Metadata missing in quadfeather-generated files

[hibiki333155555]

Hi!, 😀

I noticed that the feather files generated by quadfeather do not include metadata, such as extent or children, when I use deepscatter.

Steps to Reproduce

python3 -m pip install git+https://github.com/bmschmidt/quadfeather
quadfeather-test-data 1_000_000
quadfeather --files tmp.csv --tile_size 50_000 --destination tiles

import pyarrow.feather as feather
table = feather.read_table("tiles/0/0/0.feather")
print("Metadata:", table.schema.metadata)

Output:

Schema: x: float
y: float
position: string
class: dictionary<values=string, indices=int16, ordered=0>
quantity: float
date: string
ix: uint64
Metadata: None

Expected Behavior

Feather files should include metadata such as:

• extent: The bounding box of the tile.
• children: References to child tiles.

If metadata generation is supported but requires additional steps, updated documentation would be greatly appreciated.

Thank you!

[hibiki333155555]

I am trying to follow the quickstart guide for deepscatter, but I am unable to visualize the tiles generated by quadfeather-test-data. Could this issue be related to my environment setup? Any guidance or suggestions would be greatly appreciated.

[hibiki333155555]

It turned out that the issue was related to the version of quadfeather. Once I switched to the version(1.1.2), the problem was resolved.😀

[masteryachty]

@bmschmidt Just want to raise this to your attention as It was very annoying trying to debug many issues to find out the latest version breaks deepscatter demo. I really apreciate the project !!

[rhodesch]

It turned out that the issue was related to the version of quadfeather. Once I switched to the version(1.1.2), the problem was resolved.😀

@hibiki333155555 where did you find version(1.1.2)? It looks like I'm having the same issue

[rhodesch]

version 1.1.2 worked for me as well - it had the extents and children in the metadata. The commit I tried was here 6336d06