Rainer Simon Profile picture
Aug 6, 2021 8 tweets 5 min read Read on X
I thought I'd share a bit about what @eltonteb and I are up to with #PeripleoLite, a new JavaScript viewer for geospatial #LinkedOpenData (thread!) Image
#Peripleo is designed to work with data in the #LinkedPlaces and #LinkedTraces formats. (The former is a GeoJSON-flavour, the latter is based on W3C Web Annotations.) github.com/LinkedPasts/li… github.com/LinkedPasts/li…
So what about "Traces"? Traces are things linked to places. A Trace might be your average points-on-a-map dataset (e.g. locations of inscriptions), but also something more complex. In this project, we were specifically interested in geo-tagged text.
#Peripleo loads #TEI text with associated #WebAnnotations and gazetteer data. You can switch between showing the whole Trace (all places in the document), or just the places in your current view - scaled by number of occurrences.
The annotations include tags that you can filter on. A tag filter affects both the map, and the histogram underneath the text (which shows the distribution of annotations over the length of the text). #Peripleo
There's various cross-selection functionality: clicking a place in the text selects it on the map, highlights other occurrences in the text, an updates the histogram to show where the place is mentioned in the text. Same when clicking a place on the map, or setting a tag filter.
When selecting a place in the text, #Peripleo shows lines on the map that connect it to the places mentioned before and afterwards in the text.
All of this runs entirely in the browser, with no server-side parts, and is all open source (MIT-licensed) JavaScript. github.com/pelagios/perip… BTW: we've done this hackathon-style, with an ~8 day dev budget so far. Want to collaborate or support? Do get in touch!

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