[gradsusr] Extracting the lat-lon points along the contour line

[Jennifer M Adams]

Hi, Lyndz — 
Try using ‘set gxout kml’ and ‘set kml -line’ and draw the one contour. Then you can parse the .kml file to get the lon,lat coordinates of each vertex along the contour line. It’s not a direct path to what you need, but it should work. 
—Jennifer

> On Apr 24, 2019, at 9:39 PM, Lyndz <olagueralyndonmark429 at gmail.com> wrote:
> 
> Dear GrADS experts,
> 
> I have the following plot generated using GrADS.
> The red line is the 0 contour line of meridional wind speed (vwnd).
> 
> 'set gxout contour'
> 'set t 'Tmin
> 'set ccolor 9'
> 'set clevs 0'
> 'set cthick 6'
> 'd vwnd(lev=925)'
> 
> I would like to extract the lat-lon points along the contour line.
> Is this possible in GrADS?
> I'll appreciate any help.
> 
> Sincerely,
> Lyndz
> 
> <Screenshot from 2019-04-25 10-34-30.png>_______________________________________________
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--
Jennifer Miletta Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
George Mason University