What length in pixels does a Wings3D unit of measurement equate to?

[Nightwing]

There's no useful relationship between pixels and a WU - just as there is no other linear correlation between a WU and miles / mm / cm / nanometre etc

pp

Thanks puzzledpaul, I'm wondering what do you mean by useful?

If I RMB and create the default cube - which is, if I'm correct, 2 WU x 2 WU x 2 WU, then internally Wings3D must know what a WU corresponds to in pixels in order for the software to draw the cube.