An astronomical and surveying instrument, mounted on a tripod.
A Dioptra is utilized by activating it and right clicking another player. There will be a 'Plan Bridge' option which will proceed to plan the bridge as follows:
* You carefully place the dioptra on its tripod in front of you.
* You make sure the dioptra is level.
* You point the dioptra at <Player>.
* You wave at <Player>.
* You line up the dioptra with <Player>.
* You look through the dioptra.
* You focus on the range pole.
* You read the graduations on the range pole and work out the height difference.
* You check the heights of the plan ends.
* You appear to be <xx> dirt <Higher/lower> than <Player>.
* You work out the orientation and width for the bridge.
* You check for clearance between the bridge ends.
* You check for protruding foliage.
* You check for nearby cave entrances.
* You check for any items in the way.
* You check that you have permissions to build the bridge.
* You check for any bridges that may interfere with this bridge.
* You check there would be no buildings under this bridge.
* You work out the styles of bridges that would fit.
* You start working out the bridge components required.
* Planned bridge area is <x> tile(s) long and <x> tile(s) wide.
* You stop surveying.
* You pack up the dioptra.
==See also==