[ncl-talk] Draw shapefile polygons with specific colors based on districts

[Rick Brownrigg]

Does your shapefile have the names of the regions for each polygon in your
shapefile (and is your shapefile indeed a polygonal, vs. a polyline,
shapefile)?

If so, shapefiles_1.ncl would still serve as a starting point, where the
"data" is the name, not some derived value. I'd set up a table of
region-name/colors, and as each polygon is drawn in turn, consult that
table for the name to get/set the associated color.

Rick


On Tue, May 15, 2018 at 11:08 AM, Tabish Ansari <tabishumaransari at gmail.com>
wrote:

> Hi
>
> I want to draw a map of Northern China with with specific colors for each
> district based on its name.
>
> How can I do it using shapefile polygons?
>
> There's an example on the US with unemployment data here:
> https://www.ncl.ucar.edu/Applications/Scripts/shapefiles_1.ncl
>
> but I don't have any data to plot but only the districts with different
> colors based on their name.
>
> Thanks
>
> Tabish
>
> Tabish U Ansari
> PhD student, Lancaster Environment Center
> Lancaster Univeristy
> Bailrigg, Lancaster,
> LA1 4YW, United Kingdom
>
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