Re: Extracting a line from a grid

Thanks, Paul!
I used:
gmt grdtrack -G${grd_file} -E${LON1}/${LAT1}/${LON2}/${LAT2}+i0.005d
but I expected an output of 3 columns: lon / lat / interpolated-data-point.
But I got 4 columns in the output. The first two seems like the lons and
lats, not sure about the other two.
-117 32.25 0 0.0597692318261
-116.995762712 32.2526483051 0.00499681204029 0.0604514658204
-116.991525424 32.2552966102 0.00999362408057 0.0611412584514
-116.987288136 32.2579449153 0.0149904361209 0.0618330594925
-116.983050847 32.2605932203 0.0199872481611 0.0625284501071
-116.978813559 32.2632415254 0.0249840602014 0.0632297094842
-116.974576271 32.2658898305 0.0299808722417 0.0639385271851
-116.970338983 32.2685381356 0.034977684282 0.0646567940722

gmt grdinfo ${grd_file} -C
tomo_slice.grd -120 -114 32 36 -0.333035200834 0.176299631596 0.005 0.005
1201 801



On Tue, Feb 25, 2014 at 11:18 AM, Paul Wessel <[email protected]> wrote:

> Yes, see grdtrack -E
>
> On Feb 25, 2014, at 8:58 AM, Shahar Barak <[email protected]> wrote:
>
> > Hi,
> >
> > Is there a way to use GMT to extract data points from a grid along a
> line, given the 2 end points?
> >
> > Thanks,
> >
> > Shahar
> > To unsubscribe, send the message "signoff gmt-help" to
> [email protected]
>
> To unsubscribe, send the message "signoff gmt-help" to
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>

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