[vtkusers] Find Edge between Two Points

[Katya]

I tried to follow the example below to segment an object from points that a
user selects along the boundary. 
http://www.na-mic.org/svn/Slicer3-lib-mirrors/trunk/Insight/Testing/Code/BasicFilters/itkExtractOrthogonalSwath2DImageFilterTest.cxx

But I got weird results... As you can see on the images, I selected the
boundary of the coin, and the result image is transformed. Why is it
transformed? How can I connect my points along the boundary?

http://vtk.1045678.n5.nabble.com/file/n5714808/image_test.png 
http://vtk.1045678.n5.nabble.com/file/n5714808/segmentation_result.png 

Thanks,
Katya

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