And excludes decorative surface.

The visible geometry. The coastal district contains rock formations and curved paths leading towards the lookout. The harbour reference describes cargo containers, mooring posts.

Industrial fence can be combined with the corner section to enclose a storage area. A group of street objects provides lighting, benches and signs along the pedestrian.

Surface details. Objects with repeated dimensions can form a longer boundary along the pedestrian route. The mountain district contains rock formations and curved paths leading towards the lookout.