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Re: [ferret_users] mp_stereographic_south



Hi Ansley:
Thanks a lot!
I am running pyFerret. For some reason, the mp_land does not work on my computer....
neither for mp_stereographic_north  or mp_stereographic_south

Muyin







On Wed, Mar 13, 2019 at 3:57 PM Ansley C. Manke <ansley.b.manke@xxxxxxxx> wrote:

Hi Muyin,

Start with the script

yes? go/help mp_stereo_demo

which uses mp_stereographic_north for a stereographic projection in the northern hemisphere, but instead use mp_stereographic_south.

..


So, for the southern hemisphere, here's how it would start, centered on the south pole, in a region to 60S ; the SET REGION and the arguments to the mp_stereographic_south script can of course be customized.


yes? SET WINDOW/SIZE=0.6

yes? USE etopo20
yes? SET GRID rose
yes? set region/x=0:360/y=-90:-60
yes? GO mp_stereographic_south 180 -90
yes? LET masked_rose = rose * mp_mask

yes? GO mp_aspect

yes? FILL/NOAXES/NOLAB/PALETTE=land_sea/KEY=horiz masked_rose, x_page, y_page

yes? go mp_land
yes? frame/file=antarctica.png


That image is attached.  You could go on to make graticule lines and so forth, as in the demo script.


On 3/13/2019 3:30 PM, Muyin Wang - NOAA Affiliate wrote:
Can Ferret plot the polar stereographic project for the Antarctic?
Is so, what is the command?

Thanks.
Muyin


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