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    • 16 April 2025

    • sur gvSIG Team: Geoportal y Semana Santa: Planificación y seguridad con información geográfica actualizada

      Posted: 16 April 2025, 11:55am CEST

      La Semana Santa no solo es una de las celebraciones más emblemáticas del calendario, sino también un gran reto organizativo para los municipios. En este contexto, la colaboración entre el Ayuntamiento de Albacete, la Policía Local y la Junta de Cofradías ha permitido desarrollar itinerarios seguros para los desfiles procesionales, utilizando como herramienta clave la Infraestructura de Datos Espaciales, basada en tecnología gvSIG Online.

      Gracias a esta plataforma, que ofrece información geográfica completa y constantemente actualizada, se ha podido planificar con antelación los servicios de emergencia, diseñar recorridos accesibles y seguros, y coordinar los distintos servicios municipales involucrados en la gestión de estos eventos multitudinarios.

      Se ha publicado la información de las distintas procesiones de Semana Santa en el Geoportal de la Policía Local, accesible desde la web del Ayuntamiento y de la IDE de Albacete. La plataforma de gestión de información geográfica de Albacete no solo facilita el acceso a mapas, catálogos y servicios de visualización, sino que se ha convertido en una herramienta indispensable para el diseño de proyectos y la planificación urbana. Según ha destacado Francisco Navarro, teniente de alcalde y concejal de Movilidad, “el Geoportal es un servicio esencial y fundamental que permite conocer la ciudad centímetro a centímetro y nos ayuda en la planificación urbana”.

      La Unidad de Cartografía, Topografía y Geomática del Ayuntamiento ha sido la encargada de elaborar y mantener la cartografía y la información espacial que alimenta esta plataforma. La información se organiza y visualiza en distintos visores temáticos, como el Visualizador de la Policía Local, desde donde se gestiona todo lo relativo a los recorridos procesionales de Semana Santa. Tras la creación de la estructura en la geodatabase por parte del equipo de Topografía, es la Policía Local quien se encarga de mantener actualizados los recorridos, fechas y detalles.

      Además, la IDE de Albacete ofrece a los ciudadanos otras funcionalidades destacadas como el Visor de Urbanismo (Plan General de Ordenación Urbana), el Visor Cartográfico (con cartografía histórica y límites administrativos), el Visor del Cementerio (para localizar sepulturas) o el Visor Feria, que permite gestionar la ocupación de espacios durante grandes eventos.

      Esta experiencia demuestra una vez más el valor de las plataformas basadas en tecnología gvSIG Online para la gestión municipal, la mejora de la eficiencia de los servicios públicos y la implicación de diferentes actores en la toma de decisiones a través de la geoinformación.

      La prensa dice:

      [https:]]

      [https:]]

      [https:]]

    • sur Mappery: Welcome to Bendigo

      Posted: 16 April 2025, 11:00am CEST

      Andrew Tyrrell could have said “Here is one I made before” (readers of a certain age will get the cultural reference) but he was a bit more loquacious and said “Driving to #Queenstown to run my first half marathon tomorrow, and stopped off along Lake Cromwell to admire one of my #MapsInTheWild. I made this in my day job, and there’s one for each of the freedom camping sites managed by Toit? Te Whenua.”

      Nice one, Andrew!

    • sur Hyperlocal Social Media

      Posted: 16 April 2025, 9:05am CEST by Keir Clarke
      Ever wondered what people might say if conversations were pinned to real places - like digital graffiti on a map? That’s exactly the experiment Pintalk is trying out.Created as a minimalist web app, Pintalk invites you to talk where you are - or more accurately, to start or join public text conversations anchored to specific latitude/longitude points. Think of it like a chatroom stapled to a
    • 15 April 2025

    • sur Tim Waters: Whoots updates: Some changes, and add new PHP version

      Posted: 15 April 2025, 5:30pm CEST

      Whoots is a simple tile server proxy for WMS servers. WMS > TMS. So if you have an application that only works with ZYX Google-style tiles and all you have is a WMS server, you can use it to re-route the request.

      It was created way back in 2010! Here’s the post announcing it: WhooTS a small wms to tile proxy – WMS in Potlatch

      There’s been few recent changes.

      • Some validations to the code was added to make it a bit more secure.
      • image/png and image/jpeg will now work. Defaults to png. Optionally pass in ?format=image/jpeg for jpeg
      • You don’t need to have a map= param in the URL for it to work now.
      • Puma server configs added
      • new php port of the code
      • The server at whoots.mapwarper.net was moved to a shared host and is now running the php version

      The code is at [https:]]

    • sur Mappery: Spectacular Highland Hall

      Posted: 15 April 2025, 11:00am CEST

      Jeff Allen shared htis. No idea what or where the building is but this is spectacular.

      A little bit of image search and I discovered that this is Highland Hall on the University of Toronto Scarborough Campus, still spectacular.

    • sur The Tariff Busting Map Game

      Posted: 15 April 2025, 10:27am CEST by Keir Clarke
      Introduction: The Egg CrisisIn a world where breakfast has become a luxury, an evil empire has imposed crippling tariffs on eggs, sending prices skyrocketing. Omelettes are now a distant memory for the average citizen, and scrambled eggs are a delicacy only the wealthy can afford. But hope is not lost! Rebel forces have uncovered a loophole in the empire's trade barriers - by launching eggs

    • sur Kartoza: Streamlining Geospatial Data for GeoPackage Upload

      Posted: 15 April 2025, 2:00am CEST
      My GeoPackage exceeded the 5MB limit due to excess vertices, unused attributes, and residual data. By simplifying geometries and optimizing the database, I reduced it from 9.7MB to 1.6MB.
    • 14 April 2025

    • sur gvSIG Team: Leyenda por mapa de calor en gvSIG Online

      Posted: 14 April 2025, 4:50pm CEST

      En la última versión de gvSIG Online se ha incorporado un nuevo tipo de simbología: la leyenda por mapa de calor. Dicha leyenda permite representar, tanto la densidad de puntos como con valores ponderados, mediante un gradiente continuo de colores.

      En el caso de densidad de puntos podemos ver en qué zonas hay más puntos, y puede ser muy útil para ver dónde hay más farolas en un municipio, dónde ha habido más accidentes… En ese caso todos los puntos tienen el mismo valor.

      Si se utiliza un campo para ponderar, un caso podría ser el de estaciones de tomas de datos, por ejemplo de temperatura, polución…, y donde el campo a ponderar sería el de dichos valores.

      En ambos tipos de leyenda se dispone de dos tipos de gradientes: uno donde se indica el color inicial y color final, y en el que se calcula el gradiente entre esos dos colores, y otro en el que se pueden indicar gradiente de varios colores y el porcentaje de aplicación de cada uno.

      Los otros parámetros que se deben configurar son el radio (en píxeles), que calcularíamos en función de la separación de los puntos que estemos representando, y los píxeles por celda.

      Aparte, si la capa está configurada con parámetro temporal y aplicamos dicha leyenda, podríamos visualizar cómo cambian los gradientes en el tiempo. Por ejemplo si representamos una capa de delitos, podríamos ver si las zonas con más delitos han ido cambiando según el tiempo,

      En el siguiente vídeo podéis ver su funcionamiento:

    • sur Mappery: A Reader’s Guide to Western Massachusetts Bookshops

      Posted: 14 April 2025, 11:00am CEST

      Doug G spotted this, very useful if you are in Western Massachusetts

    • sur Live London Underground Trains

      Posted: 14 April 2025, 9:48am CEST by Keir Clarke
      Live maps displaying the movements of planes, trains, and automobiles have been among my favorite mash-ups over the years, so it seems fitting to launch the third decade of Maps Mania with a beautiful illustration of a live, real-time transit map.The Live Tube Map is a fully interactive, real-time 3D map that lets you watch underground trains move across London as they shuttle through
    • 13 April 2025

    • sur Sean Gillies: Bear training week 8 recap

      Posted: 13 April 2025, 10:02pm CEST

      I brought running back in week eight. I ran five times, and four days in a row for the first time since early June, 2024. The numbers:

      • 31.9 miles running

      • 12 hours, 12 minutes all training

      • 5,171 ft D+ running

      Tuesday I did hard running and hiking intervals on Towers road, 5.5 km of 10% grade. 30 minutes at 9/10 effort, my biggest single workout of the season. I'm only a minute slower on the climb than early season runs in 2020 and 2021. That's very encouraging.

      Today I went back to the hills for an easy long run. It felt easy until mile eight, where I boarded the struggle bus for the last two and a half miles. Still, I enjoyed the entire run, saw lots of hikers, and the season's first wildflowers: sand lily, clematis, pasqueflower, and springbeauty.

      https://live.staticflickr.com/65535/54449830919_d5e3c8635a_b.jpg

      Close up of white Sand lily blossoms with a dirt trail and high plains in the background. Lower Timber trail, Lory State Park, Colorado.

      Conditions are very dry in our foothills. The creeks in Well Gulch and below Arthur's Rock often have running water into May, but have none now. It's not a good sign.

    • sur Celebrating 20 Years of Maps Mania

      Posted: 13 April 2025, 5:34pm CEST by Keir Clarke
      It was 20 years ago today Sergeant Pepper taught the band to play when Mike Pegg first started writing about Google Maps. Which means Google Maps Mania is 20 YEARS OLD TODAY! ? Celebrating 20 Years of Maps Mania: A Cartographic JourneyFor twenty years Maps Mania has been tirelessly chronicling the evolving world of interactive maps. Since its inception on Wednesday, April 13, 2005 

    • sur Spinning at a Thousand Miles an Hour

      Posted: 11 April 2025, 10:49am CEST by Keir Clarke
      I'm currently sitting in London, spinning at 640 miles per hour. My friend Sofía lives in Quito, Ecuador, and because of the equatorial speed bonus, she’s currently spinning much faster than me - at 1,037 mph. The Earth rotates once every 24 hours (roughly), and we all rotate with it. The circumference at the equator is about 24,901 miles, so at the equator, you're spinning at about 1,037

    • sur The Most Beautiful Places in the World

      Posted: 10 April 2025, 10:58am CEST by Keir Clarke
      Hollow Rock. Grand Portage, MN by @TuckOlson The Earthporn Map is a simple interactive map that showcases the top 1,000 images submitted to r/EarthPorn. r/EarthPorn is a subreddit on Reddit dedicated to sharing stunning, high-quality images of natural landscapes and scenery from around the world.To be clear—despite the name, there's nothing explicit or NSFW here. Just a whole lot of beautiful

    • sur Sean Gillies: Bear training week 7 recap

      Posted: 10 April 2025, 1:59am CEST

      Poor weather last week complicated my training plans. I ran more than I did in week six, but not much more. I did some indoor intervals, a tempo run, the usual yoga and pool HIIT, my favorite bike loop of Southwest Fort Collins, and a great trail run in the hills of Lory State Park on Saturday. All together, here are the numbers:

      • 24 miles running

      • 9 hours, 32 minutes all training

      • 2,313 ft D+ running

      My body is holding up well, so I'll be doing even more running in week eight. Spoiler alert: I've already had one solid running workout, the hardest of my season so far.

      https://live.staticflickr.com/65535/54442342815_17a2e7eb9f_b.jpg

      A sandy trail along a partially snow-covered ridge approaches a stand of pine trees under a blue sky. Lory State Park, Colorado.

    • 09 April 2025

    • sur Sean Gillies: The Poulletier sandwich

      Posted: 9 April 2025, 5:28pm CEST

      I'm not the first person to make a sandwich with fried eggs and pastrami, but I think I may have come up with a name for it that could stick. Served hot with melted cheddar cheese on slices of grilled sourdough bread, I call it the "Poulletier" after François Poulletier de la Salle, the discoverer of cholesterol.

      https://live.staticflickr.com/65535/54440244418_c0056fcb0e_c.jpg

      A grilled sandwich, cut in two, on a green plate.

      Hash browns would be good in this. As would a thick smear of pesto sauce, suggested by a person in a reply to my Mastodon post. I'll try one or both of these additions next time.

    • sur Mappery: Another Mappy Chair

      Posted: 9 April 2025, 11:00am CEST

      Kevin Carey sent this “A glorious mappy chair at Oldmeldrum House Hotel, Aberdeenshire”

    • sur Mapping the Red Sea Attacks

      Posted: 9 April 2025, 9:44am CEST by Keir Clarke
      The International Crisis Group has released an interactive story map, The Red Sea Attacks Explained, that does a great job of breaking down the background and consequences of the Houthis’ attacks on cargo ships in the Red Sea.The map uses Mapbox's Story Map template to great effect, illustrating the Houthis’ strategic strongholds and their disruptive impact on global trade routes. I

    • sur The First Cuckoo of Spring

      Posted: 8 April 2025, 10:14am CEST by Keir Clarke
      The Cuckoo Tracking Project At the end of March, Hafren (a male adult cuckoo) left the Republic of Côte d'Ivoire to begin his epic migration north to England. From Côte d'Ivoire, Hafren skirted the eastern border of Guinea, crossed south-eastern Mali, motored through Mauritania, and—after a journey of around 1,370 miles—arrived in Western Sahara.By early April, Hafren had reached Mijek in

    • sur GeoServer Team: GeoServer 3 Crowdfunding – Last Call!

      Posted: 8 April 2025, 2:00am CEST

      The GeoServer 3 crowdfunding campaign is now entering its final phase. After months of effort and strong engagement from the geospatial community, we are approaching our collective goal. The campaign has reached over 90% of its target, with only €40,000 remaining. Several organizations are currently engaged in discussions, and we remain confident that we will successfully complete the campaign.

      ? We will officially close the campaign on Monday, April 21, 2025.
      This is the final window of opportunity for organizations that wish to contribute and ensure GeoServer’s continued innovation and reliability.

      Last Call - GeoServer 3 Crowdfunding Campaign

      Why this upgrade is critical

      GeoServer 3 is more than just a version number—it is a significant technical shift that will modernize the platform’s foundations and secure its future. This includes:

      • Migration to Spring 6 and JDK 17: Required to maintain compatibility with modern Java ecosystems, ensure long-term support, and adopt secure, future-proof components.
      • End of support for Spring 5: From January 2025, no more security updates will be provided, making the upgrade essential for compliance and operational security.
      • OAuth2 support and improved security architecture: Crucial for enterprise-grade authentication and integration with modern infrastructure.
      • Switch from JAI to ImageN: A much-needed replacement for image processing, improving speed, maintainability, and compatibility.
      • Alignment with current deployment environments: Including Tomcat 10 and Jakarta EE, ensuring compatibility with containerized and cloud-native environments.

      You can learn more about the technical transition already underway in this behind-the-scenes update.

      What happens if we exceed the goal?

      If the total contributions exceed the financial target, the additional workforce funded through this campaign will be redirected to tasks identified and prioritized by the GeoServer Project Steering Committee (PSC). This ensures the extra support directly benefits the project’s long-term roadmap and the broader user community.

      Acknowledgements and next steps

      We extend our sincere thanks to all who have supported this campaign so far—through funding, code contributions, testing, and outreach. The effort has already mobilized an international team of core contributors who are ready to move forward.

      We now invite all remaining stakeholders to join before the deadline. If your organization uses GeoServer and values its open, sustainable evolution, this is your moment to act.

      ? To pledge or contact the coordination team, please visit:
      [https:]]

      Let’s complete this journey—together.

      The following organisations have pledged their support:

      Individual donations: Abhijit Gujar, Laurent Bourgès, Stefan Overkamp.

    • 07 April 2025

    • sur QGIS Blog: Plugin Update – February to March, 2025

      Posted: 7 April 2025, 5:05pm CEST

      In the last couple of months a total of 57 new plugins were published in the QGIS plugin repository.

      Highlights

      In early February a new web portal for QGIS plugins was launched, in line with the main website overhaul, intending on improving the user experience and with new functionalities as well as detailed information on over two thousand plugins. Congratulations on all involved, and enjoy everyone!

      Overview

      Here follows the quick overview in reverse chronological order. If any of the names or short descriptions catches your attention, you can find the direct link to the plugin page in the table below:

      Space trace
      Draws a spacecraft’s ground trace over the Earth’s surface.
      SpaceMouse3Dconnexion
      Plugin Direct HID support for 3DConnexion SpaceMouse in QGIS 3D views.
      ?HMÚ/CHMI – Meteorological Data Processing
      Weather measurements and spatial interpolation.
      UHI
      Urban Heat Island.
      FPT Plot Allocation
      Plot allocation for forest inventory.
      Cornelis
      Help produce ‘cartographic’ tessellations of the plan, and try to imitate  M.C. Escher.
      Fun Reprojector
      Reproject vector layers by selecting anthropomorphized characters as coordinate systems. Enjoy transforming your layers with a fun and intuitive graphical interface!
      AzimuthTool
      A powerful QGIS plugin for generating vector line layers from azimuths or quadrant bearings and distances, starting from a user-defined point.
      GSM Cover Builder
      GSM Cover Builder allows you to quickly generate coverage plans based on localities and a defined coverage radius.
      Matti
      A plugin to estimate soybean maturity.
      SplashTool Result Loader
      Load and symbolize results from a SplashTool output directory.
      aGrae | Mapeo Integral | Analíticas de Mapeo
      aGrae Mapeo Integral, permite gestionar la informacion de cultivos asociados a la explotacion.
      aGrae | Mapeo Integral | Mapeo de Procesos
      aGrae Mapeo Integral, permite gestionar la informacion de cultivos asociados a la explotacion.
      Change GPKG Path
      QGIS Plugin to change all GPKG datasources inside a GPKG project.
      Layer Group Locator Plugin
      Registers a locator filter that searches for layer groups by name (case insensitive) and jumps to the group in the layer legend.
      Warszawa GIS
      Wtyczka zapewniaj?ca ?atwy dost?p do danych przestrzennych m.st. Warszawy.
      QGIS Track Changes
      This plugin helps track changes in vector layer data, including:
      – Feature modifications
      – Geometry updates
      – Attribute changes
      It ensures data integrity by logging changes efficiently within QGIS.
      Promptly
      This plugin provides an interface to send prompts to various LLM providers (Ollama, OpenAI, OpenRouter, Anthropic, and custom endpoints) and execute the generated Python code in QGIS. Features include: Support for multiple LLM providers, Database schema integration for SQL queries, Layer metadata reference for QGIS operations, Code execution with error handling and fixing, Cross-platform compatibility.
      FloodRiskSwatPlus
      QGIS plugin to assess flood risk impacts in economic terms for SWAT+ scenarios.
      QTempo
      Plugin for accessing data from the TEMPO-Online statistical database of the National Institute of Statistics of Romania.
      NeighborHighlighter
      ?????????????????????
      Geom From Attribute
      This plugin allows users to create geometry using attributes from table.
      PackageInstallerQgis
      Package installer for QGIS plugins.
      AutoSave
      Automatically saves the QGIS project and editable layers at a user-defined interval.
      Stratigraphic Thickness
      Estimates the stratigraphic thickness based on a trigonometric calculation with topographic correction using a DEM.
      Pan Europeo Processing
      gdal calc wrapper for multi utility attribute functions raster calculator.
      grd2stream
      Streamline generation from gridded data.
      Add BIM Data Dictionary Semantics
      Use the buildingSMART Data Dictionary (bSDD) API or similar APIs to classify features and add attributes.
      PlacesSearch
      Fetch places data from Google Maps API and save to Shapefile.
      Crop Site Suitability Analysis
      Equal weighted overlay analysis for crop site suitability mapping.
      MOVE – MobilityDB
      QGIS Plugin to display MobilityDB query results.
      LayoutSelector
      Load and manage QPT layout templates in QGIS.
      Social Tenure Domain Model
      A pro-poor land information tool that offers a complimentary land administration system that is pro-poor, gender-sensitive, affordable and sustainable for the promotion of secure land and property rights for all.
      QGIS Pip Manager
      A QGIS plugin to manage Python packages within the QGIS environment, simplifying the installation, uninstallation, and searching of packages without command-line interaction.
      VectorSelector
      Select a one or multiple fields in a vector file filter columns and create a widget.
      Sig Caceres WMS
      Gestión del SIG de Cáceres. Menú de carga de capas WMS.
      Buscador Sig Caceres
      Buscador SIG de Cáceres. Permite realizar búsquedas por:
      Barrios, calles, caminos, carreteras, toponimia,…
      Minimum Bounding Box
      Create layer with extents (minx,miny, maxx, maxy) and extents geometry.
      Manning’s Roughness Generator
      Plugin to generate high resolution 2D Manning’s roughness coefficients raster from land cover data.
      IdentifProj
      This QGIS plugin is an easy way to guess which map projection has been used for a location. The plugin has 3 use cases :
      – type projected coordinates and get all thez possible points all over the world
      – click on a location on the map and find all the possible projected coordinates
      – draw a bbox and find all the projected bboxes
      IMPORTANT: at the first start, the plugin will build its CRS database from Qgis CRS list. It can last au couple of minutes but it will only happen one time. This plugin has been initially developed during a third year engineering project at ENSG ( [https:]] )
      QMapCompare
      A QGIS plugin that enables you to compare maps smoothly.
      Italy Inspire Cadastre Downloader
      QGIS plugin for downloading cadastral data of cadastrals parcels and cadastral zoning in Italy.
      EconoMe
      Load information from QGIS into your EconoMe project and vice versa. Download the calculated damage and risk results from EconoMe to visualize them in your QGIS project.
      IMPORTANT: You need to have an EconoMe User Account in order to use the plugin!
      MeasureCalculator
      QGIS plugin for calculates area, perimeter, and length for selected features with automatic reprojection for accuracy.
      iNaturalist Extractor
      Extract data from iNaturalist database from an extent.
      3D IO
      Plugin for converting to and from popular 3D data formats.
      Add Legend Labels to Layer Attributes
      Plugin to extract legend labels from the current layer style and assigns them as attribute values to the corresponding features.
      Georondonia
      Tools for the georeferencing of rural properties in Settlement Projects or Land Projects, based on the updated Technical Manual for Georeferencing of Rural Properties from the National Institute of Colonization and Agrarian Reform (INCRA), and for the Rural Environmental Registry (CAR).
      Temporal Resample
      This plugin uses as input a user vector layer that has a temporal field and resamples it to a new time spacing provided by the user.
      tomofast_x_q
      Supports Tomofast-x geophysical inversion code
      geol_qmaps
      The geol_qmaps plugin facilitates legacy field data import, fieldwork preparation and post-fieldwork processing using the geol_qmaps QGIS mapping template developed by the WAXI Team.
      LibreGeoLens
      Experiment with MLLMs to analyze remote sensing imagery.
      Equalyzer – Split Polygons into Equal Areas or Parts
      Splits polygons into equal areas or equal parts easily
      EBVCubeVisualizer
      Visualize biodiversity-related netCDF data within QGIS.
      Gender Enabling Environments Spatial Tool (GEEST)
      Gender Enabling Environments Spatial Tool.
      Topaze
      Add to QGIS capability to compute topographical survey with data fom field recorder.
      GDI
      This plugin is designed to facilitate seamless discovery and access to data available on the GDI platform by leveraging its integrated APIs: the Data Explorer, Authorization Server, and OGC Resource Server.

    • sur Mappery: Petrofuture at the Georgetown Steam Plant

      Posted: 7 April 2025, 11:00am CEST

      Conspiracy of Casrtographers shared this mock-up image of seven Petrofuture maps on display in the boiler room of the Georgetown Steam Plant. For more on Petrofuture have a look at [https:]]

    • sur Oslandia: (Fr) [Replay] Webinaire – La collaboration autour de QGIS

      Posted: 7 April 2025, 9:29am CEST

      Sorry, this entry is only available in French.

    • sur 3D Racing Games

      Posted: 7 April 2025, 9:12am CEST by Keir Clarke
      GLENN is a fun (though very basic) driving game built on a 3D Mapbox map. Essentially, it lets you drive a small 3D car around a map of any location in the world.A lot of the appeal of GLENN comes from being able to explore a 3D version of your own neighborhood. However, there are several other enjoyable features that help keep the game interesting. For example, there are four time-trial

    • sur GeoServer Team: Mastering WFS Transactions in GeoServer

      Posted: 7 April 2025, 2:00am CEST

      GeoSpatial Techno is a startup focused on geospatial information that is providing e-learning courses to enhance the knowledge of geospatial information users, students, and other startups. The main approach of this startup is providing quality, valid specialized training in the field of geospatial information.

      ( YouTube | LinkedIn | Facebook | X )

      Mastering WFS Transactions in GeoServer: A Comprehensive Guide

      In this session, we’ll explore WFS transactions available in GeoServer. If you want to access the complete tutorial, click on the link.

      Introduction

      The Web Feature Service (WFS) transactions in GeoServer, enable users the ability to manipulate geographic data for serving and editing geospatial information over the web. This feature allows for direct editing of spatial features within a dataset through a web browser or application, without needing to download and edit the data locally.

      WFS transactions in GeoServer allow users to dynamically edit spatial data by sending XML requests to insert, update, or delete features. This real-time editing is crucial for applications like online maps and collaborative planning systems. It improves efficiency, data accuracy, and supports real-time collaboration.

      Note. This video was recorded on GeoServer 2.22.4, which is not the most up-to-date version. Currently, versions 2.25.x and 2.26.x are supported. To ensure you have the latest release, please visit this link and avoid using older versions of GeoServer.

      Note. In all examples in this blog post, we utilize the topp:tasmania_roads layer.

      WFS Insert Feature

      The Insert Feature operation, when used with GeoServer’s WFS transaction feature, allows users to append new features to an existing dataset. This ensures the new feature is securely added to the layer, preventing data duplication and errors.

      Note. Backup your data and configuration before making any changes to avoid potential data loss or unexpected behavior.

      Here is an example of how to use the WFS insert feature in GeoServer:

      • Navigate to the Demos page, then click on the Demo requests link.
      • From the Request drop-down list, select WFS_transactionInsert.xml.

      • Enter the new coordinates and road’s type as follows:

        <wfs:Insert>
  <topp:tasmania_roads>
    <topp:the_geom>
      <gml:MultiLineString srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
        <gml:lineStringMember>
          <gml:LineString>
            <gml:coordinates decimal="." cs="," ts=" ">
              145.2,-42.5 145.2,-43.3 145.8,-43.3
            </gml:coordinates>
          </gml:LineString>
        </gml:lineStringMember>
      </gml:MultiLineString>
    </topp:the_geom>
    <topp:TYPE>street</topp:TYPE>
  </topp:tasmania_roads>
</wfs:Insert>
      • Remember that using the WFS transaction in GeoServer requires appropriate permissions and access rights to ensure that only authorized users can modify the data. Enter the username and password to be authorized, and then press the Submit button.
      • GeoServer processes the transaction request. If successful, it adds the new feature to the road layer; if unsuccessful, a relevant error information is displayed and no changes are made to the data.
      • Navigate to the Layer Preview section and open up the OpenLayers preview for the tasmania_roads layer. Your map should now look like this:

      WFS_InsertFeature

      You have successfully used the insert feature with WFS transaction in GeoServer to add a new street to your dataset.

      WFS Update Feature

      The Update feature of the WFS transaction in GeoServer enables users to modify existing features within a geospatial dataset. By submitting a request that specifies both the feature type and the desired changes to attributes and geometry, users can efficiently update specific attributes while altering the shape, location, and size of various features.

      Here are the steps to perform an update feature with WFS transaction in GeoServer:

      • Select WFS_transactionUpdateGeom.xml from the Request drop-down list, then edit the codes as follows:

        <wfs:Update typeName="topp:tasmania_roads">
  <wfs:Property>
    <wfs:Name>the_geom</wfs:Name>
    <wfs:Value>
      <gml:MultiLineString srsName="http://www.opengis.net/gml/srs/epsg.xml#4326">
        <gml:lineStringMember>
          <gml:LineString>
            <gml:coordinates>145.55,-42.7 145.04,-43.04 145.8,-43.4</gml:coordinates>
          </gml:LineString>
        </gml:lineStringMember>
      </gml:MultiLineString>
    </wfs:Value>
  </wfs:Property>
  <ogc:Filter>
    <ogc:FeatureId fid="tasmania_roads.15"/>
  </ogc:Filter>
</wfs:Update>
      • Enter the username and password to be authorized, and then press the Submit button.
      • After the GeoServer has processed the transaction request, go back to the Layer Preview section and open up the OpenLayers preview for the tasmania_roads layer. Your map should now look like this:

      WFS_UpdateFeature

      WFS Delete Feature

      This operation allows users to selectively remove specific features from a dataset by providing their unique identifiers. The process of deleting features can be seamlessly executed through the WFS transaction capabilities in GeoServer.

      This functionality gives users more control over their geospatial database, helping them manage and manipulate data efficiently. As an example, let’s remove the features whose type attribute is equal to road. To do this, follow the steps displayed on the screen:

      • Select WFS_transactionDelete.xml from the Request drop-down list, then edit the codes as follows:

        <wfs:Delete typeName="topp:tasmania_roads">
  <ogc:Filter>
    <ogc:PropertyIsEqualTo>
      <ogc:PropertyName>topp:TYPE</ogc:PropertyName>
      <ogc:Literal>road</ogc:Literal>
    </ogc:PropertyIsEqualTo>
  </ogc:Filter>
</wfs:Delete>
      • Enter the username and password to be authorized, and then press the Submit button.
      • After the GeoServer has processed the transaction request, preview for the tasmania_roads layer. As you can see, the features of type Road have been deleted.

      WFS_DeleteFeature

      Remember that you can define filter conditions to remove the specific features using the WFS Delete transaction. This can include feature IDs, attributes, spatial extent or other criteria.

      • Again, select WFS_transactionDelete.xml from the Request drop-down list, then edit the codes as follows:

        <wfs:Delete typeName="topp:tasmania_roads">
  <ogc:Filter>
    <ogc:FeatureId fid="tasmania_roads.15"/>
  </ogc:Filter>
</wfs:Delete>
      • Enter the username and password to be authorized, and then press the Submit button.
      • After the GeoServer has processed the transaction request, open the OpenLayers preview for the tasmania_roads layer from the Layer Preview section. As you can see, the fid 15 has been deleted.

      In this session, we took a brief journey to explore WFS Transaction to insert update and remove features in GeoServer. If you want to access the complete tutorial, click on the link.

    • 06 April 2025

    • sur Mappery: Manhattan

      Posted: 6 April 2025, 11:00am CEST
      Enclosure: [download]

      My mum sent me this picture for my birthday—her first Map in the Wild.

    • sur Sean Gillies: Bug Club at Hi-Dive, April 1

      Posted: 6 April 2025, 2:33am CEST

      Tuesday, April 1, Ruthie and I, and a couple of friends, drove to Denver to see The Bug Club at the Hi-Dive on South Broadway. The Bug Club have become one of my favorites over the past two years, since I first heard them on a WFMU show. I can't remember if it was Joe Belock's or Todd-o-Phonic Todd's. I was extremely excited to see them, and to see them with Ruthie. We're going to Denver to see music less frequently as we get older, so this was a special occasion. The Breeders at The Ogden in 2018 was our last show in Denver, if I recall correctly.

      The Hi-Dive is a small club with a modest stage and no seating, only an open floor in front of the stage. I don't think there is any backstage, either. Bands enter and leave the stage using steps at the front of the stage. It's unabashedly no-frills and I liked it.

      Ducks Limited were nominally the main act. I've listened to them a little and they're good, if not exactly my cup of tea. The opening act was Denver's own Mainland Break. Like Ducks Ltd., they play a jangly 80's pop, but also channel the Replacements on stage. I enjoyed their short set.

      The effect of putting The Bug Club between these bands was a bit like giving the Minutemen a long set in the middle of an REM show in 1983. They tore through 20 songs in a little over an hour with humor and grace but otherwise no break. Every song from The Intricate Inner Workings of The System, minus Actual Pain and Cold Hard Love (which I love), a new single, and from earlier albums: Marriage, Cheap Linen, Short and Round, It's Art, and Little Coy Space Boy. There were songs I didn't recognize, including one with dueling spiels between Sam and Tilly, that especially reminded me of the Minutemen, what with their physically imposing and proficient producer Tom Rees driving the drumbeat, Sam's buzzed head, and it being D. Boon's birthday. Uncanny!

      https://live.staticflickr.com/65535/54432060882_d093bd7d00_c.jpg

      The Bug Club setting up at Denver's Hi-Dive club.

      I'm looking forward to my next chance to see The Bug Club. They really did put on a satisfying show.

    • 05 April 2025

    • sur TorchGeo: v0.7.0

      Posted: 5 April 2025, 9:46pm CEST
      TorchGeo 0.7.0 Release Notes

      TorchGeo 0.7 adds 26 new pre-trained model weights, 33 new datasets, and more powerful trainers, encompassing 7 months of hard work by 20 contributors from around the world.

      Highlights of this release

      Note

      The following model and dataset descriptions were generated by an imperfect human, not by an LLM. If there are any inaccuracies or anything else you would like to highlight, feel free to reach out to @adamjstewart.

      Growing collection of foundation models

      Panopticon Architecture

      TorchGeo has a growing collection of Earth observation foundation models, including 94 weights from 13 papers:

      • GASSL (@kayush95 et al., 2020): Uses spatially aligned images over time to construct temporal positive pairs and a novel geo-location pretext task. Great if you are working with high-resolution RGB data such as Planet or Maxar.
      • SeCo (@oscmansan et al., 2021): Introduces the idea of seasonal contrast, using spatially aligned images over time to force the model to learn features invariant to seasonal augmentations, invariant to synthetic augmentations, and invariant to both.
      • SSL4EO-S12 (@wangyi111 et al., 2022): A spiritual successor to SeCo, with models for Sentinel-1/2 data pretrained using MoCo, DINO, and MAE (new).
      • Satlas (@favyen2 et al., 2022): A collection of Swin V2 models pretrained on a staggering amount of Sentinel-2 and NAIP data, with support for single-image and multiple-image time series. Sentinel-1 and Landsat models were later released as well.
      • Scale-MAE (@cjrd et al., 2022): The first foundation model to explicitly support RGB images with a wide range of spatial resolutions.
      • SSL4EO-L (@adamjstewart et al., 2023): The first foundation models pretrained on Landsat imagery, including Landsat 4–5 (TM), Landsat 7 (ETM+), and Landsat 8–9 (OLI/TIRS).
      • DeCUR (@wangyi111 et al., 2023): Uses a novel multi-modal SSL strategy to promote learning a common representation while also preserving unique sensor-specific information.
      • FG-MAE (@wangyi111 et al., 2023): (new) A feature-guided MAE model, pretrained to reconstruct features from histograms of gradients (HOG) and normalized difference indices (NDVI, NDWI, NDBI).
      • CROMA (@antofuller et al., 2023): (new) Combines contrastive learning and reconstruction loss to learn rich representations of MSI and SAR data.
      • DOFA (@xiong-zhitong et al., 2024): Introduced the idea of dynamically generating the patch embedding layer of a shared multimodal encoder, allowing a single model weight to support SAR, RGB, MSI, and HSI data. Great for working with multimodal data fusion, flexible channel combinations, or new satellites which don't yet have pretrained models.
      • SoftCon (@wangyi111 et al., 2024): (new) Combines a novel multi-label soft contrastive learning with land cover semantics and cross-domain continual pretraining, allowing the model to integrate knowledge from existing computer vision foundation models like DINO (ResNet) and DINOv2 (ViTs). Great if you need efficient small models for SAR/MSI.
      • Panopticon (@LeWaldm et al., 2025): (new, model architecture pictured above) Extends DINOv2 with cross attention over channels, additional metadata in the patch embeddings, and spectrally-continual pretraining. Great if you want the same features as DOFA but with even better performance, especially on SAR and HSI data, and on “non-standard” sensors.
      • Copernicus-FM (@wangyi111 et al., 2025): (new) Combines the spectral hypernetwork introduced in DOFA with a new language hypernetwork and additional metadata. Great if you want to combine image data with non-spectral data, such as DEMs, LU/LC, and AQ data, and supports variable image dimensions thanks to FlexiViT.
      100+ built-in data loaders!

      Dataset Contributors

      TorchGeo now boasts a whopping 126 built-in data loaders. Shoutout to the following folks who have worked tirelessly to make these datasets more accessible for the ML/EO community: @adamjstewart @nilsleh @isaaccorley @calebrob6 @ashnair1 @wangyi111 @GeorgeHuber @yichiac @iejMac etc. See the above figure for a breakdown of how many datasets each of these people have packaged.

      In order to build the above foundation models, TorchGeo includes an increasing number of large pretraining datasets:

      • BigEarthNet (@gencersumbul et al., 2019): Including BEN v1 and v2 (new), consisting of 590K Sentinel-2 patches with a multi-label classification task.
      • Million-AID (@IenLong et al., 2020): 1M RGB aerial images from Google Earth Engine, including both multi-label and mutli-class classification tasks.
      • SeCo (@oscmansan et al., 2021): 1M images and 70B pixels from Sentinel-2 imagery, with a novel Gaussian sampling technique around urban centers with greater data diversity.
      • SSL4EO-S12 (@wangyi111 et al., 2022): 3M images and 140B pixels from Sentinel-1 GRD, Sentinel-2 TOA, and Sentinel-2 SR. Extends the SeCo sampling strategy to avoid overlapping images. (new) Now with automatic download support and additional metadata.
      • SatlasPretrain (@favyen2 et al., 2022): (new) Over 10M images and 17T pixels from Landsat, NAIP, and Sentinel-1/2 imagery. Also includes 302M supervised labels for 127 categories and 7 label types.
      • HySpecNet-11k (@m.fuchs et al., 2023): (new) 11k hyperspectral images from the EnMAP satellite.
      • SSL4EO-L (@adamjstewart et al., 2023): 5M images and 348B pixels from Landsat 4–5 (TM), Landsat 7 (ETM+), and Landsat 8–9 (OLI/TIRS). Extends the SSL4EO-S12 sampling strategy to avoid nodata pixels, and includes both TOA and SR imagery, composing the largest ever Landsat dataset. (new) Now with additional metadata.
      • SkyScript (@wangzhecheng et al., 2023): (new) 5.2M images from NAIP, orthophotos, Planet SkySat, Sentinel-2, and Landsat 8–9, with corresponding text descriptions for VLM training.
      • MMEarth (@vishalned et al., 2024): (new) 6M image patches and 120B pixels from over 1.2M locations, including Sentinel-1/2, Aster DEM, and ERA5 data. Includes both image-level and pixel-level classification labels.
      • Copernicus-Pretrain (@wangyi111 et al., 2025): (new, pictured below) 19M image patches and 920B pixels from Sentinel-1/2/3/5P and Copernicus GLO-30 DEM data. Extends SSL4EO-S12 for the entire Copernicus family of satellites.

      Copernicus-Pretrain

      We are also expanding our collection of benchmark suites to evaluate these new foundation models on a variety of downstream tasks:

      • SpaceNet (@avanetten et al., 2018): A challenge with 8 (and growing) datasets for instance segmentation tasks in building segmentation and road network mapping, with > 11M building footprints and ~20K km of road labels.
      • Copernicus-Bench (@wangyi111 et al., 2025): (new) A collection of 15 downstream tasks for classification, pixel-wise regression, semantic segmentation, and change detection. Includes Level-1 preprocessing (e.g., cloud detection), Level-2 base applications (e.g., land cover classification), and Level-3 specialized applications (e.g., air quality estimation). Covers Sentinel-1/2/3/5P sensors, and includes the first curated benchmark datasets for Sentinel-3/5P.
      More powerful trainers

      VHR-10 Instance Segmentation

      TorchGeo now includes 10 trainers that make it easy to train models for a wide variety of tasks:

      • Classification: including binary (new), multi-class, and multi-label classification
      • Regression: including image-level and pixel-level regression
      • Semantic segmentation: including binary (new), multi-class, and multi-label (new) semantic segmentation
      • Instance segmentation: (new, example predictions pictured above) for RGB, SAR, MSI, and HSI data
      • Object detection: now with (new) support for SAR, MSI, and HSI data
      • BYOL: Bootstrap Your Own Latent SSL method
      • MoCo: Momentum Contrast, including v1, v2, and v3
      • SimCLR: Simple framework for Contrastive Learning of visual Representations, including v1 and v2
      • I/O Bench: For benchmarking TorchGeo I/O performance

      In particular, instance segmentation was @ariannasole23's course project, so you have her to thank for that. Additionally, trainers now properly denormalize images before plotting, resulting in correct "true color" plots in tensorboard.

      Backwards-incompatible changes

      TorchGeo has graduated from alpha to beta development status (#2578). As a result, major backwards-incompatible changes will coincide with a 1 minor release deprecation before complete removal whenever possible from now on.

      • MultiLabelClassificationTask is deprecated, use ClassificationTask(task='multilabel', num_labels=...) instead (#2219)
      • torchgeo.transforms.AugmentationSequential is deprecated, use kornia.augmentation.AugmentationSequential instead (#1978, #2147, #2396)
      • torchgeo.datamodules.utils.AugPipe was removed (#1978)
      • Many objection detection datasets and tasks changed sample keys to match Kornia (#1978, #2513)
      • Channel dimension was squeezed out of many masks for compatibility with torchmetrics (#2147)
      • dofa_huge_patch16_224 was renamed to dofa_huge_patch14_224 (#2627)
      • SENTINEL1_ALL_* weights are deprecated, use SENTINEL1_GRD_* instead (#2677)
      • ignore parameter was moved to a class attribute in BaseTask (#2317)
      • Removed IDTReeS.plot_las, use matplotlib instead (#2428)
      Dependencies New dependencies Removed dependencies Changes to existing dependencies
      • Python: drop support for Python 3.10 (#2559)
      • Python: add Python 3.13 tests (#2547)
      • Fiona: v1.8.22+ is now required (#2559)
      • H5py: v3.8+ is now required (#2559)
      • Kornia: v0.7.4+ is now required (#2147)
      • Lightning: v2.5.0 is not compatible (#2489)
      • Matplotlib: v3.6+ is now required (#2559)
      • Numpy: v1.23.2+ is now required (#2559)
      • OpenCV: v4.5.5+ is now required (#2559)
      • Pandas: v1.5+ is now required (#2559)
      • Pillow: v9.2+ is now required (#2559)
      • Pyproj: v3.4+ is now required (#2559)
      • Rasterio: v1.3.3+ is now required, v1.4.0–1.4.2 is not compatible (#2442, #2559)
      • Ruff: v0.9+ is now required (#2423, #2512)
      • Scikit-image: v0.20+ is now required (#2559)
      • Scipy: v1.9.2+ is now required (#2559)
      • SMP: v0.3.3+ is now required (#2513)
      • Shapely: v1.8.5+ is now required (#2559)
      • Timm: v0.9.2+ is now required (#2513)
      • Torch: v2+ is now required (#2559)
      • Torchmetrics: v1.2+ is now required (#2513)
      • Torchvision: v0.15.1+ is now required (#2559)
      Datamodules New datamodules Changes to existing datamodules
      • Fix support for large mini-batches in datamodules previously using RandomNCrop (#2682)
      • I/O Bench: fix automatic downloads (#2577)
      Datasets New datasets Changes to existing datasets
      • Many objection detection datasets changed sample keys to match Kornia (#1978, #2513)
      • BioMassters: rehost on HF (#2676)
      • Digital Typhoon: fix MD5 checksum (#2587)
      • ETCI 2021: fix file list when 'vv' in directory name (#2532)
      • EuroCrops: fix handling of Nones in labels (#2499)
      • IDTReeS: removed support for plotting lidar point cloud (#2428)
      • Landsat 7: fix default bands (#2542)
      • ReforesTree: skip images with missing mappings (#2668)
      • ReforesTree: fix image and mask dtype (#2642)
      • SSL4EO-L: add additional metadata (#2535)
      • SSL4EO-S12: add additional metadata (#2533)
      • SSL4EO-S12: add automatic download support (#2616)
      • VHR-10: fix plotting (#2603)
      • ZueriCrop: rehost on HF (#2522)
      Changes to existing base classes
      • GeoDataset: all datasets now support non-square pixel resolutions (#2601, #2701)
      • RasterDataset: assert valid bands (#2555)
      Models New model architectures New model weights Changes to existing models
      • Timm models now support features_only=True (#2659, #2687)
      • DOFA: save hyperparameters as class attributes (#2346)
      • DOFA: fix inconsistent patch size in huge model (#2627)
      Samplers
      • Add ability to set random sampler generator seed (#2309, #2316)
      Trainers New trainers
      • Instance segmentation (#2513)
      Changes to existing trainers
      • All trainers now denormalize images before plotting, resulting in correct "true color" plots in tensorboard (#2560)
      • Classification: add support for binary, multiclass, and multilabel classification (#2219)
      • Classification: MultiLabelClassificationTask is now deprecated (#2219)
      • Object Detection: add support for non-RGB imagery (SAR, MSI, HSI) (#2602)
      • Semantic Segmentation: add support for binary, multiclass, and multilabel semantic segmentation (#2219, #2690)
      Changes to trainer base classes
      • Fix load_from_checkpoint to load a pretrained model (#2317)
      • Ignore ignore when saving hyperparameters (#2317)
      Transforms
      • AugmentationSequential is now deprecated (#2396)
      Documentation Changes to API docs
      • SpaceNet is now properly documented as a benchmark suite
      • Fix license for RESISC45 and VHR-10
      • SatlasPretrain: fix table hyperlink
      Changes to user docs
      • Update list of related libraries (#2691)
      • Add GeoAI to related libraries list (#2675)
      • Add geobench to related libraries list (#2665)
      • Add OTBTF to related libraries list (#2666)
      • Fix file-specific test coverage (#2540)
      New tutorials
      • Earthquake detection (#2647)
      • Custom semantic segmentation trainer (#2588)
      Changes to existing tutorials
      • Customization: fix broken hyperlink (#2549)
      • Trainers: document where checkpoints are saved (#2658)
      • Trainers: document how to get the best model (#2658)
      • Various typo fixes (#2566)
      CI
      • Faster model testing (#2687)
      • Codecov: move configuration file to subdirectory (#2361)
      • Do not cancel in-progress jobs on main branch (#2638)
      • Ignore prettier reformat in git blame (#2299)
      Contributors

      This release is thanks to the following contributors:

      @adamjstewart
      @ando-shah
      @ariannasole23
      @ashnair1
      @burakekim
      @calebrob6
      @DarthReca
      @dcodrut
      @giswqs
      @isaaccorley
      @japanj
      @lccol
      @LeWaldm
      @lns-lns
      @mdchuc
      @nilsleh
      @remicres
      @rijuld
      @sfalkena
      @wangyi111

    • sur Mappery: Another map of Argentina on a cow hide

      Posted: 5 April 2025, 12:00pm CEST

      We had a map like this a while ago but Raf wanted to share the one that he has in his home and I thought – why not?

    • sur The History Quiz Map!

      Posted: 5 April 2025, 9:50am CEST by Keir Clarke
      Journey Through Time: Test Your Knowledge with "1000 Years"!Are you a history buff? Do you love maps? If so, get ready for an exciting adventure through time with 1000 Years! This engaging map-based game challenges your knowledge of world history by asking you to guess the years of significant events.What is "1000 Years"?"1000 Years" is a unique educational game that combines geography and

    • sur The Treasure Hunting Game

      Posted: 4 April 2025, 9:52am CEST by Keir Clarke
      I’ve been having a great time this morning playing Geotreasure, a new game that challenges you to find a hidden location on a map by solving a series of geographic clues. The game is apparently based on the 'Treasure Island' board game, though I haven’t played the original, so I can’t say how closely it follows the source material.Each game takes place in one of three cities (currently Paris,

    • sur GeoServer Team: GeoServer 2.27.0 Release

      Posted: 4 April 2025, 2:00am CEST

      GeoServer 2.27.0 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 2.27.0 is made in conjunction with GeoTools 33.0, GeoWebCache 1.27.0, and ImageIO-EXT 1.4.15.

      This release graduates the OGC API Features module to extension status, ensures all OGC services pass CITE compliance tests, and adds performance improvements to the catalog loader that significantly reduces startup times for large deployments. The release also includes Smart Data Loader override rules. This release addresses several security vulnerabilities, and enforces browser Content Security Policy for increased security.

      Thanks to extensive community testing through our user forum, we’re confident in recommending this release for production use. Check update notes for specific instructions.

      Thanks to Gabriel Roldan (Camptocamp) and Jody Garnett (GeoCat) for making this release and to all contributors who helped with this release cycle.

      Community Testing

      This release cycle featured an extensive community testing effort, with our new discourse communication channels playing a central role in pre-release validation.

      Testers helped identify and resolve several important issues:

      • Performance Improvements: Daniel Calliess verified faster startup times and validated the GeoFence plugin functionality.
      • Security Enhancements: Georg and Roar Brænden provided detailed feedback on the new Content Security Policy (CSP) implementation, helping refine the upgrade instructions.
      • Catalog Robustness: Andrea tested the new parallel catalog loader across various data directory configurations, identifying and helping resolve concurrency edge cases.
      • Documentation: Emanuele Tajariol collaborated with Daniel to update GeoFence plugin documentation.
      • Standards Implementation: Landry Breuil validated the OGC API Features extension on behalf of the geOrchestra community.

      The GeoServer team is grateful to all community members who participated in this testing effort. Their feedback was instrumental in addressing issues before release and ensuring a smooth upgrade experience for users.

      Special thanks to Andrea, Jody, Peter, and Gabriel for their diligent work reviewing feedback and addressing issues throughout the preflight testing period.

      Security Considerations

      This release addresses several security vulnerabilities, and is a recommended upgrade for production systems.

      See project security policy for more information on how security vulnerabilities are managed.

      OGC API FeaturesService Extension

      The OGC API Features module has officially graduated from community status to become a supported GeoServer extension. This implementation of the modern, web-friendly OGC API - Features standard provides a RESTful API alternative to traditional WFS services.

      Key capabilities include:

      • Feature collection discovery and access
      • Spatial and attribute filtering using CQL2
      • Multiple output formats (GeoJSON, HTML, etc.)
      • Service-level operations across multiple collections

      This service operates alongside the existing WFS services:

      1. Update the WFS Settings title and description appropriately.

        OGC API Features Title / Description

      2. This information is used for the service landing page:

        OGC API Features

      3. GeoServer has not previously included draft or work-in-progress development - preferring to make such functionality available as community modules for developers to collaborate. However OGC API - Features specification is defined in a modular fashion, and accommodates the idea of both draft and community standards.

        To configure enable/disable “conformances” for Features, CQL2, and ECQL.

        OGC API Features Title / Description

      4. For more information on OGC API support in GeoServer:

      This graduation is the result of a collaborative code sprint with developers from Camptocamp, GeoSolutions, and GeoCat joining forces. As part of this effort, the module now passes OGC CITE compliance tests, ensuring proper interoperability with other OGC-compliant systems.

      Special thanks to the French “Commissariat général au développement durable du Ministère chargé de l’Ecologie” for sponsoring this work as part of the Collectif Interopérabilité et mise en Commun de Composants Logiciels pour les plateformes de données (CICCLO) project.

      For more information, and the extension user docs.

      OGC CITE Compliance

      A significant effort has been made to ensure GeoServer passes the OGC Conformance and Interoperability Test and Evaluation (CITE) compliance tests across all supported services. This work improves the quality and interoperability of GeoServer with other OGC-compliant systems.

      Restoring CITE Compliance has been a project goal for a number of years, and an ongoing sponsorship goal for the GeoServer project. Many thanks to prior sponsors of this activity including Gaia3D, and OSGeo:UK.

      We are pleased to share that GeoServer now passes all the OGC CITE compliance tests available for the services it supports. Passing OGC CITE tests involved fixing numerous issues related to exception handling, version negotiation, and service behavior.

      Special thanks to Andrea Aime for leveraging, extending, and improving the OGC CITE conformance testing infrastructure that was developed during the OGC API Features work, and methodically applying it to ensure all GeoServer services now pass their respective compliance tests.

      While official certification from the OGC is still pending at the time of writing, the process is underway and we anticipate formal recognition of GeoServer in the coming days.

      Thanks to Peter Smythe (AfriGIS) and Angelos Tzotsos for working with Open Source Geospatial Foundation to provide access to the CITE Certification process. Once certification is granted, we will update this post and home page with a “live logo” to reflect our official status.

      • GEOS-11729 Pass WCS 1.0 certification OGC CITE tests
      • GEOS-11730 Pass WCS 1.1 certification OGC CITE tests
      • GEOS-11780 Pass WCS 2.0 certification OGC CITE tests
      • GEOS-11731 Pass WFS 1.0 certification OGC CITE tests
      • GEOS-11732 Pass WFS 1.1 certification OGC CITE tests
      • GEOS-11733 Pass WFS 2.0 certification OGC CITE tests
      • GEOS-11734 Pass WMS 1.1 certification OGC CITE tests
      • GEOS-11735 Pass WMS 1.3 certification OGC CITE tests
      • GEOS-11779 Pass WMTS 1.0 certification OGC CITE tests
      • GEOS-11736 Pass OGC API Features 1.0 certification OGC CITE tests
      • GEOS-11752 Pass GeoTIFF 1.1 certification OGC CITE tests
      • GEOS-11753 Pass GPKG 1.2 certification OGC CITE tests
      Content Security Policy Enforced

      The use of Content Security Policy (CSP) headers is an additional safety precaution introduced by your browser to mitigate cross-site scripting and clickjacking attacks.

      GeoServer 2.27.0 pages now include a Content Security Policy, limiting expected browser interactions to increase security.

      • Before updating double check your PROXY_BASE_URL setting is correct.

        This is a common mistake blocked by the new CSP policy.

      • It is expected that the web administration console functions correctly, along with extensions and community modules.

        With these improved CSP safety measures GeoServer may now detect vulnerabilities in your environment that were previously undetected.

        If you run into any problems, troubleshooting instructions are available in the user manual.

      • Additional tools are available for administrators seeking greater control.

        OGC API Features

      Thanks to Steve Ikeoka for his dedication to this activity.

      • GSIP 227 Content-Security-Policy Headers
      • GEOS-11346 Add a configurable Content-Security-Policy header
      • GEOS-11698 Update GeoServer User Interface Troubleshooting Guidance
      • GEOS-11585 Patch Spectrum to work with Wicket’s CSP
      • GEOS-11586 Patch CodeMirror to work with Wicket’s CSP
      • GEOS-11669 Patch jscolor to work with Wicket’s CSP
      Faster Catalog Loading

      GeoServer 2.27.0 includes significant performance improvements for server startup with the promotion of the “datadir catalog loader” from a community module to the GeoServer core. This enhanced loader dramatically improves startup times for deployments with large data directories through parallel processing.

      Startup Performance

      The performance gains are substantial, as shown by these benchmark results:

      NFS/10Gbps Storage:

      • 16K layers: reduced from 5.8s to 3.3s (1.8× faster)
      • 100K layers: reduced from 1.9min to 28.3s (4.1× faster)
      • 1M layers: reduced from 21.3min to 5.9min (3.6× faster)

      NVMe Gen5/ZFS Storage:

      • 16K layers: reduced from 3.5s to 1.3s (2.7× faster)
      • 100K layers: reduced from 21.2s to 3.2s (6.5× faster)
      • 1M layers: reduced from 3.4min to 24.6s (8.3× faster)

      The new loader uses work-stealing thread pools for catalog processing while ensuring thread safety. This enhancement is particularly valuable for large enterprise deployments where startup time has been a bottleneck.

      The loader is enabled by default but can be disabled or tuned if needed as explained in the data directory documentation.

      • GSIP-231 Promote data_dir catalog loader to core
      • GEOS-11284 Promote community module “datadir catalog loader” to core
      File System Sandbox Isolation

      A file system sandbox is used to limit access for GeoServer Administrators and Workspace Administrators to specified file folders.

      • A system sandbox is established using GEOSERVER_FILESYSTEM_SANDBOX application property, and applies to the entire application, limiting GeoServer administrators to the <sandbox> folder, and individual workspace administrators into isolated <sandbox>/<workspace> folders.

      • A regular sandbox can be configured from the Security > Data screen, and is used to limit individual workspace administrators into <sandbox>/<workspace> folders to avoid accessing each other’s files.

      Thanks to Andrea (GeoSolutions) for this important improvement at the bequest of Munich RE.

      MapML Enhancement

      The MapML extension continues to receive significant updates.

      Tiled Coordinate Reference Systems can now be managed with a new MapML TCRS Settings page, available in the Admin Console Settings section:

      MapML_tcrs_menu

      The MapML TCRS Settings page provides a selector containing available GridSets. The administrator can select GridSets from the left list that will be converted to TiledCRSs.

      MapML_tcrs_selector

      Check out the documentation for more insights.

      These changes provide better integration and more powerful capabilities for creating web maps with MapML.

      • GEOS-11561 Client-Delegating MapML Proxy
      • GEOS-11577 Rename MapML <layer-> to <map-layer>, rename viewer bundle to mapml.js
      • GEOS-11605 MapML Support custom TCRS projections from existing GridSets
      • GEOS-11666 Update MapML viewer to latest release 0.16.0
      Smart Data Loader Enhancements

      The Smart Data Loader has been improved with override rules, making it more flexible for data management scenarios:

      The Smart Data Loader plugin automates the creation of XSD schemas and App-Schema mapping files, significantly simplifying the configuration of complex feature data in GeoServer.

      With the new override rules capability, you can now customize how database tables are mapped to feature types without modifying the database schema, providing greater control and flexibility when working with complex or legacy data structures.

      Smart_Data_Loader_override_rules

      For more details on using Smart Override Rules, see the official documentation.

      • GEOS-11741 Enhancing Smart Data Loader with Override Rules
      • GEOS-11691 Smart data loader accepts bigint and bigserial but not int8 postgresql type alias
      GeoFence Improvements

      The GeoFence extension has received several significant improvements:

      These improvements make GeoFence more flexible and powerful for implementing fine-grained security policies.

      • GEOS-11702 GeoFence: major libs update
      • GEOS-11704 GeoFence: filter rule list by IP address
      • GEOS-11705 GeoFence: make rules valid within a date range
      • GEOS-11526 GeoFence: slow GeoServer response when there are many roles and layergroups
      Performance Improvements

      Several performance improvements have been implemented in this release:

      • GEOS-11580 Improve embedded GWC meta-tiling performance
      • GEOS-11766 Speed up CRS and store factory lookups during catalog loading
      • GEOS-11722 Coverage view reader partially ignores multithreaded loading
      • GEOS-11739 Excessive memory usage for WMS KML output format
      • GEOS-11760 Fix a potential OOM in the KML transformation
      WPS Improvements

      Several improvements have been made to the Web Processing Service implementations:

      • GEOS-11564 WPS calls to internal WFS will handle requests with version=2.0.0
      • GEOS-11783 Longitudinal profile process now allows for input chaining
      • GEOS-11784 The longitudinal profile process limits the number of points it can extract
      • GEOS-11785 The longitudinal profile process now respects cancellation
      • GEOS-11786 General performance improvements for the longitudinal profile process
      Other Improvements
      • GEOS-11468 Coverage REST API URL Checks
      • GEOS-11562 Default Gzip filter setting in web.xml does not compress application/javascript
      • GEOS-11578 WMTS Multidim extension, allow usage of a sidecar in a separate store
      • GEOS-11603 KML download mode now shows layer titles
      • GEOS-11612 Add system property support for Proxy base URL -> use headers activation
      • GEOS-11613 Increase control-flow logging admin visibility in logs
      • GEOS-11624 Split Geopackage extension into separate modules to reduce dependencies
      • GEOS-11625 Add “Challenge Anonymous Sessions” Option to AuthKey Filter
      • GEOS-11645 Control FreeMarker template access
      • GEOS-11654 Fix multiline strings that are missing a space between the lines
      • GEOS-11677 Hide version info on GWC home page
      Library Updates

      GeoServer 2.27.0 includes updates to many core libraries:

      • GEOS-11770 Update to jai-ext 1.1.31
      • GEOS-11771 Update to Imageio-EXT 1.4.15
      • GEOS-11590 Upgrade log4j to 2.24.1 and slf4j to 2.0.16
      • GEOS-11608 Update Bouncy Castle Crypto package from bcprov-jdk15on:1.69 to bcprov-jdk18on:1.79
      • GEOS-11609 Bump XStream from 1.4.20 to 1.4.21
      • GEOS-11685 Bump jetty.version from 9.4.56.v20240826 to 9.4.57.v20241219
      • GEOS-11631 Update MySQL driver to 9.1.0
      • GEOS-11743 Upgrade Oracle JDBC driver (ojdbc) from 8 to 11
      • GEOS-11754 Update to mapfish-print-v2 2.3.3
      • GEOS-11763 Update jai-ext to latest version (1.1.30)
      Bug Fixes

      Many bugs have been fixed in this release, including:

      • GEOS-4533, GEOS-7967 Fixed WPS demo builder chaining issues
      • GEOS-11494 WFS GetFeature request with a propertyname parameter fails when layer attributes are customized
      • GEOS-11524 CSW: default queryables mapping not generated
      • GEOS-11540 OGC API queryables features call not working in JSON
      • GEOS-11607 KML WMS GetMap is performing a heavy database load query
      • GEOS-11620 Smart Data Loader plugin produces a Mapping file data source definition and tries to establish a connection pool, but fails
      • GEOS-11636 Store panels won’t always show feedback in target panels
      • GEOS-11649 Welcome page per-layer is not respecting global service enablement
      • GEOS-11658 Time editor dumps stack trace in UI if the start or end time values are intervals
      • GEOS-11664 Update REST security paths
      • GEOS-11667 Make WMTS work in strict cite compliance mode
      • GEOS-11668 WMTS home page capabilities link uses 1.1.1 as the version, and the wrong version negotiation approach
      • GEOS-11684 GDAL no longer included in Docker image
      • GEOS-11762 Feature Templates by feature type can not be listed via GeoServer Rest API
      • GEOS-11792 Default Service Capabilities shown on initial start with no workspaces
      • GEOS-11796 Deadlocks During GeoServer Startup When Loading Style Group Layer Groups
      Community Module Updates

      Community modules are shared as source code to encourage collaboration. If a topic being explored is of interest to you, please contact the module developer to offer assistance.

      Community module development:

      • GEOS-11651 Support env parametrization on OIDC filter
      • GEOS-11781 Community cleanup fall 2024
      • Removed abandoned community modules:
        • GEOS-11641 Remove the abandoned community module webservice-test
        • GEOS-11642 Remove the gwc-distributed community module
      Full Release Notes

      For the complete list of changes, see 2.27.0 release notes.

      About GeoServer 2.27 Series

      Additional information on GeoServer 2.27 series:

      Release notes: (2.27.0)

    • sur FOSSGIS e.V. News: FOSSGIS 2025 in Münster mit Sonnenschein und Feuerwerk

      Posted: 4 April 2025, 2:00am CEST

      Die FOSSGIS-Konferenz 2025 hat vom 26.-29. März 2025 erfolgreich in Münster stattgefunden. Die vielen positiven Rückmeldungen der Teilnehmenden bestätigen die Bedeutung der Veranstaltung als führende Konferenz für Freie und Open Source Software für Geoinformationssysteme sowie für die Themen Open Data und OpenStreetMap im D-A-CH-Raum.

      Der FOSSGIS e.V und die OpenStreetMap Community veranstalteten die Konferenz in Kooperation mit dem Institut für Geoinformatik der Universität Münster. Das Schloss Münster als, imposante Kulisse für die FOSSGIS 2025 bekam ein großes Zelt auf den Schlossplatz, um die große Anzahl der Teilnehmenden brandschutzgerecht zu meistern. Dort war ein Großteil der Firmenausstellung sowie die Pausenversorgung und die Posterausstellung verortet.


      FOSSGIS Konferenz 2025 Schloss Münster

      Über 1.000 Interessierte verfolgten die Veranstaltung, dabei waren 750 vor Ort und über 350 Online dabei. Die Veranstaltung war schon Ende Januar ausverkauft.


      FOSSGIS Konferenz 2025 Gruppenfoto

      Programm

      Das vielfältige und hochwertige Programm der drei Konferenztage deckte viele Themen ab und es gab viele Fragen aus dem Publikum sowie anregende Diskussionen.
      Die Konferenz startete mit einer Zeitreise durch das Vereinsleben anlässlich dem 25-jährigen Bestehen des Vereins. Moderiert von Dominik Helle präsentierten sich aktive Vereinsmitglieder mit Ihren Aktivitäten und Ideen in einem kurzweiligen Format mit vielen Infos und Fotos im Beitrag “25. Jahre FOSSGIS e.V. - eine Zeitreise durch das Vereinsleben”.

      Insgesamt wurden 87 Vorträge und 30 Lightning Talks sowie 6 Demosessions angeboten. Die meisten Vorträge wurden aufgezeichnet, die Aufzeichnungen sind im Programm verlinkt. Die 20 Workshops, bei denen Themen praxisnah zum mitmachen vermittelt wurden, sind über 200 mal gebucht worden. OSGeolive kam in vielen Workshops zum Einsatz. In 5 Expert:innenfragestunden wurden im direkten Gespräch Fragen aus und mit dem Publikum beantwortet und diskutiert. Die 14 stattgefundenen Anwender:innentreffen zeigen, dass die FOSSGIS-Konferenz erfolgreich zur Vernetzung der Community beiträgt.

      Die Posteraussstellung kam gut an, auf 19 Postern wurden Arbeiten & Projekte vorgestellt. Von einzelnen Posterbeträgen gibt es Videoaufzeichnungen.

      Die Dialogrunde “25 Jahre FOSSGIS e.V. - was haben wir geschafft und wo wollen wir hin” wurde durch die Arbeitsgruppe “Öffentliche Ausschreibungen mit FOSS” des FOSSGIS e.V. organisiert und von Niklas Alt moderiert. Die Idee über einen Blick in den Rückspiegel, wo kommt der Verein her, verbunden mit dem Blick in die Zukunft, ergab eine spannende Diskussionsrunde.


      FOSSGIS Konferenz 2025 Paneldiskussion mit Andreas Hocevar, Pirmin Kalberer, Klaus Greve, Stefan Sander, Bernhard E. Reiter, moderiert von Niklas Alt

      Wer wissen möchte, was die Koordinierungsstelle des FOSSGIS e.V. macht, erfährt im Beitrag “Ein Blick in die Koordinierungsstelle des FOSSGIS e.V.” von Katja Haferkorn und Jochen Topf einige Einblicke.

      Ein bemerkenswerter Vortrag war der Beitrag “GIS-Schulprojekte in Zusammenarbeit mit kommunalen Gebietskörperschaften”. Die Schüler:innen, ihr Lehrer sowie der Schulleiter hatten die vielleicht weiteste Anreise aus dem deutschsprachigen Raum zur Konferenz auf sich genommen. In Ihrem Vortrag stellten sie ihr Projekt der Zusammenarbeit zwischen Schule und Kommunen vor. Umgesetzt wurde das Projekt mit PostgreSQL und QGiS im Rahmen des jährlichen Vermessungspraktikums eines technischen Gymnsiums in Südtirol. Dieses schöne Beispiel für den Einsatz von FOSSGIS in Schule und Ausbildung will andere Schulen ermutigen, diesem Beispiel zu folgen. Insbesondere das Feedback der Schüler:innen zu ihrem Praxisprojekt zeigt eindringlich den Mehrwert und empfiehlt es zur unbedingten Nachahmung.

      Zum Ausklang der ersten drei Konferenztage lud der FOSSGIS e.V. zum Sektempfang ein.

      Rahmenprogramm

      Das großartige Rahmenprogramm wurde gut angenommen. Es gab Exkursionen durch Münster, am Dienstag in Form eines geographischen Stadtrundgangs, am Freitag stand die Kartensammlung des Landesarchives NRW auf dem Plan und am Samstagnachmittag begaben sich die Teilnehmenden auf einen archäologisch, historischen Stadtrundgang.

      Das Treffen der GeoChicas am Dienstag vor der Konferenz war ein großer Erfolg. Über 20 Frauen waren dabei und kamen schnell ins Gespräch. Auch der inoffizielle Start zeigte wieder, dass viele schon am Vortrag der Konferenz die vernetzung und das Gespräch suchen.


      FOSSGIS Konferenz 2025 Treffen GeoChicas und inoffizeller Start am Vortrag der Konferenz

      Die Abendveranstaltung mit mehr als 500 Teilnehmenden in der Mensa am Aasee war ein kulinarischer und geselliger Höhepunkt der Konferenz.

      Zum Auftakt des OSM Samstag gab es am Freitag ein Treffen im Hier und Jetzt am Ufer des Aasees. Von hier konnte das Feuerwerk am Send wunderbar betrachtet werden.


      FOSSGIS Konferenz 2025 Abschlussfeuerwerk

      Samstag OSM-Samstag

      Der OSM-Samstag, mittlerweile gut gepflegte Tradition, fand als Unconference statt. Circa 50-60 Teilnehmende verteilten sich in den Räumen und diskutierten die eingebrachten Themen. Die Themen und auch die Ergebnisse sind im Wiki dokumentiert.

      Mittags fand eine partielle Sonnenfinsternis statt. Mit unterschliedlichen Werkzeugen wurde das Phänomen beobachtet.

      Community Sprint

      Seit langem fand mal wieder ein Community Sprint nach der FOSSGIS statt, welcher sehr gut angenommen wurde. Fragen wie “Was ist ein Issue”, “Was ist ein Pull requst” wurden geklärt, Python Plugins entwickelt und am deegree-Projekt und anderen Aufgaben gearbeitet.


      OSM-Samstag und Community Sprint 2025

      Dank

      Vielen Dank an Christian Knoth vom Institut für Geoinformatik (IFGI) für den unermüdlichen Einsatz im Vorfeld. Danke an die Universität Münster dafür, dass wir unsere Konferenz im Schloss veranstalten durtfen. Danke an die Stadt Münster für die Unterstützung mit dem Willkommensticket zur ÖPNV-Nutzung. Herzlichen Dank an die Sponsoren der Konferenz.

      Helfer:innen

      In diesem Jahr konnten wir uns über 74 Helfer:innen freuen, die mit Spaß und Elan alle Herausforderungen gemeistert haben.

      FOSSGIS 2025 - Helfer:innen

      FOSSGIS 2026 Göttingen

      Nun heißt es wieder, nach der Konferenz ist vor der Konferenz. Der Veranstaltungsort für 2026 wurde im Abschluss bekannt gegeben. Zum ersten Mal planen wir eine FOSSGIS in Göttingen und freuen uns schon sehr darauf. Wer sich gerne in die Planung einbringen möchte ist herzlich willkommen und meldet sich beim Orgateam.

      Der Verein wächst

      Wir konnten uns während der Konferenz über viele Vereinseintritte freuen. So sind 44 Formulare beim Verein gelandet. Es wird eine Verlosung geben, bei der ein Konferenzticket für das nächste Jahr als Gewinn lockt.

      Was kommt als nächstes?

      Die anstehenden Veranstaltungen:

      Und natürlich freut sich auch der FOSSGIS e.V. über Euer Engagement. Ihr seid herzlich eingeladen, euch zu einer Arbeitsgrupe dazu zu gesellen.

      Es war eine tolle Konferenz. Herzlichen Dank an alle Beteiligten.

      [https:]]

    • 03 April 2025

    • sur Mappery: Helsinki’s Global Church

      Posted: 3 April 2025, 12:00pm CEST

      Jilles van Gurp shared this pic from his visit to Helsinki

    • sur Donald Trump Surrenders the World to China

      Posted: 3 April 2025, 10:33am CEST by Keir Clarke
      The China Index is an interactive map that ranks the expanding influence of the People’s Republic of China (PRC) across the globe. Using 99 distinct indicators - from media sponsorships to academic partnerships - the index tracks Beijing’s deepening reach, updated annually to highlight its accelerating dominance.The map ranks countries around the world based on how much they are under the

    • sur The Future Risk Index Rides Again

      Posted: 2 April 2025, 9:24am CEST by Keir Clarke
      A few weeks ago I published a list of interactive government maps that have been censored and deleted by the Trump administration. Now The Guardian has resurrected one of those maps!Over 200 employees of the US Federal Emergency Management Agency (FEMA) have been fired by the Department of Government Efficiency (DOGE). Those who remain have been ordered to remove all language related to

    • sur Marco Bernasocchi: FOSSGIS 2025 – What a Week!

      Posted: 2 April 2025, 7:53am CEST

      As long time sponsors of FOSSGIS, we stepped up the game this year and became Platinum Sponsors for FOSSGIS 2025. We are proud to be part of a thriving open-source GIS community and to contribute to such a great conference. Here’s a recap of everything we were involved in:

      ? Talks & Presentations

      ? QField: New Strategy and Application Potential
      Berit and Marco presented how QField, with over 1 million downloads and 350,000 active users, is now recognized as Digital Public Good aligned with the UN Sustainable Development Goals. Marco also shared the vision and mission behind QField’s development — highlighting our commitment to empowering field teams across the globe with open, user-friendly tools for data collection.
      Real-world stories illustrated how QField helps bridge data gaps to support informed, sustainable decision-making.
      ? View talk

      ? QField in Practice: Fieldwork Made Easy
      Berit and Michael led an interactive workshop demonstrating how to develop a QField project from scratch. The goal was for each participant to create and sync their own field study project using QFieldCloud, focused on collecting data on flowering plants in the picturesque “Schlussgarten.”
      ? View session

      ? When Web Meets Desktop
      Matthias demonstrated how Django can be used to build consumable geodata layers via OGC API – Features endpoints. His talk covered how to use Python and Django ORM to elegantly define data models and business logic, offering an alternative to complex database logic.
      ? View talk

      ? Extending QFieldCloud – Ideas and Practical Examples
      Michael showed how QFieldCloud can be extended with Django apps, sharing practical implementations such as automated project generation and integration of remote sensing workflows.
      ? View talk

      fossgis25-poster-extending-qfcDownload

      ? QField Plugins – Examples and Possibilities
      In a lightning talk, Michael introduced useful QField plugins, explained how to install and use them, and explored how they can enhance your mobile GIS workflows.
      ? View talk

      ? Hands-on qgis-js: Building Interactive QGIS-Based Web Maps
      In this practical workshop, Michael guided participants through using qgis-js, an exciting new project that brings QGIS functionality directly into the browser.
      ? View session

      ? QGIS AMA Expert Session
      Matthias and Marco hosted a live Q&A session where attendees could ask everything about QGIS development, best practices, organisation and real-world applications.

      ? At the Booth

      Our QField booth was buzzing with activity all week – from plugin demos and project showcases to deep dives into QFieldCloud and field mapping workflows. We had great conversations, received valuable feedback, and met many enthusiastic users.

      ? Supporting Open Source

      We were proud to be Platinum Sponsors of FOSSGIS 2025. Supporting open-source events like this is essential for fostering innovation, collaboration, and community-driven growth in the GIS world.

      ? Looking Ahead

      Thank you to the organisers, speakers, and everyone who joined us in Münster. We left the event full of ideas, motivation, and appreciation for this community – and we’re already looking forward to the next FOSSGIS!

      #QField #QFieldCloud #FOSSGIS2025 #OpenSourceGIS #QGIS #SupportOpenSource

    • 01 April 2025

    • sur WhereGroup: WebAssembly: Revolutioniere WebGIS mit unbegrenztem Potenzial

      Posted: 1 April 2025, 3:08pm CEST
      Martin Alzueta zeigt, welche Möglichkeiten WebAssembly (WASM) bietet, um GIS-Anwendungen performanter, skalierbarer und flexibler zu gestalten.

    • sur Mappery: Exploring our maps in the wild

      Posted: 1 April 2025, 12:45pm CEST
      Enclosure: [download]

      There are now nearly 3,000 Maps in the Wild on Mappery. If you are new to the site that may be a little overwhelming to find your way around our back catalogue (the editors speak English not American btw), but htere is a great way to browse our collection using a map of course! Who knew that a map was a great way to organise a massive collection of data? Go on, enjoy a few maps in the wild on our Mapping Maps in the Wild page, there’s enough there to keep you occupied for a few hours/days/weeks!

      This Map in the Wild appeared a year or so ago, it still makes me smile and I wonder whether it is a real tatoo disaster or an April Fool’s joke

    • sur Mappery: When a geographer flies ?

      Posted: 1 April 2025, 12:00pm CEST
      Enclosure: [download]

      Originally posted by Matthew Malone, saying, “As a geographer, how I told my son the ground would look during his first flight.”

    • sur Mappery: South Amerfrica

      Posted: 1 April 2025, 11:00am CEST

      Matt Malone spotted this, he said “Babe…wake up, the new South Amerfrica globe just dropped!”

      I though this could be a fun game on April Fools Day, sometimes known as Trump This Day. Loads of possibilities open up – Amerada, Ameriland, Ameranama, Amerikraine, Russikraine and so on. Post your global mix ups in the comments.

    • sur New Tesla Hack Map

      Posted: 1 April 2025, 9:16am CEST by Keir Clarke
      Last week, Tesla owners were shocked when hackers released an interactive map revealing personal details - including their home addresses. Now, a new tracking tool appears to display the real-time locations of all Tesla Cybertrucks on the road. The Cybertruck Live Tracking Map claims to show the live positions of Tesla’s vehicles worldwide. Tesla cars are equipped with GPS and cellular

    • sur Free TV & Radio Maps

      Posted: 31 March 2025, 9:46am CEST by Keir Clarke
      tvgarden is an interactive map that brings the world of live television to your fingertips. Inspired by the long running success of Radio Garden (which allows users to explore global radio stations through an interactive 3D map,) tvgarden applies the same concept to television, offering a seamless and engaging way to watch live TV from around the world.Features and User ExperienceOne of
    • 30 March 2025

    • sur Sean Gillies: Bear training week 6 recap

      Posted: 30 March 2025, 11:18pm CEST

      A productive week six is done!

      • 22.8 miles running

      • 11 hours, 39 minutes all training

      • 2,277 ft D+

      That's not a lot of running, but it's the most I've done in a week since last July. I did two hill workouts outside on a 10% grade stretch of single track above Pineridge open space, Tuesday and Thursday. Today, Sunday, I did an easy long run from my house to the same dirt climb, and went up to the bench one time. My left Achilles, which has been nagging me, feels better. Weather permitting, I'll run 3-4 days next week, and increase my mileage to 25-26.

    • sur Federal Funding & Jobs Slashed

      Posted: 30 March 2025, 2:47pm CEST by Keir Clarke
      The White House has mandated deep cuts to federal funding for scientific research, threatening breakthroughs that save lives and fuel economic growth. The National Institutes of Health (NIH) - a cornerstone of medical progress - supports critical research on cancer, diabetes, dementia, heart disease, stroke, mental illness, and other pressing health challenges. These devastating cuts include a

    • sur Mappery: A box of wine

      Posted: 30 March 2025, 12:00pm CEST

      Raf shared this – cardboard cube containing 3 litres of Dolmens wine from wine making region Empordà in Catalunya by Celler Cooperatiu d’Espolla.

      The title to this post is a little homage to “Box of Rain” by Phil Lesh of the Grateful Dead who passed a few months ago (a bit off track I know, but hey!)

    • 29 March 2025

    • sur Free and Open Source GIS Ramblings: The quest for a fair TimeGPT benchmark

      Posted: 29 March 2025, 10:38pm CET

      At the end of yesterday’s TimeGPT for mobility post, we concluded that TimeGPT’s trainingset probably included a copy of the popular BikeNYC timeseries dataset and that, therefore, we were not looking at a fair comparison.

      Naturally, it’s hard to find mobility timeseries datasets online that can be publicized but haven’t been widely disseminated and therefore may have slipped past the scrapers of foundation models builders.

      So I scoured the Austrian open government data portal and came up with a bike-share dataset from Vienna.

      Dataset

      SharedMobility.ai dataset published by Philipp Naderer-Puiu, covering 2019-05-05 to 2019-12-31.

      Here are eight of the 120 stations in the dataset. I’ve resampled the number of available bicycles to the maximum hourly value and made a cutoff mid August (before a larger data collection cap and the less busy autumn and winter seasons):

      Models

      To benchmark TimeGPT, I computed different baseline predictions. I used statsforecast’s HistoricAverage, SeasonalNaive, and AutoARIMA models and computed predictions for horizons of 1 hour, 12 hours, and 24 hours.

      Here are examples of the 12-hour predictions:

      We can see how Historic Average is pretty much a straight line of the average past value. A little more sophisticated, SeasonalNaive assumes that the future will be a repeat of the past (i.e. the previous day), which results in the shifted curve we can see in the above examples. Finally, there’s AutoARIMA which seems to do a better job than the first two models but also takes much longer to compute.

      For comparison, here’s TimeGPT with 12 hours horizon:

      You can find the full code in [https:]]

      Results

      In the following table, you’ll find the best model highlighted in bold. Unsurprisingly, this best model is for the 1 hour horizon. The best models for 12 and 24 hours are marked in italics.

      ModelHorizonRMSE
      HistoricAverage17.0229
      HistoricAverage127.0195
      HistoricAverage247.0426
      SeasonalNaive17.8703
      SeasonalNaive127.7317
      SeasonalNaive247.8703
      AutoARIMA12.2639
      AutoARIMA125.1505
      AutoARIMA246.3881
      TimeGPT12.3193
      TimeGPT124.8383
      TimeGPT245.6671

      AutoARIMA and TimeGPT are pretty closely tied. Interestingly, the SeasonalNaive model performs even worse than the very simple HistoricAverage, which is an indication of the irregular nature of the observed phenomenon (probably caused by irregular restocking of stations, depending on the system operator’s decisions).

      Conclusion & next steps

      Overall, TimeGPT struggles much more with the longer horizons than in the previous BikeNYC experiment. The error more than doubled between the 1 hour and 12 hours prediction. TimeGPT’s prediction quality barely out-competes AutoARIMA’s for 12 and 24 hours.

      I’m tempted to test AutoARIMA for the BikeNYC dataset to further complete this picture.

      Of course, the SharedMobility.ai dataset has been online for a while, so I cannot be completely sure that we now have a fair comparison. For that, we would need a completely new / previously unpublished dataset.

    • sur Mappery: Ticket to Ride

      Posted: 29 March 2025, 11:00am CET

      Barry shared this, he said “Ticket to Ride UK+Ireland game map. With enough resources you can even run a transatlantic boat service…”

    • sur The Nationwide Sakura Map

      Posted: 29 March 2025, 10:14am CET by Keir Clarke
      Every spring, Japan transforms into a breathtaking canvas of pink and white as cherry blossoms, or sakura (?), bloom across the country. This fleeting yet spectacular display is deeply ingrained in Japanese culture, symbolizing renewal, beauty, and the impermanence of life. People gather under the blossoms for hanami (flower viewing), a cherished tradition that brings friends and families

    • sur Ecodiv.earth: Fix references in space-time dataset after renaming a mapset

      Posted: 29 March 2025, 12:00am CET
      The problem

      GRASS GIS offers powerful tools for working with temporal data. You can create space-time raster or vector datasets, and register these in a temporal database that’s automatically managed by GRASS. A key feature of this temporal framework is that the temporal database is mapset-specific. So, space-time datasets and registered time series maps in a mapset are stored in a temporal database inside the same mapset.

      The way GRASS handles spatial data is intuitive and powerful. Yet, I ran into a problem after I renamed a mapset. As it turns out, the mapset name is integral part of how temporal data sets and data layers are registered in the temporal database. And changing the mapset name doesn’t automatically update those references. So renaming the mapset rendered my space-time datasets inaccessible. As far as I could tell, there’s no built-in mechanism in GRASS to resolve this.

      A possible solution

      By default, GRASS stores the temporal database as a SQLite3 file located in the tgis folder inside the mapset. This means that, in principle, you could manually open that database and replace all references to the old mapset name with the new mapset name.

      Caution

      It is generally not advisable to make any manual changes to a GRASS database. Only do this when you are really sure what you are doing, and always make a backup first.

      Still, I decided to give it a go. Rather than modifying the SQLite database directly, I opted for a safer approach. I dumped the contents of the database to a text file, made the changes there, and then restored the database from the modified dump.

      First step, obviously, is to make a backup of the SQLite file. Next, I exported the entire SQLite database using the .dump command. This creates a text-based SQL script of the database.

      > cd path_to_the_temporal_db/sqlite.db
> cp path_to_the_temporal_db/sqlite.db backup-location/sqlite_backup.db
> sqlite3 sqlite.db
> .output temp_dump.sqlite
> .dump
> .exit

      I then opened the temp_dump.sql file in a text editor and used a simple search-and-replace to update all occurrences of the old mapset name to the new one. Finally, I recreate the SQLite database using the .restore function with the updated temp_dump.sql file as input.

      > cd path_to_the_temporal_db/sqlite.db
> sqlite sqlite.db
> .read temp_dump.sqlite
> .exit

      The result, all the space-time data sets are available again from within GRASS :-).

      Wrapping it up

      To make this repeatable (and reduce the chance of messing up manual steps), I wrapped the process in a simple Python script. The script backs up the database, dumps its contents, performs the replacement, and restores the modified version. You can optionally specify a backup location, but if you don’t, it will create the backup in the same folder.

      import sqlite3
import subprocess
import os
import shutil


def replace_string_in_qlite(input_db, old_string, new_string, backup_name=None):
    # Step 1: Define backup path
    if not backup_name:
        backup_name = input_db + ".backup"

    # Step 2: Create backup
    if os.path.exists(backup_name):
        raise FileExistsError(
            f"Backup file '{backup_name}' already exists. Aborting to prevent overwrite."
        )

    shutil.move(input_db, backup_name)
    print(f"Original database backed up to: {backup_name}")

    # Step 3: Dump the SQL from backup DB
    dump_file = "temp_dump.sql"
    with open(dump_file, "w", encoding="utf-8") as f:
        subprocess.run(["sqlite3", backup_name, ".dump"], stdout=f)

    # Step 4: Read, modify, and write the dump
    with open(dump_file, "r", encoding="utf-8") as f:
        sql_content = f.read()

    modified_sql = sql_content.replace(old_string, new_string)

    with open(dump_file, "w", encoding="utf-8") as f:
        f.write(modified_sql)

    # Step 5: Restore the modified dump to the original filename
    with open(dump_file, "r", encoding="utf-8") as f:
        conn = sqlite3.connect(input_db)
        cursor = conn.cursor()
        cursor.executescript(f.read())
        conn.commit()
        conn.close()

    os.remove(dump_file)
    print(
        f"Replaced '{old_string}' with '{new_string}' and saved new DB as: {input_db}"
    )

      As an example, suppose I have a GRASS database with a project called Climate, and inside it, a mapset named Bioclim. After renaming the mapset to bioclim_variables, the space-time datasets become inaccessible. Running the script solves that:

      db2replace = "/home/paulo/GRASSdb/Climate/tgis/sqlite.db"
db2backup = "/home/paulo/Desktop/sqlite_backup.db"
replace_string_in_qlite(db2replace, "Bioclim", "bioclim_variables")

      Crisis averted, and, as a bonus, this little exercise has given me a little bit better understanding of how GRASS handles spatial and temporal data under the hood.

      That said, as mentioned earlier, directly modifying the GRASS database is generally discouraged. So, as a disclaimer, this post is mostly a note to my future self. You’re welcome to use it, but do so at your own risk! And, if you know a better way, or if I overlooked a standard way to deal with this in GRASS, please let me know.

    • 28 March 2025

    • sur Free and Open Source GIS Ramblings: TimeGPT for mobility: Can foundation models outperform classic machine learning models for mobility predictions?

      Posted: 28 March 2025, 11:59pm CET

      tldr; Maybe. Preliminary results certainly are impressive.

      Introduction

      Crowd and flow predictions have been very popular topics in mobility data science. Traditional forecasting methods rely on classic machine learning models like ARIMA, later followed by deep learning approaches such as ST-ResNet.

      More recently, foundation models for timeseries forecasting, such as TimeGPT, Chronos, and LagLlama have been introduced. A key advantage of these models is their ability to generate zero-shot predictions — meaning that they can be applied directly to new tasks without requiring retraining for each scenario.

      In this post, I want to compare TimeGPT’s performance against traditional approaches for predicting city-wide crowd flows.

      Experiment setup

      The experiment builds on the paper “Deep Spatio-Temporal Residual Networks for Citywide Crowd Flows Prediction” by Zhang et al. (2017). The original repo referenced on the homepage does not exist anymore. Therefore, I forked: [https:]] as a starting point.

      The goals of this experiment are to:

      1. Get an impression how TimeGPT predicts mobility timeseries.
      2. Compare TimeGPT to classic machine learning (ML) and deep learning (DL) models.
      3. Understand how different forecasting horizons impact predictive accuracy.

      The paper presents results for two datasets (TaxiBJ and BikeNYC). The following experiment only covers BikeNYC.

      You can find the full notebook at [https:]]

      First attempt

      In the first version, I applied TimeGPT’s historical forecast function to generate flow predictions. However, there was an issue: the built-in historic forecast function ignores the horizon parameter, thus making it impossible to control the horizon and make a fair comparison.

      Refinements

      In the second version, I therefore added backtesting with customizable forecast horizon to evaluate TimeGPT’s forecasts over multiple time windows.

      To reproduce the original experiments as truthfully as possible, both inflows and outflows were included in the experiments.

      I ran TimeGPT for different forecasting horizons: 1 hour, 12 hours, and 24 hours. (In the original paper (Zhang et al. 2017), only one-step-ahead (1 hour) forecasting is performed but it is interesting to explore the effects of the additional challenge resulting from longer forecast horizons.) Here’s an example of the 24-hour forecast:

      The predictions pick up on the overall daily patterns but the peaks are certainly hit-and-miss.

      For comparison, here are some results for the easier 1-hour forecast:

      Not bad. Let’s run the numbers! (And by that I mean: let’s measure the error.)

      Results 

      The original paper provides results (RMSE, i.e. smaller is better) for multiple traditional ML models and DL models. Addition our experiments to these results, we get:

      ModelRMSE
      ARIMA10.56
      SARIMA10.07
      VAR9.92
      DeepST-C8.39
      DeepST-CP7.64
      DeepST-CPT7.56
      DeepST-CPTM7.43
      ST-ResNet6.33
      TimeGPT (horizon=1)5.70
      TimeGPT (horizon=12)7.62
      TimeGPT (horizon=24)8.93
      Key takeaways
      • TimeGPT with a 1 hour horizon outperforms all ML and DL models.
      • For longer horizons, TimeGPT’s accuracy declines but remains competitive with DL approaches.
      • TimeGPT’s pre-trained nature made means that we can immediately make predictions without any prior training. 
      Conclusion & next steps

      These preliminary results suggest that timeseries foundation models, such as TimeGPT, are a promising tool. However, a key limitation of the presented experiment remains: since BikeNYC data has been public for a long time, it is well possible that TimeGPT has seen this dataset during its training. This raises questions about how well it generalizes to truly unseen datasets. To address this, the logical next step would be to test TimeGPT and other foundation models on an entirely new dataset to better evaluate its robustness.

      We also know that DL model performance can be improved by providing more training data. It is therefore reasonable to assume that specialized DL models will outperform foundation models once they are trained with enough data. But in the absence of large-enough training datasets, foundation models can be an option.

      In recent literature, we also find more specific foundation models for spatiotemporal prediction, such as UrbanGPT  [https:]] , UniST [https:]] , and UrbanDiT [https:]] . However, as far as I can tell, none of them have published the model weights.

      If you want to join forces, e.g. add more datasets or test other timeseries foundation models, don’t hesitate to reach out.

    • sur Mappery: Calling from Rathlin Island

      Posted: 28 March 2025, 11:00am CET

      Manny Ownoh shared this pic of a telephone street cabinet covered in a stylised map of Rathlin Island, Co Antrim.

    • sur The 2025 Australian Election Map

      Posted: 28 March 2025, 10:28am CET by Keir Clarke
      Yesterday, the Prime Minister of Australia, Anthony Albanese, announced that the next Australian federal election will be held on May 3. The leader of the center-left Labor Party currently holds a very slim majority in Parliament. To achieve a majority government in the next Parliament, a party must win at least 76 seats out of 150 in the House of Representatives. If no party reaches this

    • sur How Deep was That Earthquake?

      Posted: 27 March 2025, 10:09am CET by Keir Clarke
      A few years ago, ESRI's Raluca Nicola created a stunning 3D visualization titled Earthquakes with Exaggerated Depth, illustrating how far below the surface earthquake ruptures (hypocenters) occur. Her interactive globe visualizes one year's worth of earthquake activity worldwide (from July 2017 to July 2018).The map was created using data from the USGS. On the 3D interactive globe, each
    • 26 March 2025

    • sur Mappery: Terraseca

      Posted: 26 March 2025, 11:00am CET

      It never ceases to make me smile at how many bottles of wine or beeer end up here as maps in the wild. This ones comes via our friend Raf in Barcelona.

      “Terra Seca is a red wine from Terra del Priorat cellar, made with garnatxa negra and carinyena, in a bottle dressed with contour lines”

    • sur Make Your Own Scrambled Maps

      Posted: 26 March 2025, 9:46am CET by Keir Clarke
      Introducing:Scrambled Maps StudioScrambled Maps ChallengeAre You Ready to Create Your Own Scrambled Maps Games?Scrambled Maps is probably my all-time favorite map game. I may be a little biased - since I wrote the original game - but TripGeo has taken my small creation and transformed it from a fun little puzzle into an amazing global challenge.Today, Scrambled Maps has become even

    • sur The Fentanyl Supply Chain

      Posted: 25 March 2025, 10:14am CET by Keir Clarke
      In How a New Drug Trafficking Landscape Fuels Violence in Latin America, the International Crisis Group (ICG) maps the supply chains transporting cocaine and fentanyl from Latin America to consumers in Europe and North America. The map reveals how decades of failed prohibitionist policies, shifting demand, and increasingly fragmented criminal networks have transformed drug trafficking into
    • 24 March 2025

    • sur The Russian Sabotage Map

      Posted: 24 March 2025, 10:28am CET by Keir Clarke
      During 2024, a number of undersea cables around Europe were sabotaged by Russia. These attacks were only a small part of a larger Russian campaign to disrupt European democracy and undermine its support for Ukraine. Alongside the destruction of undersea cables, Russia has been involved in cyberattacks, social media misinformation, attempted murders, arson, sabotage, and coordinated espionage
    • 22 March 2025

    • sur Exploring the Amazon

      Posted: 22 March 2025, 9:39am CET by Keir Clarke
      National Geographic's Into the Amazon takes you on an impressive virtual tour of one of the world's most breathtaking and ecologically vital regions. From its source high in the Andes, the Amazon River carves its way through dense rainforests, winding past diverse ecosystems teeming with life, before finally reaching the Atlantic Ocean. For two years, 16 scientists journeyed along the
    • 21 March 2025

    • sur How to Learn the Countries of the World

      Posted: 21 March 2025, 10:08am CET by Keir Clarke
      Learn the World Map is a fun online game which requires you to identify countries on an interactive map - and which helps you to learn while you play.How to PlayLearn the World Map is simple to play. You are given a series of country names and must correctly identify their locations on a world map. If you get a country wrong, the game shows you its correct location and asks you to try again.To
    • 20 March 2025

    • sur Billboard Ads on Maps

      Posted: 20 March 2025, 9:36am CET by Keir Clarke
      Sofia Cannale has been experimenting with displaying virtual billboards on top of an interactive map. In their latest digital advertising campaign for LUXE EVERYWHERE they have added a number of advertising billboards to a Google/Cesium 3D map.The Luxe Everywhere map features seven virtual advertisements, featuring different models wearing Sofia Cannale sunglasses, all displayed along the
    • 19 March 2025

    • sur State of the Global Climate 2024

      Posted: 19 March 2025, 10:15am CET by Keir Clarke
      MET Office visualization of near surface temperatures since 1970 2024's Climate in CrisisThe World Meteorological Organization's (WMO) annual flagship report was published yesterday, and it makes for deeply concerning reading. Each year, the WMO releases its State of the Global Climate Report, providing an authoritative scientific summary of global climate trends and extreme weather events.The&
    • 18 March 2025

    • sur Open Access, Open Source: OpenTimes

      Posted: 18 March 2025, 9:47am CET by Keir Clarke
      OpenTimes is an interactive travel-time map of the United States. Click on any location, and instantly view an isochrone map that shows how far you can travel from that spot within different time frames and via various modes of transport.But OpenTimes is more than just an interactive isochrone map. It’s also an open-source platform offering free, pre-computed travel times between United
    • 17 March 2025

    • sur The Invasion of America

      Posted: 17 March 2025, 11:07am CET by Keir Clarke
      In recent years, the United States has been overrun by the twin menaces of illegal extraterrestrial aliens and hairy Sasquatches. This is the reality that the American public now faces - an invasion of little green men and ape-like creatures who show no regard for borders or the American way of life.The BFRO Bigfoot Sightings Interactive Map reveals that no part of the United States
    • 15 March 2025

    • sur Air Tours of the World

      Posted: 15 March 2025, 9:23am CET by Keir Clarke
      TripGeo's new Air Tours app is an engaging and immersive way to virtually explore cities around the world. This interactive web application combines Google Maps' 3D imagery, Street View, and aerial perspectives to provide you with four different perspectives of some of the world's most iconic locations. Whether you're a travel enthusiast, an urban explorer, or simply someone looking to get a new
    • 14 March 2025

    • sur A Bird's Eye View into the Past

      Posted: 14 March 2025, 9:46am CET by Keir Clarke
      Glasgow In the 1860s, The Illustrated London News published a series of bird’s-eye panoramic maps of famous cities. These maps were created by architectural draftsman Thomas Sulman with the help of engraver Robert Loudan. Legend has it that Sulman used hot air balloons to capture his aerial perspectives of these prominent urban centers.The Glasgow City Heritage Trust has created an impressive

    • sur The Future of Urban Mobility

      Posted: 13 March 2025, 10:17am CET by Keir Clarke
      This impressive animated data visualization shows the average levels of traffic on Dubai roads over the course of one day. It is one of a series of mapped visualizations in Moving forward: What drives the future of urban transport, a data-driven exploration of urban mobility in Dubai. Dubai city has one of the highest car ownership rates in the world, with one vehicle for every two residents,

    • sur Switzerland’s Landscape - Reimagined

      Posted: 12 March 2025, 10:25am CET by Keir Clarke
      Switzerland in 2075 will look very different from today. The effects of global heating will transform the landscape, resulting in melting glaciers and raising snow lines on the country's mountains. With less snowmelt, river water levels will drop, making some rivers unnavigable. In agriculture, staple crops will need to be replaced with more heat-resistant varieties. As a result, Switzerland’s
    • 11 March 2025

    • sur ViewPoint 3000

      Posted: 11 March 2025, 11:13am CET by Keir Clarke
      UpToWhere allows you to discover what you can see from any position on Earth. You can think of it as a 3D version of HeyWhatsThat. For the past 15 years, HeyWhatsThat has provided panoramic sketches and the names of visible peaks for nearly any location in the world. Simply click on any spot in HeyWhatsThat, and it generates a diagram of your viewpoint, marking all visible

    • sur Mappery: Nairobi International Airport

      Posted: 11 March 2025, 11:00am CET

      Another African Map in the Wild from Ragnvald. This time, it was the Simba Lounge at the Nairobi International Airport.

    • sur Sean Gillies: Bear training week 3 recap

      Posted: 11 March 2025, 3:46am CET

      I just noticed that the original URL slug for last week's recap blog post was "beer-training-weeks-1-2-recap.html". "Beer" instead of "bear". I'm fixing that now. I'd be down for a beer mile, but not a beer 100 miler.

      In week 3, I got two interval workouts in, but developed a knot in my left calf and some Achilles tenderness. I ran twice, and did long bike rides instead of long runs. They were quality rides, though, and so I still got a good mix of intensity and long easy effort.

      • 11.3 miles running

      • 11 hours, 50 minutes all training

      • 476 ft D+ running

      The highlight of my week was a long Sunday ride on the Poudre River Trail east of Fort Collins, stopping by a taco truck and tap room, and ending up at Hoedown Hill, which might be Colorado's easternmost ski hill. It's a bar and restaurant on top of a 200-foot tall butte, with a north-facing slope beneath.

      https://live.staticflickr.com/65535/54378170092_6341696cef_c.jpg

      A blue bike parked in soft snow next to orange inner tubes at the bottom of a small ski hill.

    • 10 March 2025

    • sur Free and Open Source GIS Ramblings: Analyzing GTFS Realtime Data for Public Transport Insights

      Posted: 10 March 2025, 11:39am CET

      In today’s post, we (that is, Gaspard Merten from Universite Libre de Bruxelles and yours truly) are going to dive deep into how to analyze public transport data, using both schedule and real time information. This collaboration has been made possible by the EMERALDS project.

      Previously, I already shared news about GTFS algorithms for Trajectools that add GTFS preprocessing tools (incl. Route, segment, and stop layer extraction) to the QGIS Processing toolbox. 

      Today, we’ll discuss the aspect of handling realtime GTFS data and how we approach analytics that combine both data sources.

      About Realtime GTFS 

      Many of us have come to rely on real-time public transport updates in apps like Google Maps. These apps are powered by standardized data formats that ensure different systems can communicate. Google first introduced GTFS in 2005, a format designed to organize transit schedules, stop locations, and other static transit information. Then, in 2011, they introduced GTFS Realtime (GTFS-RT), which added the capability to include live updates on vehicle positions, delays, speeds, and much more.

      However, as the name suggests, GTFS Realtime is all about live data. This means that while GTFS-RT APIs are useful for providing real-time insights,  they don’t hold historical data for analytics. Moreover, most transit agencies don’t keep past GTFS-RT records, and even fewer make them available to the public. This can be a significant challenge for anyone looking to analyze past trends and extract valuable insights from the data. For this reason, we had to implement our own solution to efficiently archive GTFS-RT files while making sure the files could be queried easily.

      There are two main challenges in the implementation of such a solution:

      • Data Volume: While individual GTFS-RT files are relatively small—typically ranging from 50KB to 500KB depending on the public transport network size—the challenge lies in ingestion frequency. With an average file size of 100KB and updates every 5 seconds, a full day’s worth of data quickly scales up to 1.728GB.
      • Data Usability: GTFS-RT is a deeply nested format based on Protobuf, making direct conversion into a more accessible structure like a DataFrame difficult. Efficiently unnesting the data without losing critical details would significantly improve usability and streamline analysis.
      Parquet to the Rescue

      Storing and analyzing real-time transit data efficiently isn’t just about saving space—it’s about making the data easy to work with. Luckily, modern data formats have come a long way, allowing us to store massive amounts of data while keeping retrieval and analytics processing fast. One of the best tools for the job is Apache Parquet, a columnar storage format originally designed for Hadoop but now widely adopted in data science. With built-in support in libraries like Polars and Pandas, it’s become a go-to choice for handling large datasets efficiently. Moreover, Parquet can be converted to GeoParquet for smoother integration with GIS such as GeoPandas.

      What makes Parquet particularly well-suited for GTFS Realtime data is the way it compresses columnar data. It leverages multiple compression algorithms and encodings, significantly reducing file sizes while keeping access speeds high. However, to get the most out of Parquet’s compression, we need to be smart about how we structure our data. Simply converting each GTFS-RT file into its own Parquet file might give us around 60% compression, which is decent. But if we group all GTFS-RT records for an entire hour into a single file, we can push that number up to 95%. The reason? A lot of transit data—like trip IDs and stop locations—doesn’t change much within an hour, while other values, such as coordinates, often share common elements. By organizing data in larger batches, we allow Parquet’s compression algorithms to work their magic, drastically reducing storage needs. And with a smaller disk footprint, retrieval is faster, making the entire analytics pipeline more efficient.

      One more challenge to tackle is the structure of the data itself. GTFS-RT files tend to be highly nested, which isn’t an issue for Parquet but can be problematic for most data science tools. While Parquet technically supports nested structures, many analytical frameworks don’t handle them well. To fix this, we apply a lightweight preprocessing step to “unnest” the data. In the original GTFS-RT format, the vehicle position feed is deeply nested, making it difficult to work with. But once unnesting is applied, the structure becomes flat, with clear column names derived from the original hierarchy. This makes it easy to convert the data into a table format, ensuring smooth integration with tools commonly used by data scientists.

      The GTFS-RT Pipelines

      With this in mind, let’s walk through the two pipelines we built to store and retrieve GTFS-RT data efficiently.

      The entire system relies on two key pipelines that work together. The first pipeline fetches GTFS-RT data from an API every five seconds, processes it, and stores it in an S3 bucket. The second pipeline runs hourly, gathering all the individual files from the past hour, merging them into a single Parquet file, and saving it back to the bucket in a structured format. We will now take a look at each pipeline in more detail.

      Pipeline 1: Fetching and Storing Data

      The first step in the process is retrieving GTFS-RT data. This is done via an API, which returns files in the Protocol Buffer (ProtoBuf) format. Fortunately, Google provides libraries (such as gtfs-realtime-bindings) that make it easy to parse ProtoBuf and convert it into a more accessible format like JSON. 

      Once we have the data in JSON format, we need to split it based on entity type. GTFS-RT files contain different types of data, such as TripUpdate, which provides updated arrival times for stops, and VehiclePosition, which tracks real-time locations and speeds. Not all GTFS-RT feeds contain every entity type, but TripUpdate and VehiclePosition are the most commonly used. The full list of entity types can be found in the GTFS Realtime documentation.

      We separate entity types because they have different schemas, making it difficult to store them in a single Parquet file. Keeping each entity type separate not only improves organization but also enhances compression efficiency. Once split, we apply the same unnesting process as described earlier, ensuring the data is structured in a way that’s easy to analyze. After that, we convert the data into a data frame and store it as a Parquet file in memory before uploading it to an S3 bucket. The files follow a structured naming convention like this:

      {feed_type}/YYYY-MM-DD/hour/individual_{date-isoformat}.parquet

      This format makes it easy to navigate the storage bucket manually while also ensuring seamless integration with the second pipeline.

      Pipeline 2: Merging and Optimizing Storage

      The second pipeline’s job is to take all the small Parquet files generated by Pipeline 1 and merge them into a single, optimized file per hour. To do this, it scans the storage bucket for the earliest unprocessed “hour folder” and begins processing from there. This design ensures that if the pipeline is temporarily interrupted, it can easily resume without skipping any data.

      Once it identifies the files to merge, the pipeline loads them, assigns a proper timestamp to each record, and concatenates them into a single Parquet table. The final file is then uploaded to the S3 bucket using the following naming convention:

      {feed_type}/YYYY-MM-DD/hour/HH.parquet

      If any files fail to merge, they are renamed with the prefix unmerged_{date-isoformat}.parquet for manual inspection. After successfully storing the merged file, the pipeline deletes the individual files to keep storage clean and avoid unnecessary clutter.

      One critical advantage of converting GTFS-RT data into Parquet early in the process is that it prevents memory overload. If we had to merge raw GTFS-RT files instead of pre-converted Parquet files, we would likely run into memory constraints, especially on standard servers with limited RAM. This makes Parquet not just a storage solution but an enabler of efficient large-scale processing.

      Ready for Analytics

      In this section, we will explore how to use the GTFS-RT data for public transport analytics. Specifically, we want to compute delays, that is, the difference between the scheduled travel time and the real travel time. 

      The previously created Parquet files can be loaded into QGIS as tables without geometries. To turn them into point layers, we use the “Create points layer from table” algorithm from the Processing “Vector creation” toolbox. And once we convert the unixtimes to datetimes (using the datetime_from_epoch function), we have a point layer that is ready for use in Trajectools. 

      Let’s have a look at one bus route. Bus 3 is one of the busiest routes in Riga. We apply a filter to the point layer which reveals the location of the route. 

      Computing segment travel times

      Computing travel times on public transport segments, i.e. between two scheduled stops, comes with a couple of challenges:

      1. The GTFS-RT location updates are provided in a rather sparse fashion with irregular reporting intervals. It is not clear that we “see” every stop that happens. 
      2. We cannot rely solely on stop detection since, sometimes, a vehicle will not come to a halt at scheduled stop locations (if nobody wants to get off or on)
      3. The stop ID, representing the next stop the vehicle will visit, is not always exact. Updates are often delayed and happen some time after passing the stop. 

      Here’s an example visualization of the stop ID information of a single trip of bus 3, overlaid on top of the GTFS route and stops (in red):

      To compute the desired delays, we decided to compare GTFS-RT travel times based on stop ID info with the scheduled travel times. To get the GTFS-RT travel times, we use Trajectools and create trajectories by splitting at stop ID change using the Split by value change algorithm:

      Computing delays

      The final step is to compute travel time differences between schedule and real time. For this, we implemented a SQL join that matches GTFS-RT trajectories with the corresponding entry in the GTFS schedule using route information and temporal information: 

      The temporal information is important since the schedule accounts for different travel times during peak hours and off peak: 

      This information is extracted from the GTFS schedule using the Trajectools Extract segments algorithm, if we chose the “Add scheduled speeds” option:

      This will add the time windows, speeds, and runtimes per segment to the resulting segment layer: 

      Joining the GTFS-RT trajectories with the scheduled segment information, we compute delays for every segment and trip. For example, here are the resulting delays for trip ‘AUTO3-18-1-240501-ab-2230’: 

      Red lines mark segments where time is lost compared to the schedule, while blue lines indicate that the vehicle traversed the segment faster than the schedule suggested.

      What’s next

      When interpreting the results, it is important to acknowledge the effects caused by the timing of the next stop ID updates in the real-time GTFS feed. Sometimes, these updates come very late and thus introduce distortions where one segment’s travel time gets too long and the other too short. 

      We will continue refining the analytics and related libraries, including the QGIS Trajectools plugin, to facilitate analytics of GTFS-RT & GTFS.

      After successful testing of this analytics approach in Riga, we aim to transfer it to other cities. But for this to work, public transport companies need ways to efficiently store their data and, ideally, to release them openly to allow for analysis.

      The pipelines we described, help keep storage needs low, which allows us to drastically reduce costs (for a year we would only have a few gigabytes, which is inexpensive to store in S3 storage). Let us know if you would be interested in an online platform on which one could register a GTFS-RT feed & GTFS, which would then automatically start being archived (in exchange, the provider would only need to accept sharing the archives as open data, at no cost for them).

    • sur The Republic of Climate Change Deniers

      Posted: 10 March 2025, 11:38am CET by Keir Clarke
      The United States is currently undertaking the biggest act of climate change denial in history.One striking example is what is happening at the US Federal Emergency Management Agency (FEMA). Over 200 FEMA employees have been fired by the Department of Government Efficiency (DOGE). Those who remain have been ordered to remove all language related to climate change from FEMA websites and

    • sur Mappery: Priscilla Tour

      Posted: 10 March 2025, 11:00am CET

      Ken sent me this. I can see why it is a map in the wild but I didn’t know what it was meant to be saying. A bit of searching suggests that it is related to The Adventures of Priscilla, Queen of the Desert:

      “A 1994 Australian roadcomedy film written and directed by Stephan Elliott. The plot follows two drag queens, played by Hugo Weaving and Guy Pearce, and a transgender woman, played by Terence Stamp, as they journey across the Australian Outback from Sydney to Alice Springs in a tour bus that they have named “Priscilla”, along the way encountering various groups and individuals.”

      UTS might be University of Technology, Sydney – feel free to correct me.

    • sur Paul Ramsey: BC IT Outsourcing 2023/24

      Posted: 10 March 2025, 1:00am CET

      OK, it has been a while since the last time I published this data, but I have a valid excuse.

      The most striking feature of the 2024 chart is the zero’ing out of IBM’s piece of the pie. Big Blue, which once billed the government $107M in a year, has been reduced to a billing rate of less than $5M per year over the last two years.

      Everything else feels more or less the same. After seven years of NDP government, the overall trajectory of outsourcing growth has beeen flattened, but in no way reversed. It is a smaller proportion of overall spend, but the substantial change wrought by the Campbell Liberal government starting around 2005 has been durable – BC IT has a huge outsourced component still.

      The initial surge in smaller local companies after 2017 stalled out by 2021 and had been flat since.

      The most consistent grower is now CGI, which entered the Victoria market around 2005 and has grown to $60M/year in billings with consistent year-over-year increases.

    • 09 March 2025

    • sur Mappery: How to order food in Hokaido

      Posted: 9 March 2025, 11:00am CET

      The simple answer is to find a resaurant that has menus in English as well as Japanese, it’s useful to also know that you are in the right place!

      Another one from Ken

    • sur Paul Ramsey: Cancer 13

      Posted: 9 March 2025, 1:00am CET

      Back to entry 1

      I recently “celebrated” my “cancerversary”, the one-year mark since my GI doctor phoned me up and said the fateful words – “you have cancer”.

      At that moment, my universe shrunk down immensely. All the external stuff, job, professional relationships, volunteerism, just kind of fell away, I had no mental space for it. It was just me and my immediate family and the many, many unknowns.

      My experience since then has included two major physical insults. The “curative” surgery that removed most of my rectum, and the associated c.difficle infection that brutally wrecked my GI tract.

      The insults really knocked me back. Moving around the house involved effort. Meals would lead to stomach pain and long sessions on the toilet. Runs were replaced with walks and then shorter walks. A trip to the cafe became my gold standard for “getting out”.

      Bastion Cafe

      Now, I am immensely “better” than I was this summer. But I am still a very long way from the physical condition I was before (which was excellent). My body just doesn’t work as well anymore. This may slowly resolve over more months, or it may be permanent. As it stands, I feel like I’ve been instantly aged 10-15 years. I went into this process in my early 50s and came out in my late 60s.

      A result of feeling weak and out of control is that I have a lot less confidence than I used to. This manifests in not wanting to leave the house as much, or engage with novel situations. I never know when I am going to have a “bad day” and feel sick or uncomfortable for 24 hours. Travel feels fraught. Staying close to home, feels safer.

      I am a turtle, startled and afraid, drawn up into its shell.

      Turtle

      To try and break out of this pattern, I have scheduled two trips this spring, one personal and one professional. They are both east coast, so there’s a 5 hour flight involved and then all the usual transfers and so on. And then just “living” in a different place. As they get closer, I get more scared. I shouldn’t. The worst case scenario is just “pooping a lot in a hotel room”, but I think the verification of worse-case scenarios is the scary part – maybe I am not someone who travels anymore.

      Most of my other pre-surgery worst-case scenarios have not come to pass. I am still able to climb. I have started running again. I can lift weights again. I have done some middling bike rides. I have rowed on the ocean. I have started some building projects around the house.

      Clover

      But travel is (like going out for dinner) fraught with being away from the home base, and full of questionable activities (like eating for pleasure, or taking a walk not knowing where the next public restroom is). Hopefully these trips will go well, and I will be able to poke my head a little further out of my shell.

      The next station on my cancer journey will be the first monitoring procedures. Colonoscopy and then a CT scan. The odds of anything growing back are low, but I still keep my fingers crossed, since they are not zero.

      Keep f’ing going. See you soon, inshala.

      Hermanns Jazz

    • 08 March 2025

    • sur Mappery: Niseko Taproom

      Posted: 8 March 2025, 11:00am CET

      Ken visited Japan recently for a bit R&R, he couldn’t resist sending us this map-centric menu from a local bar.

    • sur Scrambled Vintage Maps

      Posted: 8 March 2025, 10:44am CET by Keir Clarke
      Vintage Scrambled Maps There's a new Scrambled Maps game in town. If you have been enjoying Tripgeo's popular Scrambled Maps game then you will also love Vintage Scrambled Maps!If you are a fan of maps and enjoy a good puzzle challenge, then Vintage Scrambled Maps is the perfect game for you! This unique and engaging game transforms historical maps into an interactive jigsaw-style experience,
    • 07 March 2025

    • sur Markus Neteler: GRASS GIS 8.4.1 released

      Posted: 7 March 2025, 12:53pm CET

      The GRASS GIS 8.4.1 release provides more than 80 improvements and fixes with respect to the release 8.4.0. Enjoy!

      The post GRASS GIS 8.4.1 released appeared first on Markus Neteler Consulting.

    • sur Mappery: Is this a map?

      Posted: 7 March 2025, 11:00am CET

      Elizabeth saw this in the foyer of a building in SW1.

      The blurb says:

      “Angela Detanico & Rafael Lain – A Different Place, 2022

      This wall painting is based on a method of cartographic writing that correlates a letter of the alphabet with each of the earth’s 24 time zones. That system of navigation, still in use today, was developed in 1802 by American astronomer Nathaniel Bowditch, who is considered the father of maritime navigation. Angela Detanico and Rafael Lain used the lexicon to encode text into a world map, spelling out the phrase “A Different Place.” By melding language with the map, the artists address two of the basic structures- geography and language that govern our daily lives.
      Linguists, semiologists and graphic designers by training, the artists invite viewers to play a decrypting game that unlocks multiple levels understanding. Their rearranged map could represent immigration patterns or the phenomenon of globalisation, but it also serves as a vehicle to reflect on the connection between signs and meaning.”

    • sur The Dot Map of America

      Posted: 7 March 2025, 10:27am CET by Keir Clarke
      One of my all-time favorite interactive maps was created by Dustin Cable at the University of Virginia. Unfortunately, the Racial Dot Map of America was removed in 2022. This map used data from the 2010 Census to place a colored dot on a map for every American - all 308,745,538 of them. As the name suggests, the color of each dot was determined by race.The UVA map, based on 2010 Census

    • sur Kartoza: Introducing the new QGIS Plugins Website and QGIS Hub

      Posted: 7 March 2025, 1:00am CET

      We are excited to announce the release of the newly updated QGIS Plugins Website and the launch of the QGIS Hub Website! These updates bring a fresh new look that aligns with the QGIS branding overhaul, along with significant improvements in user experience.


      Revamped QGIS Plugins Website

      QGIS Plugins Homepage


      The QGIS Plugins website has undergone a major redesign to enhance usability and provide a seamless experience for users. With a modernised interface and improved navigation, users can now find and manage plugins more efficiently. Some of the key updates include:

      1. A fresh UI that matches the latest QGIS branding.
      2. Enhanced browsing experience with better categorisation of plugins.
      3. Detailed plugin pages showcasing ratings, download counts, and descriptions more clearly.
      4. Improved search and filtering options to find the right plugin quickly.
      5. A more intuitive submission process for plugin developers.


      Plugins List with Grid View and a Table View


      Plugins search and details page


      Introducing QGIS Hub

      QGIS Hub Homepage


      In addition to the plugin update, we are thrilled to introduce the QGIS Hub, now available at https://hub.qgis.org. This new platform serves as a dedicated space for sharing QGIS resources such as styles, 3D models, geopackages projects files, QGIS Layer Definition (QLR) files, and much more. By separating this section into its own website, we have made it easier for users to discover and access valuable resources.


       Key features of the QGIS Hub include:

      1. A visually appealing homepage with featured resources.
      2. A well-organised list view for browsing available assets.
      3. Detailed resource pages with previews and descriptions.
      4. Advanced search functionality to quickly locate specific resources.
      5. A seamless submission process for users who wish to contribute their resources.


      Resources list and details page


      Thank you to the QGIS Community

      QGIS is developed by a team of dedicated volunteers, companies and organisations. The QGIS project relies on sponsorships and donations for much of their funding. Without the contributions of the QGIS sustaining members and donors and all volunteers, these continued improvements would not be possible. At Kartoza we are fortunate to employ both a QGIS Document Writer and QGIS Developer as fulltime staff members, an achievement made possible through the donations from QGIS community. Thank you to Tim Sutton (member of QGIS Steering Committee) for donating his time and helping make these updates possible.


      Experience the New Platforms Today!

      We invite you to explore the new QGIS Plugin website and the QGIS Hub today. These updates are designed to enhance your workflow and make it easier to extend and enrich your QGIS experience. We look forward to your feedback and continued support as we work to improve the QGIS ecosystem!

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