2. The selected base point must be recognizable on the omap (Ovi) map, and the point must be selected on the map.

3. Right-click the point and select Add Label.

4. Enter personalized information in the pop-up dialog box, and then click Add to Favorites, and a red label will appear on the map.

5. Save the CAD file as dxf file, and then drag it to the omap map.

6. After that, select the associated points for coordinate transformation and manage the associated points, and it is completed.