a lofty tool
This has proven to be an indispensible aid for eliminating some of the guesswork for calculating load-bearing factors in rigging ropework for fashioning platforms, catwalks, burma bridges, tyrolean traverses and ziplines in the "ewok village" I have been building in BCs old growth forest. Recommended.
SentientShadow about
SeeLevel - visual clinometer, v3.3