Continuous Visible Query for Three-Dimensional Objects in Spatial Databases
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-22
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Present research of visible query focuses on points and segments in two-dimensional space, while disfigurements occur during processing of visible query in three-dimensional space.
In this paper, Continuous Visible Range Query Based on Control Point (CVRQ-CP) is proposed to solve the visible query in a 3D spatial database.
Firstly, the horizontal angle (HA) and Vertical Projection Angle (VPA) for 3D objects in a spatial database were used in the visibility testing method.
The HA and VPA in the processing of the continuous visible query created visibility changes, defining and confirming the control point.
Finally, the algorithm of Continuous Visible Range Query Based on Control Point (CVRQ-CP) was proposed.
Verified by experiments, the CVRQ-CP algorithm correctly deals with the visible query of 3D spatial objects.
The CVRQ-CP algorithm has better superior accuracy over present visible queries in 3D spatial databases.
American Psychological Association (APA)
Liu, Yongshan& Kong, Dehan. 2016. Continuous Visible Query for Three-Dimensional Objects in Spatial Databases. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1112439
Modern Language Association (MLA)
Liu, Yongshan& Kong, Dehan. Continuous Visible Query for Three-Dimensional Objects in Spatial Databases. Mathematical Problems in Engineering No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1112439
American Medical Association (AMA)
Liu, Yongshan& Kong, Dehan. Continuous Visible Query for Three-Dimensional Objects in Spatial Databases. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1112439
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1112439