kopia lustrzana https://github.com/openmaptiles/openmaptiles
Create subclass attribute of railways
rodzic
98aba61b05
commit
137667b235
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@ -6,13 +6,18 @@ $$ LANGUAGE SQL IMMUTABLE STRICT;
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-- etldoc: layer_transportation[shape=record fillcolor=lightpink, style="rounded,filled",
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-- etldoc: label="<sql> layer_transportation |<z4> z4 |<z5> z5 |<z6> z6 |<z7> z7 |<z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14_> z14+" ] ;
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CREATE OR REPLACE FUNCTION layer_transportation(bbox geometry, zoom_level int)
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RETURNS TABLE(osm_id bigint, geometry geometry, class text, ramp int, oneway int, brunnel TEXT, service TEXT) AS $$
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RETURNS TABLE(osm_id bigint, geometry geometry, class text, subclass text,
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ramp int, oneway int, brunnel TEXT, service TEXT) AS $$
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SELECT
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osm_id, geometry,
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CASE
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WHEN highway IS NOT NULL THEN highway_class(highway)
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WHEN railway IS NOT NULL THEN railway_class(railway)
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END AS class,
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CASE
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WHEN railway IS NOT NULL THEN railway
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ELSE NULL
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END AS subclass,
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-- All links are considered as ramps as well
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CASE WHEN highway_is_link(highway) OR highway = 'steps'
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THEN 1 ELSE is_ramp::int END AS ramp,
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@ -30,6 +30,20 @@ layer:
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- raceway
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- rail
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- transit
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subclass:
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description: |
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Distinguish more specific railway classes:
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Subclass is value of the
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[`railway`](http://wiki.openstreetmap.org/wiki/Key:railway) tag.
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values:
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- rail
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- narrow_gauge
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- preserved
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- funicular
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- subway
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- light_rail
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- monorail
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- tram
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brunnel:
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description: |
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Mark whether way is a tunnel or bridge.
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@ -61,7 +75,7 @@ layer:
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datasource:
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geometry_field: geometry
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srid: 900913
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query: (SELECT geometry, class, oneway, ramp, brunnel, service FROM layer_transportation(!bbox!, z(!scale_denominator!))) AS t
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query: (SELECT geometry, class, subclass, oneway, ramp, brunnel, service FROM layer_transportation(!bbox!, z(!scale_denominator!))) AS t
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schema:
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- ./class.sql
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- ./update_transportation_merge.sql
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