casa6

import sys

import os

import string

import time

import viewertool

from casa_stack_manip import stack_frame_find

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class __viewer_class(object):

    "viewer() task with local state for created viewer tool"

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    def __init__( self ):

        self.local_vi = None

        self.local_ving = None

​

    def __call__(self, infile=None,displaytype=None,channel=None,zoom=None,outfile=None,outscale=None,outdpi=None,outformat=None,outlandscape=None,gui=None):

        """ The viewer will display images in raster, contour, vector or

        marker form.  Images can be blinked, and movies are available

        for spectral-line image cubes.  For measurement sets, many

        display and editing options are available.

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        examples of usage:

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        viewer

        viewer "myimage.im"

        viewer "mymeasurementset.ms"

        viewer "myrestorefile.rstr"

        viewer "myimage.im", "contour"

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        viewer "'myimage1.im' - 2 * 'myimage2.im'", "lel"

        The viewer can be run outside of casapy by typing <casaviewer>.

​

        Executing viewer <viewer> will bring up a display panel

        window, which can be resized.  If no data file was specified,

        a Load Data window will also appear.  Click on the desired data

        file and choose the display type; the rendered data should appear

        on the display panel.

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        A Data Display Options window will also appear.  It has drop-down

        subsections for related options, most of which are self-explanatory.

        The state of the viewer -- loaded data and related display

        options -- can be saved in a 'restore' file for later use.

        You can provide the restore filename on the command line or

        select it from the Load Data window.

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        See the cookbook for more details on using the viewer.

        Keyword arguments:

        infile -- Name of file to visualize

            default: ''

            example: infile='ngc5921.image'

            If no infile is specified the Load Data window

            will appear for selecting data.

        displaytype -- (optional): method of rendering data

            visually (raster, contour, vector or marker).  

            You can also set this parameter to 'lel' and

            provide an lel expression for infile (advanced).

            default: 'raster'

            example: displaytype='contour'

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        Note: there is no longer a filetype parameter; typing of