[AstroPy] photometry in pyraf

Joe Philip Ninan indiajoe@gmail....
Tue Jan 10 00:56:38 CST 2012


Hi Sato,
I apologize for this long delay in replying to your help. (got stuck in
some technical issues)
Thanks a lot for your suggestion. My scripts are working by the setPar
tasks you suggested.
Loading defaults and then changing the required parameters was a good
suggestion to make script more robust.
Thanking you,
Joe


On 7 January 2012 21:09, Taro Sato <taro@ap.smu.ca> wrote:

> On Sat, Jan 7, 2012 at 3:23 AM, Joe Philip Ninan <indiajoe@gmail.com>
> wrote:
> > Hi,
> > I have been recently rewriting to pyraf all my photometry iraf scripts.
> > For using the daofind and then phot task in noan.digiphot.daophot we
> > first have to set the parameter files.
> > Following is that section from my code.
> > #--------------------(all the variables fwhm psfradi sigma datamin
> > aperture etc. have been defined before in code)---------
> >     iraf.daopar(matchra=fwhm, psfrad=psfradi, fitrad=fwhm)
> >     iraf.datapar(fwhmpsf=fwhm, sigma=sigma, datamin=datamin,
> > datamax=65000 , readnoi=4.8 , epadu=1.22 ,itime=intime,
> > ifilter=filterr)
> >     iraf.fitskypar(annulus=270, dannulu=12 )
> >     iraf.photpar(apertur=aperture)
> >     iraf.daofind(image=img)
> >     #Going forward to do phot
> >     iraf.phot(image=img)
> > #----------------------------------------------------
> > Now , when I run this code. It does displays the epar daopar, datapar
> > etc in the GUI epar window of the pyraf with all correct values set.
> > But when I press "Save & Quit" button and reaches the daofind or phot
> > task. It is executing without all the seted parameters.
> > It looks like inspite of me clicking on "Save & Quit" button. It is
> > not getting saved. and the phot and daofind task are using some
> > default setting in my uparm/
> > In iraf, I had the same problem if i gave :wq in epar. But if I gave
> > :w and then :q separately it used to work.
> > There is no :w equivalent button in pyraf's GUI epar window.
> >
> > Can somebody point out some workaround for this problem? Is it
> > possible in pyraf to get the non GUI epar window of iraf?
> > Thanking you
> > Joe
> >
> > --
> > /---------------------------------------------------------------
> > "GNU/Linux: because a PC is a terrible thing to waste" -  GNU Generation
> > _______________________________________________
> > AstroPy mailing list
> > AstroPy@scipy.org
> > http://mail.scipy.org/mailman/listinfo/astropy
>
>
> Not sure if this is the type of thing you wish to do, but since I
> don't trust (or remember) the exact behavior of which set of
> parameters gets actually used, my approach is to reset all parameters
> to default and override those I need to change.  The following is my
> template for using an IRAF task with PyRAF.  This won't prompt you to
> edit parameters on GUI though, if that's what you need to do...
>
> Hope this helps a tiny bit.
>
>
>
> ####### BEGIN ##########
>
> #!/usr/bin/env python
> from pyraf import iraf
> from pyraf.irafpar import IrafParList
>
> def default_irafpar(task):
>   # Return the IrafParList object for default parameters.
>   return IrafParList(task.getName(), parlist=task.getDefaultParList())
>
> def main():
>   # Load IRAF packages.
>   iraf.gemini(_doprint=0)
>   iraf.gmos(_doprint=0)
>
>   # Get default parameters and override some.
>   yes, no = 'yes', 'no'
>   plist = default_irafpar(iraf.gprepare)
>   plist.setParList(inimages = 'someimage.fits',
>                    rawpath = '/astro/data/',
>                    fl_addmdf = yes,
>                    mdfdir = '../mdf/',
>                    logfile = '',
>                    verbose = yes)
>
>   # Run the task.
>   iraf.gsprepare(ParList=plist)
>
>   return
>
> if __name__ == '__main__':
>   main()
>
> ######### END ###############
>
>
>
>
> --
> Taro Sato
> Department of Astronomy & Physics
> Saint Mary's University             email: taro@ap.smu.ca
> Halifax, NS B3H 3C3                 phone: (902)420-5018
> Canada                                web: http://ap.smu.ca/~taro
>



-- 
/---------------------------------------------------------------
"GNU/Linux: because a PC is a terrible thing to waste" -  GNU Generation

************************************************
Joe Philip Ninan    http://sites.google.com/site/jpninan/
Research Scholar        /________________\
DAA,                            | Vadakeparambil |
TIFR,                           | Pullad P.O.         |
Mumbai-05, India.      | Kerala, India      |
Ph: +917738438212   | PIN:689548       |
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