This is a calculator of interatomic distances. There are two possibilities that are selected by option 0. The first one is called pair_limiting. The menu:
..............MENU for exploring distances ...........
......... Change these parameters if necessary: ......
0. Method for exploring distances: pair_limiting
1. Pair of atoms to be studied: 1 and 1
2. Number of spheres of images to be 3
3. Calculate distances
4. Quit: skip the step and do NOT proceed.
In this case for the given pair of atoms (optin 1) all the images in the increasing order will be given by option 3 (up to the desired number of spheres neighbours, given in option 2).
The other option is all_shortest. Its menu is simply
..............MENU for exploring distances ...........
......... Change these parameters if necessary: ......
0. Method for exploring distances: all_shortest
3. Calculate distances
4. Quit: skip the step and do NOT proceed.
---> Choose the item and press ENTER:
It gives distances between all species (including images in adjacent cells); only the shortest distance in each case is chosen and then, after ordering, are shown on the screen (option 3).