1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
set client_min_messages to WARNING;
\i :top_builddir/topology/test/load_topology.sql
\i ../load_features.sql
\i ../hierarchy.sql
-- This edges perturbate the topology so that walking around the boundaries
-- of P1 and P2 may require walking on some of them
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(9 14, 15 10)');
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(21 14, 15 18)');
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(21 14, 28 10)');
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(35 14, 28 18)');
--- Lineal non-hierarchical
SELECT 'L1-vanilla', feature_name, topology.AsTopoJSON(feature, NULL)
FROM features.city_streets
WHERE feature_name IN ('R3', 'R4', 'R1', 'R2' )
ORDER BY feature_name;
--- Lineal hierarchical
SELECT 'L2-vanilla', feature_name, topology.AsTopoJSON(feature, NULL)
FROM features.big_streets
WHERE feature_name IN ('R4', 'R1R2' )
ORDER BY feature_name;
--- Areal non-hierarchical
SELECT 'A1-vanilla', feature_name, topology.AsTopoJSON(feature, NULL)
FROM features.land_parcels
WHERE feature_name IN ('P1', 'P2', 'P3', 'P4', 'P5' )
ORDER BY feature_name;
--- Areal hierarchical
SELECT 'A2-vanilla', feature_name, topology.AsTopoJSON(feature, NULL)
FROM features.big_parcels
WHERE feature_name IN ('P1P2', 'P3P4')
ORDER BY feature_name;
-- Now again with edge mapping {
CREATE TEMP TABLE edgemap (arc_id serial, edge_id int unique);
--- Lineal non-hierarchical
SELECT 'L1-edgemap', feature_name, topology.AsTopoJSON(feature, 'edgemap')
FROM features.city_streets
WHERE feature_name IN ('R3', 'R4', 'R1', 'R2' )
ORDER BY feature_name;
--- Lineal hierarchical
TRUNCATE edgemap; SELECT NULLIF(setval('edgemap_arc_id_seq', 1, false), 1);
SELECT 'L2-edgemap', feature_name, topology.AsTopoJSON(feature, 'edgemap')
FROM features.big_streets
WHERE feature_name IN ('R4', 'R1R2' )
ORDER BY feature_name;
--- Areal non-hierarchical
TRUNCATE edgemap; SELECT NULLIF(setval('edgemap_arc_id_seq', 1, false), 1);
SELECT 'A1-edgemap', feature_name, topology.AsTopoJSON(feature, 'edgemap')
FROM features.land_parcels
WHERE feature_name IN ('P1', 'P2', 'P3', 'P4', 'P5' )
ORDER BY feature_name;
--- Areal hierarchical
TRUNCATE edgemap; SELECT NULLIF(setval('edgemap_arc_id_seq', 1, false), 1);
SELECT 'A2-edgemap', feature_name, topology.AsTopoJSON(feature, 'edgemap')
FROM features.big_parcels
WHERE feature_name IN ('P1P2', 'P3P4')
ORDER BY feature_name;
DROP TABLE edgemap;
-- End edge mapping }
-- This edge splits an hole in two faces
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(4 31, 7 34)');
-- This edge wraps a couple of faces, to test holes at 2 level distance from parent
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(0 25, 33 25, 33 44, 0 44, 0 25)');
-- Now add a new polygon
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(3 47, 33 47, 33 52, 3 52, 3 47)');
SELECT 'E' || TopoGeo_addLinestring('city_data', 'LINESTRING(10 48, 16 48, 16 50, 10 50, 10 48)');
-- And this defines a new feature including both face 1and the new
-- wrapping face 11 plus the new (holed) face 12
INSERT INTO features.land_parcels(feature_name, feature) VALUES ('P6',
topology.CreateTopoGeom(
'city_data', -- Topology name
3, -- Topology geometry type (polygon/multipolygon)
1, -- TG_LAYER_ID for this topology (from topology.layer)
'{{1,3},{11,3},{12,3}}'));
SELECT 'A3-vanilla', feature_name, topology.AsTopoJSON(feature, null)
FROM features.land_parcels
WHERE feature_name IN ('P6')
ORDER BY feature_name;
SELECT 'P1-vanilla', feature_name, topology.AsTopoJSON(feature, null)
FROM features.traffic_signs
WHERE feature_name IN ('S2')
ORDER BY feature_name;
SELECT topology.DropTopology('city_data');
DROP SCHEMA features CASCADE;
|
