Introduction
When a terrain file is exported to KMZ/KML format, the contours are not immediately shown. The contours are a part of the terrain element and must be simplified to line strings before exporting.
Instructions
To drop the terrain element so that the contours are simplified to line strings, please follow the steps below:
1. Open the properties dialog and select the terrain model.
2. Toggle On the major and/or minor contours.
3. Access the Drop Element tool. Here, select to drop Complex and Application Elements
4. Select the Terrain once to drop it.
5. Select the Terrain and drop it once more. (This will simplify the contours to line strings.)
6. Use the Export Google Earth File tool to create the KMZ/KML file.