casa6

from casac import casac

im=casac.imager()

ia=casac.image()

rg=casac.regionmanager()

import os 

import shutil

​

def drawmaskinimage(image='', maskname='maskoo', makedefault=True):

    """

    Till casa think graphical interaction is important.

    Ugly Function that uses interactive clean image mask  to 

    allow users to draw a mask and store it as a bit mask in the image 

    so it can be used by imageanalysis methods or to mask an image

​

    Parameters

​

    image: is the image to put a bit mask in

    maskname: name of bit mask 

    makedefault: if True will make new bit mask drawn be the default mask

​

    """

    if(not os.path.exists(image)):

        return

    tmpmaskimage='__muluktani'

    if(os.path.exists(tmpmaskimage)):

        shutil.rmtree(tmpmaskimage, True)

    im.drawmask(image=image, mask=tmpmaskimage)

    ia.open(image)

    ia.calcmask(mask='__muluktani < 0.5', name=maskname, asdefault=makedefault)

    ia.done()

    print 'regions/mask in ', image, rg.namesintable(image)

    shutil.rmtree(tmpmaskimage, True)