5.2
Setting the parameters in the X Configuration Tool
When using the Tobii X2 Eye Tracker without being mounted on a standard laptop or monitor, you must specify all the positioning
parameters in the X Configuration Tool, as described below:
1.
U
Unniittss::
—
Select the unit you want to use for measuring the distances: inches or centimeters.
2.
Perform the measurements and enter the corresponding values, as described below:
•
A
Accttiivvee D
Diissp
pllaayy S
Siizzee
—
The correct display or stimuli size must always be added in the X Configuration Tool. The Ac-
tive Display Area is represented by the area on which the calibration is performed.
–
For monitors, TV screens and other displays, measure the size of the visible active area on the screen where you
can see the actual image (see the following image):
–
For projected displays, measure the size of the visible projection on the display (see the following image).
–
In a setup where the stimuli are filmed by a scene camera, the active display area must be calculated based on
the calibration grid size. The calibration grid must have the same shape as the calibration pattern used in Tobii
16
5 The X Configuration Tool
Tobii X2-30 Eye Tracker User
’
s manual v.1.0.3 - en-US
