Maritime navigational information has historically been distributed in two different perspectives: the surface, or bridge, perspective of the sailing descriptions and coastal views, and the synthetic, bird's eye perspective of the nautical charts. A coastal view contains topographical information necessary for visual identification that the chart often lacks. But the coastal view is a static picture depicting the coast from one particular place. Modern computer visualisation and 3-D technique now allows us to show the chart like a dynamic coastal view from a bridge perspective adding fair-ways and shallow water areas and thus possibly making conning more intuitive and safe.
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