How to change number of scales in pygal?

Last Updated : 23 Jul, 2025

Prerequisites:pygal

Pygal is a Python module that is mainly used to build SVG (Scalar Vector Graphics) graphs and charts. Pygal is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications.
Ā 
In this article, we will see how we can change the number of scales in pygal. A scale on the graph shows the way the numbers or pictures are used in data. The scale selected for a graph axis has a significant impact on how the audience interprets the message and is an important part of optimizing data visualization. Thus, a scale plays a crucial part in plotting graphs.

Approach

  • Import required module.
  • Create a chart object.
  • Pass maximum/minimum number of scale.
  • Label the graph.
  • Display Graph.

Syntax:

  • min_scaleĀ 
  • max_scale

You can specify the maximum/minimum number of scale graduation to generate with auto-scaling if possible.

Example 1:

Python3 
# importing pygal
import pygal
import numpy


# creating the chart object
# minimum number of scale
chart = pygal.Line(min_scale=40)

# Random data
chart.add('line', [0, .02, .05, .0035])

# naming the title
chart.title = 'Line Chart'

chart.render_to_png('aa.png')

Output

Example 2:

Python3 
# importing pygal
import pygal
import numpy


# creating the chart object
# maximum number of scale
chart = pygal.Line(max_scale=3)

# Random data
chart.add('line', [0, .02, .05, .0035])

# naming the title
chart.title = 'Line Chart'

chart.render_to_png('aa.png')

Output

Comment

Explore