Plotting irregular data point-by-point

[Steve Guimond <guimond@xxxxxxxxxxxxx>]

Ferret Clan:
   I have a set of satellite data that is not on a regular lat/lon grid
and has variable deltas in lat/lon as well.  The data looks something like
this:

lat     lon    value
20.12  10.14   1320
20.45  10.60   1200
etc...

Is there a way to plot the value that I read in point-by-point according
to the right lat/lon?  An IDL routine creates a small shape and then fills
that shape with an appropriate color correspoinding the the value at the
right lat/lon position.  How can this be accomplished in Ferret?

Thanks

Steve Guimond
Research Assistant
The Center for Ocean-Atmospheric Prediction Studies