casa: task_listobs.py Source File

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00001 import os
00002 from taskinit import *
00003 
00004 
00005 def listobs(vis=None, 
00006             selectdata=None,
00007             spw=None,           
00008             field=None,
00009             antenna=None,
00010             uvrange=None,
00011             timerange=None,
00012             correlation=None,
00013             scan=None,
00014             intent=None,
00015             feed=None,
00016             array=None,
00017             observation=None,
00018             verbose=None, 
00019             listfile=None):
00020     
00021     """List data set summary in the logger:
00022 
00023        Lists following properties of a measurement set:
00024        scan list, field list, spectral window list with
00025        correlators, antenna locations, ms table information.
00026 
00027        Keyword arguments:
00028        vis -- Name of input visibility file
00029                default: none. example: vis='ngc5921.ms'
00030        selectdata -- select data from the MS
00031        verbose -- level of detail
00032              verbose=True: (default); scan and antenna lists
00033              verbose=False: less information
00034        listfile -- save the output in a file
00035              default: none. Example: listfile="mylist.txt"
00036 
00037        """
00038 
00039     casalog.origin('listobs')
00040 
00041        # Python script
00042        # parameter_printvalues(arg_names,arg_values,arg_types)
00043     try:
00044         if (type(vis) == str) & os.path.exists(vis):
00045             ms.open(thems=vis)
00046         else:
00047             raise Exception, \
00048                 'Visibility data set not found - please verify the name'
00049                 
00050         sel = {}
00051         if (selectdata):
00052             sel['spw'] = spw
00053             sel['time'] = timerange
00054             sel['field'] = field
00055             sel['baseline'] = antenna
00056             sel['scan'] = scan
00057             sel['scanintent'] = intent
00058             sel['polarization'] = correlation
00059             sel['uvdist'] = uvrange
00060             sel['observation'] = str(observation)
00061             sel['array'] = array
00062             sel['feed'] = feed
00063 
00064         # Select the data. Only-parse is set to false.
00065         ms.msselect(sel, False)
00066             
00067         ms.summary(verbose=verbose, listfile=listfile)
00068 
00069         ms.close()
00070     except Exception, instance:
00071         ms.close()
00072         print '*** Error ***', instance
00073 
00074