[Insight-users] Modify a ball Structuring Element

[Irene Gonzálvez García]

Dear all insight-users,
I would like to create a Binary Ball Structuring element with 
N-dimensions. If we suppose that we have a 2D structuring element with 
radius equals to 1 (size = 3x3),  I would like to make zero the first 
column (page 722, itkSoftwareGuide). Basically, we have always a odd 
number of columns. In the middle one, the center of the Structuring 
Element is located.I would like to make zero all columns which are in 
the left side of the central column. I tried to modify part of the code 
in itkBinaryBallStructuringElement but I don't get the expected result. 
When I write sfi.GoToBegin(), I think the pixel which is modified is the 
central one, not the upper-left pixel.

Please, could you give me any suggestions how to do it?
Best regards
Irene