CyberResearch CVBF 21C, User Manual

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C
Y
RAQ
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21
CyberResearch
®
Displays
11. Click OK
12. Restart your computer before continuing with section 4.2.
4.2 Calibration
4.2.1 Calibration Options:
Three point calibration:
Quick calibration of a known good touchscreen overlay. May
be used to evaluate, test or verify actual touchscreen linearity.
ƒ
No correction.
Four Point Calibration (Default):
Will compensate for skew, and some edge linearity
anomalies.
ƒ Best for general calibration.
Seven Point Calibration
: More accurate than 3 point calibration. Helps calibrate screen
to the edges.
ƒ No correction.
Twenty Point Calibration
: Provides the highest level of touchscreen linearization and
skew correction. Should be used to get the best possible calibration
ƒ May be used to extend the life of a failing touchscreen.
Calibration Offset
: Because of the varied linearity that exists between touchscreen
types, you may want to calibrate the edges of the touchscreen more precisely. Experiment
with this setting to find the best result.
ƒ
Default is 20%.
ƒ Select the large target to calibrate.
4.2.2
Configure Calibration Settings
Generally speaking, the default setting of 4 Point Calibration is quite accurate for most
applications.
It is recommended the user try this default setting before configuring
calibration with a different setting.
If adjustments need to be made, use the procedure on
the next page:
36 ©
Copyright 2009
CyberResearch, Inc