Sameer Puri
6 years ago
commit
439f4859b8
@ -0,0 +1,2 @@
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/target
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**/*.rs.bk
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@ -0,0 +1,116 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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||||
name = "bitflags"
|
||||
version = "1.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
|
||||
[[package]]
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||||
name = "cairo-rs"
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||||
version = "0.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
dependencies = [
|
||||
"bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"cairo-sys-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"glib 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
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||||
"glib-sys 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
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||||
"gobject-sys 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
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"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "cairo-sys-rs"
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version = "0.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"glib-sys 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
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"pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "glib"
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version = "0.7.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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[[package]]
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name = "glib-sys"
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"libc 0.2.51 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "gobject-sys"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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"pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
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[[package]]
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name = "lazy_static"
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version = "1.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "libc"
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version = "0.2.51"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "lsys"
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version = "0.1.0"
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dependencies = [
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[[package]]
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name = "pkg-config"
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version = "0.3.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "winapi"
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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[[package]]
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[metadata]
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@ -0,0 +1,8 @@
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[package]
|
||||
name = "lsys"
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version = "0.1.0"
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||||
authors = ["purisame"]
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||||
edition = "2018"
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||||
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||||
[dependencies]
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||||
cairo-rs = { version = "^0", features = ["svg"] }
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@ -0,0 +1,15 @@
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# L-systems in Rust
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Renderings of various L-systems using Rust and Cairo.
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## Sierpinski Triangle
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## Sierpinski Arrowhead
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## Koch Curve
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## Dragon Curve
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|
After Width: | Height: | Size: 2.1 KiB |
|
After Width: | Height: | Size: 23 KiB |
|
After Width: | Height: | Size: 12 KiB |
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After Width: | Height: | Size: 3.9 KiB |
@ -0,0 +1,119 @@
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extern crate cairo;
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use cairo::{svg, Context};
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use std::fs::File;
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use std::io::Write;
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fn main() {
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koch();
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sierpinski();
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arrowhead();
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dragon();
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}
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fn koch() {
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let mut out = File::create("koch.svg").unwrap();
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run(
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"F",
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&['F'],
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|c: char| match c {
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'F' => "F+F-F-F+F".chars().collect(),
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other => vec![other],
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},
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std::f64::consts::PI / 2.,
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4,
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&mut out,
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);
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}
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fn sierpinski() {
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let mut out = File::create("sierpinski.svg").unwrap();
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run(
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"F-G-G",
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&['F', 'G'],
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|c: char| match c {
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'F' => "F-G+F+G-F".chars().collect(),
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'G' => "GG".chars().collect(),
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other => vec![other],
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},
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std::f64::consts::PI * 2. / 3.,
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4,
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&mut out,
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);
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}
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fn arrowhead() {
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let mut out = File::create("arrowhead.svg").unwrap();
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run(
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"A",
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&['A', 'B'],
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|c: char| match c {
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'A' => "B-A-B".chars().collect(),
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'B' => "A+B+A".chars().collect(),
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other => vec![other],
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},
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std::f64::consts::PI * 1. / 3.,
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4,
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&mut out,
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);
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}
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fn dragon() {
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let mut out = File::create("dragon.svg").unwrap();
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run(
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"FX",
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&['F'],
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|c: char| match c {
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'X' => "X+YF+".chars().collect(),
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'Y' => "-FX-Y".chars().collect(),
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other => vec![other],
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},
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std::f64::consts::PI / 2.,
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10,
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&mut out,
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);
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}
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fn run<F, W>(axiom: &str, variables: &[char], rules: F, angle: f64, iterations: usize, writer: W)
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where
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F: Fn(char) -> Vec<char> + Copy,
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W: Write,
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{
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let surf = svg::Writer::new(1024.0, 1024.0, writer);
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let ctx = Context::new(&surf);
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ctx.scale(1024., 1024.);
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ctx.set_line_width(0.001);
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ctx.set_source_rgb(0., 0., 0.);
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let mut state = axiom.to_string();
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for _ in 0..iterations {
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state = state.chars().map(rules).flatten().collect();
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}
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// let segment_count = state.chars().filter(|c| variables.contains(&c)).count();
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ctx.move_to(0.0, 0.5);
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for c in state.chars() {
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match c {
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'+' => {
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ctx.rotate(-angle);
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}
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'-' => {
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ctx.rotate(angle);
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}
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other => {
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if variables.contains(&other) {
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ctx.rel_line_to(0.01, 0.0);
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}
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}
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}
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}
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ctx.stroke();
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// let mut fout = File::create("out.png").unwrap();
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// surf.write_all(&mut fout).unwrap();
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// println!("{}", axiom);
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}
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Loading…
Reference in new issue