Test.LinearityDiagonal
This test verifies that the touchpad reports a straight line (that corresponds to contact movement) when a single contact is moved diagonally across the surface of a touchpad (within a tolerance of .5mm).
Test details
Associated requirements |
Device.Input.PrecisionTouchpad.Precision.Linearity Device.Input.PrecisionTouchpad.Precision.MotionJitter System.Client.PrecisionTouchpad.PrecisionTouchpad |
Platforms |
Windows RT 8.1 Windows 8.1 x64 Windows 8.1 x86 |
Expected run time |
~2 minutes |
Categories |
Certification |
Type |
Manual |
Running the test
Before you run the test, complete the test setup as described in the test requirements: Mouse or other Pointing Device Testing Prerequisites.
This test requires very precise movement in a straight line. We recommend that you perform this test by using a precision rig or other precision device that is capable of straight line movement without any jitter.
Place two precision contacts slightly outside the top left corner of the touchpad.
Drag that contact in a straight line from the top left to the bottom right corner of the touchpad.
Drag the contact from the bottom right up to the top left.
Repeat this pattern for a total of five iterations.
Troubleshooting
For troubleshooting information, see Troubleshooting Device.Input Testing.
| Error | Description/Workaround |
|---|---|
[15] contact didn’t move in straight line |
Reported path strayed varied from a straight line by more than the allowed tolerance. |
[14] packet too far from edge: ### |
|
More information
Command syntax
| Command | Description |
|---|---|
ptlogo.exe Test.LinearityDiagonal.json |
Runs the test. |
File list
| File | Location |
|---|---|
ptlogo.exe |
<testbinroot>\input\PrecisionTouchpad\ |
config.json |
<testbinroot>\input\PrecisionTouchpad\ |
Test.LinearityDiagonal.json |
<testbinroot>\input\PrecisionTouchpad\ |