[vtkusers] Write a PolygonPolydata

[Nens]

Hi,
Sorry, i am a recent french developper, so i try to be explicit but it
doesn't work obviously.

I want this :
 - In the user interface, create, in real time, a mask for the image of the
qvtkwidget.
   User create the mask by clicking on the qVtkWidget in order to form a
polygon. After each click, we show him the current polygon that he form.

 - Save a black and white png image file of the mask in the hard drive. The
white part in the polygon that user create. The background (black) have
dimension of the image.

Here my current test project :
main.cpp <http://vtk.1045678.n5.nabble.com/file/n5725528/main.cpp>  
mainwindowmask.cpp
<http://vtk.1045678.n5.nabble.com/file/n5725528/mainwindowmask.cpp>  
mainwindowmask.h
<http://vtk.1045678.n5.nabble.com/file/n5725528/mainwindowmask.h>  
test_mask.pro <http://vtk.1045678.n5.nabble.com/file/n5725528/test_mask.pro>  
mainwindowmask.ui
<http://vtk.1045678.n5.nabble.com/file/n5725528/mainwindowmask.ui>  

Ask me questions if you need.
Thank you.




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