From Map Data to 3D Buildings in OsmAnd
In films like Angels & Demons, Rome never feels flat. The city unfolds through narrow streets, archways, inner courtyards, and massive stone buildings rising above the crowd. You remember not only where the characters go, but the space around them — the height of the facades, the passages through buildings, the way entire streets disappear beneath arches before opening into another square.
But on most digital maps, cities lose that depth. Buildings become flat shapes, reduced to outlines that show where something exists, but not how the city actually feels. For mappers, this is where building data starts to matter.
In OpenStreetMap, buildings can contain far more than a simple outline. Mappers can describe a building's height, the number of floors, where different sections begin, and even passages running through the structure. OsmAnd uses this data to transform flat map geometry into detailed 3D cityscapes. Buildings gain height, complex structures become distinguishable, and streets start to feel closer to the real places they represent.
