Struct LSystem 

pub struct LSystem {
    pub axiom: String,
    pub rules: HashMap<char, String>,
}

LSystem

What it says on the box; a simple L-system implementation for use with plotter based fractal art.

Example

use aoer_plotty_rs::turtle::{TurtleTrait, Turtle, degrees};
use aoer_plotty_rs::l_system::LSystem;
use aoer_plotty_rs::geo_types::nannou::NannouDrawer;
use std::collections::HashMap;
use nannou::lyon::tessellation::{LineCap, LineJoin};
use nannou::Draw;

let draw = Draw::new();
let gosper = LSystem{
    axiom: "A".to_string(),
    rules: HashMap::from([
        ('A', "A-B--B+A++AA+B-".to_string()),
        ('B', "+A-BB--B-A++A+B". to_string())])
    };

let tlines = Turtle::new()
    .pen_down()
    .walk_lpath(&gosper.expand(4), degrees(60.0), 8.0)
    .to_multiline();
for line in tlines {
    draw.polyline()
        .stroke_weight(3.0)
        .caps(LineCap::Round)
        .join(LineJoin::Round)
        .polyline_from_linestring(&line)
        .color(nannou::color::NAVY);
}

Fields

axiom: String

rules: HashMap<char, String>

Implementations

impl LSystem

pub fn expand(&self, order: u32) -> String

#expand

Expands the L-system by the requested “order” of iterations. Returns a string representing the state of the L-system. Useful with crate::turtle::TurtleTrait::walk_lpath

Trait Implementations

impl Clone for LSystem

fn clone(&self) -> LSystem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LSystem

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.