Vendor dependencies
Let's see how I like this workflow.
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301
vendor/tui/examples/chart.rs
vendored
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301
vendor/tui/examples/chart.rs
vendored
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@ -0,0 +1,301 @@
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use crossterm::{
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event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode},
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execute,
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terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
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};
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use std::{
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error::Error,
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io,
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time::{Duration, Instant},
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};
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use tui::{
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backend::{Backend, CrosstermBackend},
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layout::{Constraint, Direction, Layout},
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style::{Color, Modifier, Style},
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symbols,
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text::Span,
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widgets::{Axis, Block, Borders, Chart, Dataset, GraphType},
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Frame, Terminal,
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};
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const DATA: [(f64, f64); 5] = [(0.0, 0.0), (1.0, 1.0), (2.0, 2.0), (3.0, 3.0), (4.0, 4.0)];
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const DATA2: [(f64, f64); 7] = [
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(0.0, 0.0),
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(10.0, 1.0),
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(20.0, 0.5),
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(30.0, 1.5),
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(40.0, 1.0),
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(50.0, 2.5),
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(60.0, 3.0),
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];
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#[derive(Clone)]
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pub struct SinSignal {
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x: f64,
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interval: f64,
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period: f64,
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scale: f64,
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}
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impl SinSignal {
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pub fn new(interval: f64, period: f64, scale: f64) -> SinSignal {
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SinSignal {
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x: 0.0,
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interval,
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period,
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scale,
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}
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}
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}
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impl Iterator for SinSignal {
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type Item = (f64, f64);
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fn next(&mut self) -> Option<Self::Item> {
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let point = (self.x, (self.x * 1.0 / self.period).sin() * self.scale);
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self.x += self.interval;
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Some(point)
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}
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}
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struct App {
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signal1: SinSignal,
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data1: Vec<(f64, f64)>,
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signal2: SinSignal,
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data2: Vec<(f64, f64)>,
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window: [f64; 2],
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}
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impl App {
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fn new() -> App {
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let mut signal1 = SinSignal::new(0.2, 3.0, 18.0);
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let mut signal2 = SinSignal::new(0.1, 2.0, 10.0);
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let data1 = signal1.by_ref().take(200).collect::<Vec<(f64, f64)>>();
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let data2 = signal2.by_ref().take(200).collect::<Vec<(f64, f64)>>();
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App {
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signal1,
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data1,
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signal2,
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data2,
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window: [0.0, 20.0],
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}
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}
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fn on_tick(&mut self) {
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for _ in 0..5 {
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self.data1.remove(0);
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}
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self.data1.extend(self.signal1.by_ref().take(5));
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for _ in 0..10 {
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self.data2.remove(0);
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}
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self.data2.extend(self.signal2.by_ref().take(10));
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self.window[0] += 1.0;
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self.window[1] += 1.0;
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}
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}
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fn main() -> Result<(), Box<dyn Error>> {
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// setup terminal
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enable_raw_mode()?;
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let mut stdout = io::stdout();
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execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
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let backend = CrosstermBackend::new(stdout);
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let mut terminal = Terminal::new(backend)?;
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// create app and run it
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let tick_rate = Duration::from_millis(250);
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let app = App::new();
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let res = run_app(&mut terminal, app, tick_rate);
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// restore terminal
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disable_raw_mode()?;
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execute!(
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terminal.backend_mut(),
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LeaveAlternateScreen,
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DisableMouseCapture
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)?;
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terminal.show_cursor()?;
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if let Err(err) = res {
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println!("{:?}", err)
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}
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Ok(())
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}
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fn run_app<B: Backend>(
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terminal: &mut Terminal<B>,
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mut app: App,
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tick_rate: Duration,
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) -> io::Result<()> {
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let mut last_tick = Instant::now();
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loop {
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terminal.draw(|f| ui(f, &app))?;
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let timeout = tick_rate
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.checked_sub(last_tick.elapsed())
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.unwrap_or_else(|| Duration::from_secs(0));
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if crossterm::event::poll(timeout)? {
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if let Event::Key(key) = event::read()? {
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if let KeyCode::Char('q') = key.code {
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return Ok(());
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}
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}
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}
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if last_tick.elapsed() >= tick_rate {
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app.on_tick();
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last_tick = Instant::now();
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}
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}
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}
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fn ui<B: Backend>(f: &mut Frame<B>, app: &App) {
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let size = f.size();
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let chunks = Layout::default()
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.direction(Direction::Vertical)
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.constraints(
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[
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Constraint::Ratio(1, 3),
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Constraint::Ratio(1, 3),
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Constraint::Ratio(1, 3),
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]
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.as_ref(),
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)
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.split(size);
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let x_labels = vec![
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Span::styled(
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format!("{}", app.window[0]),
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Style::default().add_modifier(Modifier::BOLD),
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),
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Span::raw(format!("{}", (app.window[0] + app.window[1]) / 2.0)),
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Span::styled(
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format!("{}", app.window[1]),
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Style::default().add_modifier(Modifier::BOLD),
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),
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];
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let datasets = vec![
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Dataset::default()
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.name("data2")
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.marker(symbols::Marker::Dot)
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.style(Style::default().fg(Color::Cyan))
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.data(&app.data1),
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Dataset::default()
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.name("data3")
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.marker(symbols::Marker::Braille)
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.style(Style::default().fg(Color::Yellow))
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.data(&app.data2),
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];
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let chart = Chart::new(datasets)
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.block(
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Block::default()
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.title(Span::styled(
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"Chart 1",
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Style::default()
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.fg(Color::Cyan)
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.add_modifier(Modifier::BOLD),
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))
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.borders(Borders::ALL),
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)
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.x_axis(
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Axis::default()
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.title("X Axis")
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.style(Style::default().fg(Color::Gray))
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.labels(x_labels)
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.bounds(app.window),
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)
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.y_axis(
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Axis::default()
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.title("Y Axis")
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.style(Style::default().fg(Color::Gray))
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.labels(vec![
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Span::styled("-20", Style::default().add_modifier(Modifier::BOLD)),
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Span::raw("0"),
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Span::styled("20", Style::default().add_modifier(Modifier::BOLD)),
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])
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.bounds([-20.0, 20.0]),
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);
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f.render_widget(chart, chunks[0]);
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let datasets = vec![Dataset::default()
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.name("data")
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.marker(symbols::Marker::Braille)
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.style(Style::default().fg(Color::Yellow))
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.graph_type(GraphType::Line)
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.data(&DATA)];
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let chart = Chart::new(datasets)
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.block(
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Block::default()
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.title(Span::styled(
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"Chart 2",
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Style::default()
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.fg(Color::Cyan)
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.add_modifier(Modifier::BOLD),
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))
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.borders(Borders::ALL),
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)
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.x_axis(
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Axis::default()
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.title("X Axis")
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.style(Style::default().fg(Color::Gray))
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.bounds([0.0, 5.0])
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.labels(vec![
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Span::styled("0", Style::default().add_modifier(Modifier::BOLD)),
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Span::raw("2.5"),
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Span::styled("5.0", Style::default().add_modifier(Modifier::BOLD)),
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]),
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)
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.y_axis(
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Axis::default()
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.title("Y Axis")
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.style(Style::default().fg(Color::Gray))
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.bounds([0.0, 5.0])
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.labels(vec![
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Span::styled("0", Style::default().add_modifier(Modifier::BOLD)),
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Span::raw("2.5"),
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Span::styled("5.0", Style::default().add_modifier(Modifier::BOLD)),
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]),
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);
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f.render_widget(chart, chunks[1]);
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let datasets = vec![Dataset::default()
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.name("data")
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.marker(symbols::Marker::Braille)
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.style(Style::default().fg(Color::Yellow))
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.graph_type(GraphType::Line)
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.data(&DATA2)];
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let chart = Chart::new(datasets)
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.block(
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Block::default()
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.title(Span::styled(
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"Chart 3",
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Style::default()
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.fg(Color::Cyan)
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.add_modifier(Modifier::BOLD),
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))
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.borders(Borders::ALL),
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)
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.x_axis(
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Axis::default()
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.title("X Axis")
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.style(Style::default().fg(Color::Gray))
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.bounds([0.0, 50.0])
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.labels(vec![
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Span::styled("0", Style::default().add_modifier(Modifier::BOLD)),
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Span::raw("25"),
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Span::styled("50", Style::default().add_modifier(Modifier::BOLD)),
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]),
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)
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.y_axis(
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Axis::default()
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.title("Y Axis")
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.style(Style::default().fg(Color::Gray))
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.bounds([0.0, 5.0])
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.labels(vec![
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Span::styled("0", Style::default().add_modifier(Modifier::BOLD)),
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Span::raw("2.5"),
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Span::styled("5", Style::default().add_modifier(Modifier::BOLD)),
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]),
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);
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f.render_widget(chart, chunks[2]);
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}
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