What is 3D visualization in GIS?

3D visualization in GIS refers to the representation of geographic data in a three-dimensional format, which significantly enhances spatial analysis by allowing users to better understand the relationship between different layers of data and the terrain. This visualization technique leverages three-dimensional models to present spatial information in a manner that is more intuitive, making it easier to interpret complex data.

Using 3D visualization, professionals can visualize elevation changes, analyze visibility, model natural phenomena, and simulate scenarios in a way that flat two-dimensional maps cannot achieve. This capability improves decision-making related to urban planning, environmental assessments, and various other applications where depth perception and spatial orientation are crucial.

The other options describe concepts that do not pertain to 3D visualization, such as creating flat maps, layering geographic data in a 2D context, or displaying textual data graphically, which are foundational elements of GIS but do not utilize the three-dimensional aspects that enhance spatial analysis.