Second and third Q-axis captions are probably wrong for non-reclinear lattices

[abuts]

This ticket is blocked by :

• TRAC4813

ConvertToMDevents currently convert to orthogonal attached to reciprocal lattice system of coordinates which has first vector (u) direction selected accordingly to the hkl coordinates of the reciprocal lattice (e.g. [1,1,0], second vector (v) -- in the plain defined by its hkl coordinates but orthogonal to the first one [e.g. [1,-1,1] and the third -- orthogonal to the first two.

This has been done because the visualization displays the images in orthogonal coordinate system, when hkl do not generally relate to orthogonal system for non-cubic Bravais cell not

The captions along the axis in HKL coordinate system are currently made by symbolic representation of the above mentioned indexes.
e.g, for the example above, we would have X-axis caption [Qh,Qk,0] and Y-axis-- [Qh,-Qk,Ql]

when the first axis is certainly directed where the caption says, two other axis are probably not if the Bravais cell is not rectangular.

Despite current Mslice and Horace are doing something similar, this is probably wrong.

[abuts]

This issue was originally trac ticket 4609