viewer

Synopsis View an image or visibility data set: Description

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.

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.

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.


Inputs
infile	(Optional) Name of file to visualize.
	allowed:	string
	Default:	.
displaytype	(Optional) Type of visual rendering (raster, contour, vector or marker). lel if an lel expression is given for infile (advanced).
	allowed:	string
	Default:	raster
connection	(Optional) Return a connection object for the newly opened viewer.
	allowed:	bool
	Default:	False

examples of usage:

viewer
viewer "myimage.im"
viewer "mymeasurementset.ms"
viewer "myrestorefile.rstr"

viewer "myimage.im", "contour"

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

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’

Note: there is no longer a filetype parameter; typing of
data files is now done automatically.
example: viewer infile=’my.ms’
obsolete: viewer infile=’my.ms’, filetype=’ms’

0.1.78 viewer