	This module allows users to set the coordinate of the "zoom box" and
UTM zone of the view area.

	This module belongs to a group of modules submitted to the Inter- 
national AVS Center for displaying points, lines and polygons over a map of the
United States. The group of the modules includes:

	AFSextract: 	 	Extracting AFS Format Data
	AMSextract:		Extracting AMS Format Data
	LBFextract:		Extracting Link Base Mobile Data
	field_to_points:	Plot 3D points with color mapping
	field_to_lines:		Plot 3D lines with color mapping
	field_to_polygons:	Plot 3D polygons with color mapping
	getmap:			Plot political boundary of states and
				countys in the United State
	geomreset:		Reset and normalize the geometry viewer
				automatically
	zoomer:			A driver to allow zoom in and out to a 
				particular geographical area
	resetlegend:		To reset the position and size of ithe color 
				legend if usedirregulr


	An example network is shown below:

			
				zoomer
			 	|||||
 				getmap
				   |
				geometry viewer
				   |
				geom reset 


	Contact person: Jeff Wang, MCNC/NCSC, (919)-248-9242
