Re: [CHANGESET] Re: Help with griddata3

[António Santos]

Hi,

It solved the problem but the function seems to not return valid data,  
only NaNs.
I tried this:

rand('state',0);
x = 2*rand(5,1)-1;
y = 2*rand(5,1)-1;
z = 2*rand(5,1)-1;
v = x.^2 + y.^2 + z.^2;
d = -0.8:0.05:0.8;
[xi,yi,zi] = meshgrid(d,d,d);
w = griddata3(x,y,z,v,xi,yi,zi)

w only contains NaNs...Is anyone experiencing this problem too? Or am  
I doing something wrong?

Thanks,

António Santos

---

> António Santos wrote:
> > Hi,
> >
> > I have a Fedora Core 6 system with Octave 2.9.9-1 and Octave-forge
> > 2006.07.09-7 installed.
> > I need to use the griddata3 function, which seems to not be present in
> > these packages. I tried to download de griddata3.m from other
> > distributions but I'm having no success with using this function.
> > griddata3 calls griddata like the following:
> > vi = griddata([x(:),y(:),z(:)],v(:),[xi(:),yi(:),zi(:)],varargin{:});
> > However, griddata does not accept all these parameters...
> > I also downloaded the source code from Octave 3.0.0 and, althought I
> > didn't test it, it seems that the problem still persists.
> > Any clue on how to use griddata3?
> >
> > Thanks,
> >
> > António Santos
> Opps, that can't ever have worked as written, but I sure to have tested
> this... In any case the fact that it doesn't work is my fault, and the
> attached patch should fix it and adds test code.
>
> D.
>
> --
> David Bateman                                address@hidden
> Motorola Labs - Paris                        +33 1 69 35 48 04 (Ph)
> Parc Les Algorithmes, Commune de St Aubin    +33 6 72 01 06 33 (Mob)
> 91193 Gif-Sur-Yvette FRANCE                  +33 1 69 35 77 01 (Fax)
>
> The information contained in this communication has been classified as:
>
> [x] General Business Information
> [ ] Motorola Internal Use Only
> [ ] Motorola Confidential Proprietary