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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: &[[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: &[[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: &[[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: &[[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: &[[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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