1libinput-analyze-per-slot-delGtean(e1r)al CommandslMiabniunaplut-analyze-per-slot-delta(1)
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NAME

6       libinput-analyze-per-slot-delta  - analyze the per-event delta movement
7       for touch slots
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SYNOPSIS

10       libinput analyze per-slot-delta [--help] [options] recording.yml
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DESCRIPTION

13       The libinput analyze per-slot-delta tool analyzes a recording made with
14       libinput record and prints the delta movement per touch slot.
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16       This  is  a  debugging tool only, its output may change at any time. Do
17       not rely on the output.
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OPTIONS

20       --help  Print help
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22       --ignore-below=<units or mm>
23               Ignore any movement below the given threshold. The threshold is
24               in mm if --use-mm is selected or in device units otherwise.
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26       --threshold=<units or mm>
27               Color  any  movement above this threshold in red. The threshold
28               is in mm if --use-mm is selected or in device units otherwise.
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30       --use-mm
31               Print data in mm instead of device units
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33       --use-st
34               Use the single-touch ABS_X/ABS_Y instead of the multitouch axes
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36       --use-absolute
37               Print absolute coordinates, not deltas
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OUTPUT

40       An example output for a single finger touch on  a  touchpad  supporting
41       two slots is below. This output is with the use of the --use-mm flag.
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43        0.000000   +0ms TOU:     ++++++     |  ************* |
44        0.021900  +21ms TOU: →↘ +1.10/+0.14 |  ************* |
45        0.033468  +11ms TOU: →↘ +1.15/+0.19 |  ************* |
46        0.043856  +10ms TOU: →↘ +1.76/+0.22 |  ************* |
47        0.053237   +9ms TOU: →↘ +2.20/+0.19 |  ************* |
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49       The entry ++++++ indicates a finger has been put down, ------ indicates
50       the finger has lifted.  The left-most column is the absolute  timestamp
51       in  seconds.microseconds  followed by the relative time of the event to
52       the previous event.
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54       The word TOU in this example represents  BTN_TOUCH,  similar  abbrevia‐
55       tions  exist for BTN_TOOL_DOUBLETAP, BTN_TOOL_TRIPLETAP, BTN_TOOL_QUAD‐
56       TAP, and BTN_TOOL_QUINTTAP.
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58       The arrows indicate the approximate direction on a 16-point compass, in
59       this example EastSouthEast.
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61       Each  multitouch  slot  supported by the hardware has one column, where
62       the column shows asterisk ******** no finger is  down  for  that  slot.
63       Where  the  column  shows  spaces only, a finger is down but no data is
64       currently available.
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66       In the above example, the third events occurs ~33ms into the recording,
67       is  11ms after the previous event and has an east south-east direction.
68       The movement for this event was x: 1.15 and y: 0.19 mm. A second finger
69       is not currently down.
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LIBINPUT

72       Part of the libinput(1) suite
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78                                            libinput-analyze-per-slot-delta(1)
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