[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.
>
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