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Comparison of existing methods for building triangular irregular network, models of terrain from grid digital elevation models
- Source :
- International journal of geographical information systems. 5:267-285
- Publication Year :
- 1991
- Publisher :
- Informa UK Limited, 1991.
-
Abstract
- Triangulated irregular networks (TINs) are increasingly popular for their efficiency in data storage and their ability to accommodate irregularly spaced elevation points for many applications of geographical information systems. This paper reviews and evaluates various methods for extracting TINs from dense digital elevation models (DEMs) on a sample DEM. Both structural and statistical comparisons show that the methods perform with different rates of success in different settings. Users of DEM to TIN conversion methods should be aware of the strengths and weaknesses of the methods in addition to their own purposes before conducting the conversion.
- Subjects :
- business.industry
Geography, Planning and Development
Elevation
Sample (statistics)
Terrain
Library and Information Sciences
computer.software_genre
Grid
Triangulated irregular network
Geography
Computer data storage
Information system
General Earth and Planetary Sciences
Data mining
Digital elevation model
business
computer
Information Systems
Subjects
Details
- ISSN :
- 02693798
- Volume :
- 5
- Database :
- OpenAIRE
- Journal :
- International journal of geographical information systems
- Accession number :
- edsair.doi...........7e6862bc9960a9380d6cff0185fd7803