On Romeo and Juliet problems: Minimizing distance-to-sight
SCIE
SCOPUS
- Title
- On Romeo and Juliet problems: Minimizing distance-to-sight
- Authors
- Ahn, H.-K.; Oh, E.; Schlipf, L.; Stehn, F.; Strash, D.
- Date Issued
- 2019-11
- Publisher
- ELSEVIER
- Abstract
- We introduce a variant of the watchman route problem, which we call the quickest pair-visibility problem. Given two persons standing at points s and t in a simple polygon P with no holes, we want to minimize the distance they travel in order to see each other in P. We solve two variants of this problem, one minimizing the longer distance the two persons travel (min-max) and one minimizing the total travel distance (min-sum), optimally in linear time. We also consider a query version of this problem for the min-max variant. We can preprocess a simple n-gon in linear time so that the minimum of the longer distance the two persons travel can be computed in O(log(2) n) time for any two query positions s, t where the two persons start. (C) 2019 Elsevier B.V. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/100366
- DOI
- 10.1016/j.comgeo.2019.07.003
- ISSN
- 0925-7721
- Article Type
- Article
- Citation
- COMPUTATIONAL GEOMETRY-THEORY AND APPLICATIONS, vol. 84, page. 12 - 21, 2019-11
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.