Pii: S0925-7721(00)00019-5

نویسنده

  • Monique Teillaud
چکیده

We propose algorithms to perform two new operations on an arrangement of line segments in the plane, represented by a trapezoidal map: the split of the map along a given vertical lineD, and the union of two trapezoidal maps computed in two vertical slabs of the plane that are adjacent through a vertical line D. The data structure we use is a modified Influence Graph, still allowing dynamic insertions and deletions of line segments in the map. The algorithms for both operations run in O(sD logn+ log2 n) time, where n is the number of line segments in the map, and sD is the number of line segments intersected byD.  2000 Elsevier Science B.V. All rights reserved.

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تاریخ انتشار 2000