Roman Karavia

106 Followers
114 Following
88 Posts
Uncreative coding, geo disinformation, empty stack development, data camouflage. Maps are my territory.
Websitehttps://karavia.ch
GitHubhttps://github.com/rkaravia

We've been working hard on our latest vector style - Transport! Our familiar global transportation map is now available in our Vector Styles API, for use with your #maplibre projects.

https://www.thunderforest.com/maps/transport/preview/vector-styles-api/

It's our most complex client-side style so far, but I'm very pleased with how it's turned out.

Feedback is always welcome!

#thunderforest

Where does your commune host email? I did an analysis via DNS records and plotted it on a map:

https://mxmap.ch/

This is an early version, looking for feedback ๐Ÿ‘€

#digitalsovereignty #dns

MXmap โ€” Email Sovereignty of Swiss Municipalities

Interactive map showing where Swiss municipalities host their official email. DNS analysis of all ~2,100 municipalities, color-coded by provider.

MXmap

Have you ever wanted a clean, scalable SVG map? We've developed a SVG map renderer that can also be used as a MapLibre plugin.

Try it out by clicking the button in the top right-hand corner of this page: https://versatiles.org/versatiles-svg-renderer/demo/

Symbols and text are not yet supported, but contributions are welcome!

Repo: https://github.com/versatiles-org/versatiles-svg-renderer
Visual comparison: https://versatiles.org/versatiles-svg-renderer/e2e/report.html

One of my highlights of yesterday's Mapping USA online conference was osm.kids, a map using #OpenStreetMap that's made for #children! If you're zoomed in, it highlights things like playgrounds, fire stations, schools and ice cream shops.

When you zoom out, you see city and country names and flags so you can learn all about those!

It is so creative and I love it. osm.kids demonstrates so well that you can make maps with OSM that you cannot make with any other map tools out there.

As well as the wind roses I've also added high-resolution terrain data to the map, meaning you can zoom in and see all the mountains and hill at incredible detail.

Thanks to @mapterhorn for making this possible!

New from Development Seed: deck.gl-raster. ๐…๐ฎ๐ฅ๐ฅ๐ฒ ๐œ๐ฅ๐ข๐ž๐ง๐ญ-๐ฌ๐ข๐๐ž ๐‚๐Ž๐† ๐ซ๐ž๐ง๐๐ž๐ซ๐ข๐ง๐ . No server required.

This is a 1.3 ๐ ๐ข๐ ๐š๐›๐ฒ๐ญ๐ž COG, streamed directly into the browser. Explore it yourself: https://developmentseed.org/deck.gl-raster/examples/land-cover/

- GPU-accelerated raster reprojection supports images from nearly all projections
- GPU-accelerated image processing to apply colormaps, filter out nodata values, convert color spaces, & more
- Efficient use of COG overviews to fetch the minimum data required

https://github.com/developmentseed/deck.gl-raster

At FOSS4G Auckland 2025, we, MIERUNE Inc., had four talks about various topics from GTFS to GeoArrow. This is a quick summary of the presentation titles and the links to the slides๐Ÿ”—

https://dev.to/mierune/foss4g-auckland-2025-4pck

FOSS4G Auckland 2025

Kia ora! Last week, we were in Auckland, New Zealand, for FOSS4G 2025. We had a great time and gave...

DEV Community

shipped a new feature on https://placemark.io/ that i've had on the list for 3+ years: drawing with automatic routing.

represents routes as geometrycollections of points + a linestring.

currently uses the mapbox directions api.

very beta - there's some tricky logic around control points that i'l need to get right.

title text: 'They really shouldn't let those small cars drive in traffic. I worry I'm going to kill someone if I hit one! They should have to drive on the sidewalk, safely out of the way.'

desktop link: https://xkcd.com/3167
mobile link: https://m.xkcd.com/3167
explainxkcd: https://www.explainxkcd.com/wiki/index.php/3167

Update: we found someone.
Are you up for 14 days of paid code development starting __today__? Or would you know someone?
A friend of mine is looking for some help writing a prototype. It will be a data-focused React (or similar) web application. Next to web dev competencies you'd need knowledge in Python, PostgreSQL, GIS knowledge a plus, but optional. I would be walking along with you. Remote is fine, can be (almost) any timezone.
DM me if you are interested. Otherwise please boost. #fedihire