Python Bokeh – Plotting Multiple Patches on a Graph

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 multiple patches on a graph. Plotting multiple patches on a graph can be done using the patches() method of the plotting module.

plotting.figure.patches()

Syntax : patches(parameters)

Parameters :

• xs : x-coordinates of the patches
• ys : y-coordinates of the patches

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 Patches Graph")

# the points to be plotted
xs = [[1, 2, 3], [3, 5, 3, 5]]
ys = [[1, 2, 1], [2, 2, 4, 5]]

# plotting the graph
graph.patches(xs, ys)

# displaying the model
show(graph)

Output :

Example 2 : In this example we will be plotting the patches 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 Patches Graph")

# name of the x-axis
graph.xaxis.axis_label = "x-axis"

# name of the y-axis
graph.yaxis.axis_label = "y-axis"

# points to be plotted
xs = [[1, 2, 3], [3, 5, 5, 3]]
ys = [[1, 2, 1], [4, 4, 2, 2]]

# color value of the patches
color = ["green", "red"]

# fill alpha value of the patches
fill_alpha = 1

# plotting the graph
graph.patches(xs, ys,
              color = color,
              fill_alpha = fill_alpha)

# displaying the model
show(graph)

Output :