Bert Spaan (@bertspaan.nl)

Bert Spaan

@bertspaan.nl

cartography + data + visualization // building https://allmaps.org // freelance creative technologist

Bert Spaan reposted

@milvus.piaille.fr.ap.brid.gy

Very nice and smooth global elevation viz https://relief.bertspaan.nl/ by @bertspaan.nl@bsky.app I've spent hours browsing... #maps #DEM #gischat

Bert Spaan

@bertspaan.nl

I've made an interactive map for exploring the terrain of the world! It uses @mapterhorn.com data and tiles, and WebGL for dynamic colors and animations. relief.bertspaan.nl/world?lang=en

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Bert Spaan

@bertspaan.nl

You can change the colors, the hillshade settings, turn on borders and labels, and much more!

Bert Spaan

@bertspaan.nl

And even animate the map!

Bert Spaan

@bertspaan.nl

I've made an interactive map for exploring the terrain of the world! It uses @mapterhorn.com data and tiles, and WebGL for dynamic colors and animations. relief.bertspaan.nl/world?lang=en

View full thread

Bert Spaan

@bertspaan.nl

And you can turn on seafloor data, so you can finally see all the hills and mountains hidden under water relief.bertspaan.nl/world?lang=e...

Bert Spaan

@bertspaan.nl

And it supports 3D as well!

Bert Spaan

@bertspaan.nl

I've made an interactive map for exploring the terrain of the world! It uses @mapterhorn.com data and tiles, and WebGL for dynamic colors and animations. relief.bertspaan.nl/world?lang=en

Bert Spaan

@bertspaan.nl

For the Netherlands, it uses data from the AHN, for an even higher resolution: relief.bertspaan.nl/ahn?lang=en#...

Bert Spaan

@bertspaan.nl

8 Apr

12½ years ago, I made a map of all the buildings in the Netherlands. Unexpectedly, people loved it! Ever since, I have been wanting to make an updated version of the map. Newer data, higher resolution, more interactive! I never got around to it, until last week: bertspaan.nl/buildings

bertspaan.nlAll 11.333.878 buildings in the Netherlands

The new map uses a combination of raster tiles and vector tiles to make sure all buildings will always be visible. You can't do this with just vector tiles: a single vector tile would be 10s of megabytes on low zooms. Raster tiles when zoomed out and vector tiles when zoomed in solves this!

Bert Spaan

@bertspaan.nl

9 Apr

And now it's a game as well! Guess the city! bertspaan.nl/buildings/play

Bert Spaan

@bertspaan.nl

8 Apr

bertspaan.nlAll 11.333.878 buildings in the Netherlands

Bert Spaan

@bertspaan.nl

8 Apr

You can still explore the first version of the map here: code.waag.org/buildings/. Then, there were 9,866,539 buildings in the Netherlands. Right now, there are 1,467,339 more: 11,333,878 in total. The new version of the map lets you see where new buildings have been built in the past 10 years.

Bert Spaan reposted

Katie McDonough

@kmcdono.bsky.social

2 Mar

This is a really special map curator JOB working w/@en-dash.bsky.social at @bplmaps.bsky.social. Apply by March 30th. #glam #maps 🗃️ www.leventhalmap.org/about/jobs/c...

leventhalmap.orgCurator or Associate Curator of Maps & Geography - Leventhal Map & Education Center at the Boston Public Library

Bert Spaan reposted

Katie McDonough

@kmcdono.bsky.social

4 Dec 2025

Thrilled to be at Fantastic Futures w/@bertspaan.nl to talk about working w/digitized map collections as research data! You can explore VERY large datasets of text from maps with our prototype #dataviz interface at text-on-maps-viz.allmaps.workers.dev Featuring Rumsey collection maps! #ff2025

text-on-maps-viz.allmaps.workers.devtext-on-maps-viz.allmaps.workers.devNo features selected

Digital Scholarship @ British Library@bldigischol.bsky.social

Welcoming a spectacular crowd today for the first day of Fantastic Futures 2025: AI Everywhere, All at Once! #ai4lam #ff2025 Online registrations are open throughout the next two days so if you couldn't make it in person, register to access the livestream! https://www.conftool. [1/2]

Bert Spaan reposted

Martin R. Kalfatovic

@udcmrk.bsky.social

4 Dec 2025

@bertspaan.nl (Allmaps.org) & @kmcdono.bsky.social speaking on “Text on Maps: From Collection Discovery to Research Data” at #FF2025 bit.ly/44bmrJE / learn more about the @iiif.bsky.social / Allmaps partnership here: bit.ly/446uNlN

Bert Spaan reposted

Katie McDonough

@kmcdono.bsky.social

21 Nov 2025

Congratulations to Allmaps (led by @bertspaan.nl & Jules Schoonman) + @iiif.bsky.social on the announcement of this partnership. It's a fantastic step towards a sustainable, open, digital maps infrastructure and data ecosystem. Learn more at allmaps.org/iiif-partner... & iiif.io/news/2025/11...

Bert Spaan

@bertspaan.nl

27 June 2025

The first version of Allmaps Here is live! Explore historic maps around you and see where you’d be standing—centuries ago. Try Allmaps Here yourself: here.allmaps.org

Allmaps Here can plot GeoJSON routes on historic maps. Create a route and walk around on a map from 1630:

Bert Spaan

@bertspaan.nl

27 June 2025

If maps from your city are missing, you can make them available in Allmaps Here by georeferencing new maps with Allmaps Editor: editor.allmaps.org

Bert Spaan

@bertspaan.nl

27 June 2025

The first version of Allmaps Here is live! Explore historic maps around you and see where you’d be standing—centuries ago. Try Allmaps Here yourself: here.allmaps.org

Bert Spaan

@bertspaan.nl

27 June 2025

See your location on a historic map and share your location on a with friend: "Look, I'm here on this map of Amsterdam! Where are you? here.allmaps.org/maps/7c330e2...

here.allmaps.orgLook where I am on this map!Find historic maps around your current location

Bert Spaan reposted

James Milner

@jameslmilner.com

1 June 2025

catching up with @bertspaan.nl who gave me all these fun @latest.allmaps.org stickers. New version of Allmaps Editor powered by Terra Draw coming soon 😎

Bert Spaan

@bertspaan.nl

1 Apr 2025

I've been very quiet on Bluesky. It's time to change that! Hello, my name is Bert, I'll post about maps and computers.

Bert Spaan

@bertspaan.nl

1 Apr 2025

This week, I'm working on creating dynamic Open Graph images for various parts of allmaps.org. The first is for latest.allmaps.org, a small website that shows the last 250 maps georeferenced with Allmaps.