fix: angle correction

add some point at begin and endm beacause angles wasn't calculate

copyme.settings.toml

@@ -35,3 +35,7 @@ Until = 48
 [[transformers]]
 [transformers.intensity]
 
+
+[[transformers]]
+[transformers.angle_correction]
+coef = 2000.0

examples/populate_redis.rs

@@ -1,7 +1,6 @@
 ///
 /// $ cargo run --example populate_redis
 ///
-
 use redis::{
     //RedisResult,
     Client,
@@ -14,7 +13,10 @@ fn do_something() -> redis::RedisResult<()> {
     let mut con: Connection = client.get_connection()?;
 
     let _ = con.set("/clientkey", "/pl/0/")?;
-	let _ = con.set("/EDH/0", "[[1.0, 0.0, 0.0],\n [ 0.0, 1.0, 0.0],\n [ 0.0, 0.0, 1.0]]")?;
+    let _ = con.set(
+        "/EDH/0",
+        "[[1.0, 0.0, 0.0],\n [ 0.0, 1.0, 0.0],\n [ 0.0, 0.0, 1.0]]",
+    )?;
     let _ = con.set("/kpps/0", "5000")?;
     let _ = con.set("/intensity/0", "255")?;
     Ok(())

examples/simple_client.rs

@@ -1,7 +1,6 @@
 ///
 /// $ cargo run --example simple_client
 ///
-
 use redis::{
     //RedisResult,
     Client,
@@ -28,11 +27,7 @@ fn do_something() -> redis::RedisResult<()> {
 
             let x = a.cos() * r;
             let y = a.sin() * r;
-	    let col = if i % 8 < 4 {
-		0x000000ff
-	    } else {
-		0x00ff0000
-	    };
+            let col = if i % 8 < 4 { 0x000000ff } else { 0x00ff0000 };
             v.push((x, y, col));
         }
         // println!("{:?}", v);

src/conf.rs

@@ -1,7 +1,7 @@
-use config::Config;
-use serde::{Serialize,Deserialize};
 use crate::errors::{LJError, LJResult};
 use crate::transformer;
+use config::Config;
+use serde::{Deserialize, Serialize};
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct Conf {
@@ -10,7 +10,7 @@ pub struct Conf {
     pub redis_url: String,
     pub dac: DacFamily,
     #[serde(default)]
-    pub transformers: Vec<TransformConf>
+    pub transformers: Vec<TransformConf>,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
@@ -25,12 +25,12 @@ pub enum DacFamily {
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct HeliosConf {
-    pub id: u8
+    pub id: u8,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct EtherDreamConf {
-    pub ip: String
+    pub ip: String,
 }
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
@@ -48,20 +48,28 @@ pub enum TransformConf {
     #[serde(rename = "grid")]
     Grid(transformer::Grid),
     #[serde(rename = "homography")]
-    Homography(transformer::Homography)
+    Homography(transformer::Homography),
+    #[serde(rename = "angle_correction")]
+    AngleOptimisation(transformer::AngleOptimisation),
 }
 
-
 impl Conf {
     pub fn new(path: &str) -> LJResult<Conf> {
         let settings = Config::builder()
             .add_source(config::File::with_name(path))
             .build()?;
 
+        dbg!("path:", path);
+        //println!("plop");
+        dbg!(settings.clone());
         let conf: Conf = settings.try_deserialize().map_err(LJError::Config)?;
+
+        //println!("plum");
         Ok(conf)
     }
 
+    //println!("plop");
+
     pub fn get_transformers(&self) -> Vec<Box<dyn transformer::Transformers>> {
         let mut v = vec![];
         for t in &self.transformers {
@@ -73,6 +81,7 @@ impl Conf {
                 TransformConf::FlipV(r) => Box::new(*r),
                 TransformConf::Grid(r) => Box::new(*r),
                 TransformConf::Homography(r) => Box::new(*r),
+                TransformConf::AngleOptimisation(r) => Box::new(*r),
             };
             v.push(t);
         }
@@ -87,10 +96,12 @@ impl Conf {
             redis_url: "redis://127.0.0.1:6379/".to_string(),
             dac: DacFamily::Helios(HeliosConf { id: 0 }),
             transformers: vec![
-		TransformConf::Translate(transformer::Translate { x: 2000.0,
-								  y: 2000.0 } ),
-		TransformConf::Replicate(transformer::Replicate::Until(48))
-	    ]
+                TransformConf::Translate(transformer::Translate {
+                    x: 2000.0,
+                    y: 2000.0,
+                }),
+                TransformConf::Replicate(transformer::Replicate::Until(48)),
+            ],
         };
         let s = toml::to_string(&conf).unwrap();
         println!("{}", s);

src/device.rs

@@ -1,15 +1,15 @@
-mod helios;
 mod dummy;
 mod etherdream;
+mod helios;
 
-use std::fmt;
 use crate::conf::{Conf, DacFamily /*EtherDreamConf, HeliosConf*/};
-use crate::device::helios::HeliosDevice;
 use crate::device::dummy::DummyDevice;
+use crate::device::etherdream::EtherdreamDevice;
+use crate::device::helios::HeliosDevice;
 use crate::errors::LJResult;
 use crate::point::Point;
 use serde::Serialize;
-use crate::device::etherdream::EtherdreamDevice;
+use std::fmt;
 
 /*
 self.protocol_version,
@@ -53,11 +53,7 @@ pub struct Status {
 
 pub trait Device {
     fn status(&mut self) -> Status;
-	fn draw(
-		&mut self,
-		frame: Vec<Point>,
-		speed: u32,
-	) -> LJResult<()>;
+    fn draw(&mut self, frame: Vec<Point>, speed: u32) -> LJResult<()>;
     fn stop(&mut self) -> LJResult<()>;
     fn grid(&mut self) -> Vec<Point>;
 }
@@ -66,7 +62,7 @@ pub fn device_factory(config: &Conf) -> LJResult<Box<dyn Device>> {
     let device: Box<dyn Device> = match &config.dac {
         DacFamily::Helios(conf) => Box::new(HeliosDevice::new(conf)?),
         DacFamily::Etherdream(conf) => Box::new(EtherdreamDevice::new(conf)?),
-		DacFamily::Dummy => Box::new(DummyDevice::new()?)
+        DacFamily::Dummy => Box::new(DummyDevice::new()?),
     };
     Ok(device)
 }

src/device/dummy.rs

@@ -1,15 +1,17 @@
-use crate::device::{Device, Status, PlaybackState};
+use crate::device::{Device, PlaybackState, Status};
 use crate::errors::LJResult;
 use crate::point::{Color, Point};
 use log::debug;
 
 pub struct DummyDevice {
-    state: PlaybackState
+    state: PlaybackState,
 }
 
 impl DummyDevice {
     pub fn new() -> LJResult<Self> {
-	    Ok(Self { state: PlaybackState::IDLE })
+        Ok(Self {
+            state: PlaybackState::IDLE,
+        })
     }
 }
 
@@ -20,14 +22,11 @@ impl Device for DummyDevice {
             properties: vec!["foo".to_string()],
             playback_state: self.state,
             capacity: 0,
-			lack: "lack".to_string()
+            lack: "lack".to_string(),
         }
     }
 
-	fn draw(&mut self,
-	        line: Vec<Point>,
-	        speed: u32,
-	) -> LJResult<()> {
+    fn draw(&mut self, line: Vec<Point>, speed: u32) -> LJResult<()> {
         debug!("Draw Line at speed {speed} : {:?}", line);
         Ok(())
     }
@@ -36,8 +35,10 @@ impl Device for DummyDevice {
         Ok(())
     }
     fn grid(&mut self) -> Vec<Point> {
-		vec!(
-			Point{ x: 0 as f32, y: 0 as f32, color:Color{ r: 0, g: 0, b: 0 }}
-		)
+        vec![Point {
+            x: 0 as f32,
+            y: 0 as f32,
+            color: Color { r: 0, g: 0, b: 0 },
+        }]
     }
 }

src/device/etherdream.rs

@@ -1,10 +1,10 @@
-use std::time;
-use std::net::SocketAddr;
 use ether_dream::dac::stream::connect;
 use ether_dream::dac::Stream;
+use std::net::SocketAddr;
+use std::time;
 
 use crate::conf::EtherDreamConf;
-use crate::device::{Device, Status, PlaybackState};
+use crate::device::{Device, PlaybackState, Status};
 use crate::errors::{LJError, LJResult};
 use crate::point::{Color, Point};
 use ether_dream::protocol::{DacBroadcast, DacStatus};
@@ -41,27 +41,27 @@ impl EtherdreamDevice {
         dac_broadcast.set_timeout(Some(time::Duration::new(10, 0)))?;
         info!("Attempting to get DAC broadcast...");
         let broadcast = dac_broadcast
-			.filter_map(|result| {
-				match result {
+            .filter_map(|result| match result {
                 Err(err) => {
                     warn!("Failed to find a valid DAC via broadcast. Error: {:?}", err);
                     info!("Retrying...");
                     None
-					},
+                }
                 Ok((dac, source_addr)) => {
-						if source_addr.is_ipv6() { return None; }
-						if &source_addr.ip().to_string() != ip { return None; }
+                    if source_addr.is_ipv6() {
+                        return None;
+                    }
+                    if &source_addr.ip().to_string() != ip {
+                        return None;
+                    }
                     info!("Valid broadcast");
                     Some(Ok((dac, source_addr)))
                 }
-				}
             })
             .next()
             .expect("Failed to receive broadcast.");
         match broadcast {
-			Err(err) => {
-				Err(Box::new(LJError::EtherdreamConnectError(err)))
-			}
+            Err(err) => Err(Box::new(LJError::EtherdreamConnectError(err))),
             Ok((dac, source_addr)) => {
                 let stream = EtherdreamDevice::get_tcp_stream(&dac, &source_addr)?;
                 Ok((dac, source_addr, stream))
@@ -90,7 +90,6 @@ impl EtherdreamDevice {
         Ok(stream)
     }
 
-
     pub fn check_tcp_stream(&mut self) -> LJResult<()> {
         // todo Reinit stream if needed
         // self.stream = EtherdreamDevice::get_tcp_stream(&self.dac, &self.source_address)?
@@ -112,7 +111,7 @@ impl Device for EtherdreamDevice {
             DacStatus::PLAYBACK_IDLE => PlaybackState::IDLE,
             DacStatus::PLAYBACK_PREPARED => PlaybackState::PREPARE,
             DacStatus::PLAYBACK_PLAYING => PlaybackState::PLAYING,
-			_ => PlaybackState::UNKNOWN
+            _ => PlaybackState::UNKNOWN,
         };
 
         Status {
@@ -124,10 +123,7 @@ impl Device for EtherdreamDevice {
         }
     }
 
-	fn draw(&mut self,
-	        line: Vec<Point>,
-	        _speed: u32,
-	) -> LJResult<()> {
+    fn draw(&mut self, line: Vec<Point>, _speed: u32) -> LJResult<()> {
         let n_points = self.points_to_generate();
         self.stream
             .queue_commands()
@@ -146,8 +142,14 @@ impl Device for EtherdreamDevice {
     }
 
     fn grid(&mut self) -> Vec<Point> {
-		vec!(
-			Point { x: 0.0, y: 0.0, color: Color { r: 255, g: 255, b: 255 } }
-		)
+        vec![Point {
+            x: 0.0,
+            y: 0.0,
+            color: Color {
+                r: 255,
+                g: 255,
+                b: 255,
+            },
+        }]
     }
 }

src/device/helios.rs

@@ -1,8 +1,8 @@
-///
-/// Configure udev:
-/// https://github.com/Grix/helios_dac/blob/master/docs/udev_rules_for_linux.md
-///
-use helios_dac::{NativeHeliosDac, NativeHeliosDacController};
+use crate::conf::HeliosConf;
+use crate::device::{Device, PlaybackState, Status};
+use crate::errors::{LJError, LJResult};
+use crate::point::{Color, Point};
+use chrono::Utc;
 use helios_dac::{
     // Coordinate,
     // Color,
@@ -10,11 +10,11 @@ use helios_dac::{
     Frame,
     // Point as HeliosPoint,
 };
-use crate::conf::HeliosConf;
-use crate::device::{Device, Status, PlaybackState};
-use crate::errors::{LJError, LJResult};
-use crate::point::{Color, Point};
-use chrono::Utc;
+///
+/// Configure udev:
+/// https://github.com/Grix/helios_dac/blob/master/docs/udev_rules_for_linux.md
+///
+use helios_dac::{NativeHeliosDac, NativeHeliosDacController};
 
 pub struct HeliosDevice {
     pub conf: HeliosConf,
@@ -57,10 +57,7 @@ impl Device for HeliosDevice {
         }
     }
 
-	fn draw(&mut self,
-	        line: Vec<Point>,
-	        speed: u32,
-	) -> LJResult<()> {
+    fn draw(&mut self, line: Vec<Point>, speed: u32) -> LJResult<()> {
         self.state = PlaybackState::IDLE;
         while let Ok(DeviceStatus::NotReady) = self.dac.status() {}
         self.state = PlaybackState::PLAYING;
@@ -83,21 +80,73 @@ impl Device for HeliosDevice {
         let dim_mid = 2047 as f32;
         let dim_max = 4095 as f32;
         let col_min = Color { r: 0, g: 0, b: 0 };
-		let col_max = Color { r: 255, g: 255, b: 255 };
+        let col_max = Color {
+            r: 255,
+            g: 255,
+            b: 255,
+        };
 
         vec![
-			Point { x: dim_min, y: dim_max, color: col_min },
-			Point { x: dim_min, y: dim_max, color: col_max },
-			Point { x: dim_max, y: dim_max, color: col_max },
-			Point { x: dim_max, y: dim_min, color: col_max },
-			Point { x: dim_min, y: dim_min, color: col_max },
-			Point { x: dim_min, y: dim_min, color: col_min },
-			Point { x: dim_min, y: dim_mid, color: col_min },
-			Point { x: dim_min, y: dim_mid, color: col_max },
-			Point { x: dim_mid, y: dim_mid, color: col_max },
-			Point { x: dim_mid, y: dim_min, color: col_max },
-			Point { x: dim_min, y: dim_min, color: col_max },
-			Point { x: dim_min, y: dim_min, color: col_min },
+            Point {
+                x: dim_min,
+                y: dim_max,
+                color: col_min,
+            },
+            Point {
+                x: dim_min,
+                y: dim_max,
+                color: col_max,
+            },
+            Point {
+                x: dim_max,
+                y: dim_max,
+                color: col_max,
+            },
+            Point {
+                x: dim_max,
+                y: dim_min,
+                color: col_max,
+            },
+            Point {
+                x: dim_min,
+                y: dim_min,
+                color: col_max,
+            },
+            Point {
+                x: dim_min,
+                y: dim_min,
+                color: col_min,
+            },
+            Point {
+                x: dim_min,
+                y: dim_mid,
+                color: col_min,
+            },
+            Point {
+                x: dim_min,
+                y: dim_mid,
+                color: col_max,
+            },
+            Point {
+                x: dim_mid,
+                y: dim_mid,
+                color: col_max,
+            },
+            Point {
+                x: dim_mid,
+                y: dim_min,
+                color: col_max,
+            },
+            Point {
+                x: dim_min,
+                y: dim_min,
+                color: col_max,
+            },
+            Point {
+                x: dim_min,
+                y: dim_min,
+                color: col_min,
+            },
         ]
     }
 }

src/errors.rs

@@ -1,7 +1,7 @@
+use config::ConfigError;
+use redis::RedisError;
 use std::error::Error;
 use std::{fmt, io};
-use redis::RedisError;
-use config::ConfigError;
 
 pub type LJResult<T> = Result<T, Box<dyn std::error::Error>>;
 
@@ -44,7 +44,7 @@ impl Error for LJError {
 
         match self {
             RedisConnect(err) => Some(err),
-			_ => None
+            _ => None,
         }
     }
 }

src/lib.rs

@@ -1,7 +1,7 @@
-pub mod redis_ctrl;
 pub mod conf;
-pub mod errors;
 pub mod device;
+pub mod errors;
 pub mod point;
+pub mod redis_ctrl;
 pub mod transformer;
 pub mod worldstate;

src/main.rs

@@ -1,25 +1,25 @@
+mod conf;
+mod device;
+mod errors;
+mod point;
 ///
 /// Configure udev:
 /// https://github.com/Grix/helios_dac/blob/master/docs/udev_rules_for_linux.md
 ///
 mod redis_ctrl;
-mod conf;
-mod errors;
-mod point;
 mod transformer;
-mod device;
 mod worldstate;
 
+use conf::Conf;
 use device::device_factory;
+use env_logger::Builder;
+use errors::LJResult;
+use log::{/* warn, */ error, info, LevelFilter};
+use point::{Color, Point};
+use redis_ctrl::{Order, RedisCtrl};
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
-use redis_ctrl::{RedisCtrl, Order};
-use conf::Conf;
-use errors::LJResult;
-use point::{Point, Color};
 use transformer::Transformers;
-use log::{LevelFilter, info, /* warn, */ error};
-use env_logger::Builder;
 use worldstate::WorldState;
 
 const DEFAULT_CONF_FILE: &str = "settings.toml";
@@ -33,12 +33,11 @@ pub fn main() {
     }
 }
 
-
 fn run_all() -> LJResult<()> {
     // Setup configuration file and set up logs
-	let filename = std::env::args().nth(1).unwrap_or_else(|| {
-		DEFAULT_CONF_FILE.to_string()
-	});
+    let filename = std::env::args()
+        .nth(1)
+        .unwrap_or_else(|| DEFAULT_CONF_FILE.to_string());
 
     let config = Conf::new(&filename);
     init_logging(&config);
@@ -52,6 +51,7 @@ fn run_all() -> LJResult<()> {
 
     let mut world_state = rs.init_world_state().unwrap();
     info!("WorldState: {:?}", world_state);
+    dbg!("worldstate.kpps: {}", world_state.kpps);
 
     // Setup handler for interrupt Signals
     let running = Arc::new(AtomicBool::new(true));
@@ -76,7 +76,6 @@ fn run_all() -> LJResult<()> {
 
         let order = rs.get_order(config.laser_id)?;
 
-
         match order {
             Order::Draw | Order::Black | Order::Grid => {
                 // 0 : Draw Normal point list
@@ -84,19 +83,13 @@ fn run_all() -> LJResult<()> {
                 // 3 : Draw GRID point list
                 world_state.draw_black = order == Order::Black;
                 world_state.draw_grid = order == Order::Grid;
-				let frame = get_next_frame(
-					&config,
-					&transformers,
-					&mut rs,
-					&world_state,
-				)?;
+                let frame = get_next_frame(&config, &transformers, &mut rs, &world_state)?;
                 // For now, draw all the time
                 tracer.draw(frame, world_state.kpps)?;
             }
             Order::Intensity => {
                 // 6 : Max Intensity Change     = reread redis key /intensity
-				world_state.intensity = rs.get_int("intensity")?
-					.try_into()?;
+                world_state.intensity = rs.get_int("intensity")?.try_into()?;
             }
             Order::Edh => {
                 // 1 : Get the new EDH          = reread redis key /EDH/lasernumber
@@ -105,10 +98,11 @@ fn run_all() -> LJResult<()> {
             Order::Kpps => {
                 // 7 : kpps change              = reread redis key /kpps
                 world_state.kpps = rs.get_int("kpps")?;
+                //dbg!(world_state.kpps);
             }
             Order::ClientKey => {
                 world_state.client_key = rs.get_client_key()?;
-			},
+            }
             // Order::ColorBalance => {},
             _ => {
                 // 4 : Resampler Change (longs and shorts lsteps)
@@ -129,9 +123,7 @@ fn init_logging(config: &LJResult<Conf>) {
     if let Ok(ref config) = config {
         if config.debug {
             let mut builder = Builder::from_default_env();
-			builder
-				.filter(None, LevelFilter::Info)
-				.init();
+            builder.filter(None, LevelFilter::Info).init();
             info!("Debug mode enabled from configuration file");
             return;
         }
@@ -146,9 +138,7 @@ fn get_next_frame(
     rs: &mut RedisCtrl,
     world_state: &WorldState,
 ) -> LJResult<Vec<Point>> {
-	let format_key = format!("{}{}",
-	                         world_state.client_key,
-	                         config.laser_id);
+    let format_key = format!("{}{}", world_state.client_key, config.laser_id);
 
     // Handle the grid case
 
@@ -156,20 +146,20 @@ fn get_next_frame(
         world_state.grid.clone()
     } else {
         let redis_line = rs.get_line(&format_key)?;
-		redis_line.into_iter()
-			.map(|tpl| tpl.into())
-			.collect()
+        redis_line.into_iter().map(|tpl| tpl.into()).collect()
     };
 
     for transformer in transformers {
         line = transformer.apply(&line, world_state);
     }
 
+
     info!("Draw Black -> {}", world_state.draw_black);
     info!("Draw Grid -> {}", world_state.draw_grid);
 
     // LIMITER and BLACK
-	line = line.into_iter()
+    line = line
+        .into_iter()
         .map(|p| {
             let color = if world_state.draw_black {
                 Color { r: 0, g: 0, b: 0 }
@@ -180,14 +170,10 @@ fn get_next_frame(
                     b: p.color.b.min(world_state.intensity),
                 }
             };
-			Point {
-				color,
-				..p
-			}
+            Point { color, ..p }
         })
         .collect();
 
     //info!("Line: {:?}", line);
     Ok(line)
 }
-

src/point.rs

@@ -14,6 +14,30 @@ pub struct Color {
     pub b: u8,
 }
 
+impl Point {
+    pub fn diff(p1: &Self, p2: &Self) -> Self {
+        Point {
+            x: p1.x - p2.x,
+            y: p1.y - p2.y,
+            color: Color { r: 0, g: 0, b: 0 },
+        }
+    }
+
+    pub fn normalize(&mut self) -> Self {
+        let length = (self.x * self.x + self.y * self.y).sqrt();
+        self.x = self.x / length;
+        self.y = self.y / length;
+        *self
+    }
+
+    pub fn cross(&self, pt: &Self) -> f32 {
+        self.x * pt.x + self.y * pt.y
+    }
+}
+
+// normalaize
+// diff
+
 impl From<Color> for u32 {
     fn from(value: Color) -> Self {
         let r = value.r as u32;
@@ -28,7 +52,11 @@ impl From<(f32, f32, u32)> for Point {
         let r = (color >> 16) as u8;
         let g = ((color >> 8) & 255) as u8;
         let b = (color & 255) as u8;
-		Point { x, y, color: Color { r, g, b } }
+        Point {
+            x,
+            y,
+            color: Color { r, g, b },
+        }
     }
 }
 

src/redis_ctrl.rs

@@ -1,8 +1,8 @@
-use redis::{Client, Commands, Connection};
-use ron::de::from_str;
 use crate::device::Status;
 use crate::errors::{LJError, LJResult};
 use crate::worldstate::{WorldState, EDH};
+use redis::{Client, Commands, Connection};
+use ron::de::from_str;
 // use log::info;
 
 #[repr(u8)]
@@ -40,7 +40,7 @@ impl TryFrom<u8> for Order {
             6 => Intensity,
             7 => Kpps,
             8 => ColorBalance,
-			_ => unreachable!()
+            _ => unreachable!(),
         })
     }
 }
@@ -55,11 +55,13 @@ pub struct RedisCtrl {
 
 impl RedisCtrl {
     pub fn new(url: &str, laser_id: &u8) -> LJResult<Self> {
-		let client = Client::open(url)
-			.map_err(LJError::RedisConnect)?;
-		let connection = client.get_connection()
-			.map_err(LJError::RedisConnect)?;
-		Ok(RedisCtrl { client, connection, laser_id: *laser_id })
+        let client = Client::open(url).map_err(LJError::RedisConnect)?;
+        let connection = client.get_connection().map_err(LJError::RedisConnect)?;
+        Ok(RedisCtrl {
+            client,
+            connection,
+            laser_id: *laser_id,
+        })
     }
 
     pub fn get_line(&mut self, key: &str) -> LJResult<Line> {

src/transformer.rs

@@ -1,28 +1,26 @@
 //pub mod common;
-mod translate;
-mod replicate;
-mod rotate;
+mod angle_optimisation;
 mod flip_horizontal;
 mod flip_vertical;
 mod grid;
 mod homography;
+mod replicate;
+mod rotate;
+mod translate;
 
 use crate::point::Point;
 use crate::worldstate::WorldState;
 
 // re-export transformers to be abe to use it directly from transformer::
-pub use translate::Translate;
-pub use replicate::Replicate;
-pub use rotate::Rotate;
+pub use self::homography::Homography;
+pub use angle_optimisation::AngleOptimisation;
 pub use flip_horizontal::FlipHorizontal;
 pub use flip_vertical::FlipVertical;
 pub use grid::Grid;
-pub use self::homography::Homography;
+pub use replicate::Replicate;
+pub use rotate::Rotate;
+pub use translate::Translate;
 
 pub trait Transformers {
-    fn apply(
-	&self,
-	point_list: &[Point],
-	world_state: &WorldState
-    ) -> Vec<Point>;
+    fn apply(&self, point_list: &[Point], world_state: &WorldState) -> Vec<Point>;
 }

src/transformer/angle_optimisation.rs

@@ -0,0 +1,129 @@
+use crate::point::{Color, Point};
+use crate::transformer::Transformers;
+use crate::worldstate::WorldState;
+
+use serde::{Deserialize, Serialize};
+use std::f64::consts::PI;
+//use std::cmp::min;
+
+/// Angle Optimisation
+
+#[derive(Serialize, Deserialize, Debug, Clone, Copy)]
+pub struct AngleOptimisation {
+    coef: f64,
+    //pps: u16,
+}
+
+fn color_not_zero(p1: &Point, p2: &Point, p3: &Point) -> bool {
+    let c0 = Color { r: 0, g: 0, b: 0 };
+    if p1.color == c0 || p2.color == c0 || p3.color == c0 {
+        false
+    } else {
+        true
+    }
+}
+
+fn pos_different(p1: &Point, p2: &Point) -> bool {
+    if p1.x == p2.x && p1.y == p2.y {
+        false
+    } else {
+        true
+    }
+}
+
+/*
+ * Le temps a attendre a un angle est toujours le meme, peu importe les kpps.
+ * Donc le nombre de point a rajouter est proportionelle a la vitesse du laser.
+ *
+ *  kpps /
+ * */
+
+fn color_same(p1: &Point, p2: &Point) -> bool {
+    if p1.color.r == p2.color.r && p1.color.g == p2.color.g && p1.color.b == p2.color.b {
+        true
+    } else {
+        false
+    }
+}
+
+// quand on rajoute un point, on le rejoute ou et avec quelle couleur
+//  -> j'ai l'impression qu'on le rajoute surtout a l'arriver
+
+fn get_prev(pl: &[Point], id: usize) -> (Option<&Point>, usize) {
+    for i in (0..id).rev() {
+        if pos_different(&pl[id], &pl[i]) {
+            return (Some(&pl[i]), id - i);
+        }
+    }
+    (None, id - 0)
+}
+
+fn get_next(pl: &[Point], id: usize) -> (Option<&Point>, usize) {
+    for i in id..(pl.len() - 1) {
+        if pos_different(&pl[id], &pl[i]) {
+            return (Some(&pl[i]), i - id);
+        }
+    }
+    (None, pl.len() - id - 1)
+}
+
+fn max(v1: f64, v2: f64) -> f64 {
+    if v1 > v2 {
+        v1
+    } else {
+        v2
+    }
+}
+
+impl Transformers for AngleOptimisation {
+    fn apply(&self, pl: &[Point], _ws: &WorldState) -> Vec<Point> {
+        let c0 = Color { r: 0, g: 0, b: 0 };
+        let mut v = vec![];
+
+        let to_add_max = _ws.kpps as f64 / self.coef; // for 180 deg
+        let to_add_min = max(to_add_max / 1.5, 2.); // for 180 deg
+
+        let mut first_blanc = pl[0].clone();
+        first_blanc.color = Color{r:0, g:0, b:0};
+        for _ in 0..(to_add_max as u32) {
+            v.push(first_blanc); // push first
+        }
+        v.push(pl[0]);
+        for i in 1..(pl.len() - 1) {
+            let node = &pl[i];
+            if let ((Some(prev), dist_prev), (Some(next), dist_next)) =
+                (get_prev(pl, i), get_next(pl, i))
+            {
+                let d1 = Point::diff(node, prev).normalize();
+                let d2 = Point::diff(next, node).normalize();
+                let angle = (d1.cross(&d2) as f64).acos();
+                let to_add = ((to_add_max - to_add_min) * (angle / PI) + to_add_min) as usize;
+                println!("\nangle: {}", (angle / PI * 180.));
+                dbg!(to_add);
+                dbg!(to_add_max);
+                for _ in 0..to_add {
+                    v.push(*node);
+                }
+            } else {
+                v.push(*node);
+            };
+            //v.push(*node); // push node
+        }
+        for _ in 0..(to_add_max as u32) {
+            v.push(pl[pl.len() - 2]); // push last
+        }
+        for _ in 0..(to_add_max as u32) {
+            v.push(pl[pl.len() - 1]); // push last
+        }
+        println!("\tbefore: {}\tafter: {}", pl.len(), v.len());
+
+        v
+    }
+}
+
+/*
+ *  |\
+ *  | \
+ *  |  \
+ *  |  |
+ * */

src/transformer/flip_horizontal.rs

@@ -1,8 +1,8 @@
-use crate::transformer::Transformers;
 use crate::point::Point;
+use crate::transformer::Transformers;
 use crate::worldstate::WorldState;
 
-use serde::{Serialize,Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// Flip Horizontal
 
@@ -13,12 +13,15 @@ pub struct FlipHorizontal {
 
 impl Transformers for FlipHorizontal {
     fn apply(&self, point_list: &[Point], _ws: &WorldState) -> Vec<Point> {
-    point_list.iter()
+        point_list
+            .iter()
             .map(|pt| {
                 let dx = pt.x - self.x;
-            Point { x: dx - 2. * dx,
+                Point {
+                    x: dx - 2. * dx,
                     ..*pt
                 }
-        }).collect()
+            })
+            .collect()
     }
 }

src/transformer/flip_vertical.rs

@@ -1,8 +1,8 @@
-use crate::transformer::Transformers;
 use crate::point::Point;
+use crate::transformer::Transformers;
 use crate::worldstate::WorldState;
 
-use serde::{Serialize,Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// Flip Vertical
 
@@ -13,12 +13,15 @@ pub struct FlipVertical {
 
 impl Transformers for FlipVertical {
     fn apply(&self, point_list: &[Point], _ws: &WorldState) -> Vec<Point> {
-    point_list.iter()
+        point_list
+            .iter()
             .map(|pt| {
                 let dy = pt.y - self.y;
-            Point { y: dy - 2. * dy,
+                Point {
+                    y: dy - 2. * dy,
                     ..*pt
                 }
-        }).collect()
+            })
+            .collect()
     }
 }

src/transformer/grid.rs

@@ -1,47 +1,38 @@
-use crate::transformer::Transformers;
 use crate::point::Point;
+use crate::transformer::Transformers;
 use crate::worldstate::WorldState;
 
-use serde::{Serialize,Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// Translate
 
 #[derive(Serialize, Deserialize, Debug, Clone, Copy)]
 pub struct Grid {
     width: f32,
-    height: f32
+    height: f32,
 }
 
 fn square_box(size: f32, color: u32) -> Vec<(f32, f32, u32)> {
     vec![
         (-size, -size, 0),
         (-size, -size, color),
-
         (0.0, -size, color),
         (0.0, -size, color),
-	
         (size, -size, color),
         (size, -size, color),
-
         (size, 0.0, color),
         (size, 0.0, color),
-
         (size, size, color),
         (size, size, color),
-
         (0.0, size, color),
         (0.0, size, color),
-
         (-size, size, color),
         (-size, size, color),
-
         (-size, 0.0, color),
         (-size, 0.0, color),
-
         (-size, -size, color),
         (-size, -size, color),
-
-	(-size, -size, 0)
+        (-size, -size, 0),
     ]
 }
 
@@ -51,8 +42,7 @@ impl Transformers for Grid {
         let mut line = square_box(2000.0, 255);
         line.append(&mut sq1);
 
-	let line: Vec<Point> = line.into_iter()
-	    .map(|tpl| tpl.into()).collect();
+        let line: Vec<Point> = line.into_iter().map(|tpl| tpl.into()).collect();
         line
     }
 }

src/transformer/homography.rs

@@ -1,7 +1,7 @@
-use crate::transformer::Transformers;
 use crate::point::Point;
+use crate::transformer::Transformers;
 use crate::worldstate::{WorldState, EDH};
-use serde::{Serialize,Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// Homography
 
@@ -12,9 +12,7 @@ impl Transformers for Homography {
     fn apply(&self, point_list: &[Point], ws: &WorldState) -> Vec<Point> {
         let edh: &EDH = &ws.edh;
 
-	point_list.iter()
-	    .map(| point | edh.apply(point))
-	    .collect()
+        point_list.iter().map(|point| edh.apply(point)).collect()
     }
 }
 
@@ -24,41 +22,67 @@ mod tests {
 
     #[test]
     fn identity_matrix_let_point_unchanged() {
-	let p0 = Point { x: -1500.0, y: 1500.0, ..Point::default() };
+        let p0 = Point {
+            x: -1500.0,
+            y: 1500.0,
+            ..Point::default()
+        };
 
         let edh = EDH::new(vec![
             vec![1.0, 0.0, 0.0],
             vec![0.0, 1.0, 0.0],
-	    vec![ 0.0, 0.0, 1.0 ]
-	]).unwrap();
+            vec![0.0, 0.0, 1.0],
+        ])
+        .unwrap();
 
-	let ws = WorldState { edh : edh, ..WorldState::default() };
+        let ws = WorldState {
+            edh: edh,
+            ..WorldState::default()
+        };
 
         let homography = Homography {};
         let result = homography.apply(&[p0], &ws);
 
-	assert_eq!(result, vec![Point { x: -1500.0,
+        assert_eq!(
+            result,
+            vec![Point {
+                x: -1500.0,
                 y: 1500.0,
-					..Point::default() }]);
+                ..Point::default()
+            }]
+        );
     }
 
     #[test]
     fn rotation_matrix_rotate_the_point() {
-	let p0 = Point { x: -1500.0, y: 1500.0, ..Point::default() };
+        let p0 = Point {
+            x: -1500.0,
+            y: 1500.0,
+            ..Point::default()
+        };
 
         let edh = EDH::new(vec![
             vec![1.24107321e-03, 1.00500127e-03, 7.15439347e-01],
             vec![-9.93223912e-04, 1.22652939e-03, -6.98671238e-01],
-	    vec![ 1.06017142e-17,-4.69459541e-17, 3.32700590e-05]
-	]).unwrap();
+            vec![1.06017142e-17, -4.69459541e-17, 3.32700590e-05],
+        ])
+        .unwrap();
 
-	let ws = WorldState { edh : edh, ..WorldState::default() };
+        let ws = WorldState {
+            edh: edh,
+            ..WorldState::default()
+        };
 
         let homography = Homography {};
         let result = homography.apply(&[p0], &ws);
 
-	assert_eq!(result, vec![Point { x: 10860.557,
+        assert_eq!(
+            result,
+            vec![Point {
+                x: 10860.557,
                 y: 79078.87,
-					..Point::default() }]);
+                ..Point::default()
+            }]
+        );
     }
 }

src/transformer/replicate.rs

@@ -1,8 +1,8 @@
+use crate::point::{Color, Point};
 use crate::transformer::Transformers;
-use crate::point::Point;
 use crate::worldstate::WorldState;
 
-use serde::{Serialize,Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// Replicate
 
@@ -10,18 +10,34 @@ use serde::{Serialize,Deserialize};
 #[derive(Serialize, Deserialize, Debug, Clone, Copy)]
 pub enum Replicate {
     Until(usize),
-    Times(usize)
+    Times(usize),
 }
 
 impl Transformers for Replicate {
     fn apply(&self, point_list: &[Point], _ws: &WorldState) -> Vec<Point> {
         let mut point_list2 = vec![];
+
         match self {
             Replicate::Until(n) => {
                 while point_list2.len() < *n {
+                    if point_list.len() == 0 {
+                        // to prevent infinit loop in case of empty frame
+                        point_list2.append(
+                            &mut vec![
+                                Point {
+                                    x: 0.,
+                                    y: 0.,
+                                    color: Color { r: 0, g: 0, b: 0 }
+                                };
+                                *n
+                            ]
+                            .to_vec(),
+                        );
+                    } else {
                         point_list2.append(&mut point_list.to_vec());
                     }
-	    },
+                }
+            }
             Replicate::Times(n) => {
                 for _ in 0..*n {
                     point_list2.append(&mut point_list.to_vec());
@@ -31,4 +47,3 @@ impl Transformers for Replicate {
         point_list2
     }
 }
-

src/transformer/rotate.rs

@@ -1,8 +1,8 @@
-use crate::transformer::Transformers;
 use crate::point::Point;
+use crate::transformer::Transformers;
 use crate::worldstate::WorldState;
 
-use serde::{Serialize,Deserialize};
+use serde::{Deserialize, Serialize};
 //use std::f32::consts::PI;
 
 /// Rotate
@@ -12,12 +12,12 @@ pub struct Rotate {
     cx: f32,
     cy: f32,
     angle: f32,
-
 }
 
 impl Transformers for Rotate {
     fn apply(&self, point_list: &[Point], _ws: &WorldState) -> Vec<Point> {
-    point_list.iter()
+        point_list
+            .iter()
             .map(|pt| {
                 let dx = pt.x - self.cx;
                 let dy = pt.y - self.cy;
@@ -25,11 +25,8 @@ impl Transformers for Rotate {
                 let sin = self.angle.sin();
                 let x = (dx * cos - dy * sin) + self.cx;
                 let y = (dx * sin + dy * cos) + self.cy;
-            Point { x,
-                y,
-                ..*pt
-            }
-        }).collect()
+                Point { x, y, ..*pt }
+            })
+            .collect()
     }
 }
-

src/transformer/translate.rs

@@ -1,24 +1,25 @@
-use crate::transformer::Transformers;
 use crate::point::Point;
+use crate::transformer::Transformers;
 use crate::worldstate::WorldState;
-use serde::{Serialize,Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// Translate
 
 #[derive(Serialize, Deserialize, Debug, Clone, Copy)]
 pub struct Translate {
     pub x: f32,
-    pub y: f32
+    pub y: f32,
 }
 
 impl Transformers for Translate {
     fn apply(&self, point_list: &[Point], _ws: &WorldState) -> Vec<Point> {
-	point_list.iter()
-	    .map(| pt | {
-		Point { x: pt.x + self.x,
+        point_list
+            .iter()
+            .map(|pt| Point {
+                x: pt.x + self.x,
                 y: pt.y + self.y,
                 ..*pt
-		}
-	    }).collect()
+            })
+            .collect()
     }
 }

src/worldstate.rs

@@ -1,7 +1,7 @@
-use crate::point::{Point, Color};
-use nalgebra::base::{Matrix3, Matrix1x3};
 use crate::errors::{LJError, LJResult};
+use crate::point::{Color, Point};
 use log::debug;
+use nalgebra::base::{Matrix1x3, Matrix3};
 
 #[derive(Debug, Default)]
 pub struct EDH {
@@ -10,17 +10,15 @@ pub struct EDH {
 
 impl EDH {
     pub fn new(vec: Vec<Vec<f32>>) -> LJResult<EDH> {
-		if vec.len() != 3 ||
-			vec[0].len() != 3 ||
-			vec[1].len() != 3 ||
-			vec[2].len() != 3 {
+        if vec.len() != 3 || vec[0].len() != 3 || vec[1].len() != 3 || vec[2].len() != 3 {
             return Err(Box::new(LJError::BadEDH));
         }
 
         // this is the matrix already transposed.
-		let matrix = Matrix3::new(vec[0][0], vec[1][0], vec[2][0],
-		                          vec[0][1], vec[1][1], vec[2][1],
-		                          vec[0][2], vec[1][2], vec[2][2]);
+        let matrix = Matrix3::new(
+            vec[0][0], vec[1][0], vec[2][0], vec[0][1], vec[1][1], vec[2][1], vec[0][2], vec[1][2],
+            vec[2][2],
+        );
 
         Ok(EDH { matrix })
     }
@@ -28,7 +26,11 @@ impl EDH {
     pub fn apply(&self, point: &Point) -> Point {
         let p = Matrix1x3::new(point.x, point.y, 1.0);
         let p = p * self.matrix;
-		let new_p = Point { x: p[0] / p[2], y: p[1] / p[2], ..*point };
+        let new_p = Point {
+            x: p[0] / p[2],
+            y: p[1] / p[2],
+            ..*point
+        };
 
         debug!("{:?} => {:?}", point, new_p);
 

tests/test_conf.rs

@@ -1,4 +1,4 @@
-use lj_rust::conf::{Conf, DacFamily, HeliosConf, EtherDreamConf};
+use lj_rust::conf::{Conf, DacFamily, EtherDreamConf, HeliosConf};
 
 #[test]
 fn it_loads_a_valid_conf() {