Re: pie chart over a map

Hi Zheng,

We don't have a specific example of what you're asking for, but I would suggest looking at the pie chart examples at:

http://www.ncl.ucar.edu/Applications/pie_chart.shtml

These pie charts are created using calls to gsn_add_polygon to create the wedges.
I believe you could take this "pie_chart" function, which is in $NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl
and adapt it to draw the pies over a map, instead of drawing a single pie chart in an XY plot, which this one is doing.

Good luck,

--Mary

On Jan 29, 2013, at 12:32 PM, Zheng Lu wrote:

> Hi, all,
>
> Is it possible to plot many pie charts on a map? In other words, using pie charts as markers?
>
> a example: http://alaska.usgs.gov/science/biology/seabirds_foragefish/foragefish/images/beach_seine_comp_pie_charts_sm.gif
>
> Thanks much!
>
> Zheng
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Received on Tue Jan 29 22:38:51 2013