Recursive patterns – the Koch snowflake

The Koch curve can be extended by placing three copies of the Koch curve outward around the three sides of an equilateral triangle to form a simple closed curve that forms the boundary of a Koch snowflake.

Once we have the code for the recursive Koch curve, implementing the snowflake is trivial. It basically involves generating a Koch curve, rotating 120°, generating another Koch curve, rotating another 120°, and then generating the final Koch curve.

Here is the processing code, which can be used with the quick recursive functions described previously.

void kochSnowflake(float lngth, int level) {

Here is the output for lngth=200, and a level=4.

Koch snowflake

A 4-degree Koch snowflake


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