24 lines
1.1 KiB
YAML
24 lines
1.1 KiB
YAML
layer:
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id: "waterway"
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description: |
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Rivers based of OpenStreetMap [waterways](http://wiki.openstreetmap.org/wiki/Waterways) for *z8* to *z14*
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and Natural Earth rivers and lake centerlines from *z3* to *z7*.
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Too short linestrings are filtered out for some zoom levels. Waterways do no not have a `subclass`.
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buffer_size: 4
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fields:
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class: |
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The original value of the [`waterway`](http://wiki.openstreetmap.org/wiki/Key:waterway) tag.
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Can be one of [`stream`](http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dstream),
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[`river`](http://wiki.openstreetmap.org/wiki/Tag:waterway%3Driver),
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[`canal`](http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dcanal),
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[`drain`](http://wiki.openstreetmap.org/wiki/Tag:waterway%3Ddrain),
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[`ditch`](http://wiki.openstreetmap.org/wiki/Tag:waterway%3Dditch)`.
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datasource:
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geometry_field: geometry
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query: (SELECT geometry, class FROM layer_waterway(!bbox!, z(!scale_denominator!))) AS t
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schema:
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- ./waterway.sql
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datasources:
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- type: imposm3
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mapping_file: ./mapping.yaml
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