Allen-Bradley 1756-HYD02 User Manual page 131

Geometries with orientation support Chapter 4
The Ry Mirror Image Point shown on 3D space with fixed angle rotations.
[0,0,0,180,70,45] and mirror image [0,0,0,0,70,-135]. The points are the same
from orientation point of view at final orientation point but the orientation is
achieved by rotating with different sequence. The solid arrows show the fixed
frame. Dotted arrows show the orientation frames after each fixed angle rotation.
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Rockwell Automation Publication MOTION-UM002F-EN-P - February 2018