23 Sep turtle.get_shapepoly() function in Python

The turtle.get_shapepoly() function returns the coordinates of the given shape as a tuple of coordinate pairs. Used to inspect the vertices of a shape.

Syntax: turtle.get_shapepoly()
Parameters: None.

Let us see an example to implement the turtle.get_shapepoly() function in Python:

Demo66.py

# turtle.get_shapepoly() function in Python
# Code by Studyopedia

import turtle

window = turtle.Screen()
t = turtle.Turtle()

# Register a custom polygon shape
turtle.register_shape("triangle", ((0, 0), (50, 0), (25, 50)))

# Set the turtle's shape to the custom polygon
t.shape("triangle")

# Now get the polygon coordinates
poly = turtle.get_shapepoly()
print("Triangle shape polygon:", poly)

window.exitonclick()

The following is the output:

In the above code, we followed the below steps:

• Import module: import turtle loads the turtle graphics library.
• Create screen: window = turtle.Screen() opens the drawing window.
• Create turtle: t = turtle.Turtle() creates the turtle you’ll control.
• Register custom shape: turtle.register_shape("triangle", ((0, 0), (50, 0), (25, 50))) defines a new polygon shape named "triangle" using three coordinate points. This shape is now available for use.
• Set turtle shape: t.shape("triangle") sets the turtle’s appearance to the newly registered triangle shape.
• Get polygon coordinates: poly = turtle.get_shapepoly() retrieves the list of (x, y) coordinate pairs that define the current turtle shape — in this case, the triangle.
• Print polygon: print("Triangle shape polygon:", poly) outputs the shape’s coordinates to the console.
• Close on click: window.exitonclick() waits for a mouse click, then closes the window.

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