GW Instek APS-1102 Control Software User Manual - Manual (Page 86)

7 Arbitrary Waveform Editing
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7.11 Compress/Expand
[Compress/Expand Panel] generates a waveforms by compressing or expanding the waveforms in the
selection vertically/horizontally.
When you click the Compress/Expand button in the Select Item Panel or perform [Tool] -
[Compress/Expand] (Alt, T, P), [Compress/Expand Panel] is displayed. Operations on waveform
display sections disabled during [Compress/Expand Panel] is displayed.
Just after editing an arbitrary waveform on [Compress/Expand Panel] and returning to waveform
display section, the generated waveform can be restored to the state before the edited contents were
reflected by selecting [Edit] - [Undo] (Alt, E, U), or Ctrl + U.
Figure 7-12 Compression/Expansion
7.11.1 Compression/Expansion along Horizontal Axis
Because the compression/expansion operation affects only the selected range by markers, you must set
the selection by using markers in the waveform display section ( 7.5.3) before you compress/expand
along the horizontal axis.
To set the compression/expansion along the horizontal axis, you use the items in the [X-axis] on the
Compression/Expansion screen.
Compress/expand selection to start/end point
Enter the numeric values in the input areas of the [Start X=] and [End X=] and click OK button.
The waveform in the selection that is already selected by the markers can be compressed/expanded or
moved to the selection specified by the start and end points.
The area with no data as the result of the compression/expansion is filled with the data immediately
before or after it.