Add rust code

6 files changed, 167 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..d7e9609
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,44 @@
+pub mod plot;
+mod simulation;
+use plot::Graph;
+
+fn main() {
+    println!("Hello, world!");
+    plot::Gnuplot::plot3d(
+        vec![
+            [
+                0.14285714285714296,
+                0.5714285714285717,
+                0.0,
+                0.5714285714285717,
+                0.5714285714285717,
+                0.0,
+            ],
+            [
+                0.11910591478146304,
+                0.5652016093730936,
+                -0.01707887122942119,
+                0.6464319082591804,
+                0.498191752207936,
+                0.0002,
+            ],
+            [
+                0.21910591478146304,
+                0.7652016093730936,
+                -0.01707887122942119,
+                0.6464319082591804,
+                0.498191752207936,
+                0.0002,
+            ],
+            [
+                0.01910591478146304,
+                0.8652016093730936,
+                -0.01707887122942119,
+                0.6464319082591804,
+                0.498191752207936,
+                0.0002,
+            ],
+        ],
+        1,
+    )
+}
diff --git a/src/plot/gnuplot.rs b/src/plot/gnuplot.rs
new file mode 100644
index 0000000..b0d63d8
--- /dev/null
+++ b/src/plot/gnuplot.rs
@@ -0,0 +1,72 @@
+use std::io;
+use std::io::Write;
+use std::path::PathBuf;
+use std::process;
+use std::process::{Command, Stdio};
+
+pub struct Gnuplot;
+
+impl Gnuplot {
+    fn exec_plot(
+        data: Vec<[f64; 6]>,
+        chunk_size: u32,
+        start: usize,
+        end: usize,
+        script: &str,
+    ) -> Result<process::Child, io::Error> {
+        let mut path = PathBuf::from("gnuplot");
+        path.push(script);
+        let mut file = std::fs::File::create("data").expect("could not create data file");
+        let process = Command::new("gnuplot")
+            .args(&[
+                "-e",
+                format!("states={}; start={}; end={}", chunk_size, start, end).as_ref(),
+                "-c",
+                path.to_str().unwrap_or(script),
+            ])
+            .stdin(process::Stdio::piped())
+            .stdout(Stdio::piped())
+            .spawn()
+            .expect("Failed to spawn child process");
+
+        //let stdin = process.stdin.as_mut().expect("Failed to open stdin");
+        for line in data {
+            let line = format!(
+                "{}; {}; {}; {}; {}; {}\n",
+                line[0], line[1], line[2], line[3], line[4], line[5]
+            );
+            file.write_all(line.as_bytes())
+                .expect("Failed to write to stdin");
+        }
+        Ok(process)
+    }
+}
+
+impl super::Graph for Gnuplot {
+    fn plot3d(data: Vec<[f64; 6]>, chunk_size: u32) {
+        let iterations = data.len() / chunk_size as usize;
+        match Gnuplot::exec_plot(data, chunk_size, 1, iterations, "anim3d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+    fn animate3d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize) {
+        match Gnuplot::exec_plot(data, chunk_size, start, end, "anim3d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+    fn plot2d(data: Vec<[f64; 6]>, chunk_size: u32) {
+        let iterations = data.len() / chunk_size as usize;
+        match Gnuplot::exec_plot(data, chunk_size, 1, iterations, "anim2d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+    fn animate2d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize) {
+        match Gnuplot::exec_plot(data, chunk_size, start, end, "anim2d.plt") {
+            Ok(mut process) => println!("opening gnuplot {:?}", process.wait()),
+            Err(err) => println!("failed to start gnuplot: {}", err),
+        }
+    }
+}
diff --git a/src/plot/mod.rs b/src/plot/mod.rs
new file mode 100644
index 0000000..8773020
--- /dev/null
+++ b/src/plot/mod.rs
@@ -0,0 +1,9 @@
+pub mod gnuplot;
+pub use gnuplot::Gnuplot;
+
+pub trait Graph {
+    fn plot3d(data: Vec<[f64; 6]>, chunk_size: u32);
+    fn animate3d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize);
+    fn plot2d(data: Vec<[f64; 6]>, chunk_size: u32);
+    fn animate2d(data: Vec<[f64; 6]>, chunk_size: u32, start: usize, end: usize);
+}
diff --git a/src/simulation/mod.rs b/src/simulation/mod.rs
new file mode 100644
index 0000000..290c3e6
--- /dev/null
+++ b/src/simulation/mod.rs
@@ -0,0 +1,5 @@
+pub mod time_evolution;
+pub mod two_level;
+
+#[allow(non_camel_case_types)]
+pub(crate) type c64 = num_complex::Complex<f64>;
diff --git a/src/simulation/time_evolution.rs b/src/simulation/time_evolution.rs
new file mode 100644
index 0000000..61c609e
--- /dev/null
+++ b/src/simulation/time_evolution.rs
@@ -0,0 +1,11 @@
+use super::c64;
+use ndarray::{Array1, Array2};
+
+pub trait MatrixGen {
+    fn gen(t: f64) -> Array2<c64>;
+}
+
+pub trait State {
+    fn fibrate(&self) -> Array1<c64>;
+    fn evolve<G: MatrixGen>(self, t: f64) -> Self;
+}
diff --git a/src/simulation/two_level.rs b/src/simulation/two_level.rs
new file mode 100644
index 0000000..38a65d9
--- /dev/null
+++ b/src/simulation/two_level.rs
@@ -0,0 +1,26 @@
+use super::c64;
+use super::time_evolution::State;
+use ndarray::prelude::*;
+
+pub struct TwoLevel {
+    state: Array1<c64>,
+}
+
+impl TwoLevel {
+    pub fn new(alpha: c64, beta: c64) -> TwoLevel {
+        TwoLevel {
+            state: array![alpha, beta],
+        }
+    }
+}
+
+impl State for TwoLevel {
+    fn fibrate(&self) -> Array1<c64> {
+        self.state.clone()
+    }
+
+    fn evolve<G: super::time_evolution::MatrixGen>(mut self, t: f64) -> Self {
+        self.state = self.state.dot(&G::gen(t));
+        self
+    }
+}