[Insight-users] How to calculate the area of the level set front?

[Kai Li]

Hi,
  I need to calculte the area of the front surface of the level set
function. I also want to calcuate the weighted area of the front ( each
node in the front has a weight).

  Any suggestions for the method, or the place where I can find useful
information, are highly appreciated!

Thanks,
Kai