I am afraid I used bif:st_distance function itself but still I am
getting the following error:
SQL> sparql select ?place ?nplace (( bif:st_distance( ?long,?nlong) )
AS ?distance) WHERE {graph ?g1{?place
<http://www.opengis.net/ont/geosparql#asWKT> ?long} graph ?g4{?nplace
<http://www.opengis.net/ont/geosparql#asWKT> ?nlong}};
Am I loading the data incorrectly. If not, can you please help me
understand as to where am I going wrong?
On Wed, Feb 24, 2016 at 9:01 PM, Hugh Williams <hwilli...@openlinksw.com> wrote:
> Hi Maria,
>
> The following slide on that tutorial shows how to find place within a given
> proximity of each other:
>
>
> http://virtuoso.openlinksw.com/tutorials/sparql/SPARQL_Tutorials_Part_10/SPARQL_Tutorials_Part_10.html#(6)
>
> 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 23 Feb 2016, at 18:33, Maria Jackson <maria.jackson....@gmail.com> wrote:
>>
>>> Is the above query known to be valid ie has been run elsewhere or is this
>>> just a general spatial join query you are trying to get working ?
>> I got inspired to write the query this way from the tutorial :
>> http://virtuoso.openlinksw.com/tutorials/sparql/SPARQL_Tutorials_Part_10/SPARQL_Tutorials_Part_10.html#(4)
>>
>> Essentially, my query wants to retrieve cities ?long and ?nlong which
>> are at a distance of 100 k.m. from each other. I am not able to
>> understand as to what should be the syntax for this query (which
>> Virtuoso also supports). Can you please help me with this a bit?
>>
>
------------------------------------------------------------------------------
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140
_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
