BF: Correct viewers _on_mouse, _on_scroll for non RAS matrices #1349
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This is the second part of the correction of bugs in viewers.py for matrices with non RAS orientation.
Corrections have been made on
_on_mouse
and_on_scroll
.I don't know where the original code comes from, but there was an erroneous index positioning a la Matlab style...
There was also confusing ordering of indices and matching from axis to matrices and right values to be passed to the affine transform.
I think that it can be rewritted to be more easier to understand, but I have no time now.
Best regards,
Guillaume