| sType | (String) Specifies the action that will be performed in the trend viewer.
"undo" - Reversion of the time values of the left/right edge of the time axis or of the minimum/maximum values of the value axis by one step back.
The time of the edges or the minimum/maximum can be changed, for example, by calling the methods PmgTrendViewer.ZoomTime, PmgTrendViewer.ZoomValue, PmgTrendViewer.ScrollTime, PmgTrendViewer.ScrollValue, ... or by moving, by zooming the time axis or value axis by the mouse dragging. |
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