SuperClusterViewportAlgorithm at zoom 0-3 not working.

[Ketec]

It does not seem to render starting at zoom 4. But I need zoom 3 for the world view.
Does it somehow ignore/filter out or not get viewport at these zoom levels?

new SuperClusterViewportAlgorithm({radius: 150, maxZoom: 16, viewportPadding: 50, minZoom: 3, minPoints: 5})

It looks like the bounds are broken at zoom 3?

I resorted to temporary hack, but I assume something is not correct in the getPaddedViewport math:

class SharedSuperClusterViewportAlgorithm extends SuperClusterViewportAlgorithm {
  public cluster({ map, mapCanvasProjection }: AlgorithmInput): Cluster[] {
    let state: SuperClusterViewportState;

    if (map.getZoom() <= 3) {
      state = {
        zoom: Math.round(map.getZoom()),
        view: [-180, -90, 180, 90]
      };
    } else {
      state = {
        zoom: Math.round(map.getZoom()),
        view: getPaddedViewport(
          map.getBounds(),
          mapCanvasProjection,
          this.viewportPadding
        ),
      };
    }
    
    return this.superCluster
      .getClusters(state.view, state.zoom)
      .map((feature: ClusterFeature<{ marker: any }>) =>
        this.transformCluster(feature)
      );
  }
}

[wangela]

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@Ketec Thank you for opening this issue. 🙏
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