Dynamic Environmental Modeling
نویسنده
چکیده
We introduce an eecient and robust spatial index to support a set of diier-ent queries, which is developed from G unther's Celltree 6 and the Monotonous Bisector Tree 11;16. In practice, huge scenes are manageable by using the paging{concept. For convex polyhedrons in N{dimensional real space and any L p {metric (1 p 1) we are able to show that the C-tree can be constructed in time O(n log n), linear space and logarithmic height, where n denotes the number of objects. Dynamic insertion of objects is performed in O(log 2 n) amortized worst{case time. Objects can be deleted in amortized O(n) or in amortized O(log 2 n) if the update of cluster radii can be delayed. In all cases logarithmic height and linear space requirements are preserved.
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