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Quick Start
•
Tap the close button at the upper-right corner of the message box to close the
prompt window.
•
Tap other windows on the touch screen and operate on the windows.
4.5.2
Pinch&Stretch
Pinch or stretch two points on the screen with two fingers to zoom in or out the
waveform. To zoom in the waveform, first pinch the two fingers and then stretch the
fingers; to zoom out the waveform, first stretch the two fingers, and then pinch the
fingers together, as shown in the figure below. With the pinch&stretch gesture, you
can perform the following operation:
•
Pinching&stretching in the horizontal direction can adjust the horizontal time
base of the waveform.
•
Pinching&stretching in the vertical direction can adjust the vertical scale of the
waveform.
HDO4000 User Guide
30
Figure 4.15 Tap Gesture
Figure 4.16 Pinch&Stretch Gesture
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