Draw a circle using Arcade in Python3

Arcade is a Python library used to create 2D games and applications. It provides easy-to-use functionality for drawing shapes and images on the screen. In this article, we will learn how to draw circles using Arcade in Python3.

Installing Arcade

Before drawing circles, install the Arcade library using pip ?

pip install arcade

Method 1: Using arcade.draw_circle_filled()

The most straightforward way to draw a circle is using the draw_circle_filled() method.

Syntax

arcade.draw_circle_filled(x, y, radius, color)

Parameters

• x ? The x-coordinate of the circle's center point

• y ? The y-coordinate of the circle's center point

• radius ? The radius of the circle

• color ? The color as an arcade.color constant, RGB tuple, or RGBA tuple

Example

Here's a complete example that creates a window and draws a red circle ?

import arcade

# Set up the window
WIDTH = 640
HEIGHT = 480
window = arcade.open_window(WIDTH, HEIGHT, "Drawing a Circle")

# Set the background color
arcade.set_background_color(arcade.color.WHITE)

# Start the render process
arcade.start_render()

# Draw a red circle in the center of the screen
x = WIDTH // 2
y = HEIGHT // 2
radius = 100
color = arcade.color.RED
arcade.draw_circle_filled(x, y, radius, color)

# Finish the render process and display the window
arcade.finish_render()
arcade.run()

Output

Method 2: Using arcade.draw_ellipse_filled()

You can also draw a circle using draw_ellipse_filled() by setting equal width and height values.

Syntax

arcade.draw_ellipse_filled(x, y, width, height, color)

Parameters

• x ? The x-coordinate of the ellipse's center point

• y ? The y-coordinate of the ellipse's center point

• width ? The width of the ellipse

• height ? The height of the ellipse

• color ? The color specification

Example

This example draws a blue circle using the ellipse function with equal width and height ?

import arcade

# Set up the window
WIDTH = 640
HEIGHT = 480
window = arcade.open_window(WIDTH, HEIGHT, "Drawing a Circle with Ellipse")

# Set the background color
arcade.set_background_color(arcade.color.WHITE)

# Start the render process
arcade.start_render()

# Draw a blue circle using the ellipse function
x = WIDTH // 2
y = HEIGHT // 2
width = 200
height = 200  # Same as width to make it a circle
color = arcade.color.BLUE
arcade.draw_ellipse_filled(x, y, width, height, color)

# Finish the render process and display the window
arcade.finish_render()
arcade.run()

Output

Drawing Multiple Circles

You can draw multiple circles with different colors and sizes ?

import arcade

# Set up the window
WIDTH = 640
HEIGHT = 480
window = arcade.open_window(WIDTH, HEIGHT, "Multiple Circles")

# Set the background color
arcade.set_background_color(arcade.color.WHITE)

# Start the render process
arcade.start_render()

# Draw multiple circles
arcade.draw_circle_filled(200, 300, 50, arcade.color.RED)
arcade.draw_circle_filled(320, 300, 75, arcade.color.GREEN)
arcade.draw_circle_filled(440, 300, 60, arcade.color.BLUE)

# Finish the render process and display the window
arcade.finish_render()
arcade.run()

Comparison

Conclusion

Arcade provides simple methods to draw circles using draw_circle_filled() or draw_ellipse_filled(). Both methods require setting up a window, background, and rendering process. Use draw_circle_filled() for straightforward circle drawing.