Calcul de surface

je me posais la question aussi en lisant ce post, car c'est un argument de vente + repris sur différent site, mais rien dans la doc de ce GPS.

Pardon, c'est possible, voir la page 28 du PDF (anglais)

ICI

To
calculate the area of a track:
1. With the Track Log Page open and the Track
Log on, press MENU to open the Options
Menu.
Saved track on the Map
Page
2. Highlight Area Calculation, and press ENTER
to open the Area Calculation Page.
3. Press ENTER to start the area calculation.
As you begin to move and de?ne the area's
boundaries, a Stop button appears at the
bottom of the page.
4. When ?nished de?ning the area, press
ENTER
to open the page with a Save button.