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drag left/right
xz
rotation
drag up/down
yz
rotation
shift
+drag left/right
xw
rotation
shift
+drag up/down
yw
rotation
alt
+
shift
+drag left/right
xy
rotation
alt
+
shift
+drag up/down
zw
rotation
-
Rotate xy
Rotate yz
Rotate zw
Rotate xz
Rotate xw
Rotate yw
Normal - Edges may be drawn in region outside axes. They travel in hyperbolas to infinity and come back the other side.
To keep edges within axes, right endpoints are swapped and intersection recalculation. Note the crossing as points travel back to the right.
To keep edges within axes, right scale is inverted and intersection recalculated. Note how color flips when the edge hits the right axis.
Rotations: