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 Surfer.
Alternate BNA Format
"Pname 1", "Sname 1", type/length, x1, y1, x2, y2, x3, y3, ... xn,
"Pname 2", "Sname 2", type/length, x1, y1, x2, y2, x3, y3, ... xn,
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 Import Automation Options
Atlas Boundary File Export Automation Options
Atlas Boundary File Export Options Dialog
Data File Formats
Open Worksheet Data
Saving Worksheet Data