There's a rack and I drew a virtual rack object (actually just a cube) in 1:1 scale. I want my virtual rack to be placed so that the virtual rack and real rack match exactly. I cannot simply place the virtual rack on the ground because the real rack has adjustable bolts under it to adjust its height and I cannot measure this beforehand. I hope my virtual cube and the real cube can be aligned by the top.
I think there must be a way to snap the virtual rack against the edges and corners but no idea how.