Atlas Boundary (BNA) Examples

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

 

Examples of the Format for Different Objects

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

Atlas Boundary File Description

Atlas Boundary File Export Options Dialog