Perform Elastix Transform on 3D Points — elastix

This function applies an Elastix spatial transform to a set of 3D points.

Usage

elastix_xform(points, transform_file, copy_files = c(), return_logs = FALSE)

Arguments

points: A matrix with 3 columns or a data frame with x, y, z columns representing 3D points.
transform_file: Path to the Elastix transform file, usually a .txt file, usually a .txt file.
copy_files: Vector of additional file paths to copy to the temporary directory.
return_logs: Logical, if TRUE, returns the Elastix log instead of transformed points.

Value

A matrix of transformed 3D points, or Elastix logs if return_logs is TRUE.

Details

This function requires Elastix to be installed and added to the system PATH. It creates a temporary directory for processing, applies the Elastix transform, and cleans up afterwards.

Examples

if (FALSE) { # \dontrun{
points <- matrix(rnorm(30), ncol = 3)
transformed_points <- elastix_xform(points, "path/to/transform.txt")
} # }