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Move highway and railway into transportation

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This commit is contained in:
Lukas Martinelli 2016-11-26 20:19:43 +00:00
parent c769577c56
commit 35b6951c81
23 changed files with 216 additions and 303 deletions
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12
Makefile
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@ -1,7 +1,7 @@
all: build/openmaptiles.tm2source/data.yml build/mapping.yaml build/tileset.sql
.PHONY: docs
docs: layers/railway/README.md layers/boundary/README.md layers/water/README.md layers/building/README.md layers/highway/README.md layers/highway_name/README.md layers/poi/README.md layers/place/README.md layers/waterway/README.md layers/water_name/README.md layers/landcover/README.md layers/landuse/README.md layers/housenumber/README.md
docs: layers/railway/README.md layers/boundary/README.md layers/water/README.md layers/building/README.md layers/transportation/README.md layers/transportation_name/README.md layers/poi/README.md layers/place/README.md layers/waterway/README.md layers/water_name/README.md layers/landcover/README.md layers/landuse/README.md layers/housenumber/README.md
build/openmaptiles.tm2source/data.yml:
mkdir -p build/openmaptiles.tm2source && generate-tm2source openmaptiles.yaml --host="postgres" --port=5432 --database="openmaptiles" --user="openmaptiles" --password="openmaptiles" > build/openmaptiles.tm2source/data.yml
@ -15,11 +15,11 @@ build/tileset.sql:
layers/poi/README.md:
generate-doc layers/poi/poi.yaml --diagram layers/poi/mapping > layers/poi/README.md
layers/highway/README.md:
generate-doc layers/highway/highway.yaml --diagram layers/highway/mapping > layers/highway/README.md
layers/transportation/README.md:
generate-doc layers/transportation/transportation.yaml --diagram layers/transportation/mapping > layers/transportation/README.md
layers/highway_name/README.md:
generate-doc layers/highway_name/highway_name.yaml > layers/highway_name/README.md
layers/transportation_name/README.md:
generate-doc layers/transportation_name/transportation_name.yaml > layers/transportation_name/README.md
layers/railway/README.md:
generate-doc layers/railway/railway.yaml --diagram layers/railway/mapping > layers/railway/README.md
@ -52,4 +52,4 @@ layers/housenumber/README.md:
generate-doc layers/housenumber/housenumber.yaml > layers/housenumber/README.md
clean:
rm -f build/openmaptiles.tm2source/data.yml && rm -f build/mapping.yaml && rm -f build/tileset.sql && rm -f layers/**/README.md&& rm -f layers/**/*.png
rm -f build/openmaptiles.tm2source/data.yml && rm -f build/mapping.yaml && rm -f build/tileset.sql

50
layers/highway_name/layer.sql
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@ -1,50 +0,0 @@
-- etldoc: layer_highway_name[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="layer_highway_name | <z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14_> z14_" ] ;
CREATE OR REPLACE FUNCTION layer_highway_name(bbox geometry, zoom_level integer)
RETURNS TABLE(osm_id bigint, geometry geometry, name text, ref text, ref_length int, class highway_class, subclass text) AS $$
SELECT osm_id, geometry, name,
NULLIF(ref, ''), NULLIF(LENGTH(ref), 0) AS ref_length,
to_highway_class(highway) AS class, highway AS subclass
FROM (
-- etldoc: osm_highway_name_linestring_gen3 -> layer_highway_name:z8
SELECT * FROM osm_highway_name_linestring_gen3
WHERE zoom_level = 8
UNION ALL
-- etldoc: osm_highway_name_linestring_gen2 -> layer_highway_name:z9
SELECT * FROM osm_highway_name_linestring_gen2
WHERE zoom_level = 9
UNION ALL
-- etldoc: osm_highway_name_linestring_gen1 -> layer_highway_name:z10
-- etldoc: osm_highway_name_linestring_gen1 -> layer_highway_name:z11
SELECT * FROM osm_highway_name_linestring_gen1
WHERE zoom_level BETWEEN 10 AND 11
UNION ALL
-- etldoc: osm_highway_name_linestring -> layer_highway_name:z12
SELECT * FROM osm_highway_name_linestring
WHERE zoom_level = 12
AND LineLabel(zoom_level, COALESCE(NULLIF(name, ''), ref), geometry)
AND to_highway_class(highway) < 'minor_road'::highway_class
AND NOT highway_is_link(highway)
UNION ALL
-- etldoc: osm_highway_name_linestring -> layer_highway_name:z13
SELECT * FROM osm_highway_name_linestring
WHERE zoom_level = 13
AND LineLabel(zoom_level, COALESCE(NULLIF(name, ''), ref), geometry)
AND to_highway_class(highway) < 'path'::highway_class
UNION ALL
-- etldoc: osm_highway_name_linestring -> layer_highway_name:z14_
SELECT * FROM osm_highway_name_linestring
WHERE zoom_level >= 14
) AS zoom_levels
WHERE geometry && bbox
ORDER BY z_order ASC;
$$ LANGUAGE SQL IMMUTABLE;

57
layers/highway_name/merge_highways.sql
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@ -1,57 +0,0 @@
-- Instead of using relations to find out the road names we
-- stitch together the touching ways with the same name
-- to allow for nice label rendering
-- Because this works well for roads that do not have relations as well
-- etldoc: osm_highway_linestring -> osm_highway_name_linestring
CREATE TABLE IF NOT EXISTS osm_highway_name_linestring AS (
SELECT
(ST_Dump(geometry)).geom AS geometry,
-- NOTE: The osm_id is no longer the original one which can make it difficult
-- to lookup road names by OSM ID
member_osm_ids[0] AS osm_id,
member_osm_ids,
name,
ref,
highway,
z_order
FROM (
SELECT
ST_LineMerge(ST_Union(geometry)) AS geometry,
name,
ref,
highway,
min(z_order) AS z_order,
array_agg(DISTINCT osm_id) AS member_osm_ids
FROM osm_highway_linestring
-- We only care about roads for labelling
WHERE name <> '' OR ref <> ''
GROUP BY name, highway, ref
) AS highway_union
);
CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_geometry_idx ON osm_highway_name_linestring USING gist(geometry);
-- etldoc: osm_highway_name_linestring -> osm_highway_name_linestring_gen1
CREATE TABLE IF NOT EXISTS osm_highway_name_linestring_gen1 AS (
SELECT ST_Simplify(geometry, 50) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_highway_name_linestring
WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 8000
);
CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_gen1_geometry_idx ON osm_highway_name_linestring_gen1 USING gist(geometry);
-- etldoc: osm_highway_name_linestring_gen1 -> osm_highway_name_linestring_gen2
CREATE TABLE IF NOT EXISTS osm_highway_name_linestring_gen2 AS (
SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_highway_name_linestring_gen1
WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 14000
);
CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_gen2_geometry_idx ON osm_highway_name_linestring_gen2 USING gist(geometry);
-- etldoc: osm_highway_name_linestring_gen2 -> osm_highway_name_linestring_gen3
CREATE TABLE IF NOT EXISTS osm_highway_name_linestring_gen3 AS (
SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_highway_name_linestring_gen2
WHERE highway = 'motorway' AND ST_Length(geometry) > 20000
);
CREATE INDEX IF NOT EXISTS osm_highway_name_linestring_gen3_geometry_idx ON osm_highway_name_linestring_gen3 USING gist(geometry);

19
layers/railway/README.md
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@ -1,19 +0,0 @@
# railway
The `railway` layer contains linestrings marking tracks from [OSM Railways](http://wiki.openstreetmap.org/wiki/Railways).
It contains tracks for [passenger and freight trains]() and smaller tracks for [Trams](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dtram) or [similar](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dlight_rail) vehicles. But also tracks for [subways](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dsubway), [narrow-gauge trains](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dnarrow_gauge) or [historic trains](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dpreserved).
Non mainline tracks (marked with class `minor_rail`) used for [storage of trains](http://wiki.openstreetmap.org/wiki/Tag:service%3Dyard) and [maintenance](http://wiki.openstreetmap.org/wiki/Tag:service%3Dsiding) are contained in the highest zoom levels and should be styled more subtle than the mainline tracks with class `rail`.
## Fields
- **class**: Divides the track into mainline tracks (class `rail`) and less important tracks
used for maintenance (class `minor_rail`).
- **subclass**: Original value of the [`railway`](http://wiki.openstreetmap.org/wiki/Key:railway) can be one of
`rail`, `light_rail`, `subway`, `narrow_gauge`, `preserved`, `tram`.
- **properties**: Additional properties describing the nature of tracks. Can be either `bridge` or `tunnel`.
## Mapping
![](mapping.png)

14
layers/railway/mapping
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@ -1,14 +0,0 @@
digraph "Imposm Mapping" {
graph [rankdir=LR ranksep=3]
subgraph railway_linestring {
node [fixed_size=shape "width:"=20]
railway_linestring [shape=box]
key_railway [label=railway shape=box]
key_railway -> railway_linestring [label="rail
light_rail
subway
narrow_gauge
preserved
tram"]
}
}

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layers/railway/mapping.png
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34
layers/railway/mapping.yaml
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@ -1,34 +0,0 @@
tables:
# etldoc: imposm3 -> osm_railway_linestring
railway_linestring:
type: linestring
fields:
- name: osm_id
type: id
- name: geometry
type: geometry
- key: railway
name: railway
type: string
- name: z_order
type: wayzorder
- key: tunnel
name: is_tunnel
type: bool
- key: bridge
name: is_bridge
type: bool
- key: service
name: service
type: string
- key: usage
name: usage
type: string
mapping:
railway:
- rail
- light_rail
- subway
- narrow_gauge
- preserved
- tram

35
layers/railway/railway.sql
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@ -1,35 +0,0 @@
CREATE OR REPLACE FUNCTION railway_class(railway text, service text) RETURNS TEXT AS $$
SELECT CASE
WHEN railway='rail' AND service='' THEN 'rail'
ELSE 'minor_rail'
END;
$$ LANGUAGE SQL IMMUTABLE;
CREATE OR REPLACE FUNCTION railway_brunnel(is_bridge boolean, is_tunnel boolean) RETURNS TEXT AS $$
SELECT CASE
WHEN is_bridge THEN 'bridge'
WHEN is_tunnel THEN 'tunnel'
ELSE NULL
END;
$$ LANGUAGE SQL IMMUTABLE;
-- etldoc: layer_railway[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="layer_railway | <z13> z13 | <z14_> z14_" ] ;
CREATE OR REPLACE FUNCTION layer_railway(bbox geometry, zoom_level int)
RETURNS TABLE(osm_id bigint, geometry geometry, class text, subclass text, properties railway_properties) AS $$
SELECT osm_id, geometry,
railway_class(railway, service) AS class,
railway AS subclass,
to_railway_properties(is_bridge, is_tunnel) AS properties
FROM (
-- etldoc: osm_railway_linestring -> layer_railway :z13
SELECT * FROM osm_railway_linestring
WHERE zoom_level = 13 AND railway = 'rail' AND service=''
UNION ALL
-- etldoc: osm_railway_linestring -> layer_railway :z14_
SELECT * FROM osm_railway_linestring WHERE zoom_level >= 14
) AS zoom_levels
WHERE geometry && bbox
ORDER BY z_order ASC;
$$ LANGUAGE SQL IMMUTABLE;

25
layers/railway/railway.yaml
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@ -1,25 +0,0 @@
layer:
id: "railway"
description: |
The `railway` layer contains linestrings marking tracks from [OSM Railways](http://wiki.openstreetmap.org/wiki/Railways).
It contains tracks for [passenger and freight trains]() and smaller tracks for [Trams](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dtram) or [similar](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dlight_rail) vehicles. But also tracks for [subways](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dsubway), [narrow-gauge trains](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dnarrow_gauge) or [historic trains](http://wiki.openstreetmap.org/wiki/Tag:railway%3Dpreserved).
Non mainline tracks (marked with class `minor_rail`) used for [storage of trains](http://wiki.openstreetmap.org/wiki/Tag:service%3Dyard) and [maintenance](http://wiki.openstreetmap.org/wiki/Tag:service%3Dsiding) are contained in the highest zoom levels and should be styled more subtle than the mainline tracks with class `rail`.
fields:
class: |
Divides the track into mainline tracks (class `rail`) and less important tracks
used for maintenance (class `minor_rail`).
subclass: |
Original value of the [`railway`](http://wiki.openstreetmap.org/wiki/Key:railway) can be one of
`rail`, `light_rail`, `subway`, `narrow_gauge`, `preserved`, `tram`.
properties: |
Additional properties describing the nature of tracks. Can be either `bridge` or `tunnel`.
buffer_size: 4
datasource:
geometry_field: geometry
query: (SELECT geometry, class, subclass, properties::text FROM layer_railway(!bbox!, z(!scale_denominator!))) AS t
schema:
- ./types.sql
- ./railway.sql
datasources:
- type: imposm3
mapping_file: ./mapping.yaml

15
layers/railway/types.sql
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@ -1,15 +0,0 @@
DO $$
BEGIN
IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'railway_properties') THEN
CREATE TYPE railway_properties AS ENUM ('bridge', 'tunnel');
END IF;
END
$$;
CREATE OR REPLACE FUNCTION to_railway_properties(is_bridge boolean, is_tunnel boolean) RETURNS railway_properties AS $$
SELECT CASE
WHEN is_bridge THEN 'bridge'::railway_properties
WHEN is_tunnel THEN 'tunnel'::railway_properties
ELSE NULL
END;
$$ LANGUAGE SQL IMMUTABLE;

0
layers/highway/README.md → layers/transportation/README.md
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44
layers/highway/highway.sql → layers/transportation/highway.sql
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@ -1,13 +1,11 @@
CREATE OR REPLACE FUNCTION highway_is_link(highway TEXT) RETURNS BOOLEAN AS $$
SELECT highway LIKE '%_link';
$$ LANGUAGE SQL IMMUTABLE STRICT;
-- etldoc: layer_highway[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="<sql> layer_highway |<z4z7> z4-z7 |<z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14_> z14_" ] ;
CREATE OR REPLACE FUNCTION layer_highway(bbox geometry, zoom_level int)
-- etldoc: layer_transportation[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="<sql> layer_transportation |<z4z7> z4-z7 |<z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14_> z14_" ] ;
CREATE OR REPLACE FUNCTION layer_transportation(bbox geometry, zoom_level int)
RETURNS TABLE(osm_id bigint, geometry geometry, class highway_class, subclass text, properties highway_properties) AS $$
SELECT
osm_id, geometry,
@ -15,7 +13,7 @@ RETURNS TABLE(osm_id bigint, geometry geometry, class highway_class, subclass te
to_highway_properties(is_bridge, is_tunnel, is_ford, is_ramp, is_oneway) AS properties
FROM (
-- etldoc: ne_10m_global_roads -> layer_highway:z4z7
-- etldoc: ne_10m_global_roads -> layer_transportation:z4z7
SELECT
NULL::bigint AS osm_id, geometry, highway,
FALSE AS is_bridge, FALSE AS is_tunnel, FALSE AS is_ford, FALSE AS is_ramp, FALSE AS is_oneway,
@ -24,59 +22,59 @@ RETURNS TABLE(osm_id bigint, geometry geometry, class highway_class, subclass te
WHERE zoom_level BETWEEN 4 AND 7 AND scalerank <= 1 + zoom_level
UNION ALL
-- etldoc: osm_highway_linestring_gen4 -> layer_highway:z8
-- etldoc: osm_transportation_linestring_gen4 -> layer_transportation:z8
SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
FROM osm_highway_linestring_gen4
FROM osm_transportation_linestring_gen4
WHERE zoom_level = 8
UNION ALL
-- etldoc: osm_highway_linestring_gen3 -> layer_highway:z9
-- etldoc: osm_transportation_linestring_gen3 -> layer_transportation:z9
SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
FROM osm_highway_linestring_gen3
FROM osm_transportation_linestring_gen3
WHERE zoom_level = 9
UNION ALL
-- etldoc: osm_highway_linestring_gen2 -> layer_highway:z10
-- etldoc: osm_transportation_linestring_gen2 -> layer_transportation:z10
SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
FROM osm_highway_linestring_gen2
FROM osm_transportation_linestring_gen2
WHERE zoom_level = 10
UNION ALL
-- etldoc: osm_highway_linestring_gen1 -> layer_highway:z11
-- etldoc: osm_transportation_linestring_gen1 -> layer_transportation:z11
SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
FROM osm_highway_linestring_gen1
FROM osm_transportation_linestring_gen1
WHERE zoom_level = 11
UNION ALL
-- etldoc: osm_highway_linestring -> layer_highway:z12
-- etldoc: osm_transportation_linestring -> layer_transportation:z12
SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
FROM osm_highway_linestring
FROM osm_transportation_linestring
WHERE zoom_level = 12
AND (to_highway_class(highway) < 'minor_road'::highway_class OR highway IN ('unclassified', 'residential'))
AND NOT highway_is_link(highway)
AND NOT is_area
UNION ALL
-- etldoc: osm_highway_linestring -> layer_highway:z13
-- etldoc: osm_transportation_linestring -> layer_transportation:z13
SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
FROM osm_highway_linestring
FROM osm_transportation_linestring
WHERE zoom_level = 13
AND to_highway_class(highway) < 'path'::highway_class
AND NOT is_area
UNION ALL
-- etldoc: osm_highway_linestring -> layer_highway:z14_
-- etldoc: osm_transportation_linestring -> layer_transportation:z14_
SELECT osm_id, geometry, highway, is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, z_order
FROM osm_highway_linestring
FROM osm_transportation_linestring
WHERE zoom_level >= 14 AND NOT is_area
UNION ALL
-- NOTE: We limit the selection of polys because we need to be careful to net get false positives here because
-- it is possible that closed linestrings appear both as highway linestrings and as polygon
-- etldoc: osm_highway_polygon -> layer_highway:z13
-- etldoc: osm_highway_polygon -> layer_highway:z14_
-- etldoc: osm_transportation__polygon -> layer_transportation:z13
-- etldoc: osm_transportation__polygon -> layer_transportation:z14_
SELECT osm_id, geometry, highway, FALSE AS is_bridge, FALSE AS is_tunnel, FALSE AS is_ford, FALSE AS is_ramp, FALSE AS is_oneway, z_order
FROM osm_highway_polygon
FROM osm_transportation_polygon
-- We do not want underground pedestrian areas for now
WHERE zoom_level >= 13 AND is_area AND COALESCE(layer, 0) >= 0
) AS zoom_levels

39
layers/transportation/mapping Normal file
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@ -0,0 +1,39 @@
digraph "Imposm Mapping" {
graph [rankdir=LR ranksep=3]
subgraph highway_polygon {
node [fixed_size=shape "width:"=20]
highway_polygon [shape=box]
key_highway [label=highway shape=box]
key_highway -> highway_polygon [label=pedestrian]
}
subgraph highway_linestring {
node [fixed_size=shape "width:"=20]
highway_linestring [shape=box]
key_highway [label=highway shape=box]
key_highway -> highway_linestring [label="motorway
motorway_link
trunk
trunk_link
primary
primary_link
secondary
secondary_link
tertiary
tertiary_link
unclassified
residential
road
living_street
raceway
construction
track
service
path
cycleway
bridleway
footway
corridor
crossing
pedestrian"]
}
}

0
layers/highway/mapping.png → layers/transportation/mapping.png
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51
layers/highway/mapping.yaml → layers/transportation/mapping.yaml
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@ -1,33 +1,33 @@
generalized_tables:
# etldoc: imposm3 -> osm_highway_linestring_gen4
highway_linestring_gen4:
source: highway_linestring_gen3
# etldoc: imposm3 -> osm_transportation_linestring_gen4
transportation_linestring_gen4:
source: transportation_linestring_gen3
sql_filter: highway IN ('motorway','trunk') AND NOT is_area
tolerance: 200.0
# etldoc: imposm3 -> osm_highway_linestring_gen3
highway_linestring_gen3:
source: highway_linestring_gen2
# etldoc: imposm3 -> osm_transportation_linestring_gen3
transportation_linestring_gen3:
source: transportation_linestring_gen2
sql_filter: highway IN ('motorway','trunk', 'primary') AND NOT is_area
tolerance: 120.0
# etldoc: imposm3 -> osm_highway_linestring_gen2
highway_linestring_gen2:
source: highway_linestring_gen1
# etldoc: imposm3 -> osm_transportation_linestring_gen2
transportation_linestring_gen2:
source: transportation_linestring_gen1
sql_filter: highway IN ('motorway','trunk', 'primary', 'secondary') AND NOT is_area
tolerance: 50.0
# etldoc: imposm3 -> osm_highway_linestring_gen1
highway_linestring_gen1:
source: highway_linestring
# etldoc: imposm3 -> osm_transportation_linestring_gen1
transportation_linestring_gen1:
source: transportation_linestring
sql_filter: highway IN ('motorway','trunk', 'primary', 'secondary', 'tertiary') AND NOT is_area
tolerance: 20.0
tables:
# etldoc: imposm3 -> osm_highway_linestring
highway_linestring:
# etldoc: imposm3 -> osm_transportation_linestring
transportation_linestring:
type: linestring
fields:
- name: osm_id
@ -37,6 +37,9 @@ tables:
- name: highway
key: highway
type: string
- key: railway
name: railway
type: string
- key: ref
name: ref
type: string
@ -63,12 +66,21 @@ tables:
- key: name
name: name
type: string
- key: short_name
name: short_name
type: string
- name: name_en
key: name:en
type: string
- name: is_area
key: area
type: bool
- key: service
name: service
type: string
- key: usage
name: usage
type: string
mapping:
highway:
- motorway
@ -96,9 +108,16 @@ tables:
- corridor
- crossing
- pedestrian
railway:
- rail
- light_rail
- subway
- narrow_gauge
- preserved
- tram
# etldoc: imposm3 -> osm_highway_polygon
highway_polygon:
# etldoc: imposm3 -> osm_transportation_polygon
transportation_polygon:
type: polygon
fields:
- name: osm_id

0
layers/highway/ne_global_roads.sql → layers/transportation/ne_global_roads.sql
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4
layers/highway/highway.yaml → layers/transportation/transportation.yaml
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@ -1,5 +1,5 @@
layer:
id: "highway"
id: "transportation"
description: |
Roads or [`highway`](http://wiki.openstreetmap.org/wiki/Key:highway) in OpenStreetMap lingo.
This layer is directly derived from the OSM road hierarchy which is why it is called `highway`. Only
@ -29,7 +29,7 @@ layer:
datasource:
geometry_field: geometry
srid: 900913
query: (SELECT geometry, class::text, subclass, properties::text FROM layer_highway(!bbox!, z(!scale_denominator!))) AS t
query: (SELECT geometry, class::text, subclass, properties::text FROM layer_transportation(!bbox!, z(!scale_denominator!))) AS t
schema:
- ./types.sql
- ./ne_global_roads.sql

0
layers/highway/types.sql → layers/transportation/types.sql
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0
layers/highway_name/README.md → layers/transportation_name/README.md
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50
layers/transportation_name/layer.sql Normal file
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@ -0,0 +1,50 @@
-- etldoc: layer_transportation_name[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="layer_transportation_name | <z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14_> z14_" ] ;
CREATE OR REPLACE FUNCTION layer_transportation_name(bbox geometry, zoom_level integer)
RETURNS TABLE(osm_id bigint, geometry geometry, name text, ref text, ref_length int, class highway_class, subclass text) AS $$
SELECT osm_id, geometry, name,
NULLIF(ref, ''), NULLIF(LENGTH(ref), 0) AS ref_length,
to_highway_class(highway) AS class, highway AS subclass
FROM (
-- etldoc: osm_transportation_name_linestring_gen3 -> layer_transportation_name:z8
SELECT * FROM osm_transportation_name_linestring_gen3
WHERE zoom_level = 8
UNION ALL
-- etldoc: osm_transportation_name_linestring_gen2 -> layer_transportation_name:z9
SELECT * FROM osm_transportation_name_linestring_gen2
WHERE zoom_level = 9
UNION ALL
-- etldoc: osm_transportation_name_linestring_gen1 -> layer_transportation_name:z10
-- etldoc: osm_transportation_name_linestring_gen1 -> layer_transportation_name:z11
SELECT * FROM osm_transportation_name_linestring_gen1
WHERE zoom_level BETWEEN 10 AND 11
UNION ALL
-- etldoc: osm_transportation_name_linestring -> layer_transportation_name:z12
SELECT * FROM osm_transportation_name_linestring
WHERE zoom_level = 12
AND LineLabel(zoom_level, COALESCE(NULLIF(name, ''), ref), geometry)
AND to_highway_class(highway) < 'minor_road'::highway_class
AND NOT highway_is_link(highway)
UNION ALL
-- etldoc: osm_transportation_name_linestring -> layer_transportation_name:z13
SELECT * FROM osm_transportation_name_linestring
WHERE zoom_level = 13
AND LineLabel(zoom_level, COALESCE(NULLIF(name, ''), ref), geometry)
AND to_highway_class(highway) < 'path'::highway_class
UNION ALL
-- etldoc: osm_transportation_name_linestring -> layer_transportation_name:z14_
SELECT * FROM osm_transportation_name_linestring
WHERE zoom_level >= 14
) AS zoom_levels
WHERE geometry && bbox
ORDER BY z_order ASC;
$$ LANGUAGE SQL IMMUTABLE;

57
layers/transportation_name/merge_highways.sql Normal file
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@ -0,0 +1,57 @@
-- Instead of using relations to find out the road names we
-- stitch together the touching ways with the same name
-- to allow for nice label rendering
-- Because this works well for roads that do not have relations as well
-- etldoc: osm_transportation_linestring -> osm_transportation_name_linestring
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring AS (
SELECT
(ST_Dump(geometry)).geom AS geometry,
-- NOTE: The osm_id is no longer the original one which can make it difficult
-- to lookup road names by OSM ID
member_osm_ids[0] AS osm_id,
member_osm_ids,
name,
ref,
highway,
z_order
FROM (
SELECT
ST_LineMerge(ST_Union(geometry)) AS geometry,
name,
ref,
highway,
min(z_order) AS z_order,
array_agg(DISTINCT osm_id) AS member_osm_ids
FROM osm_transportation_linestring
-- We only care about highways (not railways) for labeling
WHERE (name <> '' OR ref <> '') AND NULLIF(highway, '') IS NOT NULL
GROUP BY name, highway, ref
) AS highway_union
);
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_geometry_idx ON osm_transportation_name_linestring USING gist(geometry);
-- etldoc: osm_transportation_name_linestring -> osm_transportation_name_linestring_gen1
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen1 AS (
SELECT ST_Simplify(geometry, 50) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_transportation_name_linestring
WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 8000
);
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_gen1_geometry_idx ON osm_transportation_name_linestring_gen1 USING gist(geometry);
-- etldoc: osm_transportation_name_linestring_gen1 -> osm_transportation_name_linestring_gen2
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen2 AS (
SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_transportation_name_linestring_gen1
WHERE highway IN ('motorway','trunk') AND ST_Length(geometry) > 14000
);
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_gen2_geometry_idx ON osm_transportation_name_linestring_gen2 USING gist(geometry);
-- etldoc: osm_transportation_name_linestring_gen2 -> osm_transportation_name_linestring_gen3
CREATE TABLE IF NOT EXISTS osm_transportation_name_linestring_gen3 AS (
SELECT ST_Simplify(geometry, 120) AS geometry, osm_id, member_osm_ids, name, ref, highway, z_order
FROM osm_transportation_name_linestring_gen2
WHERE highway = 'motorway' AND ST_Length(geometry) > 20000
);
CREATE INDEX IF NOT EXISTS osm_transportation_name_linestring_gen3_geometry_idx ON osm_transportation_name_linestring_gen3 USING gist(geometry);

6
layers/highway_name/highway_name.yaml → layers/transportation_name/transportation_name.yaml
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@ -1,5 +1,5 @@
layer:
id: "highway_name"
id: "transportation_name"
description: |
This is the layer for labelling the highways. Only highways that are named `name=*` and are long enough
to place text upon appear. The OSM roads are stitched together if they contain the same name
@ -20,10 +20,10 @@ layer:
datasource:
geometry_field: geometry
srid: 900913
query: (SELECT geometry, name, ref, ref_length, 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_transportation_name(!bbox!, z(!scale_denominator!))) AS t
schema:
- ./merge_highways.sql
- ./layer.sql
datasources:
- type: imposm3
mapping_file: ../highway/mapping.yaml
mapping_file: ../transportation/mapping.yaml

5
openmaptiles.yaml
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@ -1,13 +1,12 @@
tileset:
layers:
- layers/boundary/boundary.yaml
- layers/highway/highway.yaml
- layers/highway_name/highway_name.yaml
- layers/transportation/transportation.yaml
- layers/transportation_name/transportation_name.yaml
- layers/building/building.yaml
- layers/housenumber/housenumber.yaml
- layers/place/place.yaml
- layers/poi/poi.yaml
- layers/railway/railway.yaml
- layers/water_name/water_name.yaml
- layers/water/water.yaml
- layers/waterway/waterway.yaml