QGIS User Conference 2026

Tag: qgis

Semantic vs Instance vs Panoptic Segmentation: The Difference

Semantic segmentation labels every pixel with a class: building or not. Instance segmentation draws every building as its own object.
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AI Agent for QGIS: The Complete Guide

How to use AI Agent in QGIS: install it, write your first request, stay in control, then 5 real tasks, from open data to an HTML report.
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Greenfield vs Brownfield Sites: Meaning, Costs, How to Spot Them

A greenfield site was never built on; a brownfield site was, and may hold slabs or pollution. What each costs, how it looks from the air, 314 sites counted.
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How to Add a Basemap in QGIS: XYZ, WMS, QuickMapServices

Browser panel > XYZ Tiles > double-click OpenStreetMap. Then satellite tiles by URL, QuickMapServices, a national WMS, and the ground size of each zoom.
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DSM vs DTM vs DEM: The Difference, Measured, and Free Downloads

A DSM is the top of everything, a DTM bare ground, a DEM either. On one town tile the DSM made 41% of the ground steeper than 30°, the DTM 7%. 8 free sources.
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Revue de presse du 4 septembre 2026

La GeoRDP de rentrée, avec des exercices de maths et de SVT pour affûter votre géo-logique !
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[Blog] A new direct way to connect Trimble receivers

Connect Trimble receivers directly to Mergin Maps with our new integration. Enjoy a seamless, single-tap setup and full access to high-accuracy GPS data.
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Colored site plan: the same block four ways

Flat, watercolor, pencil and glossy, all rendered from one aerial image of Letchworth Garden City. Every prompt in full, and where the model invented water.
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Detect Solar Panels in QGIS: 5 Methods

Check OpenStreetMap first. Then four ways to map rooftop PV from aerial imagery in QGIS, with the menu paths and where each one fails.
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Detect Swimming Pools in QGIS: 5 Methods

Start with QuickOSM on leisure=swimming_pool. Where the map is thin, use a segmentation model, threshold the blue, or run a water index. Five methods compared.
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