Sorting the coordinate list

For faster manipulation, the coordinate list is sorted. While the actual coordinate list is physically located on the disc (file .crd), the data on points sorting (file .crx) are loaded in the computer's memory for faster manipulation.

The coordinate list can be sorted in three ways:

Sorting according the prefix and according the point number applies only to the points with numeric identifiers. For the points with alphanumeric identifiers, the prefix or number isn't recognized; these points are sorted alphabetically (similar to a phone book).

The way of sorting can be only set for the GROMA system globally; you can't choose a different sorting method for each list. You can set the sorting method in Settings->Environment.