sidef-scripts/Image/koch_snowflake.sf

#!/usr/bin/ruby

# https://rosettacode.org/wiki/Koch_curve

include('LSystem/LSystem.sf')

var rules = Hash(
    F => 'F+F--F+F',
)

var lsys = LSystem(
    width:  900,
    height: 900,

    xoff: -240,
    yoff: -100,

    len:   3,
    angle: 60,
    color: 'dark green',
)

lsys.execute('F--F--F', 5, "koch_snowflake.png", rules)