, Volume 34, Issue 2, pp 231-250

Lines Avoiding Unit Balls in Three Dimensions

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Abstract

Let B be a set of n unit balls in ℝ3. We show that the combinatorial complexity of the space of lines in ℝ3 that avoid all the balls of B is O(n3+ε), for any ε > 0. This result has connections to problems in visibility, ray shooting, motion planning, and geometric optimization.