Visibility with a moving point of view
Algorithmica, 1994•Springer
We investigate three-dimensional visibility problems in which the viewing position moves
along a straight flightpath. Specifically we focus on two problems: determining the points
along the flightpath at which the topology of the viewed scene changes, and answering ray-
shooting queries for rays with origin on the flightpath. Three progressively more specialized
problems are considered: general scenes, terrains, and terrains with vertical flightpaths.
along a straight flightpath. Specifically we focus on two problems: determining the points
along the flightpath at which the topology of the viewed scene changes, and answering ray-
shooting queries for rays with origin on the flightpath. Three progressively more specialized
problems are considered: general scenes, terrains, and terrains with vertical flightpaths.
Abstract
We investigate three-dimensional visibility problems in which the viewing position moves along a straight flightpath. Specifically we focus on two problems: determining the points along the flightpath at which the topology of the viewed scene changes, and answering ray-shooting queries for rays with origin on the flightpath. Three progressively more specialized problems are considered: general scenes, terrains, and terrains with vertical flightpaths.
Springer
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