[Mristudio-users] a tricky option "AND"

[Igor Yakushev]

Dear DTI-Studio Experts,

1) i choose the option "AND" and draw 2 ROIs along the length of a track 
of interest -> i get no track between the ROIs
2) i choose the option "OR" and draw one ROI -> i get multiple tracks;
A. then i choose "AND" and draw one ROI within the mixture of tracks -> 
the number of tracks becomes reduced.
B. then i choose "AND" and draw one ROI beyond the mixture of tracks -> 
all tracks disappear.

Is it the expected sequence of phenomena? If yes, I conclude that the 
option "AND" works only for 2 ROIs, which are drawn within the already 
defined (visualized) mixture of tracks (obtained using e.g. the option 
"OR") to separate the track of interest. Is it right?

Thanks,
Igor