Hello,

I am working in Image Guided Therapy and I would like to use MITK to
navigate a real model from which I have a stl 3D model to load in MITK. I
am trying to perform the navigation tutorial
<http://docs.mitk.org/2016.03/org_igttrackinglab.html> but from step
"Configuration" you jump to "Initial Registration" and here I am missing
the Tool Calibration step. You have some indications to use the IGT
Navigation Tool Calibration
<http://docs.mitk.org/nightly/org_mitk_views_calibrationtoolmanager.html>,
but if I don't have any tool already calibrated I have to use the Manual
Calibration, is that right? So, to set the tip of a pointer I would only
need a translation transformation (an offset):

- How should I know where exactly the tip of the pointer is? Because I see
I have to move the translation sidebars and I move a red point in the scene
(and I compare with the green point which is the one I am tracking).
- Why I can't put decimals in the translation? I can only set integers and
it is not accurate, I am sure there is a way to change that...
- Once I set the offset (I imagine I have a good offset), how could I apply
this offset to the tool all the time? I see that I can "Save the Calibrated
Navigation Tool"  but what I am suppose to do then? charge that new tool
when connecting the tracker?

I am a bit lost and I do not find documentation about all this, any help
would be very appreciated!
I would be very gratefull if someone that has navigated using MITK tells me
his/her experience :)

Thank you very much in advance!

Best regards,

Rocío López
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