Hi,
I am trying to modify the colour map of an overlay in tksurfer.
Unfortunately, the changes I make to the View -> Configure -> Overlay
tcl/tk control are either ignored, or end in errors.
For example, if I left click on the histogram to set the lower
thresh hold, and then click 'coppy settings to layer', then the thresh
hold resets to the original value.
If I change the X Axis Range manually, for example by entering '6'
in the Max edit box, then I get something like this error whenever I
try to change something:
ERROR updating histo: impossible limits (min 6.73089 >= max 6.73089)
for axis "x"
I'm guessing that this is a bug --- that is, it's not that I am
misusing these controls.
I just want the brain to be coloured according to the whole range
of values in my w file --- ie, for the heat map, the minimum should
be the darkest blue and the maximum should be the brightest red (no
gray where I guess freesurfer assumes p>whatever --- this overlay is
not a statistical test). Any suggestions?
lloyd$ tksurfer --version
stable4
lloyd$ uname -a
Darwin 307-the-philosophers-foothold.local 9.6.0 Darwin Kernel Version
9.6.0: Mon Nov 24 17:37:00 PST 2008; root:xnu-1228.9.59~1/RELEASE_I386
i386
surfer: current subjects dir: /Users/lloyd/work/subjects
surfer: not in "scripts" dir ==> using cwd for session root
surfer: session root data dir ($session) set to:
surfer: /Users/lloyd
surfer: Reading header info from /Users/mathpunk/work/subjects/AAA03/
mri/T1.mgz
surfer: vertices=123084, faces=246164
Thanks!
L
PS --- a screenshot of these errors:
http://mathpunk.churchturing.org/overlay-problems.png
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