Provides read access to a Neuroglancer Precomputed annotation dataset.

Constructors¶

AnnotationReader(base_spec: Any | Spec, ...)

Constructs an annotation reader.

I/O¶

get_within_spatial_bounds(*, ...) -> Iterator[Annotation]

Returns an iterator over the annotations within the specified bounds.

by_id: AnnotationMap[int, Annotation]

Annotations indexed by their 64-bit annotation id.

relationships: dict[str, AnnotationMap[int, list[Annotation]]]

Related segment maps for each relationship.

Accessors¶

coordinate_space: CoordinateSpace

Coordinate space of annotations.

staleness_bound: float

Staleness bound to use when reading.

annotation_type: Literal[
    "point",
    "line",
    "polyline",
    "axis_aligned_bounding_box",
    "ellipsoid",
]

Type of annotations.

metadata: dict[str, Any]

Raw Precomputed Annotation JSON metadata.

properties: list[AnnotationPropertySpec]

Per-annotation properties included in the dataset.

lower_bound: tuple[float, ...]

Lower bound of all annotations within coordinate_space.

upper_bound: tuple[float, ...]

Upper bound of all annotations within coordinate_space.