Using octave for a square koch

I have done the traditional koch snowflake and I am struggling to do a square koch fractal on octave. Can anyone write me up a code to see how it's done?

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer