[postgis-devel] [PostGIS] #1647: CreateTopology vs toTopoGeom: different behavior on the use of tolerance
PostGIS
trac at osgeo.org
Mon Mar 5 10:20:51 PST 2012
#1647: CreateTopology vs toTopoGeom: different behavior on the use of tolerance
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Reporter: lrssvt | Owner: strk
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 2.0.0
Component: topology | Version: 2.0.x
Keywords: |
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I have noticed a different behavior using the tolerance.
If I set tolerance value to 1, in CreateTopology function get:
[[Image(toleranceCreateTopology.png)]]
while, if I set the same tolerance to toTopoGeom function get:
[[Image(tolerancetoTopoGeom.png)]]
Also, if I set tolerance value to 2 in CreateTopology I get this error:
{{{
ERROR: Invalid edge (no two distinct vertices exist)
SQL state: P0001
Context: PL/pgSQL function "topogeo_addlinestring" line 147 at assignment
SQL statement "INSERT INTO test_topo.relation(topogeo_id, layer_id,
element_type, element_id) SELECT 1, 1, 2,
topogeo_addLineString('test_topo',
'01020000201555000003000000329ABD50D7F92041C6FE24DDB5AF014159102D22D7F92041DDB54250BBAF0141FC05F508D7F9204144A619EEC2AF0141'::geometry,
2);"
PL/pgSQL function "totopogeom" line 120 at EXECUTE statement
}}}
I did this test with the SQL script attached!
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/1647>
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