Roger Veciana Rovira

17 Followers
69 Following
37 Posts
Meteorologia, mapes, programació, ia

When D3 was first released in February 2011, it transformed how we build data visualizations for the web and ushered in a new age of unbridled creativity in information design, data journalism, science communication, and beyond. Today, it remains the backbone of modern, interactive data visualization.

Happy 15th birthday, D3. 🎂
https://d3js.org

If you write about the messy reality behind "free" internet services: we're seeing #OpenStreetMap hammered by scrapers hiding behind residential proxy/embedded-SDK networks. We're a volunteer-run service and the costs are real. We'd love to talk to a journalist about what we're seeing + how we're responding. #AI #Bots #Abuse
When used carelessly, animation can distract from data visualizations. Check out these best practices for delivering better animations in data visualizations. https://observablehq.com/blog/effective-animation
Five ways to effectively use animation in data visualization

Animation can be a distraction in data visualization. Or, when applied effectively, it can enhance user engagement, reveal trends, and help viewers track patterns across metrics. Here are five ways to use animation for better data viz.

Observable

🚨 Now available in English! The Spanish National Police have dropped Veripol, their AI tool for detecting false reports. The Interior Ministry admits it’s not valid in court.

🤖 How reliable was it? Find out in our latest investigation on #algorithms.

🔗 Read more:

https://civio.es/transparencia/2025/03/25/national-police-stop-using-veripol-its-star-ai-for-detecting-false-reports/

Spanish National Police stop using Veripol, its star AI for detecting false reports

The Ministry of the Interior states that they have rejected its use because it is not valid in judicial proceedings.

Civio
The hour being changed, at Stonehenge
Celebrating the month of Ramadan redoing one of my favourite visualisations, now using canvas!
https://observablehq.com/d/7a0a8c684e21dfd9
Animated arabic kufic calligraphy with D3

An old example I did when blocks existed! Trying new ways to do the same Kufic calligraphy has impressed me since long ago. This example is from the walls of the Gudi Khatun Mausoleum in Nakhchivan, Azerbaijan. Gudi Khatun Mausoleum The text is animated in the correct order to understand how the words are ordered. The meaning of the text is There is no God but God, and Muhammad is His prophet. May God bless him. I use the stroke style to animate, but the image has to be cut in chunks to do it, or each lette

Observable
He escrit una guia en català sobre Mastodon per a usuaris de Bluesky. https://web.mat.upc.edu/joaquim.puig/posts/mastodon-cat/
Blog of Joaquim Puig – Guia de Mastodon per a usuaris de Bluesky

¿Sabéis quién le daba duro a los constructores corruptos? EL EQUIPO A

Announcing FediMeteo – Weather in the Fediverse!

UPDATE: I have created an account for updates and other information on FediMeteo - follow the account @admin to stay updated!

UPDATE: Ireland, Poland, Portugal and Switzerland have just been added

Weather has always influenced our lives: from agriculture to outdoor activities, to extreme events that, thanks to modern technology, can now be predicted with greater reliability. Personally, weather plays a significant role in my daily decisions, which is why I decided to create a service tailored for the Fediverse.

FediMeteo uses Open-Meteo data to publish updates every 6 hours, including current weather conditions, forecasts for the next 12 hours, and predictions for the upcoming days. Each country is served by its own dedicated instance (e.g., it.fedimeteo.com for Italy), managed through snac to ensure simplicity and efficiency in publishing.

You can follow FediMeteo directly in the Fediverse (on Mastodon and compatible platforms), via RSS, or by visiting the dedicated page for your city (e.g., fr.fedimeteo.com/paris).

Currently supported countries include:
Austria, Germany, France, Ireland, Italy, Netherlands, Poland, Portugal, Spain, Switzerland and the United Kingdom, – with many more regions coming soon!

FediMeteo is hosted on a FreeBSD-based VPS, with each country isolated in its own jail to ensure security and scalability.

Visit the main site to explore the national instances and start following your local weather updates today:
https://fedimeteo.com

Happy weather monitoring to all! 🌦️

FediMeteo is dedicated to my grandfather, who every evening would give me the weather forecast based on TV, radio, and his personal experience. He would convince me that the weather would be bad, so he had an excuse to accompany me to school instead of me going alone.

#FediMeteo #Announcements #FreeBSD #FediMeteo #WeatherForecasts #Weather #Meteo #snac #Fediverse #Mastodon

FediMeteo - Weather Forecasts on the Fediverse

Real-time weather updates for the Fediverse covering 38 countries

This weekend I had the chance of participating in the hackathon organised by Projecte Aina, that promotes Catalan in technology. We could create a flood alert generator that adapts to each municipality and type of user and auto generates text in different languages and creates the audio for it. All in 24 hours!
It was super cool working again with Daniel Vilanova González and Arturo Lidueña, and getting to know Alfredo Mariño Villablanca. You are all amazing!