Thanks Jeff!
That is just a perfect solution!!
arto
2009/8/24 Jeff Whitaker <jsw...@fastmail.fm>
> Arto Oksanen wrote:
>
>> Thanks for your prompt reply. I should have given a more detailed
>> explanation. I do know the solar position and then the latitude and
>> longitude of the point on globe where the Sun is on the zenith. And as the
>> sun illuminates always half of the globe, I just need to draw a "dark half
>> globe" over the normal globe. Is this possible? That should be a lot simpler
>> than drawing continents etc. :-)
>>
>> arto
>>
>
> Arto: Here's something - is this what you're looking for? It computes
> the day-night terminator, then shades one side of the terminator gray on a
> map.
>
> -Jeff
>
> P.S. I've cc-ed the matplotlib users list in case anyone else has ideas.
>
>>
>>
>>
>> 2009/8/24 Jeff Whitaker <jeffrey.s.whita...@noaa.gov <mailto:
>> jeffrey.s.whita...@noaa.gov>>
>>
>>
>> Arto Oksanen wrote:
>>
>> Hello from Finland!
>>
>> I am writing an utility for quickly seeing where astronomical
>> events (like a GRB) are visible on Earth. I have installed
>> Basemap and it generates very nice Earth views, but I still need
>> to somehow display the day and night on the globe. Any sample
>> code somewhere or some pointers how to do this?
>>
>> I am looking for something like this:
>>
>> http://www.fourmilab.ch/cgi-bin/Earth?imgsize=320&opt=-l&lat=57.1667&ns=North&lon=49.125&ew=West&alt=372461&img=learth.evif
>> <
>> http://www.fourmilab.ch/cgi-bin/Earth?imgsize=320&opt=-l&lat=57.1667&ns=North&lon=49.125&ew=West&alt=372461&img=learth.evif
>> >
>> <
>> http://www.fourmilab.ch/cgi-bin/Earth?imgsize=320&opt=-l&lat=57.1667&ns=North&lon=49.125&ew=West&alt=372461&img=learth.evif
>> <
>> http://www.fourmilab.ch/cgi-bin/Earth?imgsize=320&opt=-l&lat=57.1667&ns=North&lon=49.125&ew=West&alt=372461&img=learth.evif
>> >>
>>
>> TIA!
>>
>> arto
>>
>> -- Arto Oksanen
>> arto.oksa...@jklsirius.fi <mailto:arto.oksa...@jklsirius.fi>
>> <mailto:arto.oksa...@jklsirius.fi
>> <mailto:arto.oksa...@jklsirius.fi>>
>> Muurame, Finland
>>
>> Arto: This might help:
>>
>> http://en.wikipedia.org/wiki/Sunrise_equation
>>
>> -Jeff
>>
>>
>>
>>
>> --
>> Arto Oksanen
>> arto.oksa...@jklsirius.fi <mailto:arto.oksa...@jklsirius.fi>
>> Muurame, Finland
>>
>
>
> --
> Jeffrey S. Whitaker Phone : (303)497-6313
> Meteorologist FAX : (303)497-6449
> NOAA/OAR/PSD R/PSD1 Email : jeffrey.s.whita...@noaa.gov
> 325 Broadway Office : Skaggs Research Cntr 1D-113
> Boulder, CO, USA 80303-3328 Web : http://tinyurl.com/5telg
>
--
Arto Oksanen
arto.oksa...@jklsirius.fi
Muurame, Finland
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