Re: [postgis-users] GEOS pointonsurface() threw an error!
I hope to be testing it next week On Wed, Aug 18, 2010 at 4:41 AM, Paragon Corporation wrote: > BTW - If any windows users want to try the trunk version (PostGIS 2.0) -- > we have experimental binaries (fairly recent as of last week) > > Here > http://www.postgis.org/download/windows/experimental.php > > Which includes lots more functions such as ST_MakeValid and ST_Split. As > welll as Polyhedral Surface support and Raster support. > > The PostGIS Team is always very excited to squash bugs early. So please > let > us know if you find problems or have trouble using the binaries. > > > Thanks, > Regina and Leo > http://www.postgis.us > > > > -Original Message- > From: postgis-users-boun...@postgis.refractions.net > [mailto:postgis-users-boun...@postgis.refractions.net] On Behalf Of Andrea > Peri 2007 > Sent: Wednesday, August 18, 2010 1:56 AM > To: postgis-users@postgis.refractions.net > Subject: [postgis-users] GEOS pointonsurface() threw an error! > > >My version is: "POSTGIS="1.5.0" GEOS="3.2.0-CAPI-1.6.0" PROJ="Rel. > >4.6.1, 21 August 2008" LIBXML="2.7.6" USE_STATS" > >PostgreSQL 8.4 running on a WINXP > > > >I was playing with the ST_IsValid() function and the ST_IsValidReason(). > > > >What I notice is the geometry, of course, is not valid. > >Reason: "Self-intersection[-6.4825e+006 -3.15411e+006]" > > > With the trunk version there (postgis 2.0.0) you can try the > ST_MakeValid(..) > > that turn the self-intersction in multi-polygon. > > Regards, > > Andrea. > > > ___ > postgis-users mailing list > postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users > > > ___ > postgis-users mailing list > postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users > ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] GEOS pointonsurface() threw an error!
BTW - If any windows users want to try the trunk version (PostGIS 2.0) -- we have experimental binaries (fairly recent as of last week) Here http://www.postgis.org/download/windows/experimental.php Which includes lots more functions such as ST_MakeValid and ST_Split. As welll as Polyhedral Surface support and Raster support. The PostGIS Team is always very excited to squash bugs early. So please let us know if you find problems or have trouble using the binaries. Thanks, Regina and Leo http://www.postgis.us -Original Message- From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users-boun...@postgis.refractions.net] On Behalf Of Andrea Peri 2007 Sent: Wednesday, August 18, 2010 1:56 AM To: postgis-users@postgis.refractions.net Subject: [postgis-users] GEOS pointonsurface() threw an error! >My version is: "POSTGIS="1.5.0" GEOS="3.2.0-CAPI-1.6.0" PROJ="Rel. >4.6.1, 21 August 2008" LIBXML="2.7.6" USE_STATS" >PostgreSQL 8.4 running on a WINXP > >I was playing with the ST_IsValid() function and the ST_IsValidReason(). > >What I notice is the geometry, of course, is not valid. >Reason: "Self-intersection[-6.4825e+006 -3.15411e+006]" With the trunk version there (postgis 2.0.0) you can try the ST_MakeValid(..) that turn the self-intersction in multi-polygon. Regards, Andrea. ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
[postgis-users] GEOS pointonsurface() threw an error!
My version is: "POSTGIS="1.5.0" GEOS="3.2.0-CAPI-1.6.0" PROJ="Rel. 4.6.1, 21 August 2008" LIBXML="2.7.6" USE_STATS" PostgreSQL 8.4 running on a WINXP I was playing with the ST_IsValid() function and the ST_IsValidReason(). What I notice is the geometry, of course, is not valid. Reason: "Self-intersection[-6.4825e+006 -3.15411e+006]" With the trunk version there (postgis 2.0.0) you can try the ST_MakeValid(..) that turn the self-intersction in multi-polygon. Regards, Andrea. ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] GEOS pointonsurface() threw an error!
On 17 August 2010 22:02, Ricardo Bayley wrote: > I have other 96 invalid geometries in a table of 22k records. > From those 96, only 1 has the Self-intersection invalid reason. > The rest of them have a Ring Self-intersection. These last dont through an > error exception, only the one with the "Self-intersection" error does. > I guess I should do propper geometry validation first. One tip I would recommend is after you clean up your geometries is to add a check constraint to ensure the geometries will always be valid: ALTER TABLE mytable ADD CONSTRAINT enforce_valid_geometry CHECK (ST_IsValid(geometry)); -Mike ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] GEOS pointonsurface() threw an error!
Hi Regina and Leo, My version is: "POSTGIS="1.5.0" GEOS="3.2.0-CAPI-1.6.0" PROJ="Rel. 4.6.1, 21 August 2008" LIBXML="2.7.6" USE_STATS" PostgreSQL 8.4 running on a WINXP I was playing with the ST_IsValid() function and the ST_IsValidReason(). What I notice is the geometry, of course, is not valid. Reason: "Self-intersection[-6.4825e+006 -3.15411e+006]" I have other 96 invalid geometries in a table of 22k records. >From those 96, only 1 has the Self-intersection invalid reason. The rest of them have a Ring Self-intersection. These last dont through an error exception, only the one with the "Self-intersection" error does. I guess I should do propper geometry validation first. Regards On Wed, Aug 18, 2010 at 1:38 AM, Paragon Corporation wrote: > Ricardo, > If you are looking in PgAdmin III, it won't show the geometry if it is too > big. > > You should verify that your multipolygon is valid. Many of the GEOS > functions won't work with invalid polygons. > > SELECT ST_IsValid(yourgeometryhere) > > Also let us know which version of GEOS you are using > > SELECT postgis_full_version(); > > Lots of topology exception issues have been fixed in newer versions of GEOS > so upgrading might fix your problem if you are running a GEOS version older > than 3.2 > > Hope that helps, > Regina and Leo > http://www.postgis.us > > -- > *From:* postgis-users-boun...@postgis.refractions.net [mailto: > postgis-users-boun...@postgis.refractions.net] *On Behalf Of *Ricardo > Bayley > *Sent:* Wednesday, August 18, 2010 12:06 AM > *To:* postgis-users@postgis.refractions.net > *Subject:* [postgis-users] GEOS pointonsurface() threw an error! > > Hi, > > I am calculation the PointOnSurface for a table of polygons. I get this > error message > > > NOTICE: TopologyException: found non-noded intersection between > LINESTRING (857703 1.04022e+006, 857648 1.04019e+006) and LINESTRING (857536 > 1.04019e+006, 857870 1.04019e+006) at 857648 1.04019e+006 > > > ERROR: GEOS pointonsurface() threw an error! > > ** Error ** > > ERROR: GEOS pointonsurface() threw an error! > Estado SQL:XX000 > > I checked the one of the rows that is getting this error with > ST_GeometryType and I get "ST_Multipolygon", although I dont get the > ST_AsText, or any output type. > Any ideas why ? > > > regards > > > Ricardo > > > > ___ > postgis-users mailing list > postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users > > ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
Re: [postgis-users] GEOS pointonsurface() threw an error!
Ricardo, If you are looking in PgAdmin III, it won't show the geometry if it is too big. You should verify that your multipolygon is valid. Many of the GEOS functions won't work with invalid polygons. SELECT ST_IsValid(yourgeometryhere) Also let us know which version of GEOS you are using SELECT postgis_full_version(); Lots of topology exception issues have been fixed in newer versions of GEOS so upgrading might fix your problem if you are running a GEOS version older than 3.2 Hope that helps, Regina and Leo http://www.postgis.us _ From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users-boun...@postgis.refractions.net] On Behalf Of Ricardo Bayley Sent: Wednesday, August 18, 2010 12:06 AM To: postgis-users@postgis.refractions.net Subject: [postgis-users] GEOS pointonsurface() threw an error! Hi, I am calculation the PointOnSurface for a table of polygons. I get this error message NOTICE: TopologyException: found non-noded intersection between LINESTRING (857703 1.04022e+006, 857648 1.04019e+006) and LINESTRING (857536 1.04019e+006, 857870 1.04019e+006) at 857648 1.04019e+006 ERROR: GEOS pointonsurface() threw an error! ** Error ** ERROR: GEOS pointonsurface() threw an error! Estado SQL:XX000 I checked the one of the rows that is getting this error with ST_GeometryType and I get "ST_Multipolygon", although I dont get the ST_AsText, or any output type. Any ideas why ? regards Ricardo ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
[postgis-users] GEOS pointonsurface() threw an error!
Hi, I am calculation the PointOnSurface for a table of polygons. I get this error message NOTICE: TopologyException: found non-noded intersection between LINESTRING (857703 1.04022e+006, 857648 1.04019e+006) and LINESTRING (857536 1.04019e+006, 857870 1.04019e+006) at 857648 1.04019e+006 ERROR: GEOS pointonsurface() threw an error! ** Error ** ERROR: GEOS pointonsurface() threw an error! Estado SQL:XX000 I checked the one of the rows that is getting this error with ST_GeometryType and I get "ST_Multipolygon", although I dont get the ST_AsText, or any output type. Any ideas why ? regards Ricardo ___ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
