Algorithms and data structures for presenting geographic data on a raster display are described. / A new algorithm MAPFILL quickly renders color-coded thematic maps. The use of MAPFILL to render both contour maps and choropleth maps is described. Some variant versions of MAPFILL provide anti-aliasing, while others provide pattern-fill capabilities. Generalized forms of MAPFILL color map regions with elements from an abelian group. A method of extending the algorithms to render not only maps in the plane but also maps of the whole earth is explained. / Also described is a hierarchical vector-type cartographic data base design which allows efficient selective rendering of border detail. / A software system called GeoGraph, developed by the author, implements many of the proposed algorithms. This software is described from the point of view of both a new user and a programmer. / Source: Dissertation Abstracts International, Volume: 51-09, Section: B, page: 4450. / Major Professor: Robert Christopher Lacher. / Thesis (Ph.D.)--The Florida State University, 1990.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_78320 |
| Contributors | McCroan, Keith Duane., Florida State University |
| Source Sets | Florida State University |
| Language | English |
| Detected Language | English |
| Type | Text |
| Format | 182 p. |
| Rights | On campus use only. |
| Relation | Dissertation Abstracts International |
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