Dear Hugh, Thanks a lot for looking into this :)
As I have a deadline, therefore I would greatly appreciate if the development team could reply soon :) On Thu, Feb 25, 2016 at 5:44 AM, Hugh Williams <hwilli...@openlinksw.com> wrote: > Hi Maria, > > We are checking this with development as I have found another occurrence of > this error also and do believe the st_distance() function only works with > points … > > There are two other functions, haversine_deg_km() & > dist_from_point_to_line_segment() documented at: > > > http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtGeoSPARQLEnhancementDocs > > but they don’t seem to work either … > > 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 24 Feb 2016, at 23:39, Maria Jackson <maria.jackson....@gmail.com> wrote: >> >> 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 >>>>>>> >>>>>>> >>>>>>> -- > ------------------------------------------------------------------------------ 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
