tile Count
Total number of MVT tiles launchBulkRetrieval would fetch for sector across the resolution range — the slippy analog of LevelSet.tileCount, for sizing a download before committing to it. Uses the same zoom mapping and clamp as launchBulkRetrieval, so the result matches the total later reported to that call's onProgress.
Total number of OSM-Buildings feature tiles launchBulkRetrieval would fetch for sector — the slippy analog of LevelSet.tileCount, for sizing a download before committing to it. Counts a single slippy zoom (OsmBuildingsLayer.tileZoom), the only zoom the renderer reads.