#mappymondays — Public Fediverse posts

For today’s #MappyMondays, I’m trying something I have never done before: constructing WKT literals using the #Wikidata Query Service (#WDQS) in order to draw linestrings on a map!

So last week I added all of the routes flown by Air New Zealand and Air Chathams into Wikidata and now I get to see these airlines’ route maps using WDQS.

(Maps are based on #OpenStreetMap; © OSM contributors.)

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#AVGeek #OpenData #NewZealand #aviation

For today’s #MappyMondays, I’ll talk about what is probably my now second-most favorite map projection: the “Lee conformal tetrahedral projection – Concialdi rearrangement” aka the Lee–Concialdi projection. 🗺️

This projection was announced in 2020 by Luca Concialdi, the same person behind the Cahill—Concialdi bat map projection that is my current favorite. With the Lee variant projection, it shows that Luca’s preferences for good projections really aligns with my own!

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#MapProjections

1/2 🧵 #MappyMondays: After 1.5 years, I restarted my mini-project to improve the #OpenData for barangays in the #Philippines.

This time, I tackled the 11 barangays of the municipality of Jalajala, Rizal, mapping their borders in #OpenStreetMap, improving their #Wikidata items, and linking the two datasets with each other.

#Jalajala #JalajalaRizal #barangays

Succeeding: https://en.osm.town/@seav/110712695608480737

For this week’s #MappyMondays, let’s try featuring an animated map!

https://youtu.be/u2ezOvWRT_M

This animation depicts the #OpenStreetMap Cavite Road Network Mapping Party that we did back in September 2010 and it was the largest mapping party (aka #FieldMapping) that the OSM #Philippines community ever organized in terms of area covered. This was back when we still didn’t have large-scale access to high-resolution imagery so the only way to map roads was to collect #GPS tracks. 🛰️

Current daylight/nighttime map of the Earth using a #CahillConcialdi (aka bat) #MapProjection.

What’s this projection? https://github.com/seav/cahill-concialdi/

#MappyMondays