In this script, we look for Segy files in a directory. Each Segy file is indexed as a 2D line.

This script is attached to the bottom of this page.

In this example, the CDPX and CDPY represent the X and Y coordinates of each trace.

If a scaler needs to be applied, the "multipler type" needs to be changed for accurate X and Y values.

For example, to use the LOC SCALER header:

indexer.setXyMultiplierType('Field')

indexer.setXyMultiplierFieldName("LOC SCALER")

To use a fixed-value scaler:

indexer.setXyMultiplierType('Fixed')

indexer.setXyFixedMultiplier("-100")

The scaler rules mimick the rules followed by the Segy format:

• if the scaler is negative, the values of the CDPX and CDPY headers are divided by the absolute value of that scaler
• if the scaler is positive, the values of the CDPX and CDPY headers are multiplied by that scaler

This script assumes that the CDPX and CDPY headers are at their standard location (byte offset 181 and 185) and have a standard format (4-byte int). To customize the mapping, use the setMappingFilePath method to point to a mapping file. An example of using a mapping file is available in Indexing Multiple Volumes