mghheader.centervoxelRAS.from.firstvoxelRAS: Compute RAS coords of center voxel.

In freesurferformats: Read and Write 'FreeSurfer' Neuroimaging File Formats

Compute RAS coords of center voxel.

Description

Compute RAS coords of center voxel.

Usage

mghheader.centervoxelRAS.from.firstvoxelRAS(header, first_voxel_RAS)

Arguments

header	Header of the mgh datastructure, as returned by read.fs.mgh. The c_r, c_a and c_s values in the header do not matter of course, they are what is computed by this function.
first_voxel_RAS	numerical vector of length 3, the RAS coordinate of the first voxel in the volume. The first voxel is the voxel with ⁠CRS=1,1,1⁠ in R, or ⁠CRS=0,0,0⁠ in C/FreeSurfer. This value is also known as P0 RAS.

Value

numerical vector of length 3, the RAS coordinate of the center voxel. Also known as CRAS or center RAS.

freesurferformats documentation built on Sept. 8, 2026, 5:08 p.m.