To be clear, this “zooming model” only applies when the right-mouse button is pressed and held. With pyqtgraph, the default is
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left-mouse-button = panning
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right-mouse-button = zooming
This “zooming model” allows you to nicely pan + zoom while…
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never having to select a different plotting tool (i.e. wheel zoom vs. X wheel zoom)
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only needing to remember 2 options of the UI (left=pan, right=zoom)