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Remove unnecessary fields from boundary

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lukasmartinelli
2016-10-28 20:39:38 +02:00
parent 8918e1ff00
commit ff52cfda08
5 changed files with 49 additions and 53 deletions
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13
layers/boundary/boundary.yaml
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@@ -1,17 +1,20 @@
layer:
id: "boundary"
description: |
Contains [administrative boundaries](http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative)
(no maritime boundaries yet).
Until z7 Natural Earth data is used which switches to OSM boundaries after z8.
buffer_size: 4
Contains administrative boundaries as linestrings (no maritime boundaries yet) as linestrings.
Until z7 [Natural Earth data](http://www.naturalearthdata.com/downloads/10m-cultural-vectors/10m-admin-0-countries/)
is used after which OSM boundaries ([`boundary=administrative`](http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative)) are present from z8 to z14.
OSM data contains all [`admin_level`](http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative#admin_level)
but for most styles it makes sense to just style `admin_level=2` and `admin_level=4`.
fields:
admin_level: |
OSM [admin_level](http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dadministrative#admin_level)
indicating the level of importance of this boundary.
At low zoom levels the Natural Earth boundaries are mapped to the equivalent admin levels.
buffer_size: 4
datasource:
query: (SELECT * FROM layer_boundary(!bbox!, z(!scale_denominator!))) AS t
geometry_field: geometry
query: (SELECT geometry, admin_level FROM layer_boundary(!bbox!, z(!scale_denominator!))) AS t
schema:
- ./boundary.sql
datasources: