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Import regions from administrative boundaries

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This commit is contained in:
Paul Bienkowski 2023-03-12 12:39:50 +01:00
parent ec53591ce0
commit 7e51976c06
1 changed files with 28 additions and 0 deletions
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28
roads_import.lua
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@ -50,6 +50,9 @@ local MOTORWAY_TYPES = {
"motorway_link",
}
local ADMIN_LEVEL_MIN = 2
local ADMIN_LEVEL_MAX = 8
local ONEWAY_YES = {"yes", "true", "1"}
local ONEWAY_REVERSE = {"reverse", "-1"}
@ -63,6 +66,13 @@ local roads = osm2pgsql.define_way_table('road', {
local minspeed_rural = 60
local regions = osm2pgsql.define_relation_table('region', {
{ column = 'name', type = 'text' },
{ column = 'geometry', type = 'geometry' },
{ column = 'admin_level', type = 'int' },
{ column = 'tags', type = 'hstore' },
})
function osm2pgsql.process_way(object)
if object.tags.highway and contains(HIGHWAY_TYPES, object.tags.highway) then
local tags = object.tags
@ -131,3 +141,21 @@ function osm2pgsql.process_way(object)
})
end
end
function osm2pgsql.process_relation(object)
local admin_level = tonumber(object.tags.admin_level)
if object.tags.boundary == "administrative" and admin_level and admin_level >= ADMIN_LEVEL_MIN and admin_level <= ADMIN_LEVEL_MAX then
regions:add_row({
geometry = { create = 'area' },
name = object.tags.name,
admin_level = admin_level,
tags = object.tags,
})
end
end
function osm2pgsql.select_relation_members(relation)
if relation.tags.type == 'route' then
return { ways = osm2pgsql.way_member_ids(relation) }
end
end