Figure 2
Illustration of the two main stages of the algorithm. (a) First stage: finding a set of possible directions (shown here by arrows) for a given set of reflections (here blue points A through F) and selecting the `best' one(s) to consider at the second stage. Among the ten directions found for the set of points A, B, C, D, E, F, the `best' one (shown by the green arrow) is identified as that corresponding to the largest number of collinear vectors. (b) The second stage: finding the `proper' distance between the reflections (here denoted as `d') in the selected direction. (c) An example of a view of the reciprocal space with the subset of points (orange dots) found in the initial set (blue dots). |