chaco.tools.tracking_zoom module¶
Defines the TrackingZoom class.
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class
chaco.tools.tracking_zoom.
TrackingZoom
(component=None, *args, **kw)¶ Bases:
chaco.tools.better_selecting_zoom.BetterSelectingZoom
Allows the user to zoom in or out on a plot that is using tracking.
The default_state of the data range determines the tracking behavior. For example, if the data range’s default_state is “low_track”, the range’s high value snaps to the right edge and the tracking, low, value follows it by the data range’s tracking_amount value (and vice versa for “high_track”).
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normal_mouse_wheel
(event)¶ Handles the mouse wheel being used when the tool is in the ‘normal’ state.
Overrides ZoomTool
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