[kragen]

i would say calling this projection isometric is 'a relatively recent error'

in an isometric projection all the edges of an axis-aligned cube are the same length. in the axonometric projection discussed here, which is dimetric rather than isometric, the vertical edges are of length 1 while the horizontal edges are of length √(1 + ½²) ≈ 1.118

is the fact that this projection is not isometric the reason zaxxon was called zaxxon and not zisom?

[twelvechairs]

The horizontal edges are clearly measurable. The vertical (z) axis you are making a requirement that it has to show directly on top of a tile 1X and 1Y offset. That's on you.

[kragen]

?

[kragen]

i have no idea what you intended to say here