Introduction:

• Welcome to BlockPyArt, an exciting way to learn programming by drawing shapes and patterns on a screen. This tutorial focuses on commands for drawing different shapes and patterns. Remember: Always use the “start” block to activate the BlockPyArt console. If you do not start with the start block, you will encounter an error and the commands will not work properly.

Drawing Shapes and Patterns

1. circle(radius):
   • Purpose: Draws a circle with the specified radius.

   • Example:

     

     python

     import turtle
     turtle.mainloop()
     
     turtle.circle(50)  # int
     
     turtle.circle(10.5)  # float
     
     turtle.circle(-30)  # negative int
     

     Code Lab
   • Exercise: Draw circles with radii of 25, 5.75, and -15 pixels respectively.
2. dot(size):
   • Purpose: Draws a dot with the specified size.

   • Example:

     

     python

     import turtle
     turtle.mainloop()
     
     turtle.dot(20)  # int
     
     turtle.dot(4.5)  # float
     
     turtle.dot(-10)  # negative int
     

     Code Lab
   • Exercise: Draw dots with sizes of 15, 3.25, and -7 pixels respectively.
3. stamp():
   • Purpose: Stamps a copy of the block's shape at the current position.

   • Example:

     

     python

     import turtle
     turtle.mainloop()
     
     turtle.stamp()
     

     Code Lab

   • Exercise: Move the block forward by 100 pixels and stamp a copy at the new position.

     

     python

     import turtle
     turtle.mainloop()
     
     turtle.forward(100)
     turtle.stamp()
     

     Code Lab

Exercises

1. Draw a Circle Pattern:

   • Write a program to draw three circles of different radii.

     

     python

     import turtle
     turtle.mainloop()
     
     turtle.circle(50)
     turtle.penup()
     turtle.goto(100, 0)
     turtle.pendown()
     turtle.circle(30)
     turtle.penup()
     turtle.goto(200, 0)
     turtle.pendown()
     turtle.circle(10)
     

     Code Lab
2. Draw a Dot Pattern:

   • Write a program to draw dots of various sizes in a line.

     

     python

     import turtle
     turtle.mainloop()
     
     turtle.dot(20)
     turtle.penup()
     turtle.goto(50, 0)
     turtle.pendown()
     turtle.dot(10)
     turtle.penup()
     turtle.goto(100, 0)
     turtle.pendown()
     turtle.dot(5)
     

     Code Lab
3. Stamp Pattern:

   • Write a program to stamp the block's shape at different positions.

     

     python

     import turtle
     turtle.mainloop()
     
     turtle.stamp()
     turtle.penup()
     turtle.goto(50, 50)
     turtle.pendown()
     turtle.stamp()
     turtle.penup()
     turtle.goto(100, 100)
     turtle.pendown()
     turtle.stamp()
     

     Code Lab

Summary:

• In this tutorial, we learned how to draw shapes and patterns in BlockPyArt using the commands circle(), dot(), and stamp(). Remember to always use the start block to activate the BlockPyArt console. If you cannot start using the BlockPyArt blocks, there will be an error. Practice these commands and exercises to get comfortable with drawing shapes and patterns in BlockPyArt!