Skip Navigation

The Computer Journal 1996 39(6):541-546; doi:10.1093/comjnl/39.6.541
© 1996 by British Computer Society
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (2)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Bozanis, P.
Right arrow Articles by Tsakalidis, A.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Red-Blue Intersection Reporting for Objects of Non-Constant Size

P. Bozanis1 *, N. Kitsios *, C. Makris * and A. Tsakalidis *

1 Department of Computer Engineering and Informatics, University of Patras, 26500 Patras, Greece, 2 Computer Technology Institute Institute, P.O. Box 1122, 26110 Patras, Greece

Let Q1 be a set of ‘red’ geometric objects and Q2 a set of ‘blue’ ones. The objects in Q1 and Q2 are of arbitrarily large description size but each one is the union of simpler constant size components. We consider the problem of reporting all intersections between objects of Q1 and objects of Q2 in a time that depends on the size of the output. This is equivalent to painting the constant size objects in Q1 and Q2 and reporting colour intersections between Q1 and Q2. We present a technique that yields simple output-sensitive algorithms for many kinds of geometric objects. We also show that, using the same technique, it is possible to report all intersecting pairs in a set of objects in an output-sensitive manner.

Received May 26, 1995. revised July 26, 1996.

* Department of Computer Engineering and Informatics, University of Patras, 26500 Patras, Greece

§ Computer Technology Institute, P.O. Box 1122, 26110 Patras, Greece

Email: bozanis{at}ceid.upatras.gr


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.