API syntax for setting measurement units

[Paulo]

Hello all.

 in GUI, one can set Mesurements units thru Tools/Preferences in General Tab....

What would be the equivalent syntax in API? I guess something like:

Metashape.app.settings.value() = .....

Any help will be appreciated....

[Alexey Pasumansky]

Hello Paul,

Its "main/base_units" and EPSG code for units is used a value. However, the setValue for this parameter wouldn't be applied.

[Paulo]

A thousand Thanks,  Alexey

However, I found an error when measuring perimeter3D when base units are set to foot (EPSG code 9002). I have a polyline shape 1 whose measurement with context menu Measure is correct 5.965 ft. However when I type shape.perimeter3D() in console I get incorrect value 1.818 (which corresponds to meters unit). Please see attachment....