latkit

Columnar data, queries, and scenes rendered with WebGPU, Vulkan, Metal, or DX12. Guides | Rust API

cargo add latkit

use latkit::{Data, Ids, Patch, Query, Table, field};

fn main() -> Result<(), latkit::Error> {
    let mut data = Data::new("grid");
    data.apply(Patch::new().replace(Table::new("Bus", Ids::count(2)).field("kv", vec![115.0, 230.0])))?;
    let (high_voltage, total) = data.query(&Query::of("Bus").filter(field("kv").ge(200.0)))?;
    assert_eq!((high_voltage.len(), total), (1, 1));
    Ok(())
}

• default-features = false: data, patches, LATK, JSON loading, queries, expressions, colormaps, GeoJSON, and images; no GPU dependency.
• gpu (default): scenes, views, picking, layouts, and rendering into wgpu targets.
• native: system fonts, file loading, jobs, and Windows Media Foundation video.
• web: browser integration on wasm32-unknown-unknown.

cargo install latkit-cli installs the latkit executable. npm install latkit installs the browser runtime and plain-data builders.

LATK v1 uses 64-bit absolute frame indexes. Sampled values use f32; coordinates use f64. See the format specification.

MIT licensed. Notices are included in THIRD_PARTY.md and colormaps/NOTICES.md.