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

Hans-Bernhard Bröker <HBBroeker@xxxxxxxxxxx> wrote in news:g6b341$pmd$01$2
@news.t-online.com:

Is the scheme of weighted-averaging essentially over the entire dataset
with an arbitrary norm typical?

Typical of what?


Is this procedure for interpolation "typical" in the domain of math /
visualization / interpolation. That is what I meant. For example a quick
survey of "interpolation" hits on google results in all kinds of schemes
but I did not find the one that's described for dgrid3d. Hence my
curiosity.

For example:

http://en.wikipedia.org/wiki/Interpolation
http://local.wasp.uwa.edu.au/~pbourke/other/interpolation/
http://www.mathworks.com/access/helpdesk/help/techdoc/index.html?/access/he
lpdesk/help/techdoc/ref/meshgrid.html&http://www.google.com/search?
hl=en&rlz=1B3GGGL_enUS261US261&q=matlab+meshgrid&btnG=Search


Most of these methods seem to exploit some mathematical property
(polynomial behavior, continuity, smoothing etc.). Also most have a sense
of locality around the point one interpolates to. I was just curious about
the details / pros / cons of the approach gnuplot uses.

Being familiar with the meticulousness of the gnuplot design I feel
confidant that there must have been a reason to select this, somewhat
uncommon, gridding method.


--
Rahul
.