[vtkusers] OK so does ANYONE use the vtkImageTracerWidget?

Mark Wyszomierski markww at gmail.com
Fri Nov 2 11:15:34 EDT 2007


I used the tracer widget for a real application. I can get the code
out and try making a simple example for you. I did the same exact
thing you're looking to do (after much agony),

Mark

On 11/2/07, kent williams <nkwmailinglists at gmail.com> wrote:
> A couple of days ago, I posted a note asking about image tracing using
> vtkImageTracerWidget.  I guess it was too long or too speculative or
> something because I got no response.
>
> I'm not complaining, mind you.  I know support from peers and
> developers is voluntary.
>
> But since it didn't get any response let me ask a different question:
> Has anyone use the vtkImageTracerWidget for any real application?
>
> If the answer is no, what did you end up doing to implement tracing?
>
> Right now, I've gotten as far as this:
>
> 1. Load a 3D Image.
> 2. Enable tracing. Trace on that slice
> 3. When I switch slices, save the traced points
> 4. When I switch back to a slice I've already traced, restore the saved points.
>
> What isn't happening right now: If I switch to an untraced slice, I
> call InitializeHandles() with a zero length set of points, but this
> doesn't in fact get rid of the currently visualized trace.
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