[vtkusers] How to keep ROI on screen using vtksplinewidget?

[Han Chunlei]

Dear VTKers:

 

Using vtksplinewidget, I can draw a ROI (region of interest) on an
image, and I can keep this information in memory, however I do not know
how to keep this ROI on screen when I  want to draw another one?  Thanks
in advance.

 

Regards

 

Chunlei

 

 

 

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