Show more state borders at low zoom levels (#979)

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* Change NE 50m by NE 10m state provinces dataset

* update documentation

Fixes #977 

This PR implements the change discussed at #977 to replace Natural Earth 10m states and provinces by the 50m version, since the 10m only covers state borders for US, Canada, Brazil, and Australia.

A few remarks:

* This change only affects zooms 1 to 4, not making any change in borders based in the `OSM Borders`  source. 
* The `min_zoom<=7` shows the first level regions (level 4 in OSM) as you can check for example for France, Italy, or Spain.
* I don't think it's necessary to simplify the geometries, it would mean adding a new materialized view, or a slower tile generation process.
* This change does not need any change in the styles, even someone could argue it could be interesting to add the country code in this layer as a new field, allowing style editors to filter features by country, but I would prefer to leave that change for another PR.

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This commit is contained in:

Jorge Sanz

2020-09-10 08:41:43 +02:00

committed by GitHub

parent 1356d724d4

commit bd444c0d1a

2 changed files with 7 additions and 5 deletions

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