c/pics · by DirigibleProtein@aussie.zone · 2y[OC] Survey Mark 54 points · 4 comments · view on lemmy.world
4 Comments
NerfHerder@lemm.ee · 3 pts · 2y
Luckily you didn't need to leave this 60+ feet in the air
DirigibleProtein@aussie.zone · 4 pts · 2y
What does that mean? I saw it on a concrete pole and I thought it looked interesting.
NerfHerder@lemm.ee · 2 pts · 2y
Its used by a topcon or similar device. The device is used to map out 3D space using these points as Z, Y, Z distance markers from the device.
DirigibleProtein@aussie.zone · 2 pts · 2y
I thought with the target thing it was some kind of survey mark. Thank you for the explanation!