libinput-a...-slot-delta(1) General Commands Manual libinput-a...-slot-delta(1) NAME libinput-analyze-per-slot-delta - analyze the per-event delta movement for touch slots SYNOPSIS libinput analyze per-slot-delta [--help] [options] recording.yml DESCRIPTION The libinput analyze per-slot-delta tool analyzes a recording made with li- binput record and prints the delta movement per touch slot. This is a debugging tool only, its output may change at any time. Do not rely on the output. OPTIONS --help Print help --ignore-below=<units or mm> Ignore any movement below the given threshold. The threshold is in mm if --use-mm is selected or in device units otherwise. --show-distance Also show the distance relative to the initial position of the cur- rent touch. The distance is mm if --use-mm is selected or in device units otherwise. --threshold=<units or mm> Color any movement above this threshold in red. The threshold is in mm if --use-mm is selected or in device units otherwise. --use-mm Print data in mm instead of device units --use-st Use the single-touch ABS_X/ABS_Y instead of the multitouch axes --use-absolute Print absolute coordinates, not deltas OUTPUT An example output for a single finger touch on a touchpad supporting two slots is below. This output is with the use of the --use-mm flag. 0.000000 +0ms TOU: ++++++ | ************* | 0.021900 +21ms TOU: aa +1.10/+0.14 | ************* | 0.033468 +11ms TOU: aa +1.15/+0.19 | ************* | 0.043856 +10ms TOU: aa +1.76/+0.22 | ************* | 0.053237 +9ms TOU: aa +2.20/+0.19 | ************* | The entry ++++++ indicates a finger has been put down, ------ indicates the finger has lifted. The left-most column is the absolute timestamp in sec- onds.microseconds followed by the relative time of the event to the previ- ous event. The word TOU in this example represents BTN_TOUCH, similar abbreviations exist for BTN_TOOL_DOUBLETAP, BTN_TOOL_TRIPLETAP, BTN_TOOL_QUADTAP, and BTN_TOOL_QUINTTAP. The arrows indicate the approximate direction on a 16-point compass, in this example EastSouthEast. Each multitouch slot supported by the hardware has one column, where the column shows asterisk ******** no finger is down for that slot. Where the column shows spaces only, a finger is down but no data is currently avail- able. In the above example, the third events occurs ~33ms into the recording, is 11ms after the previous event and has an east south-east direction. The movement for this event was x: 1.15 and y: 0.19 mm. A second finger is not currently down. LIBINPUT Part of the libinput(1) suite libinput-a...-slot-delta(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OUTPUT | LIBINPUT
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