[MINC-users] Surface Segmentation with Display

[Robert D. Vincent]

Hi Andrew,

Sorry for the delay in responding.

Unfortunately, the current implementation of surface segmentation does not
work with integer labels like the volumetric labeling.. It allows you to
paint colors on the surface on a number of polygons under the mouse cursor.
Once you've done this, you can save the colored image. I'm not certain what
the intended workflow or even the intended purpose. It would be fairly easy
to add support for integer labeling of the surface similar to what is
currently done in the volume. There are already provisions to allow you to
load, display, and save per-vertex data, so it's just a question of making
it possible to create and edit the vertex data.

Email me directly if you want to discuss and perhaps we can make something
you'll find useful.

    -bert

On Wed, Apr 4, 2018 at 11:35 AM, Andrew Wood <andrew at biospective.com> wrote:

> Hi all,
>
> Is thee a tutorial out there that shows how to operate Display's surface
> segmentation capabilities? I've been doing a workflow that is probably more
> cumbersome than it ought to be:
>
> 1) load the surface object and volumetric labels
> 2) paint on the volume
> 3) intersect the surface with the volumetric labels
> 4) If the surface segmentation looks good, then great; else go back to 2.
>
> I see that Display has surface segmentation features, but I can't figure
> out how to use them. The end goal is to generate per-vertex integer labels,
> either directly written into the .obj file (to be externally extracted to a
> .txt file) or saved out of Display directly.
>
> Thanks,
> Andrew
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