Skip to main content
TopMiniSite

Back to all posts

How to Plot Sectors In 3D With Matplotlib?

Published on
6 min read
How to Plot Sectors In 3D With Matplotlib? image

Best 3D Plotting Tools with Matplotlib to Buy in November 2025

1 3D Printing Tools Kit,3D Printer Accessories, 3-Speed USB Rotary Tool with Bits & Deburring Tool for 3D Printing Burr, 3D Printer Model,Resin Model Engraving, Drilling, Carving, Polishing

3D Printing Tools Kit,3D Printer Accessories, 3-Speed USB Rotary Tool with Bits & Deburring Tool for 3D Printing Burr, 3D Printer Model,Resin Model Engraving, Drilling, Carving, Polishing

  • COMPLETE 3D PRINTING KIT: INCLUDES 12 ESSENTIAL TOOLS FOR PRECISION.
  • DURABLE ALUMINUM HANDLE: OUTLASTS PLASTIC TOOLS FOR SUPERIOR PERFORMANCE.
  • VERSATILE ROTARY PEN: 3 SPEED SETTINGS FOR VARIOUS MATERIALS AND TASKS.
BUY & SAVE
$21.35 $24.98
Save 15%
3D Printing Tools Kit,3D Printer Accessories, 3-Speed USB Rotary Tool with Bits & Deburring Tool for 3D Printing Burr, 3D Printer Model,Resin Model Engraving, Drilling, Carving, Polishing
2 32 Piece 3D Print Tool Kit Includes Debur Tool, Cleaning, Finishing and Printing Tool,3D Print Accessories for Cleaning, Finishing and Printing 3D Prints

32 Piece 3D Print Tool Kit Includes Debur Tool, Cleaning, Finishing and Printing Tool,3D Print Accessories for Cleaning, Finishing and Printing 3D Prints

  • COMPLETE 32-PIECE TOOLKIT MEETS ALL 3D PRINTING NEEDS EFFORTLESSLY!

  • CONVENIENT STORAGE KEEPS TOOLS ORGANIZED FOR EASY ACCESS AND USE.

  • FAST CUSTOMER SUPPORT ENSURES SATISFACTION AND RESOLVES ISSUES SWIFTLY.

BUY & SAVE
$19.99 $20.99
Save 5%
32 Piece 3D Print Tool Kit Includes Debur Tool, Cleaning, Finishing and Printing Tool,3D Print Accessories for Cleaning, Finishing and Printing 3D Prints
3 Housolution 8.5Inch 3D 6-in-1 Carpenter Square (1/16" Precision), 0-90° Aluminum Alloy Carpenter Square, Woodworking Protractor Drawing Line, Miter Triangle Ruler High Precision Layout, Blue

Housolution 8.5Inch 3D 6-in-1 Carpenter Square (1/16" Precision), 0-90° Aluminum Alloy Carpenter Square, Woodworking Protractor Drawing Line, Miter Triangle Ruler High Precision Layout, Blue

  • EXPANDED MEASURING RANGE: ENJOY 8.5 SIZE FOR VERSATILE MEASUREMENT NEEDS.
  • DURABLE ALUMINUM BUILD: SCRATCH-RESISTANT FOR LASTING PRECISION AND DURABILITY.
  • PRECISION ANGLE FINDER: 14 PRESET ANGLES ENSURE ACCURATE AND QUICK SETUPS.
BUY & SAVE
$22.99
Housolution 8.5Inch 3D 6-in-1 Carpenter Square (1/16" Precision), 0-90° Aluminum Alloy Carpenter Square, Woodworking Protractor Drawing Line, Miter Triangle Ruler High Precision Layout, Blue
4 99 PCS 3D Printing Tool Kit, 3D Printer Accessories with Cleaning Needles, Carving Knives, Files, Pliers, Tweezers, Wrench Set, Brush, Cutting Mat, for 3D Print Removing, Cleaning, Finishing

99 PCS 3D Printing Tool Kit, 3D Printer Accessories with Cleaning Needles, Carving Knives, Files, Pliers, Tweezers, Wrench Set, Brush, Cutting Mat, for 3D Print Removing, Cleaning, Finishing

  • ALL-IN-ONE KIT: 99 ESSENTIAL TOOLS FOR EVERY 3D PRINTING NEED!

  • DURABLE DESIGN: HIGH-QUALITY MATERIALS ENSURE LONG-LASTING PERFORMANCE.

  • PORTABLE STORAGE: CONVENIENT TOOLBOX FOR EASY ACCESS AND TRANSPORT.

BUY & SAVE
$26.99 $28.79
Save 6%
99 PCS 3D Printing Tool Kit, 3D Printer Accessories with Cleaning Needles, Carving Knives, Files, Pliers, Tweezers, Wrench Set, Brush, Cutting Mat, for 3D Print Removing, Cleaning, Finishing
5 Sovol 3D Printer Tools Kit, 36 PCS 3D Printer Accessories with Deburring Tool, Digital Caliper, Art Knife Set, Removal Tools, Cutters, Pliers and Tools Storage Bag for Smoothing, Finishing, Craving

Sovol 3D Printer Tools Kit, 36 PCS 3D Printer Accessories with Deburring Tool, Digital Caliper, Art Knife Set, Removal Tools, Cutters, Pliers and Tools Storage Bag for Smoothing, Finishing, Craving

  • COMPREHENSIVE 36-PIECE KIT: EVERYTHING YOU NEED FOR PERFECT PRINTS.

  • PRECISION TOOLS FOR POST-PROCESSING: ACHIEVE ACCURACY WITH DURABLE ACCESSORIES.

  • CONVENIENT STORAGE BAG: KEEP YOUR TOOLS ORGANIZED AND EASILY ACCESSIBLE.

BUY & SAVE
$21.84 $22.99
Save 5%
Sovol 3D Printer Tools Kit, 36 PCS 3D Printer Accessories with Deburring Tool, Digital Caliper, Art Knife Set, Removal Tools, Cutters, Pliers and Tools Storage Bag for Smoothing, Finishing, Craving
6 Housolution 8.5Inch 3D 6-in-1 Carpenter Square (1/16" Precision), 0-90° Aluminum Alloy Carpenter Square, Woodworking Protractor Drawing Line, Miter Triangle Ruler High Precision Layout, Red

Housolution 8.5Inch 3D 6-in-1 Carpenter Square (1/16" Precision), 0-90° Aluminum Alloy Carpenter Square, Woodworking Protractor Drawing Line, Miter Triangle Ruler High Precision Layout, Red

  • EXTENDED MEASURING RANGE: 8.5 CARPENTRY SQUARE FOR VERSATILE USE.

  • 14 HOLES FOR PRECISION: EASILY PLOT MULTIPLE PRESET ANGLES ACCURATELY.

  • DURABLE ALUMINUM DESIGN: SCRATCH-RESISTANT AND STURDY FOR RELIABLE USE.

BUY & SAVE
$21.99
Housolution 8.5Inch 3D 6-in-1 Carpenter Square (1/16" Precision), 0-90° Aluminum Alloy Carpenter Square, Woodworking Protractor Drawing Line, Miter Triangle Ruler High Precision Layout, Red
+
ONE MORE?

To plot sectors in 3D with Matplotlib, you can follow these steps:

  1. Import the necessary libraries:

import numpy as np import matplotlib.pyplot as plt from mpl_toolkits.mplot3d import Axes3D

  1. Create a figure and a 3D axis:

fig = plt.figure() ax = fig.add_subplot(111, projection='3d')

  1. Define the parameters of the sector:
  • Center coordinates (x0, y0, z0)
  • Radius (r)
  • Start and end angles (theta_start, theta_end)
  • Height (h)
  1. Generate the coordinates for the sector:

theta = np.linspace(theta_start, theta_end, 100) x = x0 + r * np.cos(theta) y = y0 + r * np.sin(theta) z = z0 + np.zeros_like(theta)

  1. Plot the sector using the generated coordinates:

ax.plot(x, y, z)

  1. If you want a filled sector, you can use the fill_between function:

ax.fill_between(x, y, z, color='your_color')

  1. Adjust the axis limits and labels, if needed:

ax.set_xlim3d(x_min, x_max) ax.set_ylim3d(y_min, y_max) ax.set_zlim3d(z_min, z_max) ax.set_xlabel('X-axis label') ax.set_ylabel('Y-axis label') ax.set_zlabel('Z-axis label')

  1. Finally, display the plot:

plt.show()

Remember to replace the parameters with your desired values. This procedure allows you to plot sectors in 3D using Matplotlib.

What is the purpose of a legend in a sector plot?

The purpose of a legend in a sector (or pie) plot is to provide a visual guide for understanding the different categories or segments represented in the plot. A sector plot represents data as a circle divided into various segments, with each segment representing a different category or group. The legend lists these categories or groups along with their corresponding colors or patterns used in the plot. By referring to the legend, viewers can quickly identify and understand the meaning of each segment in the plot. The legend helps in interpreting and comparing the values represented by different categories, contributing to the overall comprehension of the plot.

How to specify custom start and end angles for sectors in a plot?

To specify custom start and end angles for sectors in a plot, you will need to use a library or software that supports customizable pie or polar plots. Here's an example using Python's matplotlib library:

import matplotlib.pyplot as plt

Data for the sectors

sizes = [20, 30, 50] # Sizes of the sectors labels = ['Sector A', 'Sector B', 'Sector C'] # Labels for the sectors start_angle = 90 # Start angle in degrees end_angle = 270 # End angle in degrees

Create a pie plot

plt.pie(sizes, labels=labels, startangle=start_angle, endangle=end_angle)

Set aspect ratio to be equal so that the pie is circular

plt.axis('equal')

Display the plot

plt.show()

In this example, we create a pie plot with three sectors (Sector A, Sector B, and Sector C) using the plt.pie() function. We specify the sizes of the sectors using the sizes list, and the labels for the sectors using the labels list.

The startangle parameter sets the start angle for the first sector, and the endangle parameter sets the end angle for the last sector. In this case, we set the start angle to 90 degrees and the end angle to 270 degrees, resulting in a semicircular plot.

Finally, we call plt.axis('equal') to set the aspect ratio to be equal so that the pie is circular, and plt.show() to display the plot.

How to define the radius and height for sector plots?

To define the radius and height for sector plots, follow these steps:

  1. Determine the desired radius for the sector plot. The radius represents the distance from the center to the outer edge of the sector. It can be measured in any unit of length, such as centimeters, inches, or meters.
  2. Identify the center point of the plot. This is the point from which the radius extends outward.
  3. Measure the desired height for the sector plot. The height is the vertical distance from the center of the plot to the top or bottom edge of the sector. It can also be measured in any unit of length.
  4. Decide on the angle or degrees for the sector. This will determine the size of the sector in the plot and can range from 0 degrees (no sector, only a line) to 360 degrees (a full circle).
  5. Use the measurements to draw the sector plot accurately, ensuring the radius extends to the desired distance and the height corresponds to the chosen measurement.

Note: The radius and height of a sector plot can be determined based on the specific requirements of the data or the plot's purpose.

What is the purpose of subplot in Matplotlib?

The purpose of subplots in Matplotlib is to facilitate the creation of multiple plots within a single figure. It allows users to create a grid of subplots and place different plots in each subplot. This is useful for visualizing and comparing multiple data sets or aspects of data within the same figure. It also enables the arrangement and customization of plots in a more flexible and structured manner.

How to install Matplotlib library?

To install the Matplotlib library, follow these steps:

  1. Ensure that you have Python installed on your system. Matplotlib can be installed on Python versions 3.7 or higher.
  2. Open a command prompt or terminal.
  3. Use pip (the Python package installer) to install Matplotlib by typing the following command: pip install matplotlib If you have multiple versions of Python installed, make sure to use pip associated with the desired Python version (e.g., pip3 for Python 3).
  4. Wait for the installation to complete. Pip will download the required files and libraries from the Python Package Index (PyPI) and install them on your system.
  5. Once the installation is successful, you can start using Matplotlib in your Python project by importing it at the beginning of your script: import matplotlib.pyplot as plt The plt alias is commonly used for convenience, but you can choose any valid name.
  6. You're now ready to create visualizations using Matplotlib.

Note: If you are using an integrated development environment (IDE) like Anaconda or Jupyter Notebook, Matplotlib might already be preinstalled.

That's it! You have successfully installed the Matplotlib library.