Dell Latitude E6420 XFR, Setup And Features Information

Dell Latitude E6420 XFR Setup and Features Information

Page 16

       |      eGalaxTouch Configuration Utility

Tools

The Tools property page provides the following information and functions.

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 “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 accessed in the 

“Setting” tab. 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 the 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.

3 

Draw Test 

This function is used for accuracy and performance checking. You can use the stylus or 

finger touch to draw or write across the displayed area. 

You can press the Clear button to clear the window. Press the Quit button to terminate the 

draw test.