature and insert an object
4. Select the "Node Tool"
5. Toggle layer visibility to hide it
6. Click where a node would be on the newly hidden object

Procedure 2:¶

1. Create a polygon scratch layer
2. Edit the layer
3. Select add feature and insert two objects
4. Select "Open Attribute table"
5. Add a new column and categorize each of the objects uniquely (e.g. 1, 2, ..)
6. Select the "Node Tool"
7. In Properties / Style, set the style to be categorized by the new column and hit "classify"
8. Unselect one of the categories
9. Click where a node would be on the newly hidden object

Expected¶

Visible objects are selectable, but invisible objects are not.

Actual¶

In both cases, the objects which aren't visible are selected to edit.