DC Field | Value | Language |
---|---|---|
dc.contributor.author | KIM, SH | ko |
dc.contributor.author | Shin, Sung-Yong | ko |
dc.contributor.author | CHWA, KY | ko |
dc.date.accessioned | 2013-02-27T19:06:18Z | - |
dc.date.available | 2013-02-27T19:06:18Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1995-12 | - |
dc.identifier.citation | INTERNATIONAL JOURNAL OF COMPUTATIONAL GEOMETRY APPLICATIONS, v.5, no.4, pp.433 - 458 | - |
dc.identifier.issn | 0218-1959 | - |
dc.identifier.uri | http://hdl.handle.net/10203/70284 | - |
dc.description.abstract | A diagonal guard is a guard capable of moving along an edge or an internal diagonal in a polygon. A polygon which can be guarded by a diagonal guard is called diagonal-visible. We consider the following three problems concerning the diagonal visibility in a polygon P. First, determine whether or not a guard diagonal exists in P, i.e., P is diagonal-visible. Second, compute all guard diagonals of P. Third, given a query diagonal, determine whether or not it is a guard diagonal. For these problems, we construct a data structure for keeping all guard diagonals in O (n log n) time and O(n) space. Using this data structure, we show that these problems can be solved in O(n log n), O(n log n + k), and O(1) time, respectively, where k is the number of guard diagonals. | - |
dc.language | English | - |
dc.publisher | WORLD SCIENTIFIC PUBL CO PTE LTD | - |
dc.subject | LINEAR TIME | - |
dc.subject | CONVEX-HULL | - |
dc.subject | SEGMENT | - |
dc.title | EFFICIENT ALGORITHMS FOR SOLVING DIAGONAL VISIBILITY PROBLEMS IN A SIMPLE POLYGON | - |
dc.type | Article | - |
dc.identifier.wosid | A1995TG50100006 | - |
dc.type.rims | ART | - |
dc.citation.volume | 5 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 433 | - |
dc.citation.endingpage | 458 | - |
dc.citation.publicationname | INTERNATIONAL JOURNAL OF COMPUTATIONAL GEOMETRY APPLICATIONS | - |
dc.identifier.doi | 10.1142/S021819599500026X | - |
dc.contributor.localauthor | Shin, Sung-Yong | - |
dc.contributor.nonIdAuthor | KIM, SH | - |
dc.contributor.nonIdAuthor | CHWA, KY | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | VISIBILITY | - |
dc.subject.keywordAuthor | POLYGON | - |
dc.subject.keywordAuthor | WEAK VISIBILITY | - |
dc.subject.keywordAuthor | GUARD DIAGONAL | - |
dc.subject.keywordPlus | LINEAR TIME | - |
dc.subject.keywordPlus | CONVEX-HULL | - |
dc.subject.keywordPlus | SEGMENT | - |
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