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R语言 RSAGA包 rsaga.fill.sinks()函数中文帮助文档(中英文对照)

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发表于 2012-9-28 21:18:18 | 显示全部楼层 |阅读模式
rsaga.fill.sinks(RSAGA)
rsaga.fill.sinks()所属R语言包:RSAGA

                                        Fill Sinks
                                         填写水槽

                                         译者:生物统计家园网 机器人LoveR

描述----------Description----------

Several methods for filling closed depressions in digital elevation models
填充封闭洼地,数字高程模型的几种方法


用法----------Usage----------


rsaga.fill.sinks(in.dem, out.dem, method = "planchon.darboux.2001",
    out.flowdir, out.wshed, minslope, ...)



参数----------Arguments----------

参数:in.dem
Input: digital elevation model (DEM) as SAGA grid file (default extension: .sgrd).
输入:数字高程模型(DEM)SAGA的网格文件(默认扩展名:.sgrd)。


参数:out.dem
Output: filled, depression-free DEM (SAGA grid file). Existing files will be overwritten!
抑郁症无输出:填充,的DEM(SAGA电网文件)。现有的文件将被覆盖!


参数:method
The depression filling algorithm to be used (character). One of "planchon.darboux.2001" (default), "wang.liu.2006", or "xxl.wang.liu.2006".
抑郁症填充算法(字符)。 "planchon.darboux.2001"(默认),"wang.liu.2006"或"xxl.wang.liu.2006"。


参数:out.flowdir
(only for "wang.liu.2001"): Optional output grid file for computed flow directions (see Notes).
(仅适用于"wang.liu.2001"):可选的输出网格文件计算的流动方向(见注)。


参数:out.wshed
(only for "wang.liu.2001"): Optional output grid file for watershed basins.
(仅适用于"wang.liu.2001"):可选的输出网格文件集水区。


参数:minslope
Minimum slope angle (in degree) preserved between adjacent grid cells (default value of 0.01 only for method="planchon.darboux.2001", otherwise no default).
最小坡度角(度)保存在相邻的网格单元0.01的method="planchon.darboux.2001",否则没有默认的(默认值)。


参数:...
Optional arguments to be passed to rsaga.geoprocessor, including the env RSAGA geoprocessing environment.
可选参数被传递给rsaga.geoprocessor,包括env RSAGAGEO处理环境。


Details

详细信息----------Details----------

This function bundles three SAGA modules for filling sinks using three different algorithms (method argument).
此功能捆绑使用三种不同的算法(method参数)填充汇SAGA模块。

"planchon.darboux.2001": The algorithm of Planchon and Darboux (2001) consists of increasing the elevation of pixels in closed depressions until the sink disappears and a mininum slope angle of minslope (default: 0.01 degree) is established.
"planchon.darboux.2001":算法的普兰琼和达布(2001年),直到接收器消失minslope(默认:0.01度和最低限度的坡角,增加像素的封闭洼地的海拔)被建立。

"wang.liu.2006": This module uses an algorithm proposed by Wang and Liu (2006) to identify and fill surface depressions in DEMs.   The method was enhanced to allow the creation of hydrologically sound elevation models, i.e. not only to fill the depressions but also to  preserve a downward slope along the flow path.  If desired, this  is accomplished by preserving a minimum slope gradient (and thus  elevation difference) between cells. This is the fully featured  version of the module creating a depression-free DEM, a flow path  grid and a grid with watershed basins. If you encounter problems  processing large data sets (e.g. LIDAR data) with this module  try the basic version (xxl.wang.lui.2006).
"wang.liu.2006":该模块采用了一种算法,王,刘(2006)提出的查明和填补数字高程模型的表面凹陷。的方法得到改善,允许创建的高程模型水文声音,即不仅填补洼地,但还保持一个向下的斜坡,沿着流动路径。如果需要的话,这是通过单元之间保留最小的坡度(及因此的高差)。这是全功能版本的模块创建一个抑郁症的DEM,流路网格和一个网格,集水区。如果你在处理大型数据集(如LIDAR数据),这个模块时遇到问题尝试的基本版本(xxl.wang.lui.2006)。

"xxl.wang.liu.2006": This modified algorithm after Wang and Liu (2006)
"xxl.wang.liu.2006":改进算法后,王,刘(2006)


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) a character vector with the module's console output.
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(默认值)字符向量与模块的控制台输出。

The function writes SAGA grid files containing of the depression-free
该函数将SAGA格档的抑郁症


注意----------Note----------

The flow directions are coded as 0 = north, 1 = northeast, 2 = east, ..., 7 = northwest.
编码为0 = 1 = 2 =东东北,...,7 =西北北部,流动方向。

If minslope=0, depressions will only be filled until a horizontal surface is established, which may not be helpful for hydrological
如果minslope=0,萧条将只被填充,直到建立一个水平面上,可能不会有帮助的水文


(作者)----------Author(s)----------


Alexander Brenning (R interface), Volker Wichmann (SAGA module)



参考文献----------References----------

A fast, simple and versatile algorithm to fill the depressions of digital elevation models. Catena 46: 159-176.
filling surface depressions in digital elevation models for  hydrologic analysis and modelling. International Journal of

参见----------See Also----------

rsaga.sink.removal, rsaga.sink.route.
rsaga.sink.removal,rsaga.sink.route。

转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。


注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
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