To make USA-county.txt
---------------------
/bin/rm HI.txt.temp
/bin/rm AK.txt.temp
cat [A-Z][A-Z].txt.temp >! USA-county.txt


County vs. State names
----------------------
Two counties have the same name as their state (Hawaii and New York).


Modify 51stbna data as follows to match uselectionatlas.org
-----------------------------------------------------------
Remark: some counties in 51stbna end with "city", "City", or
"Parish", but no corresponding ending in uselectionatlas.org.
So strip these endings in VoteTally.java.


CO00.BNA
--------
CO00.BNA is ST_LOW48.BNA

CO02.BNA
--------
CO02.BNA is cat of CO02AW.BNA and CO02X.BNA

FL.txt
------
uselectionatlas.org calls it both DeSoto (2004) and desoto (2000)
so case sensitive matching will not work.

uselectionatlas.org calls it both Miami-Dade (2004) and Dade (1992)


HI.txt
------
15001 Hawaii County
15003 Honolulu County  (128 points)
15005 Kalawao County -> Maui  (unclear whether it's a county)
15007 Kauai County
15009 Maui County

???
15 = Honolulu
15005 = overseas

CO17.BNA (Illinois IL)
----------------------
La Salle -> LaSalle

CO18.BNA (Indiana IN)
--------------------
La Porte -> LaPorte
De Kalb -> DeKalb

CO30.BNA (Montana)
------------------
Yellowstone National Park -> Yellowstone

CO35.BNA (New Mexico)
---------------------
DeBaca -> De Baca

CO51.BNA (Virginia)
-------------------
Clifton Forge and South Boston were independent cities in 2000 Census,
but reincorporated as town. Removed.

CO51.BNA (Virginia) has districts with holes. I rearranged
the counties so that the districts with holes appear first.








TIGER
-----

http://www.census.gov/tiger/boundary/


The program can output two different varieties of BNA files, one in 
  which the islands (i.e. the holes) are output as separate geographic 
  features (you determine whether a feature is a hole by looking at the 
  direction it traverses its bounded area--also "island" is given as the 
  name field of the feature's first line).  That is the format expected by 
  Atlas Pro (and, I suspect, all other Strategic Mapping products).  The 
  other variety appends the coordinates of the islands to the original 
  area; it traverses the outer boundary of the region clockwise, then 
  jumps to an inner boundary (island), traverses it counterclockwise, and 
  jumps back to the same point on the outer boundary.  This format is 
  supported by Tactician, another rather strange desktop mapping program 
  for Macintoshes.  [By the way, my boss is the one who likes Macs.  I use 
  one (in addition to DOS and UNIX machines), and I even write code for 
  them, but don't confuse me with a Mac fanatic.]

BNA Format 
This format is very similar to the NUM format, and it is described as follows:
Each "geographical object" is associated with an Identifier and a Name.
Each "geographical entity" is a set of geographical objects that have the same identifier.
The first line of description of an entity is as follows: 
         name,identifier,number_of_points
The following lines describe the points of the entity: 
          x,y 
          x,y ....
Entities with several objects separate the objects by the coordinates of the first point.

Example: 
Map containing a simple entity (a) and another with 3 polygons (b):

First,a,5
10,10
10,20
20,20
20,10
10,10
Second,b,11
40,40
40,50
50,50
50,40
40,40            (end of the first surface)
140,40
140,50
150,50
150,40
140,40           (end of the second surface)
40,40            (surface separator)
240,40
240,50
250,50
250,40
240,40           (end of the third surface)
40,40            (surface separator)