[vtkusers] Float to Int

[Ali Calvert]

Hi all, i'm having a bit of difficulty converting my texture coordinates (as
a float from 0 -> 1) to a coordinate (as an integer from 0 - > size of
image)  My current method simply floors the float, i.e. 0.8983 would be a 0,
however this isn't very accurate as it should be a 1.

Can anybody help me please?

Also if there is a better way of doing this rather than rounding, i would
appreciate any comments.

Thank you for your time.
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