6.7.2.2
Tools
The Tools property page provides the following information and functions which are selected by pressing the push buttons.
NOTE: Your touch screen is configured and calibrated at the factory. However, if you notice that the calibration is not as
precise as you would like, you can use the 4 Points Calibration and/or the Linearization tool to provide a more accurate
alignment of the touch screen.
·
Graph of the Linearization Curve of the touch screen – for reference and troubleshooting purposes. See its
usage in the discussion of the Linearization function.
·
4 Points Calibration – Calibration aligns the touch panel with the video screen. The touch screen must be
calibrated to allow for positional accuracy of the stylus or finger touch inputs.
·
Clear and Calibrate – Clears the calibration/linearization parameters and allows you to perform the 4 points
calibration again.
·
Linearization (9 or 25 points linearization is set within the
169H
Setting tab) – the linearization function provides for
more precise mapping of the stylus or finger touch inputs. After linearization is completed, the linearity of the
touch screen will be shown in the Linearization Curve window.
·
Draw Test - used for accuracy and performance checking.
.
1.
4 Points Calibration
The touch screen must be calibrated before it can work accurately. This function pops up a new window to guide
you through the 4 points calibration. You should follow the guide to touch and hold the blinking X symbol in the
calibration window until it does not blink to make sure that the utility can gather enough data for computation. In
addition, a time line bar is shown in the bottom of the window to indicate time elapsed. If the touch screen is not
touched before the time line bar reaches the right end, the calibration task will be terminated automatically.
2.
Linearization
This function provides for more accurate touch screen positional alignment. The linearization function pops up a new
window to guide you through the 9 or 25 points calibration. Configuring the function for 9 or 25 points calibration is
