@urban-toolkit/autk-core

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@urban-toolkit/autk-core / computeIntersectingClusterIds

Function: computeIntersectingClusterIds()

computeIntersectingClusterIds(items): Map<string, number>

Defined in: utils-geojson.ts:399

Computes connected components (clusters) of intersecting geometries and returns a mapping from feature id to cluster id. The input array must contain an application-level identifier for each geometry. Cluster ids are stable only within a single invocation and start at 0.

Parameters

items

object[]

Geometries with application-level identifiers to cluster.

Returns

Map<string, number>

Map from stringified feature id to cluster id (0-based).

Example

const clusters = computeIntersectingClusterIds(features);
// clusters → Map { 'building-1' → 0, 'building-2' → 0, 'building-3' → 1 }