[gradsusr] Drawing a symbol in a time-latitude plot

[James T. Potemra]

Hi Lyndz,

There is a GrADS command w2xy that should take world coordinates as 
input and return inches on the page.  So, in your example below if you 
enter:

ga-> q w2xy 00Z01AUG2019 10

where 00Z01AUG2019 is time and 10 is latitude 10N.  GrADS will return 
the location on the page, which you can then use in drawing a symbol 
using "draw string".

Jim

On 10/20/19 11:25 PM, Lyndz wrote:
> Dear GrADS experts,
>
> I have a time (x-axis)--latitude (y-axis) plot.
> The dates ranges from January 1 o December 31.
>
> I want to draw a symbol at, say, 10N and at August 1.
> Is there a way to accurately access the correct x-coordinate of a 
> specific date in this kind of plot?
>
> I'll appreciate any help.
>
> Sincerely.
> Lyndz
>
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