Share 'Multiple section and curves trough points'

Dear All I try to create a DTM (digital terrain model) based on level curves (the curve that have height information, I'm not sure about the English term). I've already checked various plug-in also for rhino like terrain, terrain in 3DS max etc, but I the result isn't enough for precision request mine, and I've also try with patch surface directly on the level curves.. terrible!!! I have found a…