> What origin point do you mean? Altitudes in the map are displayed as a > difference to grid-origin (set in layout). You need to probably set > this one.
Ok, try that.
>
> Amplitude = depth in cave. Do you want to change just the label
> displayed on the map?
>
A-B = Amplitude of cave (from high point to depth point)
entrance - B = depth of cave (from entrance to depth)
plan of cave:
A 8
8
8
entrance
8
8
8
B
