Draw_Map

Author

Jeff Wang, MCNC, Environmetal Programs Group 

Description

This module allows users to draw the United States map with state boundary and county boundary. With the distribution of the module, two map data files are also included.

allcounty.txt:

ASCII data for boundaries of ALL counties in the United States, including Alaska, Hawaii and Puerto Rico.

countryd.txt:

ASCII data for boundaries of the states.

Users may construct their own boundary map according to the format. For example, the boundary of a unit square area can be constructed as the following:

	"00001",5
	-1.0,-1.0
	 1.0,-1.0
	 1.0, 1.0
	-1.0, 1.0
	-1.0,-1.0

At this stage, the module only takes LAT/LON data and converts it to UTM coordinate before output to geometry viewer.

Input Data:

Name of the state and county boundary file The SW corner (in UTM coordinate) of the map The NE corner (in UTM coordinate) of the map The UTM zone

Output data: Geom

This module belongs to a group of modules submitted to the International 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

minmax:

To find out the min and max value of a field

Network

An example network is shown below:

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