3D Topographic Map Simulation

This real-time 3D simulation illustrates how topographic maps are created and used to depict changes in elevation. A topographic map is characterized by large-scale detail and quantitative representation of relief using contour lines. Rendered in real-time 3D, it is easy to understand how topographic maps are created since the simulation shows the same virtual environment in both a 3D mesh and 2D map format.

Students are able to sculpt mountains and valleys in real-time and see the changes to the corresponding topographic map as well as the 3D environment. To represent elevation, relief, and slope on the topographic map the simulation uses contour lines and elevation level indicators, while it simultaneously renders the scene in 3D.

On a topographic map, a contour line connects points of equal elevation. Select the Raise or Lower tool, and then start digging into the 3D terrain. See how the changes you make to the mountain affect the topographic map and 3D terrain.

Zoom, Rotate, and Move Tools allow students to explore the topography in real-time 3D. The simulation can randomly generate terrain or students can create their own. In addition to the 3D and map view, students can also overlay the topographic map onto the 3D terrain to further understand how topographic maps work.