Chapter 7 was about building a 3D web scene.
Using Scan Viewer we are making architecture, construction and urban planning easier to visualize.
Photorealistic – recreating reality using photos they use photos for these scenes because they are very good at showing texture and objects like a city.
Cartographic – makes a 2D thematic mapping into 3D. Using attribute symbols to show physical, abstract, or invisible features like population density, flight paths, solar impact, and zoning laws.
They main elements in scenes:
- Surfaces are continuous measurements of elevation with only one value for a location. Often referred to as digital models DEM(elevation), DTM(terrain), DSM(surface).
- Features can be 2D or 3D and are live on, above, or below surfaces. Operational layers of 3D maps.
- Textures are the exterior or interior 3D features. They use aerial imagery or cartographic symbols.
- Atmospheric effects are like fog and lightning.