first commit
This commit is contained in:
Clemens-Dautermann
commit
55b28bfa20
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||||||
|
"weezl",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "uuid"
|
||||||
|
version = "0.8.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
|
||||||
|
dependencies = [
|
||||||
|
"getrandom",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "wasi"
|
||||||
|
version = "0.10.2+wasi-snapshot-preview1"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "weezl"
|
||||||
|
version = "0.1.4"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "4a32b378380f4e9869b22f0b5177c68a5519f03b3454fde0b291455ddbae266c"
|
||||||
12
Cargo.toml
Normal file
12
Cargo.toml
Normal file
|
|
@ -0,0 +1,12 @@
|
||||||
|
[package]
|
||||||
|
name = "mandelbrot"
|
||||||
|
version = "0.1.0"
|
||||||
|
authors = ["Clemens-Dautermann <clemens.dautermann@t-online.de>"]
|
||||||
|
edition = "2018"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
image = "0.23.14"
|
||||||
|
num-complex = "0.4.0"
|
||||||
|
uuid = { version = "0.8", features = ["v4"] }
|
||||||
1
README.md
Normal file
1
README.md
Normal file
|
|
@ -0,0 +1 @@
|
||||||
|
# mandelbrot
|
||||||
BIN
big.png
Normal file
BIN
big.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 125 KiB |
BIN
colortest.png
Normal file
BIN
colortest.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 119 KiB |
92
src/main.rs
Normal file
92
src/main.rs
Normal file
|
|
@ -0,0 +1,92 @@
|
||||||
|
extern crate image;
|
||||||
|
extern crate num_complex;
|
||||||
|
|
||||||
|
use image::{RgbImage, ImageBuffer, Rgb};
|
||||||
|
use std::fmt::Error;
|
||||||
|
use num_complex::Complex;
|
||||||
|
use uuid::Uuid;
|
||||||
|
use std::ops::Add;
|
||||||
|
|
||||||
|
const THRESHHOLD: f64 = 200.0;
|
||||||
|
|
||||||
|
fn calculate_color(number: Complex<f64>, iterations: u32) -> Result<Rgb<u8>, Error> {
|
||||||
|
let mut z: Complex<f64> = Complex::new(0.0, 0.0);
|
||||||
|
let mut cycle = Vec::with_capacity(iterations as usize);
|
||||||
|
|
||||||
|
for i in 0..iterations {
|
||||||
|
z = z * z + number;
|
||||||
|
|
||||||
|
if cycle.contains(&z) { return Ok(Rgb::from([0, 0, 0])); }
|
||||||
|
|
||||||
|
if z.norm() > THRESHHOLD {
|
||||||
|
return Ok(map_num_to_color(i, iterations));
|
||||||
|
}
|
||||||
|
|
||||||
|
cycle.push(z);
|
||||||
|
}
|
||||||
|
Ok(map_num_to_color(iterations, iterations))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn map_num_to_color(i: u32, maximum: u32) -> Rgb<u8> {
|
||||||
|
if i == maximum { return Rgb::from([0, 0, 0]); }
|
||||||
|
let frac: f32 = (i as f32 / maximum as f32) * 255.0 * 3.0;
|
||||||
|
|
||||||
|
let r: u8;
|
||||||
|
if frac / 3.0 >= 255.0 {
|
||||||
|
r = 255
|
||||||
|
} else { r = (frac as i32 % 255) as u8 }
|
||||||
|
|
||||||
|
let g: u8;
|
||||||
|
if frac / 3.0 >= 255.0 * 2.0 {
|
||||||
|
g = 255
|
||||||
|
} else { g = (frac as i32 % 255) as u8 }
|
||||||
|
|
||||||
|
let b: u8;
|
||||||
|
if frac / 3.0 >= 255.0 * 3.0 {
|
||||||
|
b = 255
|
||||||
|
} else { b = (frac as i32 % 255) as u8 }
|
||||||
|
|
||||||
|
Rgb::from([r, g, b])
|
||||||
|
}
|
||||||
|
|
||||||
|
fn generate_mandelbrot(width: u32,
|
||||||
|
height: u32,
|
||||||
|
iterations: u32,
|
||||||
|
upper_left: Complex<f64>,
|
||||||
|
lower_right: Complex<f64>) -> Result<RgbImage, Error> {
|
||||||
|
let mut out_image: RgbImage = ImageBuffer::new(width, height);
|
||||||
|
|
||||||
|
let section_width: f64 = (upper_left.re - lower_right.re).abs();
|
||||||
|
let section_height: f64 = (upper_left.im - lower_right.im).abs();
|
||||||
|
|
||||||
|
for x in 0..width {
|
||||||
|
println!("Col: {}", x);
|
||||||
|
for y in 0..height {
|
||||||
|
let x_offset: f64 = (x as f64 / width as f64) * section_width;
|
||||||
|
let y_offset: f64 = (y as f64 / width as f64) * section_height;
|
||||||
|
|
||||||
|
let color = calculate_color(
|
||||||
|
Complex::new(upper_left.re + x_offset, upper_left.im + y_offset),
|
||||||
|
iterations).unwrap();
|
||||||
|
|
||||||
|
out_image.put_pixel(x, y, color);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(out_image)
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
let fractal: RgbImage = generate_mandelbrot(4096,
|
||||||
|
4096,
|
||||||
|
100,
|
||||||
|
Complex::new(-0.7, -0.7),
|
||||||
|
Complex::new(-0.4, -0.4))
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
let filename: String = String::from("mandelbrot_")
|
||||||
|
.add(&Uuid::new_v4().to_string()) + ".png";
|
||||||
|
|
||||||
|
fractal.save(filename).unwrap();
|
||||||
|
}
|
||||||
BIN
subset.png
Normal file
BIN
subset.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 333 KiB |
BIN
test.png
Normal file
BIN
test.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 42 KiB |
Loading…
Add table
Add a link
Reference in a new issue