The terrain – Overlay dialog allows us to cover the surface topography with photos, objects from drawings, labels or other surfaces. Many photographs, drawings, labels and the surface may be coated simultaneously. The image will be re-sampled and “spray paint” or “coat” surface topography. The objects from the drawing to be converted into the equivalent 3D object is placed in the landscape and 3D terrain. The colors used to draw objects superimposed terrain will be taken from their format in their drawings home. Overlay one image or another component in a terrain
1. Verify that the terrain and all the components to be covered are georegistered correct by viewing the surface of the terrain and the ingredients together in a map.
2. Open the topography of the terrain window.
3. Select Terrain – Overlay.
4. In the Components window, check the check box of the components to be covered. Use the scroll button in the toolbar of the dialog box to move the components up and down to the order in which they are covered.
5. Select the desired option for the area, labels, lines and points, and click OK.
The choice of terrain – Overlay dialog allows control how objects are represented by drawing 3D objects in view the terrain.
Check one of the options displayed (Embedded texture or paint on the terrain) to display the area, labels, lines or spots in the coating. Without Embedded texture nor on the terrain paint is checked, then the object of that type will not appear in the coating. Overlays can be very slow to initially calculate the graphics card does not support hardware texture. Even in fast card, the initial calculation of a coating can take a few minutes. After displaying the terrain to cover, watch will continue at normal speed.