[AstroPy] pywcs problem on Linux
OKUMURA, Akira
oxon at ceres.phys.s.u-tokyo.ac.jp
Wed May 6 09:14:19 EDT 2009
Hello Nadia,
Thank you for your reply. I didn't know that new version has been
released recently. I installed pywcs-1.4-4.3.tar.gz and tried test.py
in the package. But I got errors again.
1)
$ ./test.py .
=
=
=
========================================================================
./cmap.fits
zsh: segmentation fault ./test.py .
the line wcs.wcs.fix() causes the seg fault.
2) comment out wcs.wcs.fix()
$ ./test.py .
=
=
=
========================================================================
./cmap.fits
Traceback (most recent call last):
File "./test.py", line 82, in <module>
run_directory(directory)
File "./test.py", line 74, in run_directory
test_file(filepath)
File "./test.py", line 38, in test_file
world = wcs.wcs_pix2sky(data3)
File "/usr/local/lib/python2.5/site-packages/pywcs/pywcs.py", line
419, in wcs_pix2sky
*args, **kwargs)
File "/usr/local/lib/python2.5/site-packages/pywcs/pywcs.py", line
378, in _array_converter
raise TypeError("Expected 2 or 3 arguments, %d given" % len(args))
TypeError: Expected 2 or 3 arguments, 1 given
I tried several FITS files but I got the same errors. Do you have any
idea?
Regards,
OKUMURA, Akira oxon at ceres.phys.s.u-tokyo.ac.jp
Department of Physics, The University of Tokyo
7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
TEL/FAX +81 3-5841-4173/4059
Skype : okumura.akira
On 2009/05/06, at 20:47, Nadezhda Dencheva wrote:
> Hi,
>
> You are running an older version of pywcs.
> I believe an upgrade to the latest release will fix this.
>
>
> Nadia Dencheva
>
> ---- Original message ----
>> Date: Wed, 6 May 2009 15:30:23 +0900
>> From: astropy-bounces at scipy.org (on behalf of "OKUMURA, Akira" <oxon at ceres.phys.s.u-tokyo.ac.jp
>> >)
>> Subject: [AstroPy] pywcs problem on Linux
>> To: astropy at scipy.org
>>
>> Hello all,
>>
>> I have installed pywcs in two environments.
>> (1) Scientific Linux 4.7 (64 bit)
>> + Python 2.5.4 (r254:67916, May 6 2009, 07:09:17)
>> + GCC 3.4.6 20060404 (Red Hat 3.4.6-10)] on linux2
>> + pyfits-1.3
>> + pywcs-1.3a1-4.3
>> (2) Red Hat Enterprise Linux 4 (32 bit).
>> + Python 2.5.1 (r251:54863, Aug 24 2007, 16:22:50)
>> + GCC 3.4.3 (TWW)] on linux2
>> + pywcs-1.3a1-4.3
>> + pyfits-2.1.1
>>
>> But I got following errors even though it runs properly on Mac OS X
>> 10.5.
>> === Error on (1) ===
>>>>> hdulist = pyfits.open("cmap.fits")
>>>>> wcs = pywcs.WCS(hdulist[0].header)
>> zsh: segmentation fault python
>>
>> === Error on (2) ===
>>>>> hdulist = pyfits.open("cmap.fits")
>>>>> wcs = pywcs.WCS(hdulist[0].header)
>> Traceback (most recent call last):
>> File "<stdin>", line 1, in <module>
>> File "/u/gl/oxon/tmp/lib/python2.5/site-packages/pywcs/pywcs.py",
>> line 155, in __init__
>> self.footprint = self._calcFootprint(header)
>> File "/u/gl/oxon/tmp/lib/python2.5/site-packages/pywcs/pywcs.py",
>> line 181, in _calcFootprint
>> return self.all_pix2sky(corners)
>> File "/u/gl/oxon/tmp/lib/python2.5/site-packages/pywcs/pywcs.py",
>> line 307, in all_pix2sky
>> return self._array_converter(self._all_pix2sky, *args, **kwargs)
>> File "/u/gl/oxon/tmp/lib/python2.5/site-packages/pywcs/pywcs.py",
>> line 294, in _array_converter
>> return func(args[0], **kwargs)
>> SystemError: Python/getargs.c:1246: bad argument to internal function
>>
>> Is there any tips on running pywcs with Linux ?
>>
>> The FITS is as follows.
>>
>>>>> print hdulist[0].header
>> SIMPLE = T / File conforms to NOST standard
>> BITPIX = 32 / Bits per pixel
>> NAXIS = 2 / No data is associated with this
>> header
>> NAXIS1 = 160 / Length of data axis 1
>> NAXIS2 = 160 / Length of data axis 2
>> EXTEND = T / Extensions may be present
>> COMMENT FITS (Flexible Image Transport System) format is defined in
>> 'Astronomy
>> COMMENT and Astrophysics', volume 376, page 359; bibcode:
>> 2001A&A...
>> 376..359H
>> CTYPE1 = 'GLON-AIT' / RA---%%%, %%% represents the
>> projection method
>> CRPIX1 = 80.5 / Reference pixel
>> CRVAL1 = 211. / RA at the reference pixel
>> CDELT1 = -0.25 / X-axis incr per pixel of physical
>> coord at posi
>> CUNIT1 = 'deg ' / Physical unit of X-axis
>> CTYPE2 = 'GLAT-AIT' / DEC---%%%, %%% represents the
>> projection method
>> CRPIX2 = 80.5 / Reference pixel
>> CRVAL2 = -17. / DEC at the reference pixel
>> CDELT2 = 0.25 / Y-axis incr per pixel of physical
>> coord at posi
>> CUNIT2 = 'deg ' / Physical unit of Y-axis
>> CROTA2 = 0. / Image rotation (deg)
>> DATE = '2009-04-01T15:34:22' / file creation date (YYYY-MM-
>> DDThh:mm:ss U
>> FILENAME= 'cmap.fits' /
>> TELESCOP= 'GLAST ' / name of telescope generating data
>> INSTRUME= 'LAT ' / name of instrument generating data
>> DATE-OBS= '2009-03-11T21:33:18.000' / start date and time of the
>> observation (U
>> DATE-END= '2009-03-17T16:26:38.000' / end date and time of the
>> observation (UTC
>> NDSKEYS = 5
>> EQUINOX = 2000. / Equinox of RA & DEC specifications
>> OBSERVER= 'Peter Michelson' / GLAST/LAT PI
>> CREATOR = 'gtbin ' / Software and version creating file
>> HISTORY LatCountMapTemplate,v 1.3 2005/04/05
>> 21:06:39 peachey
>> HISTORY Exp
>> CHECKSUM= 'c8JZf8JXc8JXc8JX' / HDU checksum updated
>> 2009-04-01T06:34:22
>> DATASUM = '182648 ' / data unit checksum updated
>> 2009-04-01T06:34:22
>> DSTYP1 = 'TIME '
>> DSUNI1 = 's '
>> DSVAL1 = 'TABLE '
>> DSREF1 = ':GTI '
>> DSTYP2 = 'POS(RA,DEC)'
>> DSUNI2 = 'deg '
>> DSVAL2 = 'CIRCLE(86.81257852,-6.005536809,20)'
>> DSTYP3 = 'CTBCLASSLEVEL'
>> DSUNI3 = 'dimensionless'
>> DSVAL3 = '3: '
>> DSTYP4 = 'ENERGY '
>> DSUNI4 = 'MeV '
>> DSVAL4 = '200:20000'
>> DSTYP5 = 'ZENITH_ANGLE'
>> DSUNI5 = 'deg '
>> DSVAL5 = '0:100 '
>>
>>
>> Regards,
>>
>> OKUMURA, Akira oxon at ceres.phys.s.u-tokyo.ac.jp
>> Department of Physics, The University of Tokyo
>> 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033
>> TEL/FAX +81 3-5841-4173/4059
>> Skype : okumura.akira
>>
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