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|
Feature: Tests for Lua geometry processing functions
Scenario:
Given the OSM data
"""
n1 Tamenity=restaurant,name=point x1.1 y1.2
"""
And the lua style
"""
local points = osm2pgsql.define_node_table('osm2pgsql_test_points', {
{ column = 'name', type = 'text' },
{ column = 'geom4326', type = 'point', projection = 4326 },
{ column = 'geom3857', type = 'point', projection = 3857 },
{ column = 'geomauto', type = 'point', projection = 3857 },
})
function osm2pgsql.process_node(object)
points:insert({
name = object.tags.name,
geom4326 = object:as_point(),
geom3857 = object:as_point():transform(3857),
geomauto = object:as_point()
})
end
"""
When running osm2pgsql flex
Then table osm2pgsql_test_points contains
| node_id | name | ST_AsText(geom4326) | geom3857 = geomauto |
| 1 | point | 1.1 1.2 | True |
Scenario:
Given the 0.1 grid with origin 9.0 50.3
| | | 7 | | | 8 |
| | | | 11 | 12 | |
| 3 | 4 | | 9 | 10 | |
| 1 | 2 | 5 | | | 6 |
And the OSM data
"""
w1 Tnatural=water,name=poly Nn1,n2,n4,n3,n1
w2 Nn5,n6,n8,n7,n5
w3 Nn9,n10,n12,n11,n9
r1 Tnatural=water,name=multi Mw2@,w3@
"""
And the lua style
"""
local tables = {}
tables.ways = osm2pgsql.define_way_table('osm2pgsql_test_ways', {
{ column = 'name', type = 'text' },
{ column = 'geom', type = 'linestring', projection = 4326 },
{ column = 'geomsimple', type = 'linestring', projection = 4326 },
})
tables.polygons = osm2pgsql.define_area_table('osm2pgsql_test_polygons', {
{ column = 'name', type = 'text' },
{ column = 'geom', type = 'geometry', projection = 4326 },
{ column = 'center', type = 'point', projection = 4326 },
{ column = 'type', type = 'text' }
})
function is_empty(some_table)
return next(some_table) == nil
end
function osm2pgsql.process_way(object)
if is_empty(object.tags) then
return
end
tables.ways:insert({
name = object.tags.name,
geom = object:as_linestring(),
geomsimple = object:as_linestring():simplify(0.1)
})
local g = object:as_multipolygon()
tables.polygons:insert({
name = object.tags.name,
geom = g,
center = g:centroid(),
type = g:geometry_type()
})
end
function osm2pgsql.process_relation(object)
local g = object:as_multipolygon()
tables.polygons:insert({
name = object.tags.name,
geom = g,
type = g:geometry_type()
})
end
"""
When running osm2pgsql flex
Then table osm2pgsql_test_ways contains
| way_id | name | ST_AsText(geom) | ST_AsText(geomsimple) |
| 1 | poly | 1, 2, 4, 3, 1 | 1, 4, 1 |
And table osm2pgsql_test_polygons contains
| area_id | name | ST_AsText(geom) | ST_AsText(center) | type |
| 1 | poly | (1, 2, 4, 3, 1) | 9.05 50.05 | POLYGON |
| -1 | multi | (5, 6, 8, 7, 5),(9, 11, 12, 10, 9) | NULL | POLYGON |
Scenario:
Given the grid
| 1 | 2 | | | |
| | 3 | | | 4 |
| | | | | |
And the OSM data
"""
w1 Thighway=primary Nn1,n2,n3,n4
"""
And the lua style
"""
local roads = osm2pgsql.define_way_table('osm2pgsql_test_roads', {
{ column = 'n', type = 'int' },
{ column = 'geom', type = 'linestring', projection = 4326 },
})
function osm2pgsql.process_way(object)
local g = object:as_linestring():segmentize(0.1)
local n = 1
for sgeom in g:geometries() do
roads:insert({
n = n,
geom = sgeom
})
n = n + 1
end
end
"""
When running osm2pgsql flex
Then table osm2pgsql_test_roads contains
| way_id | n | ST_AsText(geom) |
| 1 | 1 | 1, 2 |
| 1 | 2 | 2, 3 |
| 1 | 3 | 3, 20.2 19.9 |
| 1 | 4 | 20.2 19.9, 20.3 19.9 |
| 1 | 5 | 20.3 19.9, 4 |
|
