[slicer-users] measurement module

Nicole Aucoin nicole at bwh.harvard.edu
Thu Sep 16 10:23:39 EDT 2010


I'm using the VTK 3D widgets as is to display 3D angle measurements.  
You can forward your question to the VTK Developers list for a better 
For the 3D distance measurements, I'm using the VTK method 
vtkMath::Distance2BetweenPoints which you can see defined here:
(the widget/representation also uses this method, but I call it 
explicitly to update the distance annotation)


Madan Rao wrote:
> Hello,
> What are the trigonometric and or Napier functions involved in
> angle and distance measurement modules?
> Couldn't find it in module info or source code.
> AM Mohan Rao
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