The valley extraction based on the hexagonal grid-based DEM
Valley extraction from grid-based DEM depends on the geometrical shape, spatial tessellation and placement of grids. Traditional researches ignore that the shape of grid can influence the neighborhood relationship, impacting on the result of valley extraction. The traditional D8 algorithm is based o...
| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Surveying and Mapping Press
2019-06-01
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| Series: | Acta Geodaetica et Cartographica Sinica |
| Subjects: | |
| Online Access: | http://html.rhhz.net/CHXB/html/2019-6-780.htm |