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visual3d:documentation:pipeline:metric_commands:metric_time_of_threshold_from_event [2024/07/12 13:30] – removed sgrangervisual3d:documentation:pipeline:metric_commands:metric_time_of_threshold_from_event [2025/09/22 18:05] (current) – [Examples] wikisysop
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 +====== Metric Time of Threshold from Event ======
 +====Overview====
 +The **Metric Time of Threshold from Event** command can be used to record the time it takes for a signal to reach a threshold, like a joint angle reaching 90 degrees, in relation to a defined event. The command can be found in the **Pipeline Workshop** under **Metric**.
 +
 +====Pipeline Command====
 +
 +The command syntax is as follows:
 +
 +<code>
 +Metric_Time_Of_Threshold_From_Event
 +! /RESULT_METRIC_TIME=
 +! /RESULT_METRIC_VALUE=
 +! /RESULT_FOLDER=PROCESSED
 +! /THRESHOLD=
 +! /RESULT_COMPONENTS=ALL
 +! /SIGNAL_TYPES=
 +! /SIGNAL_FOLDER=ORIGINAL
 +! /SIGNAL_NAMES=
 +! /SIGNAL_COMPONENTS=
 +! /FRAME_OFFSET=0
 +! /TIME_OFFSET=
 +! /EVENT_SEQUENCE=
 +! /EXCLUDE_EVENTS=
 +! /EVENT_SEQUENCE_INSTANCE=0
 +! /EVENT_SUBSEQUENCE=
 +! /SUBSEQUENCE_EXCLUDE_EVENTS=
 +! /EVENT_SUBSEQUENCE_INSTANCE=0
 +! /EVENT_INSTANCE=0
 +! /ON_ASCENT=TRUE
 +! /ON_DESCENT=
 +! /FRAME_WINDOW=8
 +! /ENSURE_FRAMES_BEFORE=
 +! /ENSURE_FRAMES_AFTER=
 +;
 +</code>
 +
 +====Command Parameters====
 +
 +The following table shows the command parameters seen above and their descriptions:
 +|**/RESULT_METRIC_TIME=**                                                                               |Time of minimum from event.                                                                      |
 +|**/RESULT_METRIC_VALUE=**                                                                              |Value of minimum after event.                                                                    |
 +|**/RESULT_FOLDER=**                                                                                    |Name of folder designated for results.                                                           |
 +|**THRESHOLD**                                                                                          |Threshold value to be reached.                                                                   |
 +|**/RESULT_COMPONENTS=**                                                                                |Components to be included in results.                                                            |
 +|**/SIGNAL_TYPES=**                                                                                     |The type of signal to be processed                                                               |
 +|**/SIGNAL_NAMES=**                                                                                     |The name of the signal to be processed                                                           |
 +|**/SIGNAL_FOLDER**                                                                                     |The folder of the signal to be processed                                                         |
 +|**/SIGNAL_COMPONENTS=**                                                                                |The component of the signal to be processed                                                      |
 +|**/FRAME_OFFSET=**                                                                                     |The offset (in frames) to apply to the event.                                                    |
 +|**/TIME_OFFSET=**                                                                                      |The time offset (in seconds) to apply to the event.                                              |
 +|**/EVENT_SEQUENCE=**                                                                                   |A list of events (separated by “+” signs).                                                       |
 +|**/EXCLUDE_EVENTS=**                                                                                   |This Event_Sequence must not be during the sequence requested.                                   |
 +|**/EVENT_SEQUENCE_INSTANCE=**                                                                          |Index of the sequence instance to evaluate (0 = all, 1 = first, etc.).                           |
 +|**/EVENT_SUBSEQUENCE=**                                                                                |Optional inner event window within a broader sequence.                                           |
 +|**/SUBSEQUENCE_EXCLUDE_EVENTS=**                                                                       |This Event subsequence must not be during the sequence requested.                                |
 +|**/EVENT_SUBSEQUENCE_INSTANCE=**                                                                       |Index of the subsequence instance to evaluate (0 = all, 1 = first, etc.).                        |
 +|**/EVENT_INSTANCE=**                                                                                   |Defines how many event occurrences to consider.                                                  |
 +|**ON_ASCENT**                                                                                          |Determine if the event is detected when the signal crosses the threshold in an upward direction. |
 +|**ON_DESCENT**                                                                                         |Determines if the event is detected when the signal crosses the threshold in a downward direction.|
 +|**FRAME_WINDOW**                                                                                       |The range of frames that must satisfy the threshold crossing condition.                          |
 +|**ENSURE_FRAMES_BEFORE**                                                                               |(True or False) Radius frames of data before crossing must lie on the same side of the threshold.|
 +|**ENSURE_FRAMES_AFTER**                                                                                |(True or False) Radius frames of data after crossing must lie on the same side of the threshold. |
 +
 +
 +====Dialog====
 +
 +The command can be edited in a text editor or in a dialog form. To edit in the dialog pop up form either click on the **Edit** button in the pipeline workshop or double-click on the pipeline command. The dialog is shown below.
 +
 +{{:MetricTimeofThresholdfromEvent.png}}
 +
 +
 +The dialog box allows you to assign values to the command parameters outlined above.
 +
 +====Notes====
 +
 +Event_Labels are defined by the c3d format. Event_Labels exist only at Motion Capture frames (e.g. at Point Rate). For model based kinematic and kinetic calculations this is fine, because these signals only exist at Motion Capture frames.
 +
 +For measures of timing that involve signals that are at ANALOG rate (e.g. Force Platform data) the motion capture rate isn't sufficient.
 +
 +In Version 5 a series of metric commands were introduced to identify the time of a threshold crossing or maximum at the analog rate.
 +
 +====Examples====
 +
  
visual3d/documentation/pipeline/metric_commands/metric_time_of_threshold_from_event.1720791016.txt.gz · Last modified: 2024/07/12 13:30 by sgranger