CityTwin demointro
NVIDIA Hackathon ConceptLondon Open Data + OSMLive CityTwin

Draw a zone.
Watch London redesign itself.

Select a 4+ point polygon. The demo fetches nearby road, building, park and water geometry, snaps generated streets to real boundary roads, protects water by default and rebuilds the neighbourhood as you drag every point.

Planning enginelive
Planning engine

Ready. The demo zone will load automatically; drag any vertex to regenerate.

OSM roads -Water masks -Anchors -
Urban controlsclosed
What the demo provestopology
Existing OSM roadsFetched as real LineStrings, not guessed from a raster tile.
Snapped new roadsCyan connectors start on existing roads and pass through boundary anchors.
Generated zoningHomes, parks and parking rebuild on every polygon or slider change.
Water exclusionRivers and water bodies are protected unless the checkbox is enabled.
Impact dashboardNo scenario yet
Selected area
-
hectares
Homes
-
estimated capacity
Road links
-
exact OSM snaps
Water protected
-
inside zone
Buildings
-
generated footprints
Parking
-
estimated spaces

AI planning note

Waiting for a valid polygon. Click four or more points, or use the demo zone.

Click at least four points. Drag cyan vertices. White handles add new points.