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We need ref length for nice highway shields

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This commit is contained in:
lukasmartinelli 2016-10-28 15:07:15 +02:00
parent dccdbdfbcc
commit c6b783747a
2 changed files with 6 additions and 3 deletions
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2
layers/highway_name/highway_name.yaml
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@ -10,7 +10,7 @@ layer:
datasource: datasource:
geometry_field: geometry geometry_field: geometry
srid: 900913 srid: 900913
query: (SELECT geometry, name, ref, class::text, subclass FROM layer_highway_name(!bbox!, z(!scale_denominator!))) AS t query: (SELECT geometry, name, ref, ref_length, class::text, subclass FROM layer_highway_name(!bbox!, z(!scale_denominator!))) AS t
schema: schema:
- ./merge_highways.sql - ./merge_highways.sql
- ./layer.sql - ./layer.sql

7
layers/highway_name/layer.sql
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@ -1,6 +1,9 @@
CREATE OR REPLACE FUNCTION layer_highway_name(bbox geometry, zoom_level integer) CREATE OR REPLACE FUNCTION layer_highway_name(bbox geometry, zoom_level integer)
RETURNS TABLE(osm_id bigint, geometry geometry, name text, ref text, class highway_class, subclass text) AS $$ RETURNS TABLE(osm_id bigint, geometry geometry, name text, ref text, ref_length int, class highway_class, subclass text) AS $$
SELECT osm_id, geometry, name, ref, to_highway_class(highway) AS class, highway AS subclass FROM ( SELECT osm_id, geometry, name,
NULLIF(ref, ''), NULLIF(LENGTH(ref), 0) AS ref_length,
to_highway_class(highway) AS class, highway AS subclass
FROM (
SELECT * FROM osm_highway_name_linestring_gen3 SELECT * FROM osm_highway_name_linestring_gen3
WHERE zoom_level = 8 WHERE zoom_level = 8
UNION ALL UNION ALL