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The History of the World Map

It has been a boom week for Wikipedia-sourced history maps. In the last five days I've reviewed Landnotes & Globe of History, and I’ve now stumbled on another Wikipedia based history map - the Time Travel App.Time-Travel App is a world history explorer that uses Mapbox, OpenHistoricalMap, and data from Wikipedia to let you browse historical events, important people, cultural realms, and even
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OSGeo Announcements: [OSGeo-Announce] TorchGeo 0.8.0 Release

OSGeo Announcements: [OSGeo-Announce] TorchGeo 0.8.0 Release

OSGeo TorchGeo 0.8.0 Release - OSGeo

You may have noticed that https://github.com/microsoft/torchgeo is now https://github.com/torchgeo/torchgeo. This is not an accident! TorchGeo now belongs to YOU, please join our monthly Technical Steering Committee meetings! TorchGeo...

Est. reading time: 2 minutes

Full release notes at Release v0.8.0 · torchgeo/torchgeo · GitHub

TorchGeo is a PyTorch domain library, similar to torchvision, providing
datasets, samplers, transforms, and pre-trained models specific to
geospatial data.

...
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Blockbusters USA

Population Paths Day 25 of the #30DayMapChallenge is Hexagons! In response I've created a little hex-map puzzle game. The aim of Population Paths is to create a continuous path from the West Coast to the East Coast, one state at a time by correctly guessing whether each neighboring state has a higher or lower population than the one you’re currently standing on. How to Play You begin
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GRASS GIS: GRASS 8.4.2 released

What’s new in a nutshell The GRASS GIS 8.4.2 release provides more than 35 improvements and bug fixes compared to version 8.4.1. The changes span core GIS modules, GUI, Python support, packaging, and build infrastructure — making GRASS more stable, reliable, and polished for day-to-day use. Most importantly, since the 8.4.0 release: location is now project: The Python API, command line, and graphical user interface are using project instead of location for the main component of the data hierarchy while maintaining backward compatibility.
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Mapping the Property Tax Divide

Most U.S. municipalities rely on property taxes to fund public services. This means that the amount of taxable wealth within each city boundary can create stark inequalities - even between neighboring communities. Wealthy municipalities are able to raise far more revenue than places with lower-value property, allowing affluent enclaves to spend generously while less affluent communities -
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A Literal Map of America

Literal Map of America Today’s #30DayMapChallenge theme is Places and their names. My Literal Map of America reveals the literal meaning behind every U.S. state name (hover over any state on the map and you can reveal its real name). Many of the states have names that reflect physical landscapes, others describe people or tribes, and several are named for royalty. Wisconsin comes from a
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Oslandia: New in QGIS 3.40 : CMYK Support

Oslandia: New in QGIS 3.40 : CMYK Support

Credits : Bru-nO (Pixabay Content License)

Thanks to funding from the Bordeaux Metropolis, I had the chance to work on CMYK (Cyan Magenta Yellow blacK) support in QGIS. The metropolis’ goal is to remove the last barrier preventing their complete migration from ArcGIS to QGIS.

The developments are now complete and will be available in QGIS version 3.40, scheduled for release in October 2024, before becoming the next LTR in February 2025. It should be noted, however, that CMYK support will only be complete in QGIS versions built with Qt 6 (still unofficial version) for reasons explained in the article. On Windows, this version can currently only be installed using OSGeo4W (qgis-qt6-dev version).

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How Much Does it Cost to Live in Every U.S. County?

The Economic Policy Institute has mapped out how much income a typical family of four (two adults and two children) needs to achieve a “modest yet adequate standard of living” in counties across the United States. The EPI's Family Budget Map breaks down costs into seven essential categories: housing, food, child care, transportation, health care, other necessities, and taxes.Load the map, zoom
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TorchGeo: v0.8.0

TorchGeo: v0.8.0

TorchGeo 0.8.0 Release Notes

TorchGeo 0.8 includes 28 new pre-trained model weights and a number of improvements required for better time series support, including a complete rewrite of all GeoDataset and GeoSampler internals, encompassing 8 months of hard work by 23 contributors from around the world.

Highlights of this release Open and independent governance

You may have noticed that https://github.com/microsoft/torchgeo is now https://github.com/torchgeo/torchgeo. This is not an accident!

Note

TorchGeo now belongs to YOU, please join our monthly Technical Steering Committee meetings!

...
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The Map of Human History

You wait an age for a historical Wikipedia map and then two come along at once. Hot on the heels of yesterday's post about Landnotes, we can now explore another Wikipedia-sourced map of human history.The Globe of History is an ambitious new interactive map that attempts to visualize the entire sweep of human history - 6,000 years of wars, inventions, discoveries, philosophers, political
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Icons of Tokyo

Icons of Tokyo I recently visited the Pictograms exhibition at the Japan Center in London. At the heart of this exhibition were a number of icons designed by the Nippon Design Center, Inc., a renowned Tokyo-based design studio.Today's 30DayMapChallenge theme is Icons, and my first thought was: how could I utilize Nippon Design Center's beautiful Tokyo tourism icons? I
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Your Birthday Map

Landnotes I was born on the very first day of the Dominican Civil War (also known as the April Revolution). Meanwhile, on a completely different continent, Luciano Pavarotti was making his La Scala debut in a revival of La Bohùme. Not to brag, but it seems the universe scheduled a pretty dramatic day for my arrival.Over the last twenty years of Maps Mania I’ve seen more Wikipedia maps than I
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Mappery: Europa League Cup

Mappery: Europa League Cup

Ken drew my attention to the EUFA logo on the Europa League Cup. I think the purpose was that Arsenal haven’t won much in the last 20 years while this year’s cup was being held by the Spurs manager Ange Postecoglou who subsequently got sacked (twice within a few months!)

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OSGeo Announcements: [OSGeo-Announce] OSGeo Charter Member election 2025 results

OSGeo Announcements: [OSGeo-Announce] OSGeo Charter Member election 2025 results

OSGeo OSGeo Charter Member election 2025 results - OSGeo

Carlos Eduardo Mota from Brasil LuĂ­s Calisto from Portugal Kateryna Konieva from Portugal Benjamin Webb from United States of America Joseph Emile Honour Percival from Samoa Weston Renoud from Netherlands Felix Delattre from Germany Julia Signell...

Est. reading time: 2 minutes

Dear all,

the CRO is pleased to announce the list of new OSGeo Carter Members:

...
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Time Traveling with Street View

Have you ever wondered what your neighborhood looked like in the 18th century—or even during the Middle Ages? Thanks to Street View and AI, you can now almost find out. TimeJourneyAI is a new application that lets you pick a location in Street View and generate an AI-imagined version of that same spot for any year in history.Liberty 2025rom my limited testing, the historical views
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Mapping the Transatlantic Slave Trade

Back in 2021, Slate published a very impressive animated map The Atlantic Slave Trade in Two Minutes. The map is an incredibly powerful visualization of the massive scale of the transatlantic slave trade, highlighting the trade routes used and the destinations of slave ships over three centuries.Slate’s map includes an interactive timeline that allows you to skip to any year in the
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Oslandia: [Customer Testimonial] Nicolas Godet, ISL Engineering

A hydraulic engineer by training, Nicolas Godet has been working at ISL Ingénierie for just over seven years and holds the position of hydraulic project manager (flood risk, hydraulic structure safety), deputy director of the Saint-Jean-de-Luz facility, and QGIS (and GIS in general) advisor.

He discusses the implementation of QDT and the associated methodology for deploying QGIS across ISL’s IT infrastructure.

What are the objectives of the collaboration?

Before I took charge of deploying QGIS at ISL, it was a bit of a mess: no one had the same version, the same plugins, or the same practices.
Following the switch to QGIS3, there was a desire to standardize the QGIS fleet at ISL to have the same version, the same plugin base, and preconfigured profiles.

An initial, semi-homemade solution was implemented in 2022, but it proved difficult to maintain.

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Winter on Mars

Winter on Mars Today's #30DayMapChallenge is to map "something non-Earth". As the holiday season is fast approaching, I therefore decided to create a little Christmas message from Mars? This latest interactive map lets you explore the Martian surface while enjoying a snowfall animation - all from the comfort of your browser. Exploring Mars in Leaflet The map is built using Leaflet,
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Explore Ancient Tenochtitlan in 3D

You can now explore the heart of the Aztec world on a huge 3D map. Technical artist Thomas Kole, has released an impressive, immersive 3D Tenochtitlan Viewer that allows anyone to navigate the city as it looked on the eve of Spanish contact. Published to coincide with the 700th anniversary of Tenochtitlan’s founding, the interactive model goes far beyond a typical historical map. Instead of
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Make Your Own Ridgeline Plots

Joyplot Map Today's #30DayMapChallenge is to use a New Tool (create your map using a software, language, library, or technique you have never used before). For this challenge I decided to build something using Terrain RGB.My Joyplot Map is an interactive map that turns elevation data into ridgeline plots - right in your browser.This map lets you draw a rectangle anywhere on the globe and view
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Mapping Memorials to the Victims of Fascism

Memorial Markers is an interactive map showing the locations of memorials to those persecuted or murdered by the Nazi regime in Germany. Originally a Munich-based initiative, the Memorial Markers project is now steadily expanding beyond the Bavarian capital. Munich has installed 317 plaques since 2018, each placed at the last known residence of someone persecuted or murdered by the Nazi
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Conway's Game of Life

Conway's Game of Life Today's #30DayMapChallenge is Cell. For this challenge I've created an interactive version of Conway's Game of Life that turns the entire globe into a dynamic cellular automaton.Conway’s Game of Life is a mathematical simulation created by British mathematician John Conway in 1970. It’s not a game in the traditional sense - there’s no winning or losing - but a set of
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Ring of Fire

Ring of Fire Today's #30DayMapChallenge is Fire. For this challenge I have created an interactive map with an animated ring of fire.The map itself is just a basic MapLibre GL instance centered on Washington DC. The fire itself is a Canvas element overlaid on top of the map.In this fire animation hundreds of small particles orbit a central point representing the map center. Each particle has
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Take to the Skies in the Battle of Britain

When the Luftwaffe comes for Britain, will you be ready? Battle of Britain is a new map-based game that puts you in charge of RAF Fighter Command during one of the most pivotal moments of World War II—inviting you to relive the tension, urgency, and strategic decision-making that defined the summer of 1940.Inspired by classic board and computer games of the 1980s, Battle of Britain challenges
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There Are No Roads in London

Streets of London Today's #30DayMapChallenge is to use OpenStreetMap (OSM) data as your primary source.To meet this challenge I decided to use OpenStreetMap data to explore the toponyms of London's streets, visualizing how different road types - Streets, Lanes, Alleys, Courts, Yards, and Avenues - are named and distributed across the City of London.One of my favourite quiz questions is - 'How
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