# Questions about geospatial tutorial **URL:** \ **Category:** Support\ **Created:** [March 31, 2026, 6:56pm UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548 "2026-03-31T18:56:10Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![MaVeLg](https://avatars.discourse-cdn.com/v4/letter/m/e495f1/32.png) [@MaVeLg](https://community.stardog.com/u/MaVeLg)\ **Post date:** [March 31, 2026, 6:56pm UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548/1 "2026-03-31T18:56:10Z")
Dear Stardog support, I just started to use Stardog to eventually set up a knowledge graph with some geospatial features. For the very first steps I followed your "Stardog geospatial" tutorial ( [Stardog Geospatial | Stardog Documentation Latest](https://docs.stardog.com/tutorials/stardog-geospatial) ) and downloaded your example data ( [stardog-tutorials/stardog-geospatial/dclandmarks.ttl at master · stardog-union/stardog-tutorials · GitHub](https://github.com/stardog-union/stardog-tutorials/blob/master/stardog-geospatial/dclandmarks.ttl) ). Then I switched to Studio, created a new database (with the "spatial.enabled" flag enabled!) and imported the example data to the default graph. After that the database has 65 edges. I also added the additional namespaces that are used in that data file. Then I opened a new workspace tab with this query: SELECT \* WHERE { ?s ?p ?o . } LIMIT 1000 This shows 65 results. The example query from the tutorial prefix geo: [http://www.opengis.net/ont/geosparql#](http://www.opengis.net/ont/geosparql#) prefix geof: [http://www.opengis.net/def/function/geosparql/](http://www.opengis.net/def/function/geosparql/) prefix : [http://blog.stardog.com/geons/](http://blog.stardog.com/geons/) SELECT ?geom ?feature { ?f a :Location ; rdfs:label ?feature ; geo:hasGeometry ?geom . ?geom geof:within ("POINT(-77.111 38.855)"^^geo:wktLiteral "POINT(-77.052 38.885)"^^geo:wktLiteral) . } shows 2 results. That all looks fine. When I click an entry in the 65 results table from the first query and choose "Visualize" it switches to Explorer and I see one triple (in this case: "Location" - "type" - "Washington Monument"). Now I don't understand several things: - I thought that when I double click on "Location" that the other landmarks will also appear!? - In general: Double clicking on "Location" or "Washington Monument" does not show anything. I expected the see the "geo:\*" links... - When I perform an "empty search" (with "All v" on the left of the input field) I get "No results". This happens in both "List" and "Graph" view. - According to the documentation ( [Stardog Explorer | Stardog Documentation Latest](https://docs.stardog.com/stardog-applications/explorer/#view-geospatial-data-on-maps) ) Explorer should display the Location instances on a map. But in my case no map is displayed. Am I doing something wrong? Thanks a lot for your help! P.S.: I just saw: [GeoSparql queries not working - #3 by NielsHoffmann](https://community.stardog.com/t/geosparql-queries-not-working/129/3) Do I also have a licence problem? ---
**Author:** ![Joe\_Fagan](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/joe_fagan/32/1400_2.png) [@Joe\_Fagan](https://community.stardog.com/u/Joe_Fagan)\ **Post date:** [April 1, 2026, 8:11pm UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548/2 "2026-04-01T20:11:04Z")
Hi Markus, Everything looks as expected, but you’re missing a model, which is required for Explorer to navigate your data. I’ve attached a model that should work for you. Download the geoModel.trig file. In Studio, go to: Database → Admin → Load Data, then browse to the file. The Load Data dialog will populate the remaining fields automatically (because it is a .trig file), so there’s no need to change them. Then in Explorer, run the query ![image](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/6/6bad91f955b4e7fdaf8c39a9a31d9c6a55f4679f.png) This will find the all Location that have Geometry. You can then click the map icon to view the locations on a map. Thanks Joe [geoModel.trig](https://community.stardog.com/uploads/short-url/3vBb34mpzFrg1zI4rlIoQDHI2jb.trig) (1.5 KB) ---
**Author:** ![MaVeLg](https://avatars.discourse-cdn.com/v4/letter/m/e495f1/32.png) [@MaVeLg](https://community.stardog.com/u/MaVeLg)\ **Post date:** [April 1, 2026, 9:06pm UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548/3 "2026-04-01T21:06:00Z")
Hi Joe, great, that works! Thanks a lot, Markus ---
**Author:** ![MaVeLg](https://avatars.discourse-cdn.com/v4/letter/m/e495f1/32.png) [@MaVeLg](https://community.stardog.com/u/MaVeLg)\ **Post date:** [April 2, 2026, 6:54am UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548/4 "2026-04-02T06:54:12Z")
Hi Joe, one additional question: I managed to visualize locations from your dataset, but no areas (nor my own "street" = WKT-linestring). Is it possible to also draw these elements in the Explorer map? Thanks! ---
**Author:** ![Joe\_Fagan](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/joe_fagan/32/1400_2.png) [@Joe\_Fagan](https://community.stardog.com/u/Joe_Fagan)\ **Post date:** [April 2, 2026, 9:40pm UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548/5 "2026-04-02T21:40:01Z")
Markus, Explorer’s map view is really geared towards showing locations as points on the map. It doesn’t currently render geometries like areas (polygons/envelopes) or lines (e.g. LINESTRING) as shapes on the map. That said, with some creativity you could use points to represent your objects - represent an area using a few key points (e.g. corners or centroid) - sample points along a line to give a visual sense of it Thanks Joe ---
**Author:** ![Joe\_Fagan](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/joe_fagan/32/1400_2.png) [@Joe\_Fagan](https://community.stardog.com/u/Joe_Fagan)\ **Post date:** [April 2, 2026, 9:50pm UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548/6 "2026-04-02T21:50:44Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/3/3f9f3902d31eeae643f65bb1945370dd1658376d.jpeg) Here for example flight paths are represented as positions at 1 min intervals, with point diameter proportional to 1/altitude. Larger points are lower altitude. You can see aircraft landing and taking off. ---
**Author:** ![MaVeLg](https://avatars.discourse-cdn.com/v4/letter/m/e495f1/32.png) [@MaVeLg](https://community.stardog.com/u/MaVeLg)\ **Post date:** [April 3, 2026, 7:20pm UTC](https://community.stardog.com/t/questions-about-geospatial-tutorial/5548/7 "2026-04-03T19:20:46Z")
OK, I understand. No problem, and good to know. I will create a QGIS plugin to read and visualize these geometries on a map…