SimilarityTransformation-class(vec2dtransf)
SimilarityTransformation-class()所属R语言包:vec2dtransf
Class "SimilarityTransformation"
类“SimilarityTransformation”
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Class to define similarity transformations to be applied on sp
类定义相似变换的SP
类对象----------Objects from the Class----------
Objects can be created by calls to the function SimilarityTransformation.
可以创建对象调用的功能SimilarityTransformation的。
插槽----------Slots----------
controlPoints: Object of class "data.frame" containing control point coordinates arranged in four (4) columns: X source,
controlPoints:类的对象"data.frame"含控制点坐标安排在四(4)列:X源,
parameters: Object of class "numeric". A vector of four (4) parameters for representing the transformation, namely: a, b, c and d, where x' = ax + by + c
parameters:对象的类"numeric"。的向量的四(4)表示变换的参数,即:的A,B,c和d,其中x=斧+ + c的
residuals: Object of class "matrix". Only set if Least Squares is applied, i.e., if more than two (2) control points were provided. Residuals are the difference between transformed source
residuals:对象的类"matrix"。只有设置,如果最小二乘法,即,如果超过两(2)个控制点。残差之间的差异转化源
rmse: Object of class "numericOrNULL". Only set if Least Squares is applied, i.e., if more than two (2) control points were provided. Root Mean Square Error, useful when comparing two transformations. It measures the general deviation of transformed source coordinates with respect to target coordinates of control points. It has
rmse:对象的类"numericOrNULL"。只有设置,如果最小二乘法,即,如果超过两(2)个控制点。均方根误差,有用的,当比较两个转变。它测量的一般偏差转化源相对于目标的控制点的坐标的坐标。它有
扩展----------Extends----------
Class "Cartesian2DCoordinateTransformation", directly.
类"Cartesian2DCoordinateTransformation",直接。
方法----------Methods----------
signature(object = "SimilarityTransformation"): <br> Calculate
signature(object = "SimilarityTransformation"):参考计算
(作者)----------Author(s)----------
German Carrillo
参考文献----------References----------
GIS and surveying. Section 4.5.3. pp.113-115, 2008.
参见----------See Also----------
SimilarityTransformation
SimilarityTransformation
实例----------Examples----------
showClass("SimilarityTransformation")
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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