Planet GeoRezo
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Free and Open Source GIS Ramblings: QGIS to (Geo)Pandas follow-up
The conversation around Looking for better ways to convert between QGIS VectorLayer and (Geo)DataFrame is continuing over at https://fosstodon.org/@underdarkGIS/115442614331293320
What I’ve learned so far:
- QgsVectorLayer.as_geopandas() has landed in QGIS master on 13 Oct 2025.
- There’s also QgsVectorLayer.field_to_numpy() which will be useful for many applications and has landed on 29 Oct 2025.
- QgsArrowIterator is in the works right now.
Exciting times for spatial data science tooling
Mappery: Halloween at Kenwood
Kenwood is a stately home and park near to where I live. They have a Halloween event on at the moment with an array of displays and activities around the park.
This isn’t normally a graveyard
gvSIG Team: Tecnología al servicio de la memoria: gvSIG Online en el cementerio de Cullera
El Ayuntamiento de Cullera ha dado un paso más en su proceso de transformación digital con la incorporación de un panel táctil interactivo en el cementerio municipal, que permite a cualquier persona localizar fácilmente la ubicación exacta de sus familiares y allegados.
Esta nueva herramienta se basa en la plataforma gvSIG Online, desarrollada por SCOLAB, y forma parte de un proyecto de digitalización que utiliza tecnologías geoespaciales para mejorar la gestión y el acceso a la información de todo el municipio.
...The Working Class Heroes Map
geomatico: 25 años de vida de @agresta
Este viernes 17 de octubre estuvimos de cumpleaños. Agresta celebraba sus 25 años y, por suerte, teníamos invitación. Agresta es un nombre que nos acompaña desde hace tiempo, pero que tuvimos la oportunidad de desvirtualizar en el 9º Congreso Forestal celebrado en Gijón este 2025. Es una cooperativa del sector forestal, y precisamente sobre esas dos ideas —cooperativismo y sector forestal— giró el evento del viernes.
La primera parte estuvo dedicada al cooperativismo. Agresta es una cooperativa orgullosa de serlo, y organizó una mesa redonda con varias invitadas del mundo cooperativo. Hablaron sobre la importancia del cooperativismo, sus fortalezas y su situación actual, tanto a nivel nacional como internacional. Nos quedamos con esta maravilla:
...What's Missing from Human History?
Mappery: Salt Lake City Airport
We love a floor map and Ken spotted this beauty with flight routes at Salt Lake City Airport
TorchGeo: v0.7.2
This is a bugfix and maintenance release. While there are no new features or API changes, this release includes important bug fixes, documentation improvements, and minor enhancements across datasets, models, and testing.
...
Mappery: Yokohama Landmark Tower
Another floor map, this time from Kenneth Wong “a giant map of Yokohama on Yokohama Landmark Tower’s observation deck
An enormous map spreading out the floor is always a cool thing to me” – I agree
Preparing for the #30DayMapChallenge
gvSIG Team: Más allá del prompt perfecto. Formando desarrolladores, no operadores de IA
Hola a todos.
Últimamente, las redes sociales y las plataformas de prompts se han llenado de una especie de mercado mágico. Un sitio como Promptfy promete cientos de “recetas listas para usar” que, con solo copiar y pegar, resuelven problemas complejos de IA. Y no hablemos de LinkedIn o X, donde un post con un “prompt infalible” para generar código Python acumula likes como si fuera “el santo grial”. Entiendo el atractivo.En un mundo donde se valora cada vez mas el producir mas en menos tiempo ¿quién no querría un atajo directo a la productividad?
...The Most Distressed Communities in the USA
Mappery: Miller Lite
Ken spotted this carton of beer in his local supermarket.
Mergin Maps: [Blog] Photo sketching is now available in Mergin Maps
Mappery: Matilda, the Musical
Clare spotted this Mobile Library Map when rewatching Matilda the Musical. “Just rewatched Matilda the Musical and spotted the map
inside the Mobile Library when Matilda rushes out. It was acquired on pinboards from a reuse site – from the Studios!!
Amazing to think of all the art created for film and TV that may only get 0.1s on screen”
Lutra consulting: Improved Access to Microsoft Planetary Computer in QGIS via STAC
Watch the USA Grow, State by State
Free and Open Source GIS Ramblings: Looking for better ways to convert between QGIS VectorLayer and (Geo)DataFrame
Plugin developers who want to use (Geo)Pandas-based functionality in their plugins regularly face the challenge of converting QGIS vector layers to (Geo)DataFrames. There is currently no built-in convenience function.
In Trajectools, so far, I have been performing the conversion manually, looping through all features and taking care of tricky column types, such as datetimes and geometries:
...
Mappery: Mammoth Mountain
Ken shared this abstract Mammoth mountain ski trail map – $125 seems a fair price but you couldn’t really take it on the slopes with you.
Mappery: London Underground
I spotted this piece by Stephen Graham in a local gallery. I’m not sure that I’d like to have it hanging in my home but then I feel out of love with pop art nearly fifty years ago! I do like the way my photo picks up the old buildings reflected in the gallery window, almost the counterpoint.
The New Multi-Player Geo-Guessing Game!
The Destruction of American Democracy
Mappery: Kyoto Hotel Maps
Kenneth Wong stayed in Kyoto last year and shared these maps from two different hotels. He commented “Two hostels I stayed in Kyoto last Nov. Both have a gigantic city map hung near reception. Comparing the differences of their approaches to map the town and show the tourist spots would be a great cartography article” I am a R-Star fan.
A 3D View of Our Warming Seas
SourcePole: Gedanken zur Zukunft von Interlis
Nach etwa 15 Jahren Mitgliedschaft im informellen Interlis-Kernteam und zwei Jahren in der offiziellen Nachfolgegruppe SOGI GGMM, habe ich mich kürzlich aus diesem Interlis-Gremium zurückgezogen. Der Grund liegt hauptsächlich darin, dass meine Prioritäten in der Geo-Normierung in Themen liegen, die in dieser Arbeitsgruppe nur peripher abgedeckt werden. Nichts destotrotz möchte ich aus diesem Anlass meine Gedanken zur Vergangenheit und Zukunft von Interlis festhalten.
Lutra consulting: Improved Access to Microsoft Planetary Computer in QGIS via STAC
Mappery: The world in Wire
Another one from Cartonaut, does anyone know who the artist is?
The Glasses Free 3D Map
GeoTools Team: GeoTools 33.3 Released
A Divided Map of America’s Overdose Crisis
gvSIG Team: Próximo webinar: Suite gvSIG – la plataforma en software libre de gestión territorial
En el marco de MundoGEO Connect 2026, se organiza la transmisión en vivo Suite gvSIG – la plataforma en software libre de gestión territorial que tendrá lugar el 29 de octubre a las 16h (hora de Buenos Aires), y se transmitirá por YouTube, Linkedin, Facebook e Instagram.
Novedades, integración con IA y casos de uso – regístrate gratis aquí para ver en directo. Yo no me lo perdería, vamos a contar cosas muy, muy interesantes sobre la evolución tecnológica de la Suite gvSIG.
Mappery: Laguna Nimez
Robert Simmon sent s these pics from his trip to Chile and Argentina – a lovely hand=-ainted map of the Laguna Nimez Nature Reserve in El Calafate, Argentina, paired with a small multiples chart showing the local birds. www.lagunanimez.com
County Stripes
GeoServer Team: GeoServer 2.27.3 Release
GeoServer 2.27.3 release is now available with downloads (bin, war, windows), along with docs and extensions.
This is a maintenance release of GeoServer providing existing installations with minor updates and bug fixes. GeoServer 2.27.3 is made in conjunction with GeoTools 33.3, and GeoWebCache 1.27.3.
Thanks to Jody Garnett (GeoCat) for making this release.
...gvSIG Team: ¿Podemos usar la gramática para modelar el conocimiento?
Como desarrollador de software, gran parte de mi trabajo consiste en construir sistemas que interpreten y ejecuten instrucciones. Esto me ha llevado, de forma natural, a preguntarme por la naturaleza del lenguaje que usamos para dar esas instrucciones. La pregunta parecía simple, casi una obviedad: ¿es el lenguaje un simple reflejo de nuestro pensamiento, o es la herramienta con la que lo construimos? Comenzó como una curiosidad personal y se convirtió rápidamente en una reflexion que desmanteló algunas de mis suposiciones más básicas sobre cómo estructuramos la realidad.
No voy a presentar una conclusión definitiva. Voy a contar cómo una serie de preguntas fueron desvelando capas de complejidad que no esperaba. A continuación reproduzco el camino que seguí en la exploración, desde la duda inicial hasta la síntesis final, porque el valor no está solo en el destino, sino en el proceso de reajuste constante.
...A 65,000-Year History Map
Mappery: Wines of Italy
Dave Smith spotted this – “For some reason, I find the lack of surrounding landmasses and slight rotation even more disorienting here than I would expect #mapsinthewild (also #toiletart)”
Mappery: Puffing Billy Railway
Andrew Tyrrell shared these pics, he said “Christmas Eve #MapsInTheWild on the Puffing Billy Railway in Melbourne. I wandered across this a few times and didn’t give it much thought. Then I realised it’s a minimalist map of the railway, just marking the line and the stations. A great map, but also a fantastic experience riding the train!”
We love this one
No Kings, No Tyrants & No Dictators
Mappery: Map Maker Sauvignon Blanc
Ken didn’t think this was a map in the wild because there’s no map but there is a globe thingy os I reckon it qualifies. He said “That moment when the label on a bottle of wine does its job and makes the sale.”, what I would call a no brainer.
GeoTools Team: GeoTools 34.0 Release
Bird Migrations in a Warming World
Mappery: Carto Carpet
Following on from yesterday’s curtains here are some pics Reinder sent of the carpets in the Inntel Hotel in Utrecht. A bit dizzying but for lovers of maps in the wild, quite a treat.
Mappery: Carto Curtains
Reinder shared these carto curtains from the Inntel Hotel in Utrecht
America - Then & Now
PostGIS Development: PostGIS 3.5.4
The PostGIS Team is pleased to release PostGIS 3.5.4.
This version requires PostgreSQL 12 - 18beta1, GEOS 3.8 or higher, and Proj 6.1+. To take advantage of all features, GEOS 3.12+ is needed. SFCGAL 1.4+ is needed to enable postgis_sfcgal support. To take advantage of all SFCGAL features, SFCGAL 1.5+ is needed.
...
Fernando Quadro: GeoNode + IA: Chatbot para consulta de dados espaciais
Imagine poder conversar com o seu GeoNode como se fosse um assistente técnico:
“Mostre os municípios com população acima de 50 mil.”
“Liste as camadas relacionadas a meio ambiente publicadas em 2024.”
“Quais áreas de risco estão dentro da zona urbana de Florianópolis?”
Essas consultas, que normalmente exigiriam acesso ao banco ou ao painel do GeoNode, podem ser respondidas em segundos por um chatbot integrado com IA.
A ideia deste post é mostrar como criar um assistente geoespacial inteligente, capaz de:
- Compreender perguntas em linguagem natural;
- Traduzir em chamadas à API do GeoNode (ou SQL/PostGIS);
- Retornar respostas estruturadas (tabelas, nomes de camadas, metadados, links);
- E até gerar mapas dinâmicos a partir das consultas.
1. O papel do GeoNode como fonte de conhecimento geoespacial
...
Mappery: Wooden Poland (Maine)
Doug Greenfield spotted this hand carved wooden map of Poland, Maine
How to Create a Birdsong Map
Oslandia: (Fr) Audit QGIS / EPTB Eaux & Vilaine
Sorry, this entry is only available in French.
Oslandia: (Fr) [Témoignage client] Émilie Bigorne, géomaticienne EPTB Loire
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Fernando Quadro: Compilar o GDAL com MrSID no SuSe Linux
Prezados leitores,
Nesses últimos dias precisei instalar o GDAL e o MrSID em uma máquina que rodava o SuSe Linux Enterprise Server 15 SP6 (SLES). Como a biblioteca libgdaljava não estava disponível eu precisei compilar tudo na mão. Acabei passando por alguns perrengues, mas no final consegui compilar e habilitar tudo no GeoServer. Vou compartilhar o passo a passo, caso alguém esteja passando pelo mesmo problema:
1. Instalar SDK do MrSID
Para compilar o MrSID é necessário baixar o seu SDK no site da Extensis. A versão utilizada nesse tutorial foi: MrSID DSDK 9.5.5.5244 – rhel9.x86-64.gcc1131
> wget https://bin.extensis.com/download/developer/MrSID_DSDK-9.5.5.5244-rhel9.x86-64.gcc1131.zipAgora vamos extrair e mover o SDK para a pasta /opt:
...
Fernando Quadro: GeoServer + IA: geração automática de camadas de heatmap
Os mapas de calor (heatmaps) são uma das formas mais intuitivas de visualizar densidade de ocorrências geográficas, seja para representar crimes, atendimentos de saúde, pontos de coleta de resíduos ou eventos climáticos.
No GeoServer, podemos gerar mapas de calor usando o WMS Heatmap Rendering Transform, mas configurar isso manualmente para dezenas de camadas pode ser trabalhoso.
Neste post, vamos mostrar como automatizar esse processo com Python + IA, criando um pipeline que:
- Analisa automaticamente seus dados espaciais;
- Gera os parâmetros ideais do heatmap (raio, cores, intensidade);
- Publica o estilo e a camada automaticamente no GeoServer;
- Pode ser aplicado a qualquer dataset de pontos no PostGIS.
1. O conceito de heatmap no GeoServer
...GeoCat: GeoNetwork Enterprise 2023.6 released
Mappery: A very nice drop of red
Elizabeth was enjoying this nice Argentinian wine when she noticed the cork.
Which NYC Neighborhood Do You Live In?
GeoServer Team: GeoServer 2025 Q4 Developer Update
The GeoServer team is making great progress on our 2025 roadmap plans, with CITE Certification Achieved, and GeoServer 3 underway, the project is going well.
Thanks to GeoServer 2025 sponsors:
CITE CertificationWe are really happy to the see the CITE Certified banner restored to the main GeoServer website for calendar year 2025. Andrea continues to work on certifying the new OGCAPI services:
-
OGCAPI - Tiles: Passing tests on Team Engine 2.0 Engine
...
GeoServer Team: GeoServer 2.28.0 Release
GeoServer 2.28.0 release is now available with downloads (bin, war, windows), along with docs and extensions.
This is a stable release of GeoServer, recommended for production use. GeoServer 2.28.0 is made in conjunction with GeoTools 34.0, GeoWebCache 1.28.0, ImageIO-Ext 2.0.0, and ImageN 0.9.0.
...Oslandia: (Fr) [Story] Oslandia x QWC : épisode 6 / 8
Sorry, this entry is only available in French.
Oslandia: (Fr) [Story] Oslandia x QWC : épisode 1 / 8
Sorry, this entry is only available in French.
Oslandia: (Fr) [En image] Giros 360 : un jumeau numérique pour la Garonne
Sorry, this entry is only available in French.
Oslandia: How Oslandia invests in OpenSource
You may be wondering where Oslandia’s name is coming from ? Or maybe you already know ? In this article we focus on the “OS” part of Oslandia : OpenSource !
Oslandia positions itself as IT expert in the field of OpenSource geographical information systems. QGIS is namely one of the proheminent opensource softwares for the geospatial industry. This position is a key element of our business model.
But do you know how we work behind the scene ? This article will give you an opportunity to discover some of our contributions to the OpenSource ecosystem.
PrinciplesOur general business model is based on projects we carry out for our clients. They fund us to design and implement solutions adapted to their needs and requirements. Part of these developments consist in core development of Opensource software. This allows us to contribute actively to FOSS4G components.
...Fernando Quadro: PostGIS + IA: Automatizando análises espaciais
O PostGIS é, sem dúvida, o coração de qualquer infraestrutura WebGIS moderna.
Ele transforma o PostgreSQL em um verdadeiro motor de análise espacial, capaz de executar desde consultas simples até operações complexas de geoprocessamento.
Mas o que acontece quando combinamos o poder do PostGIS com a Inteligência Artificial (IA)? A resposta é simples e poderosa: análises espaciais automatizadas, executadas a partir de comandos em linguagem natural — sem precisar escrever SQL manualmente para cada consulta.
Imagine perguntar: “Quais bairros estão a menos de 500 metros dos rios?” ou “Quantos pontos de coleta existem por zona de drenagem?”
E o sistema traduzir isso automaticamente em SQL espacial, executar no PostGIS e retornar o resultado.
...
Mappery: Master Plans of Shanghai
Kenneth Wong shared these pics of 6 master plans of Shanghai, from 1930 to 2017, in the Shanghai Urban Planning Exhibition Center.
Drowning Cities in 3D
gvSIG Team: ¿Cómo construir una IA que realmente entienda?
Hola a todos.
En los últimos años, hemos asistido a un avance espectacular en el campo de la Inteligencia Artificial, impulsado principalmente por los Modelos de Lenguaje Grandes (LLMs). Su capacidad para generar texto coherente, traducir idiomas y mantener conversaciones fluidas es, sin duda, impresionante. Es una proeza de la ingeniería y la estadística a gran escala.
Sin embargo, esta misma fluidez nos coloca en una encrucijada fundamental. Nos obliga a hacernos una pregunta que va más allá de la implementación: ¿estamos realmente creando máquinas que entienden, o hemos perfeccionado el arte de la imitación estadística? La respuesta, creo, se encuentra al analizar las dos filosofías fundamentales que hoy compiten, a menudo sin saberlo, en el diseño de la IA.
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Free and Open Source GIS Ramblings: Wrangling hundreds of GPS files with DuckDB, QGIS & Trajectools
The last time I preprocessed the whole GeoLife dataset, I loaded it into PostGIS. Today, I want to share a new workflow that creates a (Geo)Parquet file and that is much faster.
The dataset (GeoLife)“This GPS trajectory dataset was collected in (Microsoft Research Asia) Geolife project by 182 users in a period of over three years (from April 2007 to August 2012). A GPS trajectory of this dataset is represented by a sequence of time-stamped points, each of which contains the information of latitude, longitude and altitude. This dataset contains 17,621 trajectories with a total distance of about 1.2 million kilometers and a total duration of 48,000+ hours. These trajectories were recorded by different GPS loggers and GPS-phones, and have a variety of sampling rates. 91 percent of the trajectories are logged in a dense representation, e.g. every 1~5 seconds or every 5~10 meters per point.”
...Stories of Displacement & Return
How much for a house like this?
How Big was the Roman Empire?
30 Day Map Challenge
India Rules the World Map
Four Ways to Destroy the Earth
Mapping Russia's Attack on Europe
The School Lines That Divide US
The Atlas of American Gun Violence
European Death Zones
The World is Your Canvas with PaintMyMap
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