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Trace Zoom Feature

The zoom feature is used to magnify or reduce a portion of a trace. Two zoom modes are available:

Time zoom	Used to expand/collapse the time-base in order to have a better view of the signal evolution through time. This zoom operation updates the time-base value.
Amplitude zoom	Used to have a better view of a part of a signal. This zoom operation updates the amplitude & zero offset value

The zoom operations can be done:

For more details on setting the amplitude, zero offset and time-base values, refer to Setting Scale.

Mouse Shortcuts

Action	Result
Scrolling up the mouse wheel	Expands the time-base value
Scrolling down the mouse wheel	Collapses the time-base value
Pressing the Ctrl key while scrolling up	Makes the amplitude value greater
Pressing the Ctrl key while scrolling down	Makes the amplitude value smaller

When performing an amplitude zoom, the zero offset is automatically set by the cursor position.

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