[AstroPy] Is There an AstroCalc Module?

Wayne Watson sierra_mtnview@sbcglobal....
Wed Dec 30 14:20:21 CST 2009


What is PyPI?  I unzipped the file, and searched for an html, but don't 
see any. I guess it's only at PyPI.  Snap shot of my folder below this line.


Russell Owen wrote:
> There is an overview at PyPI and in an html doc that is part of the 
> source distro. Other than that, no...use the doc strings and the info 
> I sent you.
>
> -- Russell
>
> On Dec 30, 2009, at 11:07 AM, Wayne Watson wrote:
>
>> Before I install it, is there a document that summarizes what's in 
>> it? That is, gives a brief summary of each function?
>>
>> Russell Owen wrote:
>>> The RO package is pure python so I only have a source code version 
>>> available. That is the one you want.
>>>
>>> I suggest you use "easy_install" or "pip" to install it.
>>>
>>> You can also install it by downloading it and running "setup.py 
>>> install" in the main directory--though it may require setuptools. 
>>> Once you have installed setuptools you have "easy_install" so you 
>>> might as well use that. (pip also requires setuptools -- nearly any 
>>> sort of installer does these days).
>>>
>>> Or if you wish to avoid setuptools then you can download the source 
>>> and copy or move the "RO" directory (<package root>/python/RO) into 
>>> your site-packages directory. I don't know where site-packages is on 
>>> Windows.
>>>
>>> Regards,
>>>
>>> -- Russell
>>>
>>> On Dec 28, 2009, at 10:34 AM, Wayne Watson wrote:
>>>
>>>> Hi, I'm on Python 2.5, Windows. Are any of the downloads on the 
>>>> link applicable to my situation? If I use it, where under 
>>>> c:/Python25 do I put it? Lib?
>>>>
>>>> Russell Owen wrote:
>>>>> There is various software that will perform astronomical 
>>>>> transformations of time and position. I do not know what exists 
>>>>> for projections (other than any projections that might exist in 
>>>>> matplotlib).
>>>>>
>>>>> One option is RO.Astro 
>>>>> <http://pypi.python.org/pypi?:action=display&name=RO>, which I 
>>>>> wrote. The routines are easy to use (see documentation in doc 
>>>>> strings) and the coordinate transformations are performed to high 
>>>>> accuracy. It is pure python (though it uses numpy) so it is 
>>>>> trivial to install and fully cross-platform, but not as fast as 
>>>>> some other options.
>>>>>
>>>>> Overview:
>>>>> RO.Sph: handles computations in spherical coordinates (e.g. RA/Dec 
>>>>> to Az/Alt). RO.Sph.coordConv is the "do it all" routine. It also 
>>>>> has angSideAng, a routine to handle spherical geometry 
>>>>> computations, and routines to convert between spherical and 
>>>>> cartesian coordinates.
>>>>> RO.Cnv: handles computations in cartesian coordinates; this is 
>>>>> where most of the real computations are performed
>>>>> RO.Tm: handles various time computations
>>>>>
>>>>>
>>>>> -- Russell
>>>>>
>>>>> On Dec 28, 2009, at 8:40 AM, Wayne Watson wrote:
>>>>>
>>>>>> See Subject. I'm looking for something like the methods described in
>>>>>> Meeus' Astro Formulae for Calculators. Something too that provides
>>>>>> rotation matrices,  calculations to find sidereal time, and  az
>>>>>> equal-distance projections.
>>>>>
>>>>>
>>>>
>>>> -- 
>>>>         Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>>>>
>>>>           (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
>>>>            Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 
>>>> feet                             "... humans'innate skills with 
>>>> numbers isn't much
>>>>            better than that of rats and 
>>>> dolphins."                       -- Stanislas Dehaene, 
>>>> neurosurgeon                    Web Page: <www.speckledwithstars.net/>
>>>>
>>>
>>>
>>
>> -- 
>>          Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>>
>>            (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
>>             Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 
>> feet                              "We're leaving you with a world 
>> that runs like
>>              clockwork. And the clock it runs like is a cuckoo
>>              clock." -- Frank Oppenheimer, physicist
>>                   Web Page: <www.speckledwithstars.net/>
>>
>
>

-- 
           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)

             (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
              Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 feet  
                
              "We're leaving you with a world that runs like
               clockwork. And the clock it runs like is a cuckoo
               clock." -- Frank Oppenheimer, physicist
 
                    Web Page: <www.speckledwithstars.net/>



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