Bokeh - Plot Tools

When a Bokeh plot is rendered, normally a tool bar appears on the right side of the figure. It contains a default set of tools. First of all, the position of toolbar can be configured by toolbar_location property in figure() function. This property can take one of the following values −

"above"

"below"

"left"

"right"

"None"

For example, following statement will cause toolbar to be displayed below the plot −

Fig = figure(toolbar_location = "below")

This toolbar can be configured according to the requirement by adding required from various tools defined in bokeh.models module. For example −

Fig.add_tools(WheelZoomTool())

The tools can be classified under following categories −

Pan/Drag Tools

Cpck/Tap Tools

Scroll/Pinch Tools

Tool	Description	Icon
BoxSelectTool Name : box_select	allows the user to define a rectangular selection region by left-dragging a mouse
LassoSelectTool name: lasso_select	allows the user to define an arbitrary region for selection by left-dragging a mouse
PanTool name: pan , xpan , ypan ,	allows the user to pan the plot by left-dragging a mouse
TapTool name: tap	allows the user to select at single points by cpcking a left mouse button
WheelZoomTool name: wheel_zoom , xwheel_zoom , ywheel_zoom	zoom the plot in and out, centered on the current mouse location.
WheelPanTool name: xwheel_pan , ywheel_pan	translate the plot window along the specified dimension without changing the window’s aspect ratio.
ResetTool name: reset	restores the plot ranges to their original values.
SaveTool name: save	allows the user to save a PNG image of the plot.
ZoomInTool name: zoom_in , xzoom_in , yzoom_in	The zoom-in tool will increase the zoom of the plot in x, y or both coordinates
ZoomOutTool name: zoom_out , xzoom_out , yzoom_out	The zoom-out tool will decrease the zoom of the plot in x, y or both coordinates
CrosshairTool name: crosshair	draws a crosshair annotation over the plot, centered on the current mouse position.