Class ClusterStreamSource

Readonlymeta

StaticfromBuffer

• fromBuffer(buf: ArrayBuffer): ClusterStreamSource

  In-memory source: the entire asset is already a single ArrayBuffer.

  Parameters

  • buf: ArrayBuffer

  Returns ClusterStreamSource

Staticopen

• open(url: string): Promise<ClusterStreamSource>

  HTTP source: Range-fetch the header, then the full metadata region, leaving page payloads to fetchPage. Requires the host to honor Range (static hosts and CDNs do). The asset must be uncompressed (gzip + Range don't compose; per-page compression is slice S4).

  Parameters

  • url: string

  Returns Promise<ClusterStreamSource>

fetchPage

• fetchPage(pageId: number): Promise<PagePayload>

  Fetch (or slice) one page's geometry, decompressing it if the asset is per-page gzipped.

  Parameters

  • pageId: number

  Returns Promise<PagePayload>