Re: gsnMaskLambertConformal

From: Gary Bates <gary.bates_at_nyahnyahspammersnyahnyah>
Date: Mon Dec 21 2009 - 12:08:33 MST

Mary,
Yes! Thats precisely what I need --- I'd like to try it out. Thanks
for your quick response on this...

A sample of the type of figure I'm working on is attached...
-Gary

Mary Haley wrote:
> Hi Gary,
>
> Go to http://www.pyngl.ucar.edu/Examples/gallery.shtml
>
> and search for "conmasklc". Is this what you're looking for?
>
> This involves changes to PyNGL that have to be compiled, so let me know
> if you want a new version to try.
>
> --Mary
>
> On Dec 18, 2009, at 2:33 PM, Gary Bates wrote:
>
>> Thanks Mary,
>>
>> I think this would be a useful function that many people would want.
>> -Gary
>>
>>
>>
>> Mary Haley wrote:
>>> Hi Gary,
>>> I wish it were this simple! The masking of the lambert conformal
>>> projection is done the kludgy way by
>>> drawing a filled polygon over the part of the plot you don't want to
>>> see.
>>> I'll see if I can pythonize the function that does the masking in the
>>> NCL version.
>>> --Mary
>>> On Dec 18, 2009, at 1:09 PM, Gary Bates wrote:
>>>> hi,
>>>> What is the corresponding resource in PyNGL to gsnMaskLambertConformal?
>>>>
>>>> I've made a Lambert Conformal plot which *almost* looks as I'd like,
>>>> except that continental outlines spill outside my chosen map area
>>>> slightly. How do I mask out the map outside the lat/lon area i've
>>>> specified?
>>>>
>>>> I have:
>>>>
>>>> resources.mpProjection = "LambertConformal"
>>>> resources.mpLambertMeridianF = -110.
>>>> resources.mpLambertParallel1F = 50.
>>>> resources.mpLambertParallel1F = 50.
>>>> resources.mpEllipticalBoundary = True
>>>> resources.mpAreaMaskingOn = True
>>>> resources.mpGridMaskMode = "MaskMaskArea"
>>>> resources.mpLimitMode = "LatLon" # Specify area of map
>>>> resources.mpMinLatF = 25.
>>>> resources.mpMaxLatF = 75.
>>>> resources.mpMinLonF = -170.
>>>> resources.mpMaxLonF = -50.
>>>> resources.mpGridLonSpacingF = 180
>>>> resources.mpGridLatSpacingF = 90
>>>>
>>>> Thanks,
>>>> Gary
>>>> _______________________________________________
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>

hgt500fcstanom_2009121700_pna.png
Received on Mon Dec 21 12:08:49 2009

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