Re: xyz2grd

I assume those "rivers" are the locations where you actually have data.
If you want to interpolate between these data you will need to consider a 2-D interpolation, a.k.a. gridding.
xyz2grd is not a gridder, it is a reformatter, mostly.  For gridding, see examples in the gallery that uses surface, greenspline, triangulate, etc.

-p

On Mar 3, 2014, at 1:07 PM, Mr Abhash Kumar <[email protected]> wrote:

> Hi,
> I am using xyz2grd to convert the text file into grid file as follows:
> 
> xyz2grd Perugravity.txt -R-78/-66/-20/-9 -I1k -GPerugravity.grd -V
> 
> and then trying to get image of the grid file:
> 
> system "grdimage -Y2i Perugravity.grd $rflag $jflag $bflag -C$cptfn2  -V -K > $psfn\n";
> 
> Instead of getting a smooth grid surface of bouguer anomaly for the Peru region, I am getting image with discrete branching like course of river distributed all over. I have attached both the text file and the image of the grid. I would extremely grateful for any suggestion.
> 
> Thanks
> Abhash kumar
> University of North Carolina at Chapel Hill
> To unsubscribe, send the message "signoff gmt-help" to [email protected] <Bouguer.pdf><Perugravity.txt>


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