[AstroPy] mollweide projection plotting (celestial sphere in Galactic coord) ?
Mubdi Rahman
rahman@astro.utoronto...
Wed Jun 19 12:24:14 CDT 2013
The built-in matplotlib way is fairly easy (using the "basemap" package): http://matplotlib.org/basemap/users/moll.html
One note that I'd make is that when you define your basemap, make sure you use the flag "celestial=True" to get coordinates going in the right direction for astronomy.
>________________________________
> From: Kelle Cruz <kellecruz@gmail.com>
>To: Marshall Perrin <mperrin@stsci.edu>
>Cc: "<astropy@scipy.org>" <astropy@scipy.org>
>Sent: Wednesday, June 19, 2013 1:10:50 PM
>Subject: Re: [AstroPy] mollweide projection plotting (celestial sphere in Galactic coord) ?
>
>
>
>this is also included in one of the tutorials Adrian and I worked on:
>https://github.com/astropy/astropy-tutorials/blob/master/tutorials/Plot-Catalog/plot-catalog.py
>
>
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>On Wed, Jun 19, 2013 at 12:21 PM, Marshall Perrin <mperrin@stsci.edu> wrote:
>
>On Jun 19, 2013, at 11:50 AM, Guillaume Blanc wrote:
>>> I'm looking in a python library to plot a mollweide projection of the celestial sphere with some points and lines between two points... I tried using healpy, but the projplot function doesn't work well, and the plotting options look limited (well, it's not the main goal of that library, actually).
>>>
>>> To try to be clearer, I'd like to plot some objects in a projection of the celestial sphere in galactic coordinates with the standard mollweide projection, and plot as well some "lines" such as the celestial equator and so on...
>>>
>>> I'm sure something exist somewhere to do that!
>>
>>
>>This can actually all be done in plain matplotlib, just by setting the 'projection' keyword when setting up the plot axes.
>>
>>See http://matplotlib.org/examples/pylab_examples/geo_demo.html
>>
>>
>> - Marshall
>>
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>
>--
>Kelle Cruz, PhD — http://kellecruz.com/
>917.725.1334 — Hunter: x16486 — AMNH: x3404
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