GPS for Dummies.pdf - Engineering Surveyor

264Part III: Digital Mapping on Your ComputerCreating a 3-D sceneAfter selecting the area, you’re now ready to create a 3-D scene:1. Choose 3-D Scene from the Operation menu.2. In the Terrain Projection Parameters dialog box that opens (as shown inFigure 16-2), enter options to change the appearance of the 3-D image.For this example, use the default settings.Figure 16-2:Change the3-D imageappearancehere.3. Click OK.The Terrain Colors dialog box opens (as shown in Figure 16-3). The settingsin this dialog box allow you to change the colors of the 3-D image,such as associating different colors with different elevations. For thisexample, use the default settings.4. Click OK.3DEM opens a separate window, displaying a smoothed, 3-D image of theview that you selected. In this example, Figure 16-4 shows the view insidethe Mount St. Helens crater.