QueryBackend

Minimal interface required by the framework-neutral convenience queries.

Methods

queryData()

queryData(
   geometry, 
   selectors?, 
options?): Promise<QueryResult>;

Parameters

Parameter	Type
geometry	QueryPointGeometry
selectors?	ZarrSelectors
options?	QueryOptions

Returns

Promise<QueryResult>

---

queryPoints()?

optional queryPoints(
   positions, 
   selectors?, 
options?): Promise<QueryResult[]>;

Optional chunk-aware batch lookup used by transects.

Parameters

Parameter	Type
positions	QueryPosition[]
selectors?	ZarrSelectors
options?	TransectQueryOptions

Returns

Promise<QueryResult[]>

Properties

dimensionValues

dimensionValues: DimensionValues;

---

queryDimensionValues?

readonly optional queryDimensionValues: DimensionValues;

Coordinate values addressable by the current in-memory query backend. Defaults to dimensionValues; subset-backed providers can expose a narrower set without hiding the complete dataset coordinates.

---

queryIndexOffsets?

readonly optional queryIndexOffsets: Record<string, number>;

Global index represented by local coordinate index zero, for subset-backed providers.

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selectors

selectors: ZarrSelectors;