trans {neuroim2} | R Documentation |
Extract image coordinate transformation
Description
Extract image coordinate transformation
Get transformation matrix
Usage
trans(x)
## S4 method for signature 'MetaInfo'
trans(x)
## S4 method for signature 'NeuroObj'
trans(x)
## S4 method for signature 'NeuroSpace'
trans(x)
Arguments
x |
an object with a transformation |
Details
This function returns a transformation that can be used to go from "grid coordinates" to "real world coordinates" in millimeters.
see NeuroSpace
Value
A numeric 4x4 matrix that maps from grid coordinates to real-world coordinates.
Examples
bspace <- NeuroSpace(c(10,10,10), c(2,2,2))
trans(bspace)
all.equal(dim(trans(bspace)), c(4,4))
[Package neuroim2 version 0.8.1 Index]