IDW Problem How to define an interpolation limit?

Discussion created by blondesgift on Jun 8, 2014
Latest reply on Jun 16, 2014 by blondesgift
Hey guys,

I'm working on a project in which I have the target to determine the mud amount of a lake. I would like to make an interpolation with the IDW methode. However, I have the problem that the limits of my interpolation are the external measurement points. But I would like to have the lakeborder as limit. Is this possible? Or do I have to use another methode?
I desperately need help so every suggestion is more than welcome!