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VISUAL and SLOPE: perspective and quantitative representation of digital terrain models.Author(s): R.J. McGaughey; R.H. Twito
Source: Gen. Tech. Rep. PNW-GTR-214. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 26 p
Publication Series: General Technical Report (GTR)
Station: Pacific Northwest Research Station
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DescriptionTwo computer programs to help timber-harvest planners evaluate terrain for logging operations are presented. The first program, VISUAL, produces three-dimensional perspectives of a digital terrain model. The second, SLOPE, produces map-scaled overlays delineating areas of equal slope, aspect, or elevation. Both programs help planners familiarize themselves with new terrain and obtain a general feel for the land. Included are descriptions of operating procedures, descriptions of major algorithms, suggested applications, and limitations. Guides for the programs are available from the authors.
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CitationMcGaughey, R.J.; Twito, R.H. 1988. VISUAL and SLOPE: perspective and quantitative representation of digital terrain models. Gen. Tech. Rep. PNW-GTR-214. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 26 p
KeywordsLogging operations analysis/design, topography, timber harvest planning, computer programs, programing
- ROUTES: a computer program for preliminary route location.
- The HIGHLEAD program: locating and designing highlead harvest units by using digital terrain models.
- VIEWIT: computation of seen areas, slope, and aspect for land-use planning
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