Visual Verification of 3D Terrain

Press the 3D View icon on the Selection Toolbar or choose 3D View from the Window menu. The 3D window calculates the cut/fill colors and surfaces before displaying. The 3D View Window adds greater flexibility to viewing and verifying the 3D surfaces and is a much more flexible version of the 3D Terrain which allows greater control over the view. Using the 3D View controls, inspect the site for any spikes or bad elevations. Use the Arrow keys on the keyboard to drive through the site. The Up and Down arrows move forward and back. The Right and Left arrows turn. For additional clarity you may want to turn the Overlay off by pressing O on the keyboard or through the Display Menu. The speed of the drive is based on the Arrow Rate setting which is located on the Edit menu. Each arrow key-press has a distance that the Arrow Rate controls. The speed of your computer and video adaptor can also affect screen speed.

Try using the 3D controls to change the views and get a feel for what they do. Also try changing the Reference and Difference surfaces to see the different views and comparisons.

Also see: Definition of a Surface