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With the Map library, the following query returns this error: "Unable to execute 'send' on 'XMLHttpRequest'"

PREFIX wd: <http://www.wikidata.org/entity/> 
PREFIX wdt: <http://www.wikidata.org/prop/direct/> 

SELECT ?geo 
WHERE {
       wd:Q90 wdt:P3896 ?geo 
} LIMIT 1

Why i am getting the below error?

Sorry, the sparql server sent an error.
You need to allow running insecure content in your navigator or this SPARQL service doesn't exist or timed out or CORS violation or no Access-Control-Allow-Origin header set. (see console log)

Datatypes to support: http://www.opengis.net/ont/geosparql#wktLiteral

Shapes:

• Point(LONG LAT): A single point as described above (Note the lack of a comma)
• Linestring(LONG1 LAT1, LONG2 LAT2, ..., LONGN LATN): A line connecting the specified points (Commas between each point)
• Envelope(minLong, maxLong, maxLat, minLat): A rectangle with the specified corners (Note the commas between each and especially note the somewhat odd ordering of (min, max, max, min)).
• Polygon(LONG1 LAT1, LONG2 LAT2, ..., LONGN LATN, LONG1 LAT1): A filled-in shape with the specified points (Note that a polygon must start and end with the same point, i.e., be closed)

Doc: 11-052r4_OGC_GeoSPARQL_-_A_Geographic_Query_Language_for_RDF_Data.pdf

Update Leaflet :

• Point
• Linestring
• Envelope
• Polygon
• Documentation

Update Google Map: Declined
Google.visualization.Map can not add objects to the map to designate lines or areas. Add objects is only supported by google.maps.Map and you can not use it without a billing account. You can create a new issue if you want Sgvizler2 to support google.maps.Map.

I am trying to represent the result of SPARQL Query in Map. I fed the data (longitude and latitude) in decimal format. I am getting the below error (image) while trying leaflet.visualization and no result in the case of google.visualization.

I tried a similar query for Wiki-data but I am getting the desired output on Map.

I tried with type conversion using BIND but still getting the same error.

Please help me to locate the latitude and longitude on Map.

Hi,

Thank you for creating such a nice tool.
I am very interested to create a visualization Map with my own data.
Kindly share the documentation/video for that.

Regards,

Doc : https://docs.mapbox.com/help/troubleshooting/migrate-legacy-static-tiles-api/#leaflet-implementations

Docs :

• https://www.wikidata.org/wiki/Wikidata:Map_data
• The GeoJSON Format

Support:

• Leaflet
• Declined: Google.visualization.Map does not support GeoJson. GeoJson is only supported by google.maps.Map and you can not use it without a billing account. You can create a new issue if you want Sgvizler2 to support google.maps.Map.

New datatypes to add in DataTable

• xsd:date (yyyy-mm-dd)
• xsd:dateTime (standard ISO 8601 (yyyy-mm-ddThh:mm:ss+01:00 in France))
• xsd:time (standard ISO 8601 (hh:mm:ss))

Need to fix the error in the map when there is an empty result.

If a SPARQL service has not configured correctly CORS.
Sgvizler needs a parameter with the address of a proxy in order to bypass CORS of SPARQL service.

New type of column to add in DataTable : link

Cool view to add: ImageGrid
Example: https://w.wiki/3diT
(test with: https://linkedwiki.com/query/All_paintings_that_depict_a_painting)

Hi,

I wanted to run the editor of sgvizler2 like https://bordercloud.github.io/sgvizler2/tutorial-A_Editor.html in my local machine.

Can you please share the instructions?

Need to improve the behaviour with leaflet:
https://io.datascience-paris-saclay.fr/query/Measuring_instruments_at_university_Paris_Saclay__demo_

Datatable doesn't show image when the image is in the column 0.