gpui-liveplot

gpui-liveplot is a high-performance plotting library for GPUI, designed for append-only telemetry and sensor streams.

It focuses on GPUI-native layout, rendering, and interaction for real-time charts.

Features

Append-only data model optimized for streaming workloads.
Shared plot-level axes across all series.
Viewport-aware decimation with multi-level summaries for stable interaction at scale.
Interactive pan, zoom, box-zoom, hover readout, and point pinning.
Linked multi-plot interactions (x/y view sync, cursor sync, brush sync, reset sync).
Configurable styles and dark/light themes.

Installation

Add this crate to your project:

[dependencies]
gpui-liveplot = "0.2"

If your app uses gpui-component, enable theme integration:

[dependencies]
gpui-liveplot = { version = "0.2", features = ["gpui_component_theme"] }

In Rust code, import it as gpui_liveplot:

use gpui_liveplot::{Plot, Series, SeriesKind};

Quick Start

use gpui::{AppContext, Application, Bounds, WindowBounds, WindowOptions, px, size};
use gpui_liveplot::{AxisConfig, Plot, PlotView, Series, SeriesKind, Theme};

Application::new().run(|cx| {
    let options = WindowOptions {
        window_bounds: Some(WindowBounds::Windowed(Bounds::centered(
            None,
            size(px(720.0), px(480.0)),
            cx,
        ))),
        ..Default::default()
    };

    cx.open_window(options, |_window, cx| {
        let series = Series::from_iter_y(
            "signal",
            (0..400).map(|i| (i as f64 * 0.03).sin()),
            SeriesKind::Line(Default::default()),
        );

        let mut plot = Plot::builder()
            .theme(Theme::dark())
            .x_axis(AxisConfig::builder().title("Sample").build())
            .y_axis(AxisConfig::builder().title("Amplitude").build())
            .build();
        plot.add_series(&series);

        cx.new(|_| PlotView::new(plot))
    })
    .unwrap();
});

Streaming Data

Series is append-only. You can keep a shared handle and push new points over time.

Implicit X mode: Series::line / Series::scatter + push_y / extend_y
Explicit X/Y mode: Series::from_iter_points + push_point / extend_points

Plot::add_series stores a shared series handle, so appends from other handles become visible immediately.

View Modes

View::AutoAll (default)
View::Manual
View::FollowLastN
View::FollowLastNXY

Interaction (GPUI Backend)

Left drag in plot area: pan
Right drag in plot area: box zoom
Mouse wheel in plot area: zoom both axes around cursor
Mouse wheel on axis area: zoom single axis
Left click: toggle nearest-point pin
Double click in plot area: reset view

Multi-Plot Linking

Use PlotLinkGroup and PlotLinkOptions to link multiple PlotView instances.

See examples/advanced.rs for a complete linked-streaming demo.

Examples

Basic usage: cargo run --example basic
Streaming + linked plots: cargo run --example advanced

Performance Notes

Line rendering is kept close to O(plot_width) through decimation.
Multi-level summaries speed up zoomed-out views.
Render caching is keyed by viewport, size, and data generation.

Limitations

Append-only workflows are the primary optimization target.
Only linear axes are currently supported.

Development

RUSTC_WRAPPER= cargo check
RUSTC_WRAPPER= cargo clippy --all-targets
cargo test

License

MIT. See LICENSE.

gpui-liveplot 0.2.1