1614a4656c
Simplify some of the OSM->OMT field value mappings using declarative syntax. This approach is not for all cases, but in many it removes the need of storing the same field in both the .yaml and .sql files. TODO: support more complex AND/OR cases
80 lines
2.4 KiB
YAML
80 lines
2.4 KiB
YAML
layer:
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id: "landcover"
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description: |
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Landcover is used to describe the physical material at the surface of the earth. At lower zoom levels this is
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from Natural Earth data for glaciers and ice shelves and at higher zoom levels the landcover is [implied by OSM tags](http://wiki.openstreetmap.org/wiki/Landcover). The most common use case for this layer
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is to style wood (`class=wood`) and grass (`class=grass`) areas.
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buffer_size: 4
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fields:
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class:
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description: |
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Use the **class** to assign natural colors for **landcover**.
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values:
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farmland:
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subclass: ['farmland', 'farm', 'orchard', 'vineyard', 'plant_nursery']
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ice:
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subclass: ['glacier', 'ice_shelf']
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wood:
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subclass: ['wood', 'forest']
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rock:
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subclass: ['bare_rock', 'scree']
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grass:
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subclass: ['fell', 'grassland', 'heath', 'scrub', 'tundra', 'grass', 'meadow', 'allotments', 'park', 'village_green', 'recreation_ground', 'garden', 'golf_course']
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wetland:
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subclass: ['wetland', 'bog', 'swamp', 'wet_meadow', 'marsh', 'reedbed', 'saltern', 'tidalflat', 'saltmarsh', 'mangrove']
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sand:
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subclass: ['beach', 'sand', 'dune']
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subclass:
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description: |
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Use **subclass** to do more precise styling.
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Original value of either the
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[`natural`](http://wiki.openstreetmap.org/wiki/Key:natural),
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[`landuse`](http://wiki.openstreetmap.org/wiki/Key:landuse),
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[`leisure`](http://wiki.openstreetmap.org/wiki/Key:leisure),
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or [`wetland`](http://wiki.openstreetmap.org/wiki/Key:wetland) tag.
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values:
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- allotments
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- bare_rock
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- beach
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- bog
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- dune
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- scrub
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- farm
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- farmland
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- fell
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- forest
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- garden
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- glacier
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- grass
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- grassland
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- golf_course
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- heath
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- mangrove
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- marsh
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- meadow
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- orchard
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- park
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- plant_nursery
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- recreation_ground
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- reedbed
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- saltern
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- saltmarsh
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- sand
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- scree
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- swamp
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- tidalflat
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- tundra
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- village_green
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- vineyard
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- wet_meadow
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- wetland
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- wood
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datasource:
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geometry_field: geometry
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query: (SELECT geometry, class, subclass FROM layer_landcover(!bbox!, z(!scale_denominator!))) AS t
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schema:
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- ./landcover.sql
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datasources:
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- type: imposm3
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mapping_file: ./mapping.yaml
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