liveplot 1.0.0

Realtime interactive plotting library using egui/eframe, with optional gRPC and Parquet export support.
Documentation 
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//! Example: Sine and cosine live traces
//!
//! What it demonstrates
//! - Streaming two traces concurrently into the multi-trace UI.
//! - Visual comparison of phase between two signals.
//!
//! How to run
//! ```bash
//! cargo run --example sine_cosine
//! ```
//! The UI shows two traces (`sine` and `cosine`) updated at 1 kHz.

use liveplot::{channel_plot, run_liveplot, LivePlotConfig, PlotPoint};
use std::time::{Duration, SystemTime, UNIX_EPOCH};

fn main() -> eframe::Result<()> {
    // Create multi-trace plot channel
    let (sink, rx) = channel_plot();
    let tr_sine = sink.create_trace("sine", None);
    let tr_cos = sink.create_trace("cosine", None);

    // Producer: 1 kHz sample rate, 3 Hz sine and cosine
    std::thread::spawn(move || {
        const FS_HZ: f64 = 1000.0; // 1 kHz sampling rate
        const F_HZ: f64 = 3.0; // 3 Hz
        let dt = Duration::from_millis(1);
        let mut n: u64 = 0;
        loop {
            let t = n as f64 / FS_HZ;
            let s_val = (2.0 * std::f64::consts::PI * F_HZ * t).sin();
            let c_val = (2.0 * std::f64::consts::PI * F_HZ * t).cos();
            let t_s = SystemTime::now()
                .duration_since(UNIX_EPOCH)
                .map(|d| d.as_secs_f64())
                .unwrap_or(0.0);
            // Ignore error if the UI closed (receiver dropped)
            let _ = sink.send_point(&tr_sine, PlotPoint { x: t_s, y: s_val });
            let _ = sink.send_point(&tr_cos, PlotPoint { x: t_s, y: c_val });
            n = n.wrapping_add(1);
            std::thread::sleep(dt);
        }
    });

    // Run the UI until closed (default: FFT hidden). Uses the unified multi-trace engine.
    run_liveplot(rx, LivePlotConfig::default())
}