Il 01/01/2023 19:22, Francesco Pelullo ha scritto:
By my exoeriences, this algorithm works _only_ if source layer has at
almost one feature.
I think this expected and described in the docs [1]:
"""
Geometry by expression
Updates existing geometries (or creates new geometries) for input
features by use of a QGIS expression.
"""
You can update or create geometries only for the input feature(s).
Best regards.
Andrea
[1]
https://docs.qgis.org/3.22/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#geometry-by-expression
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