Re: splot pm3d and dgrid3d. Cannot understand the underlying details

merritt@[EMAIL PROTECTED]
 wrote in news:g68f5o$5ii$1
@[EMAIL PROTECTED]
> Think of each grid line as a Fourier transform of a slice of the data.
> If you take enough Fourier terms, the grid line will be very 'ripply'
and
> pass through each relevant data point.  But if you take only a few
> low-order terms (i.e. a low pass filter) then you get a smooth curve
> that is an approximate fit to the data.
> 

Thanks Ethan. That makes sense now.

-- 
Rahul