AffineTransformation-class(vec2dtransf)
AffineTransformation-class()所属R语言包:vec2dtransf
Class "AffineTransformation"
类“AffineTransformation”
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Class to define affine transformations to be applied on sp objects. Affine transformations can rotate, shift, scale (even applying different
适用于SP对象类来定义仿射变换。仿射变换可以旋转,移位,规模(即使采用不同的
类对象----------Objects from the Class----------
Objects can be created by calls to the function AffineTransformation.
可以创建对象调用的功能AffineTransformation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 six (6) parameters for representing the transformation, namely: a, b, c, d, e and f, where <br> x' = ax + by + c <br>
parameters:对象的类"numeric"。六(6)参数的转变,即:A,B,C,D,E和F,,参考X= AX + + C参考的矢量
residuals: Object of class "matrix". Only set if Least Squares is applied, i.e., if more than three (3) control points were provided. Residuals are the difference between transformed source
residuals:对象的类"matrix"。只有如果最小二乘法,即,如果超过三(3)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 three (3) 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"。只有如果最小二乘法,即,如果超过三(3)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----------
calculateParameters signature(object = "AffineTransformation"):<br>
calculateParameterssignature(object = "AffineTransformation"):参考
(作者)----------Author(s)----------
German Carrillo
参考文献----------References----------
GIS and surveying. Section 4.5.4. pp.115-117, 2008.
参见----------See Also----------
AffineTransformation
AffineTransformation
实例----------Examples----------
showClass("AffineTransformation")
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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