Timeline control bar

The Timeline control bar is shown at the bottom of the QTM window in file mode. It is used to indicate and to select current frame, trace range, measurement range and events.

The current frame is indicated by the top slider , the exact frame is shown in the text below the control bar. To go to a frame, left-click on the desired position on the timeline, or drag the top slider with the mouse. In the 3D view window you can also use the scrubbing feature (Ctrl + drag) to browse through the measurement.

The trace range is the amount of trace that is shown in the 3D view window and it is selected with the two bottom sliders . Drag the sliders to the desired positions for the trace range, the exact position of the sliders is shown in the Status bar. You can also use the trace range zooming feature (Shift + Mouse wheel) to increase/decrease the trace range.

The measurement range is the amount of the original measurement that is used in the analysis, i.e. when plotting, exporting or playing the data. It is selected with the two scroll boxes  at the ends of the time range. Drag the boxes to the desired positions for the measurement range. The exact measurement range can be found in the Timeline parameters dialog, just double-click on the Timeline control bar to open the dialog.

The events are displayed in the timeline as red triangles above the timeline. Place the mouse over the event on the timeline to see information about the event. Right-click on an event to open the Events menu, see chapter Events menu. For more information about how to use events see chapter How to use events.

Use the Timeline menu to modify the Timeline control bar.

  • Set timeline parameters

    Set the parameters of the Timeline control bar, see chapter Timeline parameters. The dialog can also be opened by double-clicking on the Timeline control bar.

  • Use time scale

    Show time scale in seconds in the timeline.

  • Use frame scale

    Show marker frames in the timeline.

  • No scale

    Do not display any scale.

  • Show text

    Toggle the display of information about Marker frames, Marker trace, Video frames, Time and time stamp (SMPTE/IRIG/Camera time) in the timeline.

  • No trace range

    Reset the trace range to no trace.

  • Reset measurement range

    Reset the measurement range so that it contains the whole measurement.

  • Events

    Open the Events menu, see chapter Events menu.