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Hello Yujing,
Thank you for your quick response!
When I run:
mris_calc -o rh.area.mid /path/to/subject/surf/rh.area add /path/to/subject/surf/rh.area.pial
I get the following error:
error: No such file or directory
error: read_signa(/Volumes/Beta/Carmen/t1/p03_8/p03_8/surf/I.001): could not open file
error: No such file or directory
error:
mris_calc: could not establish read access to '/Volumes/Beta/Carmen/t1/p03_8/p03_8/surf/rh.area'.
But when I run:
mri_info rh.area
I get the following output:
Volume information for rh.area
type: unknown
dimensions: 831 x 10015 x 25953
voxel sizes: -0.000000, -0.000000, nan
type: SHORT (4)
fov: 1016.473
dof: 1
xstart: 0.0, xend: 990983162970892849632569550308376576.0
ystart: -0.0, yend: 3079152361728581627851833344.0
zstart: -0.0, zend: -3815443229699337177012458129513775104.0
TR: 0.00 msec, TE: -0.00 msec, TI: 0.00 msec, flip angle: 0.00 degrees
nframes: 1
PhEncDir: UNKNOWN
FieldStrength: 0.000000
ras xform present
xform info: x_r = -1.0000, y_r = 0.0000, z_r = 0.0000, c_r = -18770011487391973376.0000
: x_a = 0.0000, y_a = 0.0000, z_a = 1.0000, c_a = nan
: x_s = 0.0000, y_s = -1.0000, z_s = 0.0000, c_s = -0.0000
Orientation : LIA
Primary Slice Direction: coronal
voxel to ras transform:
0.0000 -0.0000 nan nan
-0.0000 -0.0000 nan nan
-0.0000 0.0000 nan nan
0.0000 0.0000 0.0000 1.0000
voxel-to-ras determinant nan
ras to voxel transform:
error: mat = NULL!
It appears that this is where the issue is coming from. Any ideas on why this is occurring? The brain is normal and has good rh.white and rh.pial surfaces.
Many thanks,
Taylor