Python Bokeh – Plotting Wedges on a Graph
Last Updated :
10 Jul, 2020
Bokeh is a Python interactive data visualization. It renders its plots using HTML and JavaScript. It targets modern web browsers for presentation providing elegant, concise construction of novel graphics with high-performance interactivity.
Bokeh can be used to plot wedges on a graph. Plotting wedges on a graph can be done using the wedge()
method of the plotting
module.
plotting.figure.wedge()
Syntax : wedge(parameters)
Parameters :
- x : x-coordinates of the wedge markers
- y : y-coordinates of the wedge markers
- radius : radius of the wedge markers
- radius_units : unit of the radius of the wedge markers, default is radian
- start_angle : angle to start the wedge markers
- start_angle_units : unit of the angle to start the wedge markers, default is radian
- end_angle : angle to end the wedge markers
- end_angle_units : unit of the angle to end the wedge markers
- direction : direction of strokes, default is anticlock
Returns : an object of class GlyphRenderer
Example 1 : In this example we will be using the default values for plotting the graph.
from bokeh.plotting import figure, output_file, show
output_file( "gfg.html" )
graph = figure(title = "Bokeh Wedge Graph" )
x = 0
y = 0
radius = 15
start_angle = 1
end_angle = 2
graph.wedge(x, y,
radius = radius,
start_angle = start_angle,
end_angle = end_angle)
show(graph)
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Output :
Example 2 : In this example we will be plotting multiple wedges with various other parameters.
from bokeh.plotting import figure, output_file, show
output_file( "gfg.html" )
graph = figure(title = "Bokeh Wedge Graph" )
graph.xaxis.axis_label = "x-axis"
graph.yaxis.axis_label = "y-axis"
x = [ 0 , 5 , 0 ]
y = [ 0 , 5 , 5 ]
radius = [ 15 , 10 , 5 ]
start_angle = [ 1 , 2 , 3 ]
end_angle = [ 2 , 4 , 6 ]
color = [ "yellow" , "red" , "purple" ]
fill_alpha = [ 0.9 , 0.7 , 0.5 ]
graph.wedge(x, y,
radius = radius,
start_angle = start_angle,
end_angle = end_angle,
color = color,
fill_alpha = fill_alpha)
show(graph)
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Output :
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