[vtkusers] Draw a simple spline

Naxo Nuñez naxola at hotmail.com
Tue Sep 18 07:58:19 EDT 2012

I would like to draw a spline in a qvtkwidget, but without preset points, just during the interaction.
What I mean is just the user clicks a button where to start drawing a spline, and then begin the drawing by clicking on the qvtkwidget.
Then when finished, just double click or anything else to stop drawing.
Where should I start with?? How can I handle a spline?
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