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Fix transportation road segments disconnection (#1109)

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To avoid discontinuous transportation lines between zooms 9 and 11. 
 - Originally limit geometry by length for z9 - z11 (`ST_Length(geometry) > ZRes(11)`)
 - highway z9 to z11 was generalized during import-osm
 - now just create a filtered and generalized z11 table
 - then merge segments in the same way as from (full-featured) osm_highway_linestring and used this merged z11 for mat.view z10 and z9

Close #1107
This commit is contained in:
Tomas Pohanka
2021-04-30 15:39:56 +02:00
committed by GitHub
parent 68ec5c7ac8
commit d0ebdde458
5 changed files with 93 additions and 22 deletions
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12
layers/transportation/mapping.yaml
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@@ -42,18 +42,6 @@ generalized_tables:
sql_filter: ST_IsValid(geometry)
tolerance: ZRES13
# etldoc: osm_highway_linestring_gen_z10 -> osm_highway_linestring_gen_z9
highway_linestring_gen_z9:
source: highway_linestring_gen_z10
sql_filter: (highway IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link') OR highway = 'construction' AND construction IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link')) AND NOT is_area
tolerance: ZRES10
# etldoc: osm_highway_linestring_gen_z11 -> osm_highway_linestring_gen_z10
highway_linestring_gen_z10:
source: highway_linestring_gen_z11
sql_filter: (highway IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link') OR highway = 'construction' AND construction IN ('motorway', 'trunk', 'primary', 'secondary', 'motorway_link', 'trunk_link', 'primary_link', 'secondary_link')) AND NOT is_area
tolerance: ZRES11
# etldoc: osm_highway_linestring -> osm_highway_linestring_gen_z11
highway_linestring_gen_z11:
source: highway_linestring