Merge pull request #570 from Phyks/surface

Add surface field for highways

layers/transportation/class.sql

@@ -42,3 +42,13 @@ CREATE OR REPLACE FUNCTION service_value(service TEXT) RETURNS TEXT AS $$
         ELSE NULL
     END;
 $$ LANGUAGE SQL IMMUTABLE STRICT;
+
+-- Limit surface to only the most important values to ensure
+-- we always know the values of surface
+CREATE OR REPLACE FUNCTION surface_value(surface TEXT) RETURNS TEXT AS $$
+    SELECT CASE
+        WHEN surface IN ('paved', 'asphalt', 'cobblestone', 'concrete', 'concrete:lanes', 'concrete:plates', 'metal', 'paving_stones', 'sett', 'unhewn_cobblestone', 'wood') THEN 'paved'
+        WHEN surface IN ('unpaved', 'compacted', 'dirt', 'earth', 'fine_gravel', 'grass', 'grass_paver', 'gravel', 'gravel_turf', 'ground', 'ice', 'mud', 'pebblestone', 'salt', 'sand', 'snow', 'woodchips') THEN 'unpaved'
+        ELSE NULL
+    END;
+$$ LANGUAGE SQL IMMUTABLE STRICT;

layers/transportation/layer.sql

@@ -8,7 +8,7 @@ $$ LANGUAGE SQL IMMUTABLE STRICT;
 CREATE OR REPLACE FUNCTION layer_transportation(bbox geometry, zoom_level int)
 RETURNS TABLE(osm_id bigint, geometry geometry, class text, subclass text,
 ramp int, oneway int, brunnel TEXT, service TEXT, layer INT, level INT,
-indoor INT) AS $$
+indoor INT, surface TEXT) AS $$
     SELECT
         osm_id, geometry,
         CASE
@@ -33,7 +33,8 @@ indoor INT) AS $$
         NULLIF(service, '') AS service,
         NULLIF(layer, 0) AS layer,
         "level",
-        CASE WHEN indoor=TRUE THEN 1 ELSE NULL END as indoor
+        CASE WHEN indoor=TRUE THEN 1 ELSE NULL END as indoor,
+        NULLIF(surface, '') AS surface
     FROM (
         -- etldoc: osm_transportation_merge_linestring_gen7 -> layer_transportation:z4
         SELECT
@@ -44,6 +45,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             NULL::int AS layer, NULL::int AS level, NULL::boolean AS indoor,
+	    NULL AS surface,
             z_order
         FROM osm_transportation_merge_linestring_gen7
         WHERE zoom_level = 4
@@ -58,7 +60,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             NULL::int AS layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_transportation_merge_linestring_gen6
         WHERE zoom_level = 5
         UNION ALL
@@ -72,7 +74,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             NULL::int AS layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_transportation_merge_linestring_gen5
         WHERE zoom_level = 6
         UNION ALL
@@ -86,7 +88,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             NULL::int AS layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_transportation_merge_linestring_gen4
         WHERE zoom_level = 7
         UNION ALL
@@ -100,7 +102,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             NULL::int AS layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_transportation_merge_linestring_gen3
         WHERE zoom_level = 8
         UNION ALL
@@ -115,7 +117,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_highway_linestring_gen2
         WHERE zoom_level BETWEEN 9 AND 10
           AND st_length(geometry)>zres(11)
@@ -130,7 +132,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_highway_linestring_gen1
         WHERE zoom_level = 11
           AND st_length(geometry)>zres(12)
@@ -151,6 +153,7 @@ indoor INT) AS $$
             CASE WHEN highway IN ('footway', 'steps') THEN indoor
                 ELSE NULL::boolean
             END AS indoor,
+            surface_value(surface) AS "surface",
             z_order
         FROM osm_highway_linestring
         WHERE NOT is_area AND (
@@ -182,7 +185,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             NULL::int AS layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+	    NULL as surface, z_order
         FROM osm_railway_linestring_gen5
         WHERE zoom_level = 8
             AND railway='rail' AND service = '' and usage='main'
@@ -197,7 +200,7 @@ indoor INT) AS $$
             NULL::boolean AS is_ford,
             NULL::boolean AS is_ramp, NULL::int AS is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+	    NULL AS surface, z_order
         FROM osm_railway_linestring_gen4
         WHERE zoom_level = 9
             AND railway='rail' AND service = '' and usage='main'
@@ -210,7 +213,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_railway_linestring_gen3
         WHERE zoom_level = 10
             AND railway IN ('rail', 'narrow_gauge') AND service = ''
@@ -223,7 +226,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL as surface, z_order
         FROM osm_railway_linestring_gen2
         WHERE zoom_level = 11
             AND railway IN ('rail', 'narrow_gauge', 'light_rail') AND service = ''
@@ -236,7 +239,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL as surface, z_order
         FROM osm_railway_linestring_gen1
         WHERE zoom_level = 12
             AND railway IN ('rail', 'narrow_gauge', 'light_rail') AND service = ''
@@ -250,7 +253,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL as surface, z_order
         FROM osm_railway_linestring
         WHERE zoom_level = 13
                 AND railway IN ('rail', 'narrow_gauge', 'light_rail') AND service = ''
@@ -264,7 +267,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_aerialway_linestring_gen1
         WHERE zoom_level = 12
         UNION ALL
@@ -277,7 +280,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_aerialway_linestring
         WHERE zoom_level >= 13
         UNION ALL
@@ -289,7 +292,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_shipway_linestring_gen2
         WHERE zoom_level = 11
         UNION ALL
@@ -301,7 +304,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_shipway_linestring_gen1
         WHERE zoom_level = 12
         UNION ALL
@@ -314,7 +317,7 @@ indoor INT) AS $$
             NULL AS public_transport, service_value(service) AS service,
             is_bridge, is_tunnel, is_ford, is_ramp, is_oneway, NULL as man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_shipway_linestring
         WHERE zoom_level >= 13
         UNION ALL
@@ -334,7 +337,7 @@ indoor INT) AS $$
             END AS is_bridge, FALSE AS is_tunnel, FALSE AS is_ford,
             FALSE AS is_ramp, FALSE::int AS is_oneway, man_made,
             layer, NULL::int AS level, NULL::boolean AS indoor,
-            z_order
+            NULL AS surface, z_order
         FROM osm_highway_polygon
         -- We do not want underground pedestrian areas for now
         WHERE zoom_level >= 13

layers/transportation/mapping.yaml

@@ -133,6 +133,10 @@ man_made_field: &man_made
 z_order_field: &z_order
   name: z_order
   type: wayzorder
+surface_field: &surface
+  key: surface
+  name: surface
+  type: string
 
 tables:
 # etldoc: imposm3 -> osm_highway_linestring
@@ -168,6 +172,7 @@ tables:
     - *usage
     - *public_transport
     - *man_made
+    - *surface
     mapping:
       highway:
       - motorway

layers/transportation/transportation.yaml

@@ -105,10 +105,16 @@ layer:
           value of [`indoor`](http://wiki.openstreetmap.org/wiki/Key:indoor) tag.
       values:
       - 1
+    surface:
+      description: |
+          Values of [`surface`](https://wiki.openstreetmap.org/wiki/Key:surface) tag devided into 2 groups `paved` (paved, asphalt, cobblestone, concrete, concrete:lanes, concrete:plates, metal, paving_stones, sett, unhewn_cobblestone, wood) and `unpaved` (unpaved, compacted, dirt, earth, fine_gravel, grass, grass_paver, gravel, gravel_turf, ground, ice, mud, pebblestone, salt, sand, snow, woodchips).
+      values:
+      - paved
+      - unpaved
   datasource:
     geometry_field: geometry
     srid: 900913
-    query: (SELECT geometry, class, subclass, oneway, ramp, brunnel, service, layer, level, indoor FROM layer_transportation(!bbox!, z(!scale_denominator!))) AS t
+    query: (SELECT geometry, class, subclass, oneway, ramp, brunnel, service, layer, level, indoor, surface FROM layer_transportation(!bbox!, z(!scale_denominator!))) AS t
 schema:
   - ./class.sql
   - ./update_transportation_merge.sql