rsaga.local.morphometry(RSAGA)
rsaga.local.morphometry()所属R语言包:RSAGA
Local Morphometry
本地形态计量学
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Calculates local morphometric terrain attributes
计算当地的形态测量地形属性
用法----------Usage----------
rsaga.local.morphometry(in.dem, out.slope, out.aspect, out.curv,
out.hcurv, out.vcurv, method = "poly2zevenbergen",
env = rsaga.env(), ...)
rsaga.slope(in.dem, out.slope, method = "poly2zevenbergen", ...)
rsaga.aspect(in.dem, out.aspect, method = "poly2zevenbergen", ...)
rsaga.curvature(in.dem, out.curv, method = "poly2zevenbergen", ...)
rsaga.plan.curvature(in.dem, out.hcurv, method = "poly2zevenbergen", ...)
rsaga.profile.curvature(in.dem, out.vcurv, method = "poly2zevenbergen", ...)
参数----------Arguments----------
参数:in.dem
input: digital elevation model (DEM) as SAGA grid file (default file extension: .sgrd)
输入:数字高程模型(DEM)SAGA的网格文件(默认文件扩展名:.sgrd)
参数:out.slope
optional output: slope (in radian)
可选的输出斜率(弧度)
参数:out.aspect
optional output: aspect (in radian; north=0, clockwise angles)
可选的输出方面(以弧度,北= 0,顺时针方向的角度)
参数:out.curv
optional output: curvature
可选的输出:曲率
参数:out.hcurv
optional output: horizontal curvature (plan curvature)
可选的输出水平曲率(曲率计划)
参数:out.vcurv
optional output: vertical curvature (profile curvature)
可选的输出:垂直曲率(轮廓曲率)
参数:method
character or numeric: algorithm (see References): Maximum Slope - Travis et al. (1975) ("maxslope", or 0), Max. Triangle Slope - Tarboton (1997) ("maxtriangleslope", or 1), Least Squares Fit Plane - Costa-Cabral and Burgess (1996) ("lsqfitplane", or 2), Fit 2nd Degree Polynomial - Bauer et al. (1985) ("poly2bauer", or 3), Fit 2nd Degree Polynomial - Heerdegen and Beran (1982) ("poly2heerdegen", or 4), default: Fit 2nd Degree Polynomial - Zevenbergen and Thorne (1987) ("poly2zevenbergen", or 5), Fit 3rd Degree Polynomial - Haralick (1983) ("poly3haralick", or 6).
字符或数字算法(请参阅参考资料):最大坡度 - 特拉维斯等。 (1975)("maxslope",或0),最大。三角坡 - Tarboton(1997)("maxtriangleslope",或1),最小二乘拟合平面 - 科斯塔·卡布拉尔和Burgess(1996)("lsqfitplane",或2),适合第2次多项式 - 鲍尔等人。 (1985)("poly2bauer",或3),适合第二次多项式 - Heerdegen和贝兰(1982)("poly2heerdegen",或4),默认:匀称第二次多项式 - 泽文伯根和Thorne(1987)( "poly2zevenbergen",或5),符合第三次多项式 - Haralick(1983)("poly3haralick",或6)。
参数:env
list, setting up a SAGA geoprocessing environment as created by rsaga.env
名单,设置的SAGAGEO处理环境,由rsaga.env创建
参数:...
further arguments to rsaga.geoprocessor
进一步的论据rsaga.geoprocessor
值----------Value----------
The type of object returned depends on the intern argument passed to the rsaga.geoprocessor. For intern=FALSE it is a numerical error code (0: success), or otherwise (default)
返回的对象的类型取决于intern参数传递的rsaga.geoprocessor。对于intern=FALSE它是一个数字错误代码(0:成功),或以其他方式(默认)
注意----------Note----------
This function uses module 0 from the SAGA library ta_morphometry.
此功能模块0的的SAGA库ta_morphometry中。
(作者)----------Author(s)----------
Alexander Brenning (R interface), Olaf Conrad (SAGA module)
参考文献----------References----------
a property of the DEM. Computers and Geosciences. 24 (4): 315-323.
Travis, M.R., Elsner, G.H., Iverson, W.D., Johnson, C.G. (1975): VIEWIT: computation of seen areas, slope, and aspect for land-use planning. USDA F.S. Gen. Tech. Rep. PSW-11/1975, 70 p. Berkeley, California, U.S.A.
Tarboton, D.G. (1997): A new method for the determination of flow directions and upslope areas in grid digital elevation models. Water Ressources Research, 33(2): 309-319.
Beasley, D.B., Huggins, L.F. (1982): ANSWERS: User's manual. U.S. EPA-905/9-82-001, Chicago, IL, 54 pp.
Networks (DEMON): a model of flow over hillslopes for computation of contributing and dispersal areas. Water Resources Research, 30(6): 1681-1692.
Bauer, J., Rohdenburg, H., Bork, H.-R. (1985): Ein Digitales Reliefmodell als Vorraussetzung fuer ein deterministisches Modell der Wasser- und Stoff-Fluesse. Landschaftsgenese und Landschaftsoekologie, H. 10, Parameteraufbereitung fuer deterministische Gebiets-Wassermodelle, Grundlagenarbeiten zur Analyse von Agrar-Oekosystemen, eds.: Bork, H.-R., Rohdenburg, H., p. 1-15.
land surface curvature. Journal of Hydrology, 57.
surface topography. Earth Surface Processes and Landforms, 12: 47-56.
Haralick, R.M. (1983): Ridge and valley detection on digital images. Computer Vision, Graphics and Image Processing, 22(1): 28-38.
参见----------See Also----------
rsaga.parallel.processing, rsaga.geoprocessor,
rsaga.parallel.processing,rsaga.geoprocessor,
实例----------Examples----------
## Not run: [#不运行:]
# a simple slope algorithm:[一个简单的斜率算法:]
rsaga.slope("lican.sgrd","slope","maxslope")
# same for ASCII grids (default extension .asc):[相同的ASCII网格(默认扩展名。递增):]
rsaga.esri.wrapper(rsaga.slope,in.dem="lican",out.slope="slope",method="maxslope")
## End(Not run)[#(不执行)]
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注:
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