Hollow Rectangle Pattern Plot using python

 

import matplotlib.pyplot as plt

def plot_hollow_rectangle(width, height):

    plt.figure(figsize=(6, 6))

    for x in range(width):

        plt.scatter(x, 0, s=200, c='black')

        plt.scatter(x, height-1, s=200, c='black')

        for y in range(height):

        plt.scatter(0, y, s=200, c='black')

        plt.scatter(width-1, y, s=200, c='black')

     plt.xlim(-1, width)

    plt.ylim(-1, height)

    plt.axis('off')

    plt.gca().set_aspect('equal', adjustable='datalim')

    plt.title("Hollow Rectangle Pattern Plot", fontsize=14)

    plt.show()

plot_hollow_rectangle(10, 6)

#source code --> clcoding.com 

Code Explanation:

1. Importing Required Library

import matplotlib.pyplot as plt

This imports matplotlib.pyplot, a popular library for creating plots and visualizations.

2. Defining the Function

def plot_hollow_rectangle(width, height):

This function takes two parameters: width (number of columns) and height (number of rows) to define the size of the rectangle.

3. Creating the Figure

plt.figure(figsize=(6, 6))

This initializes a new figure with a fixed size of 6x6 inches for consistent visualization.

4. Plotting the Top and Bottom Borders

for x in range(width):

    plt.scatter(x, 0, s=200, c='black')

    plt.scatter(x, height-1, s=200, c='black')

The loop iterates through all x positions from 0 to width-1:

plt.scatter(x, 0, s=200, c='black') → Plots points at the bottom of the rectangle.

plt.scatter(x, height-1, s=200, c='black') → Plots points at the top of the rectangle.

5. Plotting the Left and Right Borders

for y in range(height):

    plt.scatter(0, y, s=200, c='black')

    plt.scatter(width-1, y, s=200, c='black')

The loop iterates through all y positions from 0 to height-1:

plt.scatter(0, y, s=200, c='black') → Plots points at the left border.

plt.scatter(width-1, y, s=200, c='black') → Plots points at the right border.

6. Adjusting the Plot Limits

plt.xlim(-1, width)

plt.ylim(-1, height)

This ensures the plot is within the expected range, adding some padding for visibility.

7. Removing Axes and Setting Aspect Ratio

plt.axis('off')

plt.gca().set_aspect('equal', adjustable='datalim')

plt.axis('off') → Hides the axes for a cleaner appearance.

plt.gca().set_aspect('equal', adjustable='datalim') → Ensures that the aspect ratio of the points remains equal, preventing distortions.

8. Adding a Title

plt.title("Hollow Rectangle Pattern Plot", fontsize=14)

This adds a title to the plot for better understanding.

9. Displaying the Plot

plt.show()

This renders and displays the final hollow rectangle pattern.