[yt-users] problem writing fits image

Juan Camilo Ibanez Mejia jibanezmejia at amnh.org
Thu Jul 24 14:38:19 PDT 2014


Sure I will,

I am trying to feed some data into disperse to do some filaments analysis and needed the data to be in FITS format. I’ll let you know how is it working after I generate some images and do some work on them.

cheers,

Juan

_____________________________
Juan Camilo Ibañez Mejia
PhD candidate in physics
Institute für Theoretische Astrophysik
Heidelberg University
jibanez at zah.uni-heidelberg.de<mailto:jibanez at zah.uni-heidelberg.de>

Research Scholar
Department of Astrophysics
American Museum of Natural History
+1-212-313-7435
jibanezmejia at amnh.org<mailto:jibanezmejia at amnh.org>
_____________________________

On Jul 24, 2014, at 11:36 PM, John ZuHone <jzuhone at gmail.com<mailto:jzuhone at gmail.com>> wrote:

Juan,

That's great!

Not really anyone besides me as far as I know has used it, so let me know how it works for you.

Best,

John

On Jul 24, 2014, at 5:35 PM, Juan Camilo Ibanez Mejia <jibanezmejia at amnh.org<mailto:jibanezmejia at amnh.org>> wrote:

Hi Nathan and John,

that was the problem, now is working fine, thanks.

Juan

_____________________________
Juan Camilo Ibañez Mejia
PhD candidate in physics
Institute für Theoretische Astrophysik
Heidelberg University
jibanez at zah.uni-heidelberg.de<mailto:jibanez at zah.uni-heidelberg.de>

Research Scholar
Department of Astrophysics
American Museum of Natural History
+1-212-313-7435
jibanezmejia at amnh.org<mailto:jibanezmejia at amnh.org>
_____________________________

On Jul 24, 2014, at 11:07 PM, Nathan Goldbaum <nathan12343 at gmail.com<mailto:nathan12343 at gmail.com>> wrote:

Hi Juan,

Do you have astropy installed?  This error indicates that python was was unable to import astropy when it imported yt.

-Nathan


On Thu, Jul 24, 2014 at 2:03 PM, Juan Camilo Ibanez Mejia <jibanezmejia at amnh.org<mailto:jibanezmejia at amnh.org>> wrote:
Dear yt users,

I was trying to generate a FITS file from one of my simulations but I obtained an error I
do not understand and do not know how to solve. I followed the procedure in:
http://yt-project.org/docs/dev-3.0/visualizing/writing_fits_images.html
and in the moment I call fib = FITSImageBuffer(cvg, fields=["density"])
I obtain the error:


---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-87-25a548a040e2> in <module>()
----> 1 fib = FITSImageBuffer(cvg, fields=["density"])

/home/jcibanezm/codes/yt30/yt-x86_64/src/yt-hg/yt/utilities/fits_image.pyc in __init__(self, data, fields, units, center, scale, wcs)
    104                 mylog.info("Making a FITS image of field %s" % (key))
    105                 if first:
--> 106                     hdu = pyfits.PrimaryHDU(np.array(img_data[key]))
    107                     first = False
    108                 else:

AttributeError: 'NoneType' object has no attribute 'PrimaryHDU'


Any idea how can I solve this ?

thanks in advance

Juan

_____________________________
Juan Camilo Ibañez Mejia
PhD candidate in physics
Institute für Theoretische Astrophysik
Heidelberg University
jibanez at zah.uni-heidelberg.de<mailto:jibanez at zah.uni-heidelberg.de>

Research Scholar
Department of Astrophysics
American Museum of Natural History
+1-212-313-7435<tel:%2B1-212-313-7435>
jibanezmejia at amnh.org<mailto:jibanezmejia at amnh.org>
_____________________________


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