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Comparing two sets of polygonsGomboši, Matej ; Žalik, Borut ; Krivograd, SebastianIn this article, a new algorithm for determining differences between two sets of polygons is considered. It has been proven that it is enough to test only the polygon edges to perform the comparison. ... The algorithm works in two steps.First, the polygon edges are initialised into a data structure and equaledges are eliminated by a simple criterion. In the second part, the algorithm analyses the remaining edges and prepares a report about the detected differences. To speed-up the geometric search, the algorithm uses a combination of a uniform space subdivision and binary searching trees. It has been shown that the algorithm is numerically stable, and works well with a limited set of non-simple polygons from a land cadastre. The algorithmćs time complexity is O(n log n), and space complexity O(n), where n is the common number of edges in both sets of polygons. This is been confirmed by experiments using data sets from the land cadastre.Source: International journal of geographical information science. - ISSN 1365-8816 (Vol. 17, no. 5, Jul.-Aug. 2003, str. 431-443)Type of material - article, component partPublish date - 2003Language - englishCOBISS.SI-ID - 8050966
Author
Gomboši, Matej |
Žalik, Borut |
Krivograd, Sebastian
Topics
računalniška geometrija |
poligoni |
mnogokotniki |
robovi |
primerjava |
algoritem |
kataster |
computational geometry |
polygons |
edges |
comaprison |
algorithm |
land cadastre
source: International journal of geographical information science. - ISSN 1365-8816 (Vol. 17, no. 5, Jul.-Aug. 2003, str. 431-443)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Gomboši, Matej | 20321 |
Žalik, Borut | 06671 |
Krivograd, Sebastian | 21317 |
Source: Personal bibliographies
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