AffineTransformation {vec2dtransf}

Create an AffineTransformation object

Description

Creates objects of class AffineTransformation from control points or directly from parameters

Usage

AffineTransformation(controlPoints = data.frame(), 
    parameters = numeric())

Arguments

controlPoints

data.frame containing control point coordinates arranged in four (4) columns: X source, Y source, X target, Y target.

parameters

A vector of six (6) parameters for representing the transformation, namely: a, b, c, d, e and f, where
x' = ax + by + c
y' = dx + ey + f

Details

Both controlPoints and parameters are optional, but one has to be given. In the case of the latter, the name of the argument has to be specified, e.g., AffineTransformation(parameters=c(1,2,3,4,5,6))

Value

Object of the class AffineTransformation

Author(s)

German Carrillo

See Also

AffineTransformation-class

Examples

at <- AffineTransformation(parameters=c(1,2,3,4,5,6))