This is a display program for X11, contributed by Andrew Vesper of DEC.

Flags are mostly the same as for getX, with the addition of the annotatition
flags.  These appear to work as follows:

You use "getX11 -A anno_file" to create an annotation file.  After getX11
displays the image, you can click points on the image.  After each click,
you will be prompted for an annotation for that point.

If you display an image with "getX11 -a anno_file" then when you click
the appropriate place on the image, the annotation you created for that
point is displayed in the bottom of the window.

A useful extension would be allowing the annotations to be stored in a
picture comment of the RLE file, instead of a separate file.

Since we (Utah) don't have X11 running yet, this code is supplied "as is".
If time and resources permit, it may be eventually merged in with the
original getX (e.g., features like the zoom window).

jwp.

Usage comments taken from the source:

 * Usage:
 *	getX11 [-F] [-D] [-d display] [-= window-geometry] [-l levels] [-z]
 *		[-{iI} gamma] [-g gamma] [-v visualtype] [-n] [-b] [-m] 
 *		[-a annotation-file] [-A new-annotation-file] [-o origin] 
 *		[-f font-name] [file]
 * Inputs:
 * 	-F:		Don't fork after putting image on screen.
 *	-D:		Debug mode: print input file as read.
 *	-b:		bitonal; binary black and white
 *	-m:		Black & white: reduce color images to monochrome before
 *			display.  Advantage is that smoother shading can
 *			be achieved.
 *	-d display:	Specify display name.
 *	-= window_geometry:
 *			Specify window geometry (but min size set by file).
 *	-i gamma:	Specify gamma of image. (default 1.0)
 *	-I gamma:	Specify gamma of display image was computed for.
 *	-g gamma:	Specify gamma of display. (default 2.5)
 *	-v visual_type: specify visual type to be used (integer, 0 to 5)
 *	-l levels:	number of levels to display of each color
 *	-z:		hold all output, then blast it all out at once
 *	-n:		Do not dither
 *	-a file		annotation file name
 *	-A file		output annotation file name
 *	-o origin	specifies origin: `top-left',`top-right', `bottom-left'
 *			or `bottom-right'
 *	-f font-name	font name for annotation
 *	file:		Input Run Length Encoded file. Uses stdin if not
 *			specified.
 *
 * 	getX11 will also read picture comments from the input file to determine
 *			the image gamma.  These are
 *
 *	image_gamma=	gamma of image (equivalent to -i)
 *	display_gamma=	gamma of display image was computed for.
 *	origin=		`top-left',`top-right', `bottom-left' or `bottom-right'
 *		
 *	Any command line arguments override the values in the file.
