Re: Suggestion for dgrid3d

[Philipp K. J. <ja...@ie...>]

snip

>
> As you said the gaussian would be an obvious choice , having a finite
> weight close to zero seems essencial.
>

snip

>
> Nice plots , I think you illustrate the point very well . There are some
> obvious artifacts in the current model particularly heavy in the lower
> order plots.
>
> I think your suggestion is a marked improvement from a theoretical point
> of view and that your example points out that the magnitude of the
> improvements possible by applying a more suitable weighting function.
>
> Nice contribution. I hope it gets adopted.

Thanks. 

The next step up would be to have two-different
scale factors as part of dgrid3d - one for the 
x- and y-directions, respectively. Then the weight
function becomes:
	exp( - (x/x0)**2 + (y/y0)**2 )
which means that you can now control the radius
of influence for both x and y IN THE UNITS OF THE
DATA ITSELF, without having to resort to rescaling
your data outside of gnuplot.

I think this would be really useful.

Best,

		Ph.