Cognex DataMan Communications And Programming Manual page 40

Property
axialNonUniformity
Type 1D Standards
Metric
40
DataMan Application Development
2D Standards
ISO/IEC 15415
(DataMatrix, QR,
DotCode), AIM/DPM
ISO/IEC TR-29158
(DataMatrix, QR)
Description
The axial non-
uniformity. Axial non-
uniformity is a
measure of the
difference in spacing
of grid cells along
each axis. In the best
case, this value will
be zero, indicating
that centers of the grid
cells are evenly
spaced in all
directions. A poor
axial non-uniformity
might indicate
problems in the
printing process for
the code, which
causes the code to
appear stretched out
or compressed.