Defining ROI interactively

Olivier Coulon o.coulon at cs.ucl.ac.uk
Tue Mar 14 05:06:26 EST 2000


Dear VTK users,

I have a small image display Tcl application that uses
vtkTkImageViewerWidget. I want the user to be able to define a ROI in
the image interactively, some kind of 'crop', by clicking one of the
corner of the ROI and dragging to the other one. Has anybody done
something like that ? In particular, I don't know how to do the 'drag'
operation while displaying the contour of the ROI.

Any help would be appreciated, thanks in advance.

- Olivier


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