Certain unexploded ordnance (UXO) designs use the locations of anomalies, which are responses from magnetometers or electromagnetic (EM) detectors. The locations of these anomalies are stored in a text file, often referred to as an Anomaly file.
Anomaly files have the following format:
/ ------------------------------------------------------------------------------
/ Comments
/ ------------------------------------------------------------------------------
/
/Fiducial,X,Y,Grid_value
Other comments
0,10815.3000,9930.3000,52.100000
1,10817.3000,10207.8000,11.880000
2,10815.3000,10777.3000,28.190000
3,10816.3000,11049.3000,73.050000
4,10814.8000,11089.0000,48.960000
The file typically contains initial comments lines. Comment lines often begin with the character: /. They can also begin with a letter or they may also be completely blank. Regardless of the format of the comment line, VSP ignores them.
A data line contains at least three numbers. The first number is a unique ID. The second and third numbers represent the x and y coordinates of the anomaly location. The line typically contains a fourth number that represents the detector response at the location. (VSP currently ignores this number.) The numbers are typically separated by commas, but VSP also recognizes spaces and tab characters.
Note that VSP creates Manual Samples to represent anomalies and ignores locations outside of defined Sample Areas.