Hi Martin,
I like the proposed solution, should I create a ticket for this?
Am 04.02.2010 18:24, schrieb Martin Davis:
This error is due to a design choice in JTS/GEOS, which reflected the
OGC SFS spec - LineStrings are not allowed to have a single point.
For users who use JTS and GEOS directly, this isn't as much of an
issue, because their language environments allow them to catch
exceptions easily. But in PostGIS it might be better to trap this
condition in the isvalid code and return an appropriate result (false).
Daniel Degasperi wrote:
|*Hi,
I have some problems with a MultiLinestring imported with *||*shp2pgsql.
If I try to check it's validity (or try to do anything else on it)*||*:
SELECT
isvalid('0105000020E0670000010000000102000020E06700000100000016DA52BA62A04141FFF3AD290B735241');
*||*I get the Exception in my e-mail subject.
How can I check the geometry, if already isvalid chokes. I could only
select NumPoints(the_geom) and compare it to the allowed range of the
geometry type (e.g. 0 or > 1 for MULTILINESTRINGS).
Can this be considered to be a bug of PostGIS/GEOS?
Software stack:
CentOS 5.4, 64 bit
PostgreSQL 8.2.14 (from CentOS Testing)
PostGIS 1.4.1
GEOS: 3.1.1
*||*Best regards
Daniel
*|
--
Daniel Degasperi
Software Developer
[email protected]
---------------------------
R3 GIS Srl
Via Johann Kravogl 2
I-39010 Merano - Sinigo (BZ)
Tel. +39 0473 494949
Fax. +39 0473 069902
Web http://www.r3-gis.com
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--
Daniel Degasperi
Software Developer
[email protected]
---------------------------
R3 GIS Srl
Via Johann Kravogl 2
I-39010 Merano - Sinigo (BZ)
Tel. +39 0473 494949
Fax. +39 0473 069902
Web http://www.r3-gis.com
-----------------------------
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