deriveRectangleAndScheme()

function deriveRectangleAndScheme(
   crs, 
   xyLimits, 
   levelMetadata, 
   zarrArray, 
   dimIndices
): object;

Computes a Cesium Rectangle and TilingScheme for a Zarr dataset.

Parameters

Parameter	Type	Description
`crs`	`string`	A CRS identifier registered with proj4. See CRS.
`xyLimits`	`XYLimitsProps`	Min/max X/Y values in the dataset's CRS. See XYLimitsProps.
`levelMetadata`	`Map`<`number`, `ZarrLevelMetadata`>	Per-resolution metadata (width/height).
`zarrArray`	`Array`<`any`>	The Zarr array containing the data.
`dimIndices`	`DimIndicesProps`	Mapping of dimension keys to their array indices. See DimIndicesProps.

object

{ rectangle, tilingScheme }

rectangle: Rectangle;

tilingScheme: TilingScheme;

Behavior notes:

The rectangle is expanded by half a pixel in all directions to avoid edge clipping.
Pixel resolution is estimated from either levelMetadata.get(0) or the Zarr array shape.
Source bounds are densified and transformed through the shared proj4 resolver.
If any computation fails, the function falls back to a full-world geographic scheme.
If latitude limits are reversed, they are swapped automatically.