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feat: open webKnossos datasets (x, y, z axes, URLs without .zarr) - #28
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webKnossos publishes OME-Zarr layers as c, x, y, z with a transpose codec, under URLs without ".zarr". Kiln rejected the axis order and never tried Zarr for such URLs. - The spatial axes may come in any order within the last three dimensions; shape, chunks, scale, chunk coordinates and strides are read through that order. Nothing is transposed. - A URL is Kiln's sharded format only when it serves a volume.json; anything else is read as OME-Zarr. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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webKnossos publishes OME-Zarr layers as
c, x, y, zwith a transpose codec, under URLs without.zarr. The compatibility sweep showed every reachable webKnossos dataset failing for these two reasons.volume.json. Anything else is read as OME-Zarr, with or without.zarrin it.To test on the preview, Neuromast_WT1 (9216 × 9216 × 1024, uint8, 6 × 6 × 30 nm):
app/?dataset=https%3A%2F%2Fdata-humerus.webknossos.org%2Fdata%2Fzarr3_experimental%2F5b3ce7bb1d0000340240b921%2FcolorTests: metadata and native pyramid from the real Neuromast layer metadata, voxel identity through zarrita with the transpose codec, and the URL detection.
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