I will be doing most of the same things you talked about, but I haven't gotten into it yet. As a general course when I want to greatly extend something from VTK, I edit the existing class making everything non-trivial virtual then extend the class. This allows me to keep up to date with VTK fairly easily. I haven't looked at image tracer widget yet though. The application I need it for will be my first Qt application, and I'm trying to design the event model first.
<br><br>The application this program is replacing strictly marked points, leaving the construction of lines and surfaces to post-processing. This approach has proved burdensome, and we would like to delineate surfaces (possibly with splines rather than lines) in the future.
<br><br><div class="gmail_quote">What is your time frame for this application? I will probably have our lab's solution in a month or so.<br><br>On Nov 2, 2007 8:01 AM, kent williams <<a href="mailto:nkwmailinglists@gmail.com">
nkwmailinglists@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">A couple of days ago, I posted a note asking about image tracing using
<br>vtkImageTracerWidget. I guess it was too long or too speculative or<br>something because I got no response.<br><br>I'm not complaining, mind you. I know support from peers and<br>developers is voluntary.<br><br>
But since it didn't get any response let me ask a different question:<br>Has anyone use the vtkImageTracerWidget for any real application?<br><br>If the answer is no, what did you end up doing to implement tracing?<br>
<br>Right now, I've gotten as far as this:<br><br>1. Load a 3D Image.<br>2. Enable tracing. Trace on that slice<br>3. When I switch slices, save the traced points<br>4. When I switch back to a slice I've already traced, restore the saved points.
<br><br>What isn't happening right now: If I switch to an untraced slice, I<br>call InitializeHandles() with a zero length set of points, but this<br>doesn't in fact get rid of the currently visualized trace.<br>_______________________________________________
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