Measure surface area function
Click the icon to start measuring surface area. Randomly choose N points on the screen.
Clicking the bidirection button, the screen will show a end
-
up area made by some straight line.
Its surface area will be show at the bottom left corner. Red endpoint can be moved and
fine
-
tuned by the arrows at the bottom right corner.
Bidirection button can
change from different endpoint to do adjustment.
