Point Specification

Layer Specification

Point annotations are stored on a napari Points layer.

• Points.data is an (n, d) array of n d-dimensional points.
• Points.metadata["n3d_metadata"] is a dictionary with the following key/value pairs
• annotation_type: point

Zarr Array Specification

The following assumes an n3d file has been read into a variable called n3d using the zarr library

import zarr

zarr.load('points.n3d')

• n3d is an (n, d) zarr.core.Array containing the points
• n3d.attrs["annotation_type"] is "sphere"