Whisker lines are lines going some distance from a selected point in a given bearing and opposite bearing, a line centered on the point of some length in some bearing. These are usedl in seismic surveys to determine the coverage of seismic survey points.
The Create Whisker Lines from Points tool is
found under the Advanced Feature
Creation Options submenu of the right-click Digitizer
Tool menu. To activate this option in the Advanced Feature Creation Options
menu, you must first select a point feature or features with the Digitizer
Tool. Once activated, you will then be prompted to enter the bearing and
length in one direction of the whisker line using the dialog below.
The opposite direction will be added to the whisker line as well.