Table Of Contents
Calibration¶
New in version 1.9.0.
Recalibrate input device to a specific range / offset.
Let’s say you have 3 1080p displays, the 2 firsts are multitouch. By default, both will have mixed touch, the range will conflict with each others: the 0-1 range will goes to 0-5760 px (remember, 3 * 1920 = 5760.)
To fix it, you need to manually reference them. For example:
[input]
left = mtdev,/dev/input/event17
middle = mtdev,/dev/input/event15
# the right screen is just a display.
Then, you can use the calibration postproc module:
[postproc:calibration]
left = xratio=0.3333
middle = xratio=0.3333,xoffset=0.3333
Now, the touches from the left screen will be within 0-0.3333 range, and the touches from the middle screen will be within 0.3333-0.6666 range.
-
class
kivy.input.postproc.calibration.InputPostprocCalibration[source]¶ Bases:
builtins.objectRecalibrate the inputs.
The configuration must go within a section named postproc:calibration. Within the section, you must have line like:
devicename = param=value,param=value
Parameters: - xratio: float
Value to multiply X
- yratio: float
Value to multiply Y
- xoffset: float
Value to add to X
- yoffset: float
Value to add to Y