I think it would be useful to have a tool for measuring distances & areas, like the land surveyor but without altering the world.
For example:
- tool might fit in (A)dventure/la(N)dscaping/m(E)asure
- drag to select an area like the other landscaping tools, also showing area
- when drag is released, a popup spawns with the width, height and area
- the selected ground is highlighted until the popup is closed
- potentially, a breakdown of the types of tiles present (e.g. forest, grassland, stone, farmland) also displays
This could be useful for things like finding out how much stone is needed to finish paving an area, planning out where constructions will go, or finding out how much a claim should be extended.
This could definitely be implemented as a purely-client-side feature, though I don't have enough of a tolerance for java to do it myself :^)