Re: Extracting a line from a grid
Sanjay <[email protected]>
| Newsgroups | gmane.comp.gis.gmt.user |
|---|---|
| Message-ID | <[email protected]> |
When i tried to extract the profile from grdtrack error message came with E is unrecognized option. i am using GMT 4.5.7 Regards sanjay On Wednesday, February 26, 2014 1:42 AM, Paul Wessel <[email protected]> wrote: Hm, I must be running a more recent version than you (I only get the 3 cols but if you are running the Nov 5 release it may have a bug we have since fixed); so you are also getting distances along the line. Until the next release (or update yours) you could use -o0,1,3 to get what you want. -p On Feb 25, 2014, at 10:00 AM, Shahar Barak <[email protected]> wrote: 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. >-11732.2500.0597692318261 >-116.99576271232.25264830510.004996812040290.0604514658204 >-116.99152542432.25529661020.009993624080570.0611412584514 >-116.98728813632.25794491530.01499043612090.0618330594925 >-116.98305084732.26059322030.01998724816110.0625284501071 >-116.97881355932.26324152540.02498406020140.0632297094842 >-116.97457627132.26588983050.02998087224170.0639385271851 >-116.97033898332.26853813560.0349776842820.0646567940722 > > >gmt grdinfo ${grd_file} -C > >tomo_slice.grd-120-1143236-0.3330352008340.1762996315960.0050.0051201801 > > > > > > >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 [email protected] >> > To unsubscribe, send the message "signoff gmt-help" to [email protected] To unsubscribe, send the message "signoff gmt-help" to [email protected] To unsubscribe, send the message "signoff gmt-help" to [email protected]