Thanks for your previous reply. I’ve been working on recreating views surgeons expect and this has mostly been successful using existing Slicer functionality. Now I’m trying to implement visualizations that surgeons are not used to seeing in conventional procedures but are useful in navigated procedures.
Specifically, I would like to find out what’s the easiest way to display a dynamic trajectory (just a line) going from the tool tip (which is a changing linear transform) to a predefined target (which could be a model or markup fiducial). VisuaLine (https://www.slicer.org/wiki/Documentation/4.3/Modules/VisuaLine) seemed like it could do this but it’s not in Slicer 4.10, and as you mentioned PathExplorer is not being actively maintained. I could use PathExplorer to create a tool fiducial and a target fiducial and an annotation trajectory, and then transform the tool fiducial by the tracked tool’s transform, but the trajectory won’t update unless the transform is hardened. Is there a better way?