On Dec 16, 2012, at 3:03 PM, Colin Reveley <[email protected]> wrote:

> Hi - 
> 
> I want to make a figure like the attached, which is from lewis + van essen 
> 2000.
> 
> the difference is that my data is all MRI (it's FSL diffusion tracking), but 
> I want to present it exactly like this.
> 
> clearly producing the appropriate coronal sections isn't hard, and neither is 
> presenting the surface with the "tracer labels" (tracking intersections) on 
> it as a metric.
> 
> What's a tad harder is accurately drawing the lines that correspond to the 
> coronal sections (the little lines a-h above and below the surface.

Hmmm.  These are really lines or planes.  You can certainly produce one of them 
using the features in the D/C: Surface Miscellaneous page.  And you can 
generate uniformly spaced tick marks using the same, but that's not what you 
want.  You want lines corresponding to your slices.

I can think of two very inelegant solutions:

* Generate volumetric planes at the slices you specify (i.e., zeroes everywhere 
except the slices corresponding to your slices), and then generate a surface 
from that segmentation.  (Connect them along the y axis, if needed, to make 
them all be one surface.)  Load this as a VTK over your surface.  I'm trying 
not to imagine how ugly this might look.

* Generate separate captures for each slice level, modifying the cartesian axis 
offset at each one, and then frankenstein them together somehow.

> given that the data is all in caret is there some way to use caret to do this?
> 
> maybe foci? I've actually never used foci. perhaps that's what I want. 

You want lines/planes -- not points, though you could use foci to generate 
markers along a constant z plane, and then photoshop more visible lines at your 
too-hard-to-see foci marks.

> 
> not really sure how to make one or make it do that for me.
> 
> it's a big help if I can at least semi-automate the section/surface 
> relationship. I'll be making a ton of figs like this now and in the future. 
> and changing my mind on what is the best slice to show etc all the time.
> 
> help appreciated
> 
> Colin 
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