Horizontal Scale properties

The Horizontal Scale tab options determine how the X-axis of the trend appears and how the time scale appears on the axis.

• Tracking mode

  Specifies how traces with different start times and end times display.

• UseFirstTrace

  The start and end times of the first trace determine the trend start and end times. Other traces will only show that portion of their data that falls between the start and end time of the first trace. This option is useful for traces with disparate start times, end times, and durations.

• AlignStartTimes

  The start time of the first trace sets the trend start time. The end time of the trend is calculated as the start time plus the duration of the longest trace. While the start of each trace is made to line up with the beginning of the plot, the start times are not actually changed. An offset is applied so that the you can compare traces.

• ShowAllTimes

  The start and end times are determined by the start and end times of all the traces. The start time of the trend corresponds to the earliest trace start time. The end time of the trend corresponds to the latest trace end time. All trace data is shown on the trend. End times of * are aligned. This option is useful to show the full range of traces with disparate start times, end times, and durations.

• AlignEndTimes

  The first trace's end time determines the trend end time. The start time of the trend is calculated as the end time minus the duration of the longest trace. While the end of each trace is made to line up with the end of the plot, the end times are not actually changed. An offset is applied so that you can compare traces.

  This is the default option.

• Labels

  Specifies the format of the scale labels.

  Options are Full time, Partial time, and Relative time.

• Units

  Specifies the maximum time units for the scale labels.

  Options are Auto, Years, Days, Hours, Minutes, and Seconds.