Posts by TerraLab

From a Google Satellite view of Letchworth Garden City to a four-class site plan in under a minute. The manual route, the AI route, and where each one breaks.

Five ways to show a street rebuilt, from hand-drawn vector layers to a generated aerial view. Only one gives back a picture that stays on the map.

From the official hazard map to a generated aerial view of the water. Which method gives a number, which gives a picture, why an elevation model changes both.

For a classified raster, use Raster > Conversion > Polygonize. Here are the five methods, the fix for staircase edges, and what to do with a photograph.

A building footprint is the outline where a building meets the ground. Most downloadable ones follow the roof. The difference, floor area, and the open data.

GeoAI is machine learning run on geographic data. The five things it extracts today, what it costs in hardware and time, and how to run it in QGIS.

Draw a zone, name the object, run it: you get a polygon layer in minutes. Open data, hand-digitizing and AI detection compared, with the filtering step.

SAM outlines an object from a click or a word. Seven QGIS plugins run it: what each costs, which needs an NVIDIA card, and how to install one.

Draw a zone, name the object, get every polygon as a clean vector layer. The full run in QGIS, the three-step review in any order, and Semi-Auto mode.

Turn the aerial imagery in your QGIS canvas into edits, clean maps, and vector data with plain-language prompts, using AI Edit by TerraLab.