casa6

def selectfield(vis,minstring):

        """Derive the fieldid from  minimum matched string(s): """

​

        tb.open(vis+'/FIELD')

        fields=list(tb.getcol('NAME'))#get fieldname list

        tb.close()              #close table

        indexlist=list()        #initialize list

    stringlist=list()

​

        fldlist=minstring.split()#split string into elements

    print 'fldlist is ',fldlist

        for fld in fldlist:     #loop over fields

                _iter=fields.__iter__() #create iterator for fieldnames

                while 1:

                        try:

                                x=_iter.next() # has first value of field name

                        except StopIteration:

                                break

                        #

                        if (x.find(fld)!=-1): 

                indexlist.append(fields.index(x))

                stringlist.append(x)

​

    print 'Selected fields are: ',stringlist

        return indexlist

​

def selectantenna(vis,minstring):

        """Derive the antennaid from matched string(s): """

​

        tb.open(vis+'/ANTENNA')

        ants=list(tb.getcol('NAME'))#get fieldname list

        tb.close()              #close table

        indexlist=list()        #initialize list

    stringlist=list()

​

        antlist=minstring.split()#split string into elements

        for ant in antlist:     #loop over fields

            try:

            ind=ants.index(ant)

            indexlist.append(ind)

            stringlist.append(ant)

                except ValueError:

                        pass

​

    print 'Selected reference antenna: ',stringlist

    print 'indexlist: ',indexlist

        return indexlist[0]

​

def readboxfile(boxfile):

    """ Read a file containing clean boxes (compliant with AIPS BOXFILE)

​

    Format is:

    #FIELDID BLC-X BLC-Y TRC-X TRC-Y

    0       110   110   150   150 

    or

    0       hh:mm:ss.s dd.mm.ss.s hh:mm:ss.s dd.mm.ss.s

​

    Note all lines beginning with '#' are ignored.

​

    """

    union=[]

    f=open(boxfile)

    while 1:

        try: 

            line=f.readline()

            if (line.find('#')!=0): 

                splitline=line.split('\n')

                splitline2=splitline[0].split()

                if (len(splitline2[1])<6): 

                    boxlist=[int(splitline2[1]),int(splitline2[2]),

                    int(splitline2[3]),int(splitline2[4])]

                else:

                    boxlist=[splitline2[1],splitline2[2],splitline2[3],

                    splitline2[4]]

                union.append(boxlist)

        except:

            break

​

    f.close()

    return union

​

​

def array2string( array ):

    returnValue=""

    for i in range( len(array) ):

        if ( i > 1 ):

            returnValue+=","

        if ( isinstance( array[i], str ) ):

            returnValue+=array[i]