On 11/10/16 4:19 PM, Peter F. Patel-Schneider wrote: > I modified rdfbox.c to take out the two (!) checks that object to literals of > type geo:wktLiteral with coordinate system URIs. Currently I'm loading a > wikidata dump into virtuoso and nothing is complaining (so far). > > I expect that working with this data will produce query-time errors when > trying to do geographic operations on these values. Hopefully these errors > will produce SPARQL errors that can be handled and not bring down virtuoso. > > peter > > PS: I would be nice to be able to turn the errors into warnings, but I > couldn't figure out how to do that. > > PPS: It also would be nice to have an option that ignores triples with > problems when loading large RDF documents. I think that this has been asked > for in the past as well.
Loading that ignores warnings is something we are looking into. Kingsley > > > On 11/10/2016 05:29 AM, Jerven Tjalling Bolleman wrote: >> Dear Kingsley, >> >> I imagine that Peter is referring to >> >> Req 10 >> All RDFS Literals of type geo:wktLiteral shall consist of an >> optional URI identifying the coordinate reference system followed by >> Simple Features Well Known Text (WKT) describing a geometric value. >> Valid geo:wktLiterals are formed by concatenating a valid, >> absolute URI as defined in [RFC 2396], one or more spaces (Unicode >> U+0020 character) as a separator, and a WKT string as defined in >> Simple Features [ISO 19125-1]. >> >> From page vii of the GeoSPARQL standard. However, I can imagine that you >> have >> few customers demanding GeoSPARQL support for Mars at this time ;) >> >> So it is just a feature not yet implemented... >> >> Regards, >> Jerven >> >> On 2016-11-10 14:06, Kingsley Idehen wrote: >>> On 11/9/16 10:25 PM, Peter F. Patel-Schneider wrote: >>>> Through a process of bisection I found the datum that is not handled >>>> by >>>> virtuoso. It is >>>> >>>> wd:Q24227 a wikibase:Item ; >>>> wdt:P625 "<http://www.wikidata.org/entity/Q111> Point(351.83 >>>> -14.47)"^^geo:wktLiteral . >>>> >>>> i.e., a point on Mars. >>>> >>>> Is virtuoso supposed to be able to handle other coordinate systems? >>>> If not, >>>> how can it handle Wikidata and other information sources that have >>>> points not >>>> on the surface of the earth? >>>> >>>> peter >>> A valid RDF triple (or datum) would take the form: >>> >>> wd:Q24227 a wikibase:Item ; >>> wdt:P625 "Point(351.83-14.47)"^^geo:wktLiteral . >>> >>> Thus, you have a problematic triple. >>> >>> >>> Kingsley >>> >>> >>>> >>>> On 11/08/2016 07:23 PM, Hugh Williams wrote: >>>>> Hi Peter, >>>>> >>>>> What is the Virtuoso version your are using ( run “virtuoso-t -?”) ? >>>>> >>>>> Against the latest 07.20.3217 build the following point geometry >>>>> loads >>>>> successfully with the ttlp function: >>>>> >>>>> SQL> ttlp ('@prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> >>>>> @prefix >>>>> virtrdf: <http://www.openlinksw.com/schemas/virtrdf#> <point> >>>>> geo:geometry >>>>> "point(1.2 22.4"^^virtrdf:Geometry .', 'xxx', 'graph'); >>>>> >>>>> Done. -- 10 msec. >>>>> SQL> sparql select * from <graph> where {?s ?p ?o}; >>>>> s >>>>> p >>>>> o >>>>> LONG VARCHAR >>>>> LONG VARCHAR >>>>> LONG VARCHAR >>>>> _______________________________________________________________________________ >>>>> >>>>> http://xxx/point >>>>> http://www.w3.org/2003/01/geo/wgs84_pos#geometry >>>>> POINT(1.2000000476837 22.39999961853) >>>>> >>>>> 1 Rows. -- 2 msec. >>>>> SQL> >>>>> >>>>> Best Regards >>>>> Hugh Williams >>>>> Professional Services >>>>> OpenLink Software, Inc. // >>>>> http://www.openlinksw.com/ >>>>> Weblog -- http://www.openlinksw.com/blogs/ >>>>> LinkedIn -- http://www.linkedin.com/company/openlink-software/ >>>>> Twitter -- http://twitter.com/OpenLink >>>>> Google+ -- http://plus.google.com/100570109519069333827/ >>>>> Facebook -- http://www.facebook.com/OpenLinkSoftware >>>>> Universal Data Access, Integration, and Management Technology >>>>> Providers >>>>> >>>>>> On 9 Nov 2016, at 02:34, Peter F. Patel-Schneider >>>>>> <pfpschnei...@gmail.com >>>>>> <mailto:pfpschnei...@gmail.com>> wrote: >>>>>> >>>>>> Hi: >>>>>> >>>>>> I'm trying to get virtuoso to work with geometry data types. >>>>>> >>>>>> I noticed that the version of virtuoso that I am using requires that >>>>>> the data >>>>>> type names be in ALL CAPS (e.g., POINT). Has this been fixed in >>>>>> the current >>>>>> version of virtuoso? >>>>>> >>>>>> peter >>>>>> >>>>>> ------------------------------------------------------------------------------ >>>>>> Developer Access Program for Intel Xeon Phi Processors >>>>>> Access to Intel Xeon Phi processor-based developer platforms. >>>>>> With one year of Intel Parallel Studio XE. >>>>>> Training and support from Colfax. >>>>>> Order your platform today. http://sdm.link/xeonphi >>>>>> _______________________________________________ >>>>>> Virtuoso-users mailing list >>>>>> Virtuoso-users@lists.sourceforge.net >>>>>> <mailto:Virtuoso-users@lists.sourceforge.net> >>>>>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >>>> ------------------------------------------------------------------------------ >>>> Developer Access Program for Intel Xeon Phi Processors >>>> Access to Intel Xeon Phi processor-based developer platforms. >>>> With one year of Intel Parallel Studio XE. >>>> Training and support from Colfax. >>>> Order your platform today. http://sdm.link/xeonphi >>>> _______________________________________________ >>>> Virtuoso-users mailing list >>>> Virtuoso-users@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >>> >>> -- >>> Regards, >>> >>> Kingsley Idehen >>> Founder & CEO >>> OpenLink Software (Home Page: http://www.openlinksw.com) >>> >>> Weblogs (Blogs): >>> Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ >>> Blogspot Blog: http://kidehen.blogspot.com >>> Medium Blog: https://medium.com/@kidehen >>> >>> Profile Pages: >>> Pinterest: https://www.pinterest.com/kidehen/ >>> Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen >>> Twitter: https://twitter.com/kidehen >>> Google+: https://plus.google.com/+KingsleyIdehen/about >>> LinkedIn: http://www.linkedin.com/in/kidehen >>> >>> Web Identities (WebID): >>> Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this >>> : >>> http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> Developer Access Program for Intel Xeon Phi Processors >>> Access to Intel Xeon Phi processor-based developer platforms. >>> With one year of Intel Parallel Studio XE. >>> Training and support from Colfax. >>> Order your platform today. http://sdm.link/xeonphi >>> _______________________________________________ >>> Virtuoso-users mailing list >>> Virtuoso-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users > ------------------------------------------------------------------------------ > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today. http://sdm.link/xeonphi > _______________________________________________ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users -- Regards, Kingsley Idehen Founder & CEO OpenLink Software (Home Page: http://www.openlinksw.com) Weblogs (Blogs): Legacy Blog: http://www.openlinksw.com/blog/~kidehen/ Blogspot Blog: http://kidehen.blogspot.com Medium Blog: https://medium.com/@kidehen Profile Pages: Pinterest: https://www.pinterest.com/kidehen/ Quora: https://www.quora.com/profile/Kingsley-Uyi-Idehen Twitter: https://twitter.com/kidehen Google+: https://plus.google.com/+KingsleyIdehen/about LinkedIn: http://www.linkedin.com/in/kidehen Web Identities (WebID): Personal: http://kingsley.idehen.net/dataspace/person/kidehen#this : http://id.myopenlink.net/DAV/home/KingsleyUyiIdehen/Public/kingsley.ttl#this
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