add screenshotting

.gitignore

@@ -1 +1,2 @@
 /target
+data.csv

Cargo.lock

@@ -20,6 +20,15 @@ dependencies = [
  "zerocopy",
 ]
 
+[[package]]
+name = "android_system_properties"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "819e7219dbd41043ac279b19830f2efc897156490d7fd6ea916720117ee66311"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.4.0"
@@ -38,6 +47,12 @@ version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
+[[package]]
+name = "bumpalo"
+version = "3.19.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5dd9dc738b7a8311c7ade152424974d8115f2cdad61e8dab8dac9f2362298510"
+
 [[package]]
 name = "bytemuck"
 version = "1.18.0"
@@ -50,12 +65,35 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
+[[package]]
+name = "cc"
+version = "1.2.54"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6354c81bbfd62d9cfa9cb3c773c2b7b2a3a482d569de977fd0e961f6e7c00583"
+dependencies = [
+ "find-msvc-tools",
+ "shlex",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fac4744fb15ae8337dc853fee7fb3f4e48c0fbaa23d0afe49c447b4fab126118"
+dependencies = [
+ "iana-time-zone",
+ "js-sys",
+ "num-traits",
+ "wasm-bindgen",
+ "windows-link",
+]
+
 [[package]]
 name = "color_quant"
 version = "1.1.0"
@@ -86,6 +124,12 @@ dependencies = [
  "simd-adler32",
 ]
 
+[[package]]
+name = "find-msvc-tools"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8591b0bcc8a98a64310a2fae1bb3e9b8564dd10e381e6e28010fde8e8e8568db"
+
 [[package]]
 name = "flate2"
 version = "1.0.34"
@@ -121,6 +165,30 @@ dependencies = [
  "ahash",
 ]
 
+[[package]]
+name = "iana-time-zone"
+version = "0.1.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e31bc9ad994ba00e440a8aa5c9ef0ec67d5cb5e5cb0cc7f8b744a35b389cc470"
+dependencies = [
+ "android_system_properties",
+ "core-foundation-sys",
+ "iana-time-zone-haiku",
+ "js-sys",
+ "log",
+ "wasm-bindgen",
+ "windows-core",
+]
+
+[[package]]
+name = "iana-time-zone-haiku"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f31827a206f56af32e590ba56d5d2d085f558508192593743f16b2306495269f"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "image"
 version = "0.24.9"
@@ -144,6 +212,16 @@ dependencies = [
  "mach2",
 ]
 
+[[package]]
+name = "js-sys"
+version = "0.3.85"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c942ebf8e95485ca0d52d97da7c5a2c387d0e7f0ba4c35e93bfcaee045955b3"
+dependencies = [
+ "once_cell",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "libc"
 version = "0.2.159"
@@ -170,6 +248,12 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "log"
+version = "0.4.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
+
 [[package]]
 name = "mach2"
 version = "0.4.2"
@@ -313,6 +397,7 @@ dependencies = [
 name = "quad"
 version = "0.1.0"
 dependencies = [
+ "chrono",
  "macroquad",
  "serialport",
 ]
@@ -332,6 +417,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rustversion"
+version = "1.0.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -356,6 +447,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.7"
@@ -429,6 +526,51 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.108"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64024a30ec1e37399cf85a7ffefebdb72205ca1c972291c51512360d90bd8566"
+dependencies = [
+ "cfg-if",
+ "once_cell",
+ "rustversion",
+ "wasm-bindgen-macro",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.108"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "008b239d9c740232e71bd39e8ef6429d27097518b6b30bdf9086833bd5b6d608"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.108"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5256bae2d58f54820e6490f9839c49780dff84c65aeab9e772f15d5f0e913a55"
+dependencies = [
+ "bumpalo",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.108"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f01b580c9ac74c8d8f0c0e4afb04eeef2acf145458e52c03845ee9cd23e3d12"
+dependencies = [
+ "unicode-ident",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -451,6 +593,65 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-core"
+version = "0.62.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8e83a14d34d0623b51dce9581199302a221863196a1dde71a7663a4c2be9deb"
+dependencies = [
+ "windows-implement",
+ "windows-interface",
+ "windows-link",
+ "windows-result",
+ "windows-strings",
+]
+
+[[package]]
+name = "windows-implement"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "windows-interface"
+version = "0.59.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "windows-link"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
+
+[[package]]
+name = "windows-result"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7781fa89eaf60850ac3d2da7af8e5242a5ea78d1a11c49bf2910bb5a73853eb5"
+dependencies = [
+ "windows-link",
+]
+
+[[package]]
+name = "windows-strings"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7837d08f69c77cf6b07689544538e017c1bfcf57e34b4c0ff58e6c2cd3b37091"
+dependencies = [
+ "windows-link",
+]
+
 [[package]]
 name = "zerocopy"
 version = "0.7.35"

Cargo.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+chrono = "0.4.43"
 macroquad = "0.4.13"
 serialport = "4.5.1"
 

src/main.rs

@@ -1,13 +1,16 @@
 #![feature(random)]
 use core::f32;
 use std::{
-    fs::read_dir,
+    fs::{read_dir, OpenOptions},
+    io::Write,
     path::PathBuf,
+    process::{Command, Stdio},
     sync::mpsc::{self, Receiver, Sender},
     thread::{self, JoinHandle},
-    time::Duration,
+    time::{Duration, SystemTime},
 };
 
+use chrono::{Datelike, Local, Timelike};
 use macroquad::prelude::*;
 
 const THICKNESS: f32 = 2.0;
@@ -19,10 +22,15 @@ static mut PORT: Option<String> = None;
 struct Point {
     x: f32,
     y: f32,
+    time_since_last: f32,
 }
 impl Point {
-    fn new(x: f32, y: f32) -> Self {
+    fn new(x: f32, y: f32, delta: f32) -> Self {
-        Self { x, y }
+        Self {
+            x,
+            y,
+            time_since_last: delta,
+        }
     }
 }
 
@@ -103,7 +111,7 @@ impl<'a> Graph<'a> {
         Self {
             font,
             // start all the dots off screen
-            points: [Point::new(-1., -1.); TAIL_LEN],
+            points: [Point::new(-1., -1., 0.); TAIL_LEN],
             head: 0,
             axises,
             x_origin: x_offset,
@@ -176,6 +184,7 @@ impl<'a> Graph<'a> {
                 self.push(Point::new(
                     self.head_tracker,
                     self.y_origin - y_displacement,
+                    delta_time,
                 ));
             }
             Axis::Two => {
@@ -183,6 +192,7 @@ impl<'a> Graph<'a> {
                 self.push(Point::new(
                     self.x_origin + x_displacement,
                     self.y_origin - y_displacement,
+                    delta_time,
                 ))
             }
         }
@@ -339,12 +349,55 @@ async fn main() {
 
         graph.draw();
 
-        if is_key_pressed(KeyCode::F3) {
-            show_debug = !show_debug;
-        }
         if is_key_pressed(KeyCode::F1) {
             pause = !pause;
         }
+        if is_key_pressed(KeyCode::F2) {
+            // Dump data to csv
+            if let Ok(mut file) = OpenOptions::new()
+                .write(true)
+                .append(false)
+                .truncate(true)
+                .create(true)
+                .open("data.csv")
+            {
+                let mut x = 0.;
+                for p in &graph.points {
+                    x += p.time_since_last;
+                    let _ = file.write_all(format!("{x},{}\n", p.y).as_bytes());
+                }
+                let _ = file.flush();
+
+                let now = Local::now();
+                let date_string = format!(
+                    "{}-{}-{}-{}-{}-{}-{}",
+                    now.year(),
+                    now.month(),
+                    now.day(),
+                    now.hour(),
+                    now.minute(),
+                    now.second(),
+                    now.timestamp_subsec_millis()
+                );
+
+                if let Ok(out_file) = OpenOptions::new()
+                    .write(true)
+                    .append(false)
+                    .truncate(true)
+                    .create(true)
+                    .open(format!("dump-{date_string}.png"))
+                {
+                    let _ = Command::new("gnuplot")
+                        .stdin(file)
+                        .arg("template.gnuplot")
+                        .stdout(out_file)
+                        .spawn();
+                }
+            }
+        }
+        if is_key_pressed(KeyCode::F3) {
+            show_debug = !show_debug;
+        }
 
         let (_, my) = mouse_wheel();
         graph.px_per_s += 10. * my;

template.gnuplot

@@ -0,0 +1,17 @@
+datafile = 'data.csv'
+set datafile separator ','
+
+set title 'Data Dump'
+set key autotitle columnhead
+set xlabel "Time (ms)"
+set ylabel "Value"
+
+set style line 1 linewidth 2 linecolor 1 pointtype 7 pointsize 1.5
+
+set autoscale
+set grid
+
+set term png size 1280, 720
+plot datafile using 1:2 with linespoints linestyle 1 
+# plot datafile using 1:2 with linespoints linestyle 1, datafile using 1:3, etc...
+replot