[AstroPy] numarray pdf 1.5 is broken. Using numdisplay, Python, PIL, and Tkinter

Wayne Watson sierra_mtnview@sbcglobal....
Tue Apr 7 20:26:25 CDT 2009


Hi, now that this is solved I curious why you hit upon the namespace idea?

Cohen-Tanugi Johann wrote:
> looks like you have a conflict of namespace.
> Do
> import matplotlib as mpl
>
> and then
> mpl.figure()
>
> Johann
>
> Wayne Watson wrote:
>> This balked at the fig= line
>>
>>     ntuser/fun-pyfits.py", line 6, in <module>
>>         fig = figure()
>>     TypeError: 'module' object is not callable
>>
>> I'm using image = pyfits.getdata('mpl51.fits'), and that's OK.
>>
>> Thomas Robitaille wrote:
>>> Have you tried matplotlib? For example:
>>>
>>> from matplotlib import figure
>>> import pyfits
>>>
>>> image = pyfits.getdata('lena.fits')
>>>
>>> fig = figure()
>>> ax = fix.add_subplot(111)
>>> ax.imshow(image)
>>> fig.canvas.draw()
>>>
>>> You can use matplotlib to do interactive stuff. If you really want 
>>> to use Tkinter to display FITS images, I can send you an example.
>>>
>>> Best,
>>>
>>> Thomas
>>>
>>> On 6 Apr 2009, at 08:32, Wayne Watson wrote:
>>>
>>>> Hi, it must be than that the version of the pyfits user manual I found
>>>> is out of date, since it talks about numarray.
>>>> I just wanted to confirm that I understood the role of ds9, which 
>>>> is as
>>>> you essentially wrote, is a program and not a python module.
>>>> I just found the numpy manual, Dec. 7, 2006, by Oliphant. Is that the
>>>> current one? It mentions fits once, and image about 5 times (mostly as
>>>> what seems to be a module). Here are a few lines from the manual:
>>>>
>>>>    • nd image –> scipy.ndimage
>>>>    • convolve –> scipy.stsci.convolve
>>>>    • image –> scipy.stsci.image
>>>>    If you don’t want to install all of scipy, you can grab just these
>>>>    packages from SVN
>>>>    using
>>>>
>>>>
>>>> imshow is not found in it. The manual is close to 350 pages. I 
>>>> certainly
>>>> don't want to print it if it doesn't meet my needs. To put it in terms
>>>> of Python, consider:
>>>>
>>>> import Image
>>>> im = Image.open("lena.ppm")
>>>> print im.format, im.size, im.mode
>>>> im.show()
>>>>
>>>> I'm looking for a capability somewhat like that above for fits, and 
>>>> not
>>>> ppm. show is pretty primitive, but the the idea is that I want this
>>>> little program to display lena.fits.
>>>>
>>>>
>>>> Cohen-Tanugi Johann wrote:
>>>>> hi Wayne, I am not sure I understand your request, but :
>>>>> 1) numarray is obsolete, use numpy.
>>>>> 2) ds9 is meant to display fits image, it has nothing to do with
>>>>> internet AFAIK. You also have FV from HEASARC.
>>>>> 3) if you need to just visualize a fits image as an array, you have
>>>>> several possibilities in numpy : imshow, pcolor, etc.... check the
>>>>> user(s guide.
>>>>>
>>>>> HTH,
>>>>> Johann
>>>>>
>>>>> Wayne Watson wrote:
>>>>>> I tried downloading the numarray from the web and Acrobat burped. It
>>>>>> came up with an error. Where is the official site for it?
>>>>>>
>>>>>> It appears to display a fits image one must either use numdisplay or
>>>>>> some combo of numarray and Python's PIL and a GUI like Tkinter. I
>>>>>> really want to use Python in such a manner if it is possible. From
>>>>>> what little I know about DS9, it is an internet viewer.
>>>>>> -- 
>>>>>> Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>>>>>>
>>>>>> (121.01 Deg. W, 39.26 Deg. N) GMT-8 hr std. time)****
>>>>>>
>>>>>> "Less than all cannot satisfy Man." -- William Blake
>>>>>> ------------------------------------------------------------------------ 
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> AstroPy mailing list
>>>>>> AstroPy@scipy.org
>>>>>> http://mail.scipy.org/mailman/listinfo/astropy
>>>>>
>>>>
>>>> -- 
>>>>
>>>>           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>>>>
>>>>             (121.01 Deg. W, 39.26 Deg. N) GMT-8 hr std. time)****
>>>>
>>>>          "Less than all cannot satisfy Man." -- William Blake
>>>>
>>>>
>>>> _______________________________________________
>>>> AstroPy mailing list
>>>> AstroPy@scipy.org
>>>> http://mail.scipy.org/mailman/listinfo/astropy
>>>
>>>
>>
>> -- 
>>            Wayne Watson (Watson Adventures, Prop., Nevada City, CA)
>>
>>              (121.01 Deg. W, 39.26 Deg. N) GMT-8 hr std. time)****
>>
>>           "Less than all cannot satisfy Man." -- William Blake
>>           
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> AstroPy mailing list
>> AstroPy@scipy.org
>> http://mail.scipy.org/mailman/listinfo/astropy
>>   
>

-- 

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

             (121.01 Deg. W, 39.26 Deg. N) GMT-8 hr std. time)****

          "Less than all cannot satisfy Man." -- William Blake
          



More information about the AstroPy mailing list