Re: [ferret_users] How to add symbol on a map when lat and lon are known

[William Kessler <william.s.kessler@xxxxxxxx>]

I think the initial example would work with PLOT/VS (you omitted VS).

As written

> plot/overlay/symbol=20/color=blue lon[d=5],lat[d=5]

is trying to plot the two variables separately, which does not make sense (i.e. does not have a usable axis) on top of a map.

BK


> On Apr 7, 2021, at 11:19 PM, Satyesh Ghetiya <satyeshghetiya@xxxxxxxxx> wrote:
> 
> I am sharing what I did, some other better options also may be there. What I did is, I have made loop of label command and its position was given by each lat long.
> Let say you have 4000 I indices (you know it by show data) and you have LAT LONG variable in d=2 then --> 
> 
> repeat/range=1:4000/name=rr (let aa=lon[i=`rr`,d=2] ; let bb=lat[i=`rr`,d=2] ;lab `aa`,`bb`,0,0,0.03 @P4+;)
> 
> regards,
> G Satyesh, India.
> 
> On Thu, Apr 8, 2021 at 11:22 AM Swetha sivakumar <swetha.s2060@xxxxxxxxx> wrote:
> Hello
> 
> set region /x=77:79.4/y=9.4:11.4
> shade/lev=(-inf)(-1,1,0.1)(inf)/nolab/nokey sst
> plot/overlay/symbol=20  lon,lat
> 
> I am trying to plot sst and overlay it with station locations which are given in separate var lon and lat. 
> I get the following error
> 
> **ERROR: illegal limits: "LON[D=location]" does not exist at X=77:79.4
>           Axis extremes are X=0.5:66.5
> plot/overlay/symbol=20/color=blue lon[d=5],lat[d=5]
> Command file, command group, or REPEAT execution aborted
> 
> Values of lon and lat do exist in the defined set region.  
> 
> TIA
> 
> Best,
> swetha
> 
> 
> 
> -- 
> G Satyesh
>