[ncl-talk] Antarctic map outline database

Rick Brownrigg brownrig at ucar.edu
Tue Aug 22 11:01:59 MDT 2017


Hi,

I'm not sure I understand the follow-on question regarding cnFillDrawOrder.
Examples 4 and 5 at the following link show how to mask grids/data using a
shapefile -- is that what you want to do?

http://ncl.ucar.edu/Applications/shapefiles.shtml



On Mon, Aug 21, 2017 at 5:58 PM, Manisha Ganeshan <
manisha.ganeshan86 at gmail.com> wrote:

> Thanks, Rick! I've downloaded the shapefile, and am able to plot an
> accurate version of Antarctica's coastline.
>
> Presently, I use cnFillDrawOrder = predraw for masking out the continents.
> I'm wondering if there's a way to direct this function to use the shapefile
> for masking the continent instead of the default "DataBase" version.
>
> Thanks,
> Manisha
>
> On Mon, Aug 21, 2017 at 3:50 PM, Rick Brownrigg <brownrig at ucar.edu> wrote:
>
>> Hi Manisha,
>>
>> We generally recommend shapefiles as a source of more up-to-date,
>> higher-res map-data. There is a shapefile for Antarctica at:
>>
>>      gadm.org
>>
>> There are also a number of examples of using shapefiles with NCL at:
>>
>>     http://ncl.ucar.edu/Applications/shapefiles.shtml
>>
>> Hope that helps...
>>
>> Rick
>>
>> On Mon, Aug 21, 2017 at 12:55 PM, Manisha Ganeshan <
>> manisha.ganeshan86 at gmail.com> wrote:
>>
>>> Hello NCL'ers,
>>>
>>> I've tried plotting the Antarctic continental map outline using the
>>> default database, and the "MediumRes" database using mpDataBaseVersion. But
>>> the plot seems to be plotting the Ronne-Filchner ice-shelf in W. Antarctic,
>>> as part of the continent. Any idea what database I can use to plot the
>>> correct continental outline?
>>>
>>> Thanks,
>>> Manisha
>>>
>>> --
>>> Dr. Manisha Ganeshan
>>> Universities Space Research Association
>>> Maryland, U.S.A.
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at ucar.edu
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>>>
>>
>
>
> --
> Dr. Manisha Ganeshan
> Universities Space Research Association
> Maryland, U.S.A.
>
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