| 摘要 |
A method of generating a historical-geographic representation from a geographic map, which comprises: - displaying a geographic map on a monitor, by means of a computer, as a vector image comprising a primary terrestrial area; - dividing, by using the computer, the primary terrestrial area into a plurality of adjacent, non-overlapping elemental areas, which together cover the entire primary area; - associating each elemental area with at least one numerical time interval included in a macro-historical period, the numerical interval being associated with a historical layer, indicative of a geopolitical entity; - receiving time data indicative of a historical time included in said macro-historical period; - selecting a numerical time interval for each elemental area, said interval including the time data so received, and extracting the historical layer associated with the selected numerical time interval; - displaying the primary terrestrial area by associating a color to each historical layer, such that different historical layers are associated with different colors and elemental areas associated with the same historical layer are graphically represented with the same color. |
