I love a good deep dive into often-overlooked map-related challenges. Here Hanbyul Jo wonders why Mapbox chose to vertically display labels in Hangul, whether the choice improves legibility, and since when Koreans horizontally read and write Hangul instead of vertically.
Form the Overture blog:
Meta, one of the founding members of Overture Maps Foundation, has successfully transitioned its suite of global basemaps used across apps such as Facebook and Instagram to Overture’s base data layers
It seems that this move also marks the end of Daylight Map Distribution.
The goal was to build an up-to-date, validated, global basemap using OpenStreetMap that could power all of Meta’s use cases. Daylight included validation checks designed to find and correct mapping errors, building footprint detections, lidar derived building heights, name translations, and a global land cover layer. This global dataset was made publicly available and has served the maps at Meta for the past five years.
As a founding member of Overture, Meta has been deeply involved in developing the processes that produce Overture’s published data. In fact, the very same validation processes and pipelines that were used in Daylight are also now used to produce Overture’s regular data releases.
Notice the past tense. There is no official announcement confirming Daylight’s end of life. But there hasn’t been an update since November 2024 after more than four years of at least twice-monthly releases.
Off the back of a specialist meeting on GeoAI, Anita Graser shares a summary of recent research from scholars in the field.
If you are a student or early-career developer and want to make your mark in open-source geospatial, the following geospatial organisations are participating in the 2024 Google Summer of Code:
Applications from candidates will be accepted between 18 March and 2 April, while the internships run for 12 weeks over the summer.
The Protomaps project, a set of protocols and software for serving fast map tiles over the Web, is transitioning to a new funding model.
Previously, Protomaps’ main source of funding was selling one-time downloads of basemap tiles. Now you can purchase access to commercial, hosted tile APIs and hands-on support through the project’s GitHub sponsorship page:
In addition, all components needed to produce PMTiles and run the Protomaps infrastructure are open source; you can run the APIs yourself for the infrastructure cost only.
Developing open-source projects and financing them by selling professional services for development, maintenance and knowledge transfer is an idea some German geospatial businesses, like Terrestris or Wheregroup, have successfully implemented for years. But I haven’t seen it yet for a company selling map tiles.
Development Seed’s data team in Ayacucho, Peru has spun out to form GeoCompas:
I am pleased to announce that the skilled data and annotation team from DevSeed is separating to become an independent employee-owned company called GeoCompas. The Geo AI practice at Development Seed has grown, and the GeoCompas team has been essential in providing crucial mapping, annotation, QA, and automation support. Their expertise in geodata is now available to everyone.
The new company focusses on OpenStreetMap editing, data labelling and annotation for AI projects, but also development of data processing pipelines and web services.
Darren Wiens of SparkGeo demonstrates an AI-driven approach to generating audio descriptions for interactive web maps. The overall process is simple yet effective:
It’s one example of how new generative AI technologies can be put to good use. It is simply impossible for humans to provide alt-text for large interactive maps and AI is the one (the only?) way to make textual descriptions of maps scalable.
This looks like an interesting event: Element84 are hosting a three-hour workshop on user-centred design with a specific focus on geospatial applications:
Join us for a comprehensive 3-hour experience tailored for UX Designers delving into geospatial patterns, Frontend Developers honing essential UX design skills, as well as Leaders and Management keen to understand the profound impact of effective design on geospatial workflows. Immerse yourself in geospatial patterns, tackle hands-on design challenges, and absorb essential UX principles meticulously crafted to meet the specific demands of the geospatial sector. Whether you’re looking to seamlessly integrate geospatial patterns into your design mockups, enhance your understanding of how users will interact with your software, or understand the value of a targeted design process, this workshop ensures you depart with practical skills for creating useful and impactful geospatial applications.
The workshop is scheduled for 19 March. Tickets are 75USD.
In short:
- MIT license
- TypeScript codebase
- Contributions welcome
Placemark is the map editor software-as-a-service that I built for several years. It’s a website where you can import, create, edit, export, publish, and visualize geospatial data.
The code is on GitHub and already receiving contributions.
You can serve PMTiles directly from a cloud object storage but in some cases, you want to control who accesses data and how often—and you need a server for that. Craig Kochis wrote up two examples of how to serve PMTiles using a NodeJS server application from a co-located file and S3.
I tried to estimate the cost of hosting Protomaps on AWS before; now there’s a handy tool for that. Based on monthly tile requests you can compare the cost of hosting Protomaps on AWS or Cloudflare with the cost of using maps from Google or hosted map-tile providers.
A webinar on cloud-native geospatial technologies and their applications in the pacific region features four speakers:
The two-hour recording is now available online.
collection-transaction is a new STAC extension proposing an API for managing STAC collections and providing a clean REST interface for managing collection metadata:
POST to create,PATCH or PUT to update, andDELETE to delete an item.stac-fastapi’s transaction extension already supports collection management, but its implementation is inconsistent with transactions API for items. collection-transaction will align both APIs and provide a consistent standard for managing STAC metadata.
Brian Timoney contemplates why talented GIS professionals seek employment in other areas, tracing the problem to broad scoped roles and lower pay compared to similar roles in other industries.
Even discounting the vagaries of job titles, the skew in the distribution of GIS Analyst salaries is notable because it implies a stagnant middle grinding away while effectively blocking the ability of new entrants to rapidly ascend the wage scale as you’d find in more “normal” distributions
I have no numbers to back this up, but my gut feeling is that most GIS Analysts work in civil service. Salaries in civil service are tightly regulated; you don’t just negotiate a higher pay unless your department has a role in a higher salary band and you land that job. That might explain why we’re seeing this skew towards lower salaries and the limited upward mobility.
That said, Brian’s point is correct: GIS-specific roles are often too broadly scoped and underpaid.
The recordings from this year’s PostGIS day are available on Youtube; just in time so you can add them to your festive tech playlist.