[IGSTK-Users] tracker tool disappears

[Luca Ramundo]

Hi all, 
I'm working with a IGSTK application.. I use a Vicra Tracker and only one tracker tool which I represent in four quadrants
like a cylinder with a sphere (like Needle Biopsy Example). My problem is that after few minutes the needle disappears:
I dont't view the cylinder and the sphere though the automatic reslicing continue to works fine, as if the needle had 
become invisible (and does not appear). why? i thought it is a representation problem for example because time expires but I'm not
sure and I don't know why this happens. Who can help me? 

I just noted that happens in your needle application example, too.
Thanks a lot,
Luca


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