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Programming > Idl-pvware > Re: Grid Transf...
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Re: Grid Transformation to a new grid

by david <david@[EMAIL PROTECTED] > Feb 12, 2008 at 12:23 PM

Hi,
I use this one to interpol with nearest_neighbour:
z_Data_limits=GRIDDATA(xutm_i(0:num_gates_max-1,*),yutm_i(0:num_gates_max-1,*),

$ 
                                
z_data(0:num_gates_max-1,*,k,i),METHOD='NearestNeighbour'),TRIANGLES=tri....)

Is this what you want?

Cheers!


capmail79-google@[EMAIL PROTECTED]
 wrote:
> Hello Everybody!
>
> I want to transpose 3D Radar values from an irregular grid to a
> definable 3D grid. Since I could not find any function for the 3D
> problem I tried the function trigrid for 2D grids, which works very
> well for the middle area of my domain, but does only poorly replicate
> the radar echoes on the edges. I assume, this is due to the
> interpolation of the values, which happens within the function.
>
> If I could have the source code of the function trigrid, i could
> possibly adapt it to my problem, but i could not find that.
>
> So I tried to find a function which just takes the value of the
> nearest neighbour and writes it on the new grid, without any
> interpolation. I did not succeed here, too.
>
> Does anybody know a program for my problem or where I can get the
> source code of the function trigrid? Or even better, it would be
> great, if there is a program which could handle the grid
> transformation problem quickly and efficiently on a 3D grid!
>
> Thanks, very much!
>
> Vera
>
 




 3 Posts in Topic:
Grid Transformation to a new grid
capmail79-google@[EMAIL P  2008-02-12 02:49:19 
Re: Grid Transformation to a new grid
david <david@[EMAIL PR  2008-02-12 12:23:49 
Re: Grid Transformation to a new grid
Spon <christoph.blau@[  2008-02-12 03:37:50 

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tan12V112 Fri Oct 10 13:12:42 CDT 2008.