From 5fa0d5d889dff17a8e011971d80de7661ae130eb Mon Sep 17 00:00:00 2001
From: Dennis Kobert <dennis@kobert.dev>
Date: Thu, 12 Dec 2019 21:25:04 +0100
Subject: Add rust code

---
 src/plot/gnuplot.rs | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 src/plot/gnuplot.rs

(limited to 'src/plot/gnuplot.rs')

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),
+        }
+    }
+}
-- 
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