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Re: [ferret_users] graphic flags



Hi Guilia,
You can label any location with the LABEL command, and put symbols or shapes on it with the PLOT/VS/OVER or POLYGON/OVER command

   ! An example contour plot. 
yes? use coads_climatology
yes? contour/L=1 sst; go fland

   ! Make a mark at a location 180 degrees lon, 18 lat
yes? PLOT/VS/OVER/SYM=22 180,18

   ! Label this location. You could use180,19 as the first two
   ! arguments to move the label up a bit.
yes? LABEL/USER 180,18,-1,0,0.1, "@CR180,18"


   ! Or, make a single polygon at a location
yes? go polymark poly/over/nokey/nolabel/palette=red {180}, {-22}, " ", circle, 0.5
yes? label/user 180,-22,-1,0,0.1,"@CR180,-22"

If there is a time axis on the plot, see the FAQ, How can I overlay symbols on a plot with a time axis? http://ferret.pmel.noaa.gov/Ferret/FAQ/custom_plots/time_series_symbol_overlay.html

Ansley

Giulia Clai wrote:
hallo,
does anybody know how to put a flag on a contour graphic for a lon, lat point?
Giulia 
  

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