Neat! It's always exciting to see awesome things like this built on top of the Wikidata Query Service.

One small piece of feedback: the timelines look quite blurry on my computer. Should I file this as a bug report somewhere? :-)

Thanks, and keep up the great work!

Dan

On 10 August 2016 at 12:49, Navino Evans <navino@histropedia.com> wrote:

Hi all,

 

At long last, we’re delighted to announce you can now render sparql queries using the Histropedia timeline engine \o/

Histropedia WikidataQuery Viewer

 

Unlike the main Histropedia site this tool renders timelines with data directly from live Wikidata queries. It lets you map query variables to values used to render the timeline. A few notable extra features compared with the built in timeline view on the Wikidata query service:

Precision - You can render each event according to the precision of the date (as long as you add date precision to your query). It will default to day precision if you leave this out.

Rank – The events on the timeline have a rank defined by the order of your sparql query results. You can also choose a query variable to use for rank, but it’s not really needed if you use ORDER BY in your query to control the order of results. Higher ranked events are placed more prominently on the timeline.

URL – You can choose whichever URL you like from your query results, which will be opened in a new tab when you double click on an event on the timeline.

Automatic colour code / filter – You can choose any variable in your sparql query to use for colour coding and filtering. From what I could tell from the preview, this seems to be the same as the new map layers feature that is close to launch on the Wikidata Query service (which looks awesome by the way!)

Also similar to the ‘group by property’ feature on Magnus’ Listeria tool, but using an arbitrary variable from the sparql results instead of a Wikidata property.

Some cool examples:

Note: click on the droplet icon (top right) to see the colour code key and filter options

• Discoveries about planetary systems, colour coded by type of object (only items with an image and discoverer)
  
• Who's birthday is today? colour coded by country of citizenship
  
• Oil paintings at the Louvre, colour coded by creator
  
• Descendants of Alfred the Great, colour coded by religion, in Japanese – Note: select ‘no value’ in the filter panel for a fun edit list of people missing religion statement :)
  

More examples on a dropdown list from the query input page in the tool.

 

The tool has been created by myself and fellow Histropedia co-founder Sean using our newly released JavaScript library. We are only just learning to code, and it’s a very early stage app so please let me know if anything breaks!

You can find more info on the JS library (called HistropediaJS) on this announcement from the Histropedia mailing list

 

Cheers!

Navino

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--

Dan Garry

Lead Product Manager, Discovery

Wikimedia Foundation

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