8-5. Add the remaining NUTS levels¶
One level of boundaries works, but the experience is much better when the detail follows the zoom. Add the three finer NUTS levels the same way.
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Add a statistics source for NUTS 1 (major regions):
https://esa-apex.s3.eu-west-1.amazonaws.com/APEX-example-data/HI-RES-NUTS/stats.esa_worldcover_2021.nuts_2024.epsg4326.level01.fgb -
Add a statistics source for NUTS 2 (basic regions):
https://esa-apex.s3.eu-west-1.amazonaws.com/APEX-example-data/HI-RES-NUTS/stats.esa_worldcover_2021.nuts_2024.epsg4326.level02.fgb -
Add a statistics source for NUTS 3 (small regions):
https://esa-apex.s3.eu-west-1.amazonaws.com/APEX-example-data/HI-RES-NUTS/stats.esa_worldcover_2021.nuts_2024.epsg4326.level03.fgb -
View the result. Open the Preview, select the Statistics tab in the panel and click a country on the map. Now zoom in and click again — as the zoom increases the Explorer switches to the finer NUTS levels, so the breakdown becomes that of a region rather than a country.
Each new source takes the next level number automatically, so adding them
in this order gives you levels 0, 1, 2 and 3.
Fixing a level
If you add the files out of order, or delete one and re-add it, the levels
can end up wrong. Edit the statistics source and set the level by hand,
or correct the level values in the per-layer {JSON} editor. Levels
should run from 0 upwards with no gaps and no duplicates.