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Figure 4.13 Tap Gesture
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.
Figure 4.14 Pinch&Stretch Gesture
4.5.3 Drag
Use one finger to select the object, and then drag the object to a destination place, as
shown in the figure below. With the drag gesture, you can perform the following
operation:
• Drag the waveform to change its position or scale.
Quick Start
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DHO1000 User Guide
29
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