Abstract
We study planar point location in a collection of disjoint fat regions, and investigate the complexity of local updates: replacing any region by a different region that is similar to the original region. (i.e., the size differs by at most a constant factor, and distance between the two regions is a constant times that size).We show that it is possible to create a linear size data structure that allows for insertions, deletions, and queries in logarithmic time, and allows for local updates in sub-logarithmic time on a pointer machine. We also give results parameterized by the fatness and similarity of the objects considered.
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