Normalizing all surfaces
                                        You can normalize all surfaces in the network. In this process, the sizes of the surfaces are calculated correctly (Fundamentals: Multi-part surfaces).
You only need this functionality if you have previously read in a network or a shapefile without normalizing the surfaces (Opening and saving a network file and adding comments and Importing Shapefiles).
1. From the Edit menu, choose Surfaces > Normalize surfaces (self-intersecting test).
The Normalize surfaces (self-intersecting test) window opens.
2. Select the desired option for the network object types.
| 
                                                         Element  | 
                                                    
                                                         Description  | 
                                                
| 
                                                         All  | 
                                                    
                                                         If this option has been selected, all surfaces of the network object type are normalized.  | 
                                                
| 
                                                         None  | 
                                                    
                                                         If this option has been selected, no surface of the network object type is normalized.  | 
                                                
| 
                                                         Only active ones  | 
                                                    
                                                         If this option has been selected, the Open the 'Filters' dialog symbol   | 
                                                
3. Confirm with OK.
The desired surfaces in the network are normalized.
 becomes available. You can activate network objects via the filter 
