Selecting items such as data files

摘要

Method and apparatus for mapping logical relations between a plurality of data files or between a plurality of segments of a data file, in which a selectable first region is defined for a first file or segment, a pluarlity of second regions are defined for second files or segments logically related to the first file or segment and being spatially related to the first region, and a plurality of (i+1)-th regions are defined for (i+1)-th files or segments logically related to the i-th file or segment and being spatially related to the i-th region. For a selected j-th file or segment (where 1 ‰ j ‰ n) represented by one of said regions, generating an additional region for each file or segment that has a predetermined logical connection to the (j)-th file or segment, each additional region including data indicating a significance of said respective connected file or segment.