Dear Kingsley, Thanks a lot for all the links. I tried running the example queries which you gave, but from the queries it seems function st_distance works only with points. I also found a discussion here: https://groups.google.com/forum/#!topic/linked-geo-data/nxQy719M5EQ regarding the same. I'll greatly appreciate if you could please confirm or refute the same?
On Thu, Feb 25, 2016 at 3:35 AM, Kingsley Idehen <kide...@openlinksw.com> wrote: > On 2/24/16 4:05 PM, Maria Jackson wrote: >> Dear Kingsley, >> >> Sure I'll do that :) But I am a bit novice so I dont know how can I >> use my query against your instances of LOD (Dbpedia essentially has >> spatial geometries in the form of points instead of polygons. And my >> current focus is on polygons) :) >> >> The example polygon which I took is from LinkedGeoData dataset (which >> is a part of LOD). Therefore, I am finding it hard to understand as to >> where am I making mistake? > > Some other examples: > > [1] > http://linkeddata.uriburner.com/HtmlPivotViewer/?url=http%3A%2F%2Flinkeddata.uriburner.com%2Fc%2F86SEH%23%24view%24%3D4%26%24selection%24%3D0%26%24mapCentreX%24%3D4.647604837557583%26%24mapCentreY%24%3D7.9541015625%26%24mapZoom%24%3D7 > -- Result > > [2] > http://linkeddata.uriburner.com/HtmlPivotViewer/edit.vsp?url=http%3A%2F%2Flinkeddata.uriburner.com%2Fc%2F86SEH%23%24view%24%3D4%26%24selection%24%3D0%26%24mapCentreX%24%3D4.647604837557583%26%24mapCentreY%24%3D7.9541015625%26%24mapZoom%24%3D7 > -- Query Source Code > > >> >> On Thu, Feb 25, 2016 at 2:20 AM, Kingsley Idehen <kide...@openlinksw.com> >> wrote: >>> On 2/24/16 3:11 PM, Maria Jackson wrote: >>>> Dear Kingsley, >>>> >>>> I am afraid, I did see >>>> http://kidehen.blogspot.com/2014/02/geospatial-querying-over-linked-open.html. >>>> But I am unable to understand as to why myself and Mr. Hugh are >>>> getting errors with querying spatial data. Can you please help me >>>> understand as to where am I going wrong? >>> Can you try your example using data from our LOD [1] or DBpedia [2] >>> instances? Or a URL against your instance if online. >>> >>> [1] http://dbpedia.org/sparql >>> [2] http://lod.openlinksw.com/sparql >>> >>> Kingsley >>>> On Thu, Feb 25, 2016 at 1:25 AM, Kingsley Idehen <kide...@openlinksw.com> >>>> wrote: >>>>> On 2/24/16 10:31 AM, Hugh Williams 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) >>>>> seeAlso: >>>>> >>>>> [1] >>>>> http://kidehen.blogspot.com/2014/02/geospatial-querying-over-linked-open.html >>>>> >>>>> >>>>> -- >>>>> Regards, >>>>> >>>>> Kingsley Idehen >>>>> Founder & CEO >>>>> OpenLink Software >>>>> Company Web: http://www.openlinksw.com >>>>> Personal Weblog 1: http://kidehen.blogspot.com >>>>> Personal Weblog 2: http://www.openlinksw.com/blog/~kidehen >>>>> Twitter Profile: https://twitter.com/kidehen >>>>> Google+ Profile: https://plus.google.com/+KingsleyIdehen/about >>>>> LinkedIn Profile: http://www.linkedin.com/in/kidehen >>>>> Personal WebID: http://kingsley.idehen.net/dataspace/person/kidehen#this >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> 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 >>>>> >>>> ------------------------------------------------------------------------------ >>>> 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 >>>> >>> >>> -- >>> Regards, >>> >>> Kingsley Idehen >>> Founder & CEO >>> OpenLink Software >>> Company Web: http://www.openlinksw.com >>> Personal Weblog 1: http://kidehen.blogspot.com >>> Personal Weblog 2: http://www.openlinksw.com/blog/~kidehen >>> Twitter Profile: https://twitter.com/kidehen >>> Google+ Profile: https://plus.google.com/+KingsleyIdehen/about >>> LinkedIn Profile: http://www.linkedin.com/in/kidehen >>> Personal WebID: http://kingsley.idehen.net/dataspace/person/kidehen#this >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> 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 >>> >> ------------------------------------------------------------------------------ >> 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 >> > > > -- > Regards, > > Kingsley Idehen > Founder & CEO > OpenLink Software > Company Web: http://www.openlinksw.com > Personal Weblog 1: http://kidehen.blogspot.com > Personal Weblog 2: http://www.openlinksw.com/blog/~kidehen > Twitter Profile: https://twitter.com/kidehen > Google+ Profile: https://plus.google.com/+KingsleyIdehen/about > LinkedIn Profile: http://www.linkedin.com/in/kidehen > Personal WebID: http://kingsley.idehen.net/dataspace/person/kidehen#this > > > > ------------------------------------------------------------------------------ > 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. 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