A polygon is (weakly) edge-visible if there exists an edge such that every other point in the polygon is visible from some point in the edge. There are well-known linear-time algorithms [1, 2] for finding all visible edges in a polygon without holes. In a polygon with holes, only a tight bound on the number of visible edges has been established; there may be at most three on the boundary and three on one of the holes [3]. In this paper, we present concrete linear-time algorithms for finding the constant number of visible candidate edges in a polygon with holes. Our algorithms take the similar approach of Shin and Woo [1] in a polygon without holes in order to realize the theoretical results of Park et al. [3] on the number of visible edg-es in a polygon with holes.
목차
Abstract 1. Introduction 2. Preliminary Definitions 3. Comparing Two Approaches for a Polygon without Holes 4. Determining Visible Candidate Edges in a Holed-Polygon 4.1. Overview of Park et al.’s Results [3] 4.2. Algorithms for a Polygon with Only One Hole 4.3. Algorithms for a Polygon with Multiple Holes 5. Conclusion and Further Researches 5.1. Conclusion 5.2. Further Researches Acknowledgements References
키워드
Computational geometryEdge visibilityGallery problem
저자
Jong-Sung Ha [ Department of Software Engineering, Chungbuk National University ]
Kwan-Hee Yoo [ Department of Game and Contents, Woosuk University ]
Corresponding Author
보안공학연구지원센터(IJSEIA) [Science & Engineering Research Support Center, Republic of Korea(IJSEIA)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Software Engineering and Its Applications
간기
월간
pISSN
1738-9984
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Software Engineering and Its Applications Vol.8 No.10