Defining ROI interactively

[M.Schrijver at el.utwente.nl]

Hello Olivier,

you can try one of my first Tcl script (so, don't bother about
efficiency, style etc. please). Hope it helps .....

Marc 


 
ir. Marc Schrijver
Chair of Signals & Systems
Faculty of Electrical Engineering
University of Twente
The Netherlands

> ----------
> From: 	Olivier Coulon[SMTP:o.coulon at cs.ucl.ac.uk]
> Sent: 	Tuesday, March 14, 2000 11:06 AM
> To: 	vtk user list
> Subject: 	Defining ROI interactively
> 
> <<File: o.coulon.vcf>>
> 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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