Area calculations

[mhesselbarth]

d2db0ca

There were some issues with the area calculation for sample plots which is needed to get the percentage inside value during sampling. I figured out this is related to the CRS and the transform argument of terra::expanse(). So I added an argument passed on. @Nowosad you are the CRS expert, is there a way to automatically detect the correct TRUE/FALSE option depending on the CRS?

[Nowosad]

Hi @mhesselbarth -- I will take a look at this in the next week or two (I have some other deadlines approaching soon).

[mhesselbarth]

No rush. For now, I will add the TRUE/FALSE argument, but would be nice if this can be automated

[Nowosad]

Hi @mhesselbarth I have finally take a minute to look at this. I think you are looking for terra::is.lonlat -- so basically it could be something like:

terra::expanse(y, transform = !terra::is.lonlat(y))

[mhesselbarth]

Amazing. This seems to to the trick. I will implement this soon-ish!

[mhesselbarth]

Reminder for myself to re-visit this and check :)