xtk/X — pull request #147 by adrew0809 (2014-03-25 17:54:42+00:00)
Title: Fixes alignment of DICOM data due to failure to round

We should offset into data by integer multiple of the slice size, but `_distance_position` can be a non-integer
due to arithmetic precision in the calculation when ordering by `image_position_patient`. This led to misaligned volume slices. The simple fix ensures we multiply the slice size by an integer.