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pieper authored
Avoid a degenerate transform by checking for null column and replacing it with the cross product. This can happen when the ijkToRAS transform is not uniquely aligned with the cardinal axes and the algorithm to determine the correspondence between volume axes and patient axes fails. git-svn-id: http://svn.slicer.org/Slicer4/trunk@21564 3bd1e089-480b-0410-8dfb-8563597acbee
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