[bugfix] prevent error on mousewheel zoom outside axis
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@ -1910,6 +1910,9 @@ class PickDlg(QDialog):
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def scrollZoom(self, gui_event, factor=2.):
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if not gui_event.xdata or not gui_event.ydata:
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return
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self.updateCurrentLimits()
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if gui_event.button == 'up':
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