> Quote - Well I see your edit, but you're not wrong - there are cases where it will not work right.

 

Yes, I've just found one.

The image attached to this message shows tile width 0.1 and height 0.5 (to show some contrast between horizontal and vertical) and the mortar width is 0.5.

Looks okay for having consistently spaced tiles and it appears the 0.5 mortar width is using the horizontal spacing to determine what percentage of the tile to occupy.

That's fine; we just have to keep in mind that the horizontal size determines mortar width and orient things appropriately.

However...