Write a program that will draw four tri-colored triangles next to one another in the center of the canvas.

Question

Make sure your triangles:

Have sides of different colors (red, green and blue!)
Have sides that are 50 pixels long
Are centered around the y-axis
Have sides drawn with a thickness of 5 pixels
Hints:

Tracy is drawing 4 triangles, which means that 2 should be left of center and 2 should be right of center. Each triangle has a width of 50. This should help you figure out where to place Tracy to center your triangles!
Try to figure out how you can use a for loop to shorten your code!

Answer 1

You can create a program to draw four tri-colored triangles using the turtle graphics library in Python. Below is an example code that accomplishes this task. The code places the triangles centered around the y-axis and uses a loop to manage the drawing of the triangles efficiently.

import turtle

# Function to draw a triangle
def draw_triangle(x, y, color1, color2, color3):
    turtle.penup()
    turtle.goto(x, y)
    turtle.pendown()
    turtle.pensize(5)

    # Set colors for the sides of the triangle
    turtle.color(color1)  # Side 1
    turtle.setheading(60)
    turtle.forward(50)
    
    turtle.color(color2)  # Side 2
    turtle.setheading(-120)
    turtle.forward(50)
    
    turtle.color(color3)  # Side 3
    turtle.setheading(180)
    turtle.forward(50)
    
    turtle.setheading(60)  # Return to the starting point
    turtle.penup()
    turtle.goto(x, y)

# Main function to draw the triangles
def main():
    turtle.speed(5)
    
    # Loop to draw four triangles
    colors = [("red", "green", "blue"), ("blue", "red", "green"), 
              ("green", "blue", "red"), ("red", "green", "blue")]
    x_positions = [-75, -25, 25, 75]  # X offsets for centering
    
    # Draw triangles at specified positions with associated colors
    for i in range(4):
        draw_triangle(x_positions[i], 0, colors[i][0], colors[i][1], colors[i][2])
    
    turtle.hideturtle()
    turtle.done()

# Run the program
main()

Explanation:

1. Function to Draw Triangle:

   • draw_triangle(x, y, color1, color2, color3) function takes coordinates for the starting point (x, y) and the colors of the sides as parameters.
   • The function uses turtle graphics to draw the triangle with the specified colors for each side.

2. Main Function:

   • The main() function sets the drawing speed and defines two lists: one for the colors and another for the x-positions of the triangles.
   • A loop iterates through the indices of the triangles, calling draw_triangle with the appropriate coordinates and colors.

3. Execution:

   • The main() function is called to execute the drawing commands.

Setting Up:

To run this program, ensure you have Python installed, and you can save the code into a .py file and execute it. The turtle graphics window will open, and you will see the four tri-colored triangles drawn in the specified arrangement.