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Posts by TerraLab

AI GIS: What It Does Today and Which Tool to Use

AI GIS is software that does GIS work from imagery or a plain request. The five jobs it handles in 2026, the tools for each, and where it still fails.
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Tree Inventory in QGIS From Aerial Imagery

Build a tree inventory in QGIS: one point per tree from aerial imagery or LiDAR, with ID, crown size and height, then species and condition from the field.
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What Is Remote Sensing? Sensors, Free Data, QGIS

Remote sensing is measuring the ground from satellites, planes and drones. The sensors, the free data, and a Sentinel-2 workflow in QGIS, step by step.
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AI Agent QGIS Plugin: The Most Powerful AI Agent for QGIS

AI Agent, a free QGIS plugin, scored 43.8 out of 100 on Google's geospatial benchmarks, against 24.9 for Claude Sonnet 5.5 with a QGIS MCP server.
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Figure Ground Map: What It Is and How to Make One

A figure ground map shows buildings in black and the rest in white. How to make one in QGIS from open footprints, or from an aerial image without them.
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IGN WMS and WMTS in QGIS: Geoplateforme URLs, Layers, Fixes

The IGN Geoplateforme URLs that answer on 19 October 2026, the exact layer names, WMS vs WMTS measured in QGIS, and why a French layer stays blank.
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Urban Infill: What It Is, and Three Scenarios on One Lot

Urban infill means building on vacant or underused land inside a city. The five kinds of lot, how to find them in QGIS, and one lot rendered three ways.
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Geocoding in QGIS: 5 Free Ways Compared on Real Addresses

How to geocode addresses in QGIS for free with Nominatim, MMQGIS, the US Census and the French BAN, with match rates and errors measured on 200 real schools.
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How to Make a Map in QGIS: Step by Step, Then With AI

Make a map in QGIS 3.44 from open data: style it, label it, build a print layout with legend, scale bar and north arrow, export it. Then the same map by AI.
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GIS Digitizing in QGIS: By Hand, From a Scan, or With AI

How to digitize a map in QGIS: draw polygons by hand with snapping and tracing, trace a scanned map, convert a raster, or let AI outline every object at once.
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