All CollectionsDrawingDrawing DataDrawing DataAbout the data behind Giraffe drawingsBy Holly1 author·5 articlesGiraffe EngineThe Giraffe engine turns the geometries you draw into buildings, floors, and metrics.Video: Urban Data OntologyMetric vs ImperialHow Giraffe calculates distances and areasGeometry & FeaturesHow GeoJSON powers GiraffeGeoJSONWhy we use the GeoJSON data format in Giraffe