Multiple Glyphs in Bokeh

Multiple glyphs with bokeh legend

In this example, we will be exploring different types of glyphs in bokeh. Every glyph in the below implementation has different properties to identify themselves. So, lets us move to the code to understand the concept.

Code:

Python3

# importing numpy package
import numpy as np 
 
# importing figure and show from
# bokeh.plotting module
from bokeh.plotting import figure, show
 
# using numpy package to
# create a list of 5 numbers
x = np.arange(5)
 
# y is stored with the square 
# of the numbers in x
y = x**2
 
# z is storing 3 times the value
# of the elements in x
z = x*3
 
# storing 7 numbers in p between
# 1 to 20 
p = np.linspace(1,20,7)
 
# storing 7 numbers in q between
# 1 to 10 
q = np.linspace(1, 10, 7)
 
# storing 5 numbers in r between
# 1 to 30 
r = np.linspace(1, 30, 5)
 
# creating 31 elements in a list 
a = np.arange(31)
 
# creating an empty figure with specific plot
# width and height
fig = figure(plot_width = 600 , plot_height = 600)
 
# plotting the points in the form of 
# circular glyphs
fig.circle(x, y, color = "red", size = 20)
 
# plotting the points in the form of 
# square glyphs
fig.square(x, z, color = "blue", size = 15, alpha = 0.5)
 
# plotting the points in the form of 
# hex glyphs
fig.hex(y, z, color = "green", size = 10, alpha = 0.7)
 
# drawing a line between the plotted points 
fig.line(x, y, color = "green", line_width = 4)
 
# plotting the points in the form of 
# inverted triangle glyph
fig.inverted_triangle(p, q, color = "yellow", size = 20, alpha = 0.4)
 
# plotting the points in the form of 
# diamond glyphs
fig.diamond(x, r, color = "purple", size = 16, alpha = 0.8)
 
# plotting the points in the form of 
# cross glyphs
 
fig.cross(a, a, size = 14)
 
# showing the above plot
show(fig)

Output:

Explanation:

At first, we are importing numpy, figure, and show packages from different modules.
Now, we are creating a range of numbers using arrange and storing the list in x.
Thereafter, we are also initializing different variables in order to plot the graph against each other.
After initialization, we are creating an empty figure with plot width and height as 600.
Since bokeh provides us with different types of glyphs, we are implementing some of them in this example with various colors and sizes of the points. The set of points with shape as circle has a color red and size as 20 whereas the set of points with shape as a hex has green color along with a size of 10 and the opacity of the color is 0.7(denoted by alpha).

Create a plot with Multiple Glyphs using Python Bokeh

In this article, we will be learning about multiple glyphs and also about adding a legend in bokeh. Now bokeh provides us with a variety of glyphs that can be used to represent a point in a plot. Some glyphs are circle, square, asterik, inverted_triangle(), triangle() etc.

Installation

This module does not come in-built with Python. To install it type the below command in the terminal.

pip install bokeh

Tags:

#Python-Bokeh #Python #python

Multiple glyphs with bokeh legend

Multiple Glyphs in Bokeh

Python3

Create a plot with Multiple Glyphs using Python Bokeh

Installation

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