Hi,
Thanks for replying. I was using:
```
from numpy.lib import recfunctions as rfn
xyz = rfn.structured_to_unstructured(atoms[["x", "y", "z"]])
xyz = xyz @ transform.T
atoms[["x", "y", "z"]] = rfn.unstructured_to_structured(
xyz, dtype=atoms[["x", "y", "z"]].dtype
)
```
But I think this is cr
Hi Abel,
As long as your x,y,z are next to each other, you can transform from
your structure to an unstructured array via a view, which has very
little cost. Though you need to be a bit careful with offsets, etc., if
there are also other elements in the structured dtype.
Example, with some extra
