Skip to content
Related Articles

Related Articles

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.




# importing the modules
from bokeh.plotting import figure, output_file, show
         
# file to save the model
output_file("gfg.html")
         
# instantiating the figure object
graph = figure(title = "Bokeh Wedge Graph")
       
# the points to be plotted
x = 0
y = 0
  
# radius of the wedge
radius = 15
  
# start angle of the wedge
start_angle = 1
  
# end angle of the wedge
end_angle = 2
  
# plotting the graph
graph.wedge(x, y,
            radius = radius,
            start_angle = start_angle,
            end_angle = end_angle)
       
# displaying the model
show(graph)

Output :

Example 2 : In this example we will be plotting multiple wedges with various other parameters.




# importing the modules
from bokeh.plotting import figure, output_file, show
         
# file to save the model
output_file("gfg.html")
         
# instantiating the figure object
graph = figure(title = "Bokeh Wedge Graph")
  
# name of the x-axis 
graph.xaxis.axis_label = "x-axis"
        
# name of the y-axis 
graph.yaxis.axis_label = "y-axis"
  
# the points to be plotted
x = [0, 5, 0]
y = [0, 5, 5]
  
# radius of the wedges
radius = [15, 10, 5]
  
# start angle of the wedges
start_angle = [1, 2, 3]
  
# end angle of the wedges
end_angle = [2, 4, 6]
  
# color value of the wedges
color = ["yellow", "red", "purple"]
   
# fill alpha value of the wedges
fill_alpha = [0.9, 0.7, 0.5]
  
# plotting the graph
graph.wedge(x, y,
            radius = radius,
            start_angle = start_angle,
            end_angle = end_angle,
            color = color,
            fill_alpha = fill_alpha)
       
# displaying the model
show(graph)

Output :

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course

My Personal Notes arrow_drop_up
Recommended Articles
Page :