Geographic Information Systems Asked on December 25, 2020
I have a feature
table in PostgreSQL and I need to calculate the XYZ tiles that the queried features encompass.
So my query would look something like this:
SELECT getTiles(geom, min_zoom, max_zoom)
FROM feature
And I want it to return a XYZ array for each tile:
[167,367,10],[159,368,10],[160,368,10],[161,368,10],[162,368,10]...
How can I calculate the tile XYZ values like this pseudocode getTiles
? I’ve looked through the PostGIS documentation and Mapbox’s Postgis utils but haven’t found examples of this. I feel like such a function probably already exists in some applications.
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