cityjson-lib

cityjson_lib is the publishable CityJSON facade for Rust, plus the shared FFI surface used by the Python and C++ bindings in this repository.

The current published surface is intentionally small:

• Rust document and feature-stream IO through cityjson_lib::json
• Rust workflow helpers through cityjson_lib::ops
• Rust summary helpers through cityjson_lib::query
• Python and C++ bindings over the shared FFI core

Arrow, Parquet, and wasm are not part of the current release-facing surface.

Quick Start

use cityjson_lib::{json, query};

let model = json::from_file("amsterdam.city.json")?;
let summary = query::summary(&model);
println!("{} cityobjects", summary.cityobject_count);

let bytes = json::to_vec(&model)?;
# let _ = bytes;
# Ok::<(), cityjson_lib::Error>(())

Docs

The minimal docs set lives under docs/. Start with:

• docs/index.md
• docs/guide.md
• docs/public-api.md
• docs/ffi/api.md