Dynamically set overview zoom levels

[eliabieri]

Overview

I'm developing an offline first application that shows POIs on a map. I want to create a .pmtiles extract that contains a certain area of each POI but also provide the user with an overview (on larger zoom levels) while having the smallest file size possible.

Steps I've taken

1. Create a GeoJSON MultiPolygon where each polygon is a circle with a certain radius around every POI
2. Extract a .pmtile file using the pmtiles utility.

Issues I'm facing

• The overview zoom levels defaults lead to empty spots in the map.
  • The POIs are all located in southern Germany
  • I want an overview map up to a certain zoom level to be available for this whole region while having the full zoom dataset for areas around POIs

I appreciate every idea on how I could get this problem solved.

[bdon]

(Moved to discussion)

How are you creating your tileset from GeoJSON? You may want to use https://github.com/felt/tippecanoe with advanced options and remove all unnecessary features to pack more POIs in overview levels.