Shouldn't these alignments (rotated 90 degrees about XPLUS, vs about XMINUS) be completely different?
Yes, they should be different. I am assuming PC-DMIS follows some rules such as ccw=positive for rotation signs so, in that case, rotating by a positive angle around axis <-1,0,0> (XMINUS) should be in the opposite direction as rotating by a positive angle around axis <1,0,0> (XPLUS). This has nothing to do with the workplane or anything else as this is a 3D function.
Right or wrong this quirk will never be fixed. There are too many programs with rotation commands in them that will suddenly break if this is changed. I noticed other quirky commands such as the cross product function so that is not the only one.
The Plus and Minus About Axis only needs to be removed from the Alignment options. The Alignment is being rotated TO a Line about an axis, direction being determined by the vector of the line. Plus and Minus makes a difference when rotating X number of degrees ABOUT an axis.
The Plus and Minus About Axis only needs to be removed from the Alignment options. The Alignment is being rotated TO a Line about an axis, direction being determined by the vector of the line. Plus and Minus makes a difference when rotating X number of degrees ABOUT an axis.
