smithers.extras
Class Lindenmayer

java.lang.Object
  smithers.extras.Lindenmayer

public class Lindenmayer
extends java.lang.Object

Implements Lindenmayer systems and displays output with turtle graphics.

Constructor Summary

Lindenmayer(java.lang.String axiom, java.util.Map<java.lang.String,java.lang.String> rules)
Creates a new Lindenmayer system.

Method Summary

static java.lang.String	evolveToString(java.lang.String axiom, java.util.Map<java.lang.String,java.lang.String> rules, int steps) Creates a Lindenmayer system, evolves it for a number of steps, and outputs as a string.
static void	evolveToTG(java.lang.String axiom, java.util.Map<java.lang.String,java.lang.String> rules, int steps, double angle, double distance, double x, double y, double dir, double width, double height, java.lang.String fileName) Creates a Lindenmayer system, evolves it for a number of steps, and outputs using turtle graphics, saving as an SVG file.
java.lang.String	getState() Gets the current state.
static void	main(java.lang.String[] args) Tester.
void	nextStep() Performs one step of the evolution.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Lindenmayer

public Lindenmayer(java.lang.String axiom,
                   java.util.Map<java.lang.String,java.lang.String> rules)

Creates a new Lindenmayer system.

Parameters:

axiom - the initial state

rules - the replacement rules

Method Detail

getState

public java.lang.String getState()

Gets the current state.

Returns:

the current state

nextStep

public void nextStep()

Performs one step of the evolution.

evolveToString

public static java.lang.String evolveToString(java.lang.String axiom,
                                              java.util.Map<java.lang.String,java.lang.String> rules,
                                              int steps)

Creates a Lindenmayer system, evolves it for a number of steps, and outputs as a string.

Parameters:

axiom - the initial state of the system

rules - the rules for the system

steps - the number of steps to run

evolveToTG

public static void evolveToTG(java.lang.String axiom,
                              java.util.Map<java.lang.String,java.lang.String> rules,
                              int steps,
                              double angle,
                              double distance,
                              double x,
                              double y,
                              double dir,
                              double width,
                              double height,
                              java.lang.String fileName)
                       throws java.io.IOException

Creates a Lindenmayer system, evolves it for a number of steps, and outputs using turtle graphics, saving as an SVG file.

Parameters:

axiom - the initial state of the system

rules - the rules for the system

steps - the number of steps to run

angle - the angle to turn by

distance - the distance to move

x - the initial x-coordinate

y - the initial y-coordinate

dir - the initial direction

width - the width of the image

height - the height of the image

fileName - the filename to save under

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Tester. Set the first argument to "-s" for a sierpinksi triangle, or "-p" for a penrose tiling.

Parameters:

args - the arguments

Throws:

java.io.IOException