downLog-class(sampSurf)
downLog-class()所属R语言包：sampSurf
Class "downLog": Representation of Downed Logs
“downLog级”：表示被击落的log
译者：生物统计家园网 机器人LoveR
描述----------Description----------
A subclass of virtual class “Stem” that can be used to represent downed coarse woody debris in the form of something resembling a log. The class provides for creation and graphical display of “downLog” objects.
虚拟类的子类“Stem”，可以用来表示被击落的粗木质残体的形式，类似的log。这个类提供了用于创建和图形显示的“downLog”对象。
Detail examples and information concerning this class is found in “The Stem Class” vignette, which should be consulted for more details on creating and using objects from this class.
在“干类”的小插曲，应咨询有关详细信息，创建和使用这个类的对象从详细的示例和信息，关于这个类被发现。
类对象----------Objects from the Class----------
Objects can be created by calls of the form new("downLog", ...). However, this is not recommended. The object has a number of required slots that can be somewhat complex to calculate. Therefore, a constructor function downLog has been provided that will make the desired object with the correct values for the slots. It is strongly recommended that one use this generic's methods to create the
可以创建对象通过调用的形式new("downLog", ...)。然而，这是不推荐的。的对象有许多需要的插槽，可以计算有点复杂。因此，一个构造函数downLog已提供正确的价值观的插槽，这将使所需的对象。强烈建议使用这个通用的方法来创建
插槽----------Slots----------
Please note that all diameters below are presumed to be in the same units as length, i.e., meters for “metric”, and feet for “English” units.
请注意，所有直径小于被推定为是在同一个单位长度，即米，为“公制”，和“英语”units脚。
In addition to the slots provided by the virtual superclass “Stem”, the following slots are represented...
除了虚拟超类“Stem”所提供的时隙中，表示以下的插槽...
buttDiam: Object of class "numeric": the log
buttDiam：对象的类"numeric"log：
topDiam: Object of class "numeric": The
topDiam：对象类"numeric"：
logLen: Object of class "numeric": The log
logLen：对象的类"numeric"log：
logAngle: Object of class "numeric": An angle for the log's position established from the center of the log relative to its "needle." The center of the log is equidistant from both ends along the established needle. On a straight log, the needle would correspond to the pith if everything were
logAngle：类对象的"numeric"：沿着已建立的角度log的位置确立从log的中心相对于它的“针”的log的中心是从两端等距离针。直log，对应的髓针如果一切
solidType: Object of class "numericNULL": The form parameter in the simple taper and volume equation presented in Van Deusen (1990)
solidType：类的对象"numericNULL"：简单的锥形的形式参数和体积公式在范Deusen（1990）
logVol: Object of class "numeric": The log's
logVol：类的对象"numeric"：log
surfaceArea: Object of class "numeric": Total
surfaceArea：对象类"numeric"：总
coverageArea: Object of class "numeric": Total
coverageArea：对象类"numeric"：总
biomass: Object of class "numeric": Total log biomass. This will be NA if no conversion was specified at
biomass类"numeric"：总计log生物质能的对象。这将是NA转换，如果没有被指定
carbon: Object of class "numeric": Total log carbon content. This will be NA if no conversion was
carbon：类"numeric"：总的log碳含量的对象。这将是NA如果没有转化率
conversions: Object of class "numeric": A vector with names c('volumeToWeight','weightToCarbon') specifying the conversion factors for woody biomass and carbon
conversions类的对象"numeric"：一个向量，其名称c('volumeToWeight','weightToCarbon')指定的转换系数为木本生物量和碳
taper: Object of class "data.frame": The log's taper, either as specified from measurements, or as generated via
taper类的对象"data.frame"：log的锥度，无论是作为指定的测量，或产生通过
profile: Object of class "data.frame": The log profile as generated from the taper. The log is assumed to be
profile类的对象"data.frame"：log文件作为产生的锥度。该log被假定为
rotLog: Object of class "matrix": A rotated and translated version of profile using logAngle and
rotLog：对象类"matrix"：旋转和翻译版本的profile使用logAngle
spLog: Object of class "SpatialPolygons": A SpatialPolygons representation of rotLog via the
spLog：通过类的对象"SpatialPolygons"：ASpatialPolygons表示rotLog
slNeedleAxis: Object of class "SpatialLines": A fully transformed (rotated and translated) representation of the needle for the log as a SpatialLines object
slNeedleAxis类的对象"SpatialLines"：完全变换（旋转和平移）表示针的log作为一个SpatialLines对象
扩展----------Extends----------
Class "Stem", directly.
类"Stem"，直接。
方法----------Methods----------
bbox signature(obj = "downLog"): Returns the bounding
BBOX signature(obj = "downLog")：返回的边界
chainSawIZ signature(downLog = "downLog", plotRadius =
chainSawIZ <CODE>签名（downLog =“downLog”，plotRadius =
plot signature(x = "downLog", y = "missing"):
图signature(x = "downLog", y = "missing")：
sausageIZ signature(downLog = "downLog", plotRadius =
sausageIZ <CODE>签名（downLog =“downLog”，plotRadius =
standUpIZ signature(downLog = "downLog", plotRadius =
standUpIZ <CODE>签名（downLog =“downLog”，plotRadius =
summary signature(object = "downLog"): Summary of the
总结signature(object = "downLog")：总结
（作者）----------Author(s)----------
Jeffrey H. Gove
参考文献----------References----------
point relascope sampling for unbiased volume estimation of downed coarse woody debris. Forestry 78:417–431. <br> Gove, J. H. and Van Deusen, P. C. 2011. On fixed-area plot sampling for downed coarse woody debris. Forestry Forestry 84:109–117.<br> Van Deusen, P.C. 1990. Critical height versus importance sampling for log volume: does critical height prevail? Forest Science<br> 36(4):930–938.
参见----------See Also----------
"Stem", "standingTree", "StemContainer"
“Stem”，“standingTree”，“StemContainer”
实例----------Examples----------
showClass("downLog")
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。
|
发表于 2012-9-29 21:58:05
