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Tag: qgis

QGIS Session Report: FOSS4G Hiroshima 2026 - QGIS LAB by MIERUNE

Introduction FOSS4G Hiroshima 2026 is an international conference that brings together people from around the world who work with open source geospatial software (FOSS4G). It was held in Hiroshima Pre...
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Site Plan vs Plot Plan: What Each One Shows

A plot plan draws one lot: its lines, its building, its setbacks. A site plan draws the whole project. Which one a permit asks for, and who draws it.
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What Is an Orthomosaic? Orthomosaic vs Orthophoto Explained

An orthomosaic is one map-corrected image stitched from many aerial photos. An orthophoto is one corrected photo. Which you have, and where seams go wrong.
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Sowing Kumoy Seeds at FOSS4G Hiroshima - QGIS LAB by MIERUNE

Introduction Hello, everyone. I am Lay, a QGIS engineer at MIERUNE, originally from France. Sorry if my Japanese sounds unnatural in places. I took part in FOSS4G Hiroshima 2026 as a presenter and wor...
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Semantic vs Instance Segmentation on Aerial Imagery

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 10 real runs, from georeferencing an old map to an HTML report.
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Greenfield vs Brownfield Sites: Meaning and Differences

A greenfield site has never been built on. A brownfield site has, and may still hold slabs, sheds or contamination. What each costs and how to tell them apart.
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How to Add a Basemap in QGIS: XYZ, WMS and Plugins

Browser panel, XYZ Tiles, double-click OpenStreetMap. Then Google, Esri and Bing by URL, national imagery by WMS, and which basemap a detection model can read.
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DSM vs DTM vs DEM: What's the Difference and Which to Use

A DSM is the top of everything: roofs, treetops, ground. A DTM is bare ground alone, and DEM usually means the same. Which one to use for flood, slope or 3D.
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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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