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,

ClosedExamples 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