multi-level mosaicJSON

[vincentsarago]

extension to create multiple zoom range mosaicJSON

{
  "bounds": [ 34.8046875, -20.3034175184893, 35.5078125, -19.31114335506464 ],
  "center": [ 35.15625, -19.80728043677697, 10 ],
  {minzoom: 0, maxzoom: 9, : ["links to mosaicJSON"]},
  {minzoom: 10, maxzoom: 14, : ["links to mosaicJSON"]},
  {minzoom: 15, maxzoom: 18, : ["links to mosaicJSON"]},
}

[sharkinsspatial]

👍 I literally typed up this exact issue before looking and then saw this when I went to post it. 😄

[kylebarron]

Do you enforce that no minzoom-maxzoom pairs overlap? It seems like it would be tricky to try to combine overlapping mosaic JSONs at an intermediate zoom.

Right now my workaround for multiple zoom ranges in a mosaicJSON is to have separate Mapbox GL layers that each point to an individual mosaicJSON. One downside of that is that Mapbox only overzooms within a layer. So in my project, if you start at zoom 7, initial Landsat tiles are loaded, and those tiles are overzoomed at layers 7-12 while higher resolution tiles are generated at the higher zooms. But once you cross zoom 12, everything is blank while the NAIP tiles are generated, since it's a separate Mapbox layer.