Python Turtle Graphics Tutorial: Creating a Circle Snowflake with Recursion and Random Colors смотреть онлайн

This Python code uses the turtle module to draw a fractal pattern called a "Circleflake". The circleflake pattern is created by recursively drawing circles within circles and then drawing smaller circles at the points where the larger circles intersect. The number of iterations is determined by the parameter "n".

The code begins by setting up the turtle screen and setting the fill and pen colors. It then defines two functions: "circle" and "circleflake".

The "circle" function takes three parameters: x, y, and r (the center coordinates and radius of the circle, respectively). It uses the turtle module to draw a filled circle on the screen at the given location.

The "circleflake" function takes four parameters: x, y, r, and n (the center coordinates and radius of the circleflake, and the number of iterations to create the fractal pattern, respectively). It is defined recursively, with a base case of n=0. When n=0, the function simply draws a circle using the "circle" function.

If n is not 0, the function recursively calls itself on smaller circles within the larger circle (with radius r/3). It then iterates over 6 directions (corresponding to the points where the circles intersect) and recursively calls itself on the smaller circles at those points. The direction is incremented by 60 degrees for each iteration, since there are 6 points around the circle.

Finally, the "circleflake" function is called with the initial parameters (center at (0,0), radius 900, and 5 iterations). The screen is then updated and the turtle is set to done.

Overall, this code demonstrates how recursion can be used to create complex patterns from simple shapes, and how the turtle module can be used to draw these patterns on the screen.

.py link:
https://mega.nz/file/H7wSiYTI#lCECsJT4-2OsSqLUphBuvkrpJnabKOsITwwNyPCJNtQ