The Atlas .BNA file is used to store geographic information including areas, curves, and points. This format is not commonly used in Grapher.
Alternate BNA Format
"Pname 1", "Sname 1", type/length, x1, y1, x2, y2, x3, y3, ... xn, yn
"Pname 2", "Sname 2", type/length, x1, y1, x2, y2, x3, y3, ... xn, yn
Example 1: Polygon
This is an example of a polygon. The polygon has both a Primary and Secondary ID.
"CO","Colorado",7
-102.073,37.0033
-103.015,37.01
-103.106,37.01
-109.064,37.0033
-109.08,41.0091
-102.081,41.0157
-102.073,37.0033
Example 2: Curve
This is an example of a curve. In this example, this curve does not have a Primary or Secondary ID, although they can be assigned for curves by typing the information in the BNA file.
"","",-10
535.954,1681.83
541.209,1241.31
1166.1,1466.83
672.581,1723.87
604.268,1351.66
1260.25,1089.36
1260.25,1571.92
535.954,1792.18
132.202,1262.33
1260.25,837.565
Example 3: Point
This is an example of a point. The point has both a Primary and Secondary ID.
"Well HA-11"," Hansford Field",1
-104.351,37.847
See Also