Question 1

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

Accepted Answer

Use the `parse::<GeoJson>()` 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.

Question 2

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

Accepted Answer

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.

Question 3

Does rust-geojson support 3D coordinates in GeoJSON?

Accepted Answer

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.

Question 4

How to add custom properties to a GeoJSON feature?

Accepted Answer

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.

Question 5

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

Accepted Answer

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.

Question 6

What's the performance like for large GeoJSON datasets?

Accepted Answer

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.

rust-geojson

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