How to parse a GeoJSON file from a string using rust-geojson?

Use the `parse:: ()` method on a string, as shown in the README reading example. It returns a `GeoJson` enum or an error if the data is invalid, with built-in validation against the spec.

rust-geojson vs geo crate: which one should I use?

rust-geojson is for serializing/deserializing GeoJSON data, while the geo crate provides spatial algorithms. Use rust-geojson for I/O tasks and geo for computations; they are often used together in Rust GIS projects.

Does rust-geojson support 3D coordinates in GeoJSON?

Yes, it supports coordinates with up to three dimensions (longitude, latitude, altitude) as per the GeoJSON spec, implemented in the geometry types like Point and LineString.

How to add custom properties to a GeoJSON feature?

Use the `JsonObject` to insert properties, as demonstrated in the writing example. You can add key-value pairs like 'name' to the properties field, preserving them during serialization.

Can I use rust-geojson with serde for custom struct serialization?

Yes, it integrates with serde for flexible serialization, allowing you to map custom Rust structs to GeoJSON format, though it requires additional configuration for complex cases.

What's the performance like for large GeoJSON datasets?

Performance is decent for typical use cases, but for very large files, memory usage might be high since it loads entire datasets; streaming or chunked processing isn't built-in.

Open-Awesome

rust-geojson

Apache-2.0Rust

A Rust library for serializing and deserializing GeoJSON vector GIS file format.

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What is rust-geojson?

geojson is a Rust library for working with the GeoJSON vector GIS file format. It provides tools for parsing, validating, and serializing geographic data structures according to the official GeoJSON specification. The library enables Rust developers to easily integrate geographic data into their applications with type safety and proper error handling.

Target Audience

Rust developers working with geographic data, GIS applications, or spatial analysis who need to read, write, or manipulate GeoJSON files in their projects.

Value Proposition

Developers choose this library because it provides a complete, spec-compliant implementation of GeoJSON in Rust with an idiomatic API, type safety, and seamless integration with Rust's ecosystem, making it the standard choice for GeoJSON handling in Rust.

Overview

Library for serializing the GeoJSON vector GIS file format

Use Cases

Best For

Parsing GeoJSON data from external sources in Rust applications
Serializing custom geographic data to GeoJSON format
Building GIS tools or spatial analysis applications in Rust
Validating GeoJSON data against the official specification
Converting between different geographic data formats in Rust
Creating REST APIs that serve geographic data in GeoJSON format

Not Ideal For

Projects requiring advanced spatial operations like buffering or intersection calculations, as the library focuses solely on data serialization without built-in GIS algorithms.
Teams heavily invested in polyglot ecosystems where non-Rust languages dominate, as this library is Rust-specific and requires integration efforts.
Applications needing real-time processing of streaming GeoJSON data, where performance optimizations for large datasets might be lacking.

Pros & Cons

Pros

Complete Spec Compliance

Implements all GeoJSON geometry and collection types per the official specification, ensuring correct handling of geographic data structures.

Type-Safe API

Leverages Rust's type system to enforce valid GeoJSON structures at compile time, reducing runtime errors and improving code reliability.

Flexible Serialization

Supports both reading from and writing to GeoJSON strings with proper error handling, as shown in the README examples for parsing and serialization.

Foreign Members Support

Preserves non-standard JSON properties during serialization/deserialization, allowing for extended use cases without data loss.

Cons

No Spatial Analysis

Limited to GeoJSON serialization; does not provide functions for spatial operations like distance calculation or overlays, requiring additional crates.

Rust Ecosystem Dependency

Heavily relies on integration with other Rust crates for advanced GIS features, which can complicate project setup and increase maintenance.

Basic Error Handling

Error messages might be generic for complex invalid GeoJSON, as the library focuses on spec compliance rather than detailed validation feedback.

Frequently Asked Questions

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